Measuring Value Block

Transcription

1 Página 1 de Measuring Value Block Safety precautions Observe following if test and measuring instruments are required during a test drive: Test and measuring instruments must be secured to rear seat and operated by a 2nd person from this location. If test and measuring instruments are operated from front passenger's seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.

2 Página 2 de Read Measuring Value Block (function 08) VAG1551 scan tool with VAG1551/3B cable Test conditions Coolant temperature must be at least 80 C, display group 04, display zone 3. All electrical consumers, e.g. lights and rear window heating must be switched off If the vehicle is equipped with an air conditioner, this must be switched off. On vehicles with automatic transmission selector lever in "P" or "N" position No DTCs must be stored in DTC memory Page 01-21, checking DTC memory

3 Página 3 de Work sequence - Connect VAG1551 scan tool (VAG1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idling speed. (Connecting scan tool and selecting engine control module Page ) Rapid data transfer Select function XX HELP Indicated on display: - Press keys 0 and 8 for function "Read Measuring Value Block" and confirm entry with Q key. Read Measuring Value Block Input display group number XXX HELP Indicated on display: - Select required display group number. Note: The display group number 1 is an example, to illustrate the sequence. - Press keys 0, 0 and 1 for "Display group number 1" and confirm entry with Q key. Read Measuring Value Block Indicated on display: (1 to 4 Display zones)

4 Página 4 de Note: To change to another display group proceed as follows: Display group VAG1551 VAG1552 Higher Press key 3 Press key Lower Press key 1 Press key Skip Press key C Press key C - If specifications in all display zones are obtained, press key. Rapid data transfer Select function XX HELP Indicated on display: - Press keys 0 and 6 for "End data transfer" function and confirm input with Q key. Note: Measured value blocks which are not described in this chapter are currently only intended for the research and development and production. The values displayed are not relevant for service department troubleshooting.

5 Página 5 de Measuring value blocks, evaluating display groups 0 to 9 (Basic functions) Display group 1 (Basic functions) Engine running at idling speed Read Measuring Value Block 1 xxxx xx.x C x.x% xxxxxxxx Indicated on display Adjustment conditions for basic setting Oxygen sensor regulator before catalyst 1x Page to 10.0% Page Coolant temperature 80 to 110 C Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 Page

6 Página 6 de Significance of 8-digit number block for readiness code Significance if display = Significance 1 Coolant temperature above 80 C 1 Speed below Throttle valve closed 1 Oxygen sensor control OK. 1 Idling switch closed 1 Air conditioner compressor switched off 1 CAT-Temp. over 350 C 1 No DTCs recognized by On Board Diagnostic (OBD)

7 Página 7 de Evaluating display group 1, display zone 1 - Engine speed (idling speed) Appears on display Less than 640 or 700 More than 760 or 820 Possible cause Throttle valve control module sticking or faulty Idling switch not closed/faulty Large amount of unmetered air (cannot be compensated for by the idling stabilization) Throttle valve control module sticking/faulty Corrective action - Check throttle valve control module Page Perform idling check Page Check DTC Memory Page Check intake air system for leaks Page Check throttle valve control module Page Perform idling check Page 24-95

8 Página 8 de Display group 2 (Basic functions) Mass Air Flow (MAF) sensor Engine running at idling speed Read Measuring Value Block 2 Note: xxxx xxx% x.x ms x.x g/s Indicated on display For display zone 4: Air mass drawn in 2.0 to 4.5 g/s Page Injection period Engine code AWW Engine code AWP 2.0 to 4.0 ms 1.5 to 4.0 ms Page Engine load 15 to 25% Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 The air mass measured by the Mass Air Flow (MAF) sensor is indicated. Page

9 Página 9 de Evaluating display group 2, display zone 3 - Injection period Appears on display Less than 2.0 ms More than 4.0 ms Possible cause Large amount of fuel from the Evaporative Emission (EVAP) system Incorrect injectors with greater throughput installed Increased engine load due to electric consumers, air conditioner, gear selected or power steering on full lock Corrective action - Check EVAP canister purge regulator valve Page 01-94, Output Diagnostic Test Mode - Check injection rate Page Eliminate increased load (air conditioner, power steering etc.) Evaluating display group 2, display zone 4 - Air mass drawn in Appears on display Less than 2.0 g/s Greater than 4.5 g/s Possible cause Large amount of unmetered air between intake manifold and Mass Air Flow (MAF) sensor Gear selected (automatic transmission) Engine loaded due to ancillaries Corrective action - Repair unmetered air - Place selector lever in P or N - Eliminate load (air conditioner, power steering etc.)

10 Página 10 de Display group 3 (Basic functions) Mass Air Flow (MAF) sensor Engine running at idling speed Read Measuring Value Block 3 xxxx x.xx ms x.x% xx.x BTDC Indicated on display Display zones Ignition angle Engine code AWW Specification 6 to 12 BTDC Evaluation --- Engine code AWP Throttle valve angle (potentiometer 1 -G187-) 5 to 12 BTDC 0.2 to 4.0% Page Air mass drawn in 2.0 to 4.5 g/s Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 Page Note: For display zone 3: Display values must be approx. 100% when accelerator pedal is fully depressed.

11 Página 11 de Display group 4 (Basic functions) Engine running at idling speed Read Measuring Value Block 4 xxxx Note: xx.xxx V xxx.x C xxx.x C Indicated on display For display zone 3: Intake air temperature -48 to 110 C Page Coolant temperature 60 to 110 C Page Voltage supply for engine control module Engine speed (idling speed): Manual transmission Automatic transmission 12.0 to 15.0 V Page to to 760 Page The engine control module will use the intake air temperature as a replacement value for an engine start (start temperature - replacement value) as soon as there is a malfunction stored in the DTC memory, which affects the Engine Coolant Temperature (ECT) Sensor - G62-. The temperature then rises according to a model stored in the control module. When the engine has reached normal working temperature a fixed replacement value will be displayed after a certain period. This fixed value is also dependent upon the intake air temperature. Note: For display zone 4: The total temperature range is given as the specification. The displayed value must be above ambient temperature.

12 Página 12 de Evaluating display group 4, display zone 2 - Control module voltage supply Appears on display Less than 12.0 V More than 15.0 V Possible cause Alternator faulty, battery charge state low Battery heavily charged shortly after starting due to high charging current and current consumers Transfer resistance in the current supply or the engine control module Ground (GND) connection Current draw when ignition is off Voltage regulator on alternator faulty Excess voltage due to jump starting or quick charging unit Corrective action - Check alternator and battery voltage, charge battery: Repair Manual, Electrical Equipment, Repair Group 27 - Increase revs slightly for a few minutes and switch off current consumers - Check engine control module voltage supply Page Eliminate current draw - Check voltage regulator, replace if necessary: Repair Manual, Electrical Equipment, Repair Group 27 - Check DTC Memory Page 01-21

13 Página 13 de Evaluating display group 4, display zone 3 - Coolant temperature Appears on display Less than 60 C Greater than 110 C Possible cause Engine too cold Coolant temperature sensor or wiring to engine control module Radiator soiled Coolant fan not functioning Thermostat faulty Coolant temperature sensor or wiring to engine control module Corrective action - If necessary test drive vehicle - Check coolant temperature sensor Page Clean radiator - Check function Electrical Wiring Diagrams, Troubleshooting & Component Locations - Check thermostat Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 19; Removing and installing parts of cooling system: Parts of cooling system - engine side - Check coolant temperature sensor Page Constant C Constant 143 C Wiring open circuit - Check coolant temperature sensor Page Short between wires 3 and 4

14 Página 14 de Evaluating display group 4, display zone 4 - Intake air temperature Appears on display Constant C Possible cause Wiring open circuit Corrective action - Check intake air temperature sensor Page Constant 143 C Short between wires 1 and 2

15 Página 15 de Display group 5 (Basic functions) Engine running at idling speed Read Measuring Value Block 5 xxxx xxx% xxx km/h Text Indicated on display Operating mode (idling, part throttle, enrichment, overrun) Idling Road speed 0 km/h --- Engine load 15 to 25% Page Engine speed (idling speed): Note on display zone 2: Manual transmission Automatic transmission Engine load at idle is given as the specified value. 700 to to Page

16 Página 16 de Display group 6 (Basic functions) Engine running at idling speed Read Measuring Value Block 6 xxxx Note: xxx% xxx.x C xx.x% Indicated on display For display zone 2: Altitude correction factor to 20.0% --- Intake air temperature -48 to 110 C Page Engine load 15 to 25% Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 Page Engine load at idle is given as the specified value. For display zone 3: The total temperature range is given as the specification. The displayed value must be above ambient temperature.

17 Página 17 de Only engine code AWP with automatic transmission: Display group 8 -Basic function- Vacuum pump for brakes Ignition on, engine not running Read measured value block 8 Text Text xxx mbar Indicated on display Absolute pressure / brake booster Electrical vacuum pump ON/OFF Brake pedal --- not depressed depressed

18 Página 18 de Measuring value blocks, evaluating display groups 10 to 29 (Ignition) Display group 10 (Ignition) Engine running at idling speed Read Measuring Value Block 10 xxxx xxx% x.x% xx.x BTDC Indicated on display Display zones Ignition angle Engine code AWW Specification 5 to 15 BTDC Evaluation --- Engine code AWP Throttle valve angle (potentiometer 1 -G187-) 4 to 15 BTDC 0.3 to 4.0% Page Engine load 10 to 25% Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 Page Note: For display zone 2: Engine load at idle is given as the specified value. For display zone 3:

19 Página 19 de 82 Display values must be approx. 100% when accelerator pedal is fully depressed.

20 Página 20 de Evaluating display group 10, display zone 2 - Engine load Appears on display Less than 10% More than 25% Possible cause Lesser values can only occur when driving in overrun Rough idling (not running on all cylinders) Electric consumers switched on Steering wheel at full lock Gear selected (automatic transmission) Mass Air Flow (MAF) sensor faulty Corrective action - Injectors or spark plugs faulty - Switch off electric consumers - Set steering wheel to center position - Place selector lever in P or N - Check Mass Air Flow (MAF) sensor Page Evaluating display group 10, display zone 3 - Throttle valve angle Appears on display More than 4% Possible cause Engine control module not matched to throttle valve control module Throttle positon sensor in throttle valve control module faulty Throttle valve sticking Corrective action - Match engine control module to throttle valve control module Page Check throttle valve control module Page Eliminate cause

21 Página 21 de Display group 14 (Ignition) Misfire recognition Engine running at idling speed Read Measuring Value Block 14 xxxx xxx% xxx Text Note: Indicated on display For display zone 3: Misfire recognition (active, blocked) active Page Misfire total Engine load 10 to 25% Page Engine speed (idling speed): Manual transmission Automatic transmission 700 to to 760 Page The total of the detected misfires is displayed here. It provides no information about the time period in which the misfires have occurred. Therefore, check misfire recognition while driving Page

22 Página 22 de Display group 15 -Ignition- Misfire recognition Cyl. 1 to Cyl. 3 While driving Read measured value block 15 xxx xxx xxx Text Indicated on display Misfire recognition (activated, blocked) activated --- Misfire Cyl. 3 0 Page Misfire Cyl. 2 0 Page Misfire Cyl. 1 0 Page

23 Página 23 de Display group 16 -Ignition- misfire recognition Cyl. 4 While driving Read measured value block 16 xxx Text Indicated on display Misfire recognition (activated, blocked) activated --- Misfire Cyl. 4 0 Page

24 Página 24 de Evaluating display group 14, display zone 3 - Total number of misfires Appears on display Possible cause Corrective action Greater than specification Spark plug faulty Spark plug connector faulty Ignition coil faulty Ignition coil output stage faulty - Check ignition coils with output stage Page Check spark plugs Page 28-7 Injector faulty - Check injectors Page 24-75

25 Página 25 de Display group 22 (Ignition) Knock control While driving Read Measuring Value Block 22 xxxx Note: x.xx% xx.x CA xx.x CA Indicated on display No. 2 Cyl. retardation of ignition timing by knock control No. 1 Cyl. retardation of ignition timing by knock control 0 to CA 0 to CA Engine load 10 to 150% --- Engine speed (idling speed) For display zones 3 and 4: Manual transmission Automatic transmission The displayed value should be 0.0 CA at idling. 700 to to 6800 Page Page Page

26 Página 26 de Display group 23 (Ignition) Knock control While driving Read Measuring Value Block 23 xxxx Note: x.xx% xx.x CA xx.x CA Indicated on display No. 4 Cyl. retardation of ignition timing by knock control No. 3 Cyl. retardation of ignition timing by knock control 0 to CA 0 to CA Engine load 10 to 150% --- Engine speed (idling speed) For display zones 3 and 4: Manual transmission Automatic transmission The displayed value should be 0.0 Crankshaft Angle (CA) at idling. 700 to to 6800 Page Page Page

27 Página 27 de Evaluating display groups 22/23, display zones 3 and 4 - Retardation of ignition Appears on display All cylinders CA One cylinder deviates greatly from the others Possible cause Knock sensor faulty Connector corroded Knock sensor incorrectly tightened Ancillary components on engine loose Poor fuel quality Connector corroded Engine damaged Ancillary components on engine loose Corrective action - Check knock sensors Page Loosen knock sensor and tighten to 20 Nm - Tighten ancillary components - Change type of fuel - Check knock sensors Page Check compression pressures: Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 15; Removing and installing cylinder head; Checking compression pressure - Tighten ancillary components

28 Página 28 de Display group 28 (Ignition) knock control While driving Read Measuring Value Block 28 xxxx xx.x% xxx.x C Text Indicated on display Result of knock sensor test (Test on / Test off / Sys. OK. / Sys. n.ok. Sys. OK. --- Coolant temperature 40 to 110 C Page Engine load 15 to 175% --- Engine speed 2200 to

29 Página 29 de Measuring value blocks, evaluating display groups 30 to 49, 99, 107 (oxygen sensor control) Display group 30 (oxygen sensor control) Engine running at idling speed Read Measuring Value Block 30 xxx xxx Indicated on display Note: For display zones 2: Oxygen sensor control status after catalyst 110 Page Oxygen sensor control status before catalyst 111 Page The 3rd display position is not set to 1 until in part throttle range.

30 Página 30 de Significance of 3 digit number block in display zones 1 and 2 Significance if display = Oxygen sensor control active 1 Oxygen sensor operationally ready 1 Oxygen sensor heating on

31 Página 31 de Display group 32 (oxygen sensor control) Oxygen sensor learned values Engine running at idling speed Read Measuring Value Block 32 xx.x% xx.x% Indicated on display Oxygen sensor learned value at part load (multiplicative) Oxygen sensor learned value at idling speed (additive) -10 to 10% Page to 10% Page Note: For display zones 1 and 2: Low values indicate that the engine is running too rich and therefore the oxygen sensor control is leaning the mixture. High values indicate that the engine is running too lean and therefore the oxygen sensor control enriches the mixture. If there is no voltage supply to the control module all the values learned will be cancelled. add = additive - The effects of the malfunction (e.g. unmetered air) will reduce as the engine speed increases. The injection period will be modified by a fixed amount for additive learned values. This amount is not dependent upon the basic injection period. mul = multiplicative - The effects of the malfunction (e.g. malfunctioning injector) will increase as the engine speed increases. A multiplicative learned value is a proportional change to the injection period. This change is dependent on the basic injection period.

32 Página 32 de Note: Initiating learning process: Control module in mode 04, Basic settings Learning conditions for idling: Idling, coolant temperature min. 75 temperature max. 90 C C, intake air Learning conditions for part load: coolant temperature min. 75 max. 90 C C, intake air temperature EVAP canister purge regulator valve must be closed and the A/C compressor must be off. Evaluating display zone 32, display zones 1 and 2 - Oxygen sensor learned values Appears on display Low oxygen sensor learned values Possible cause Low learned values at idling but with normal learned values at part throttle: possible oil dilution (high level of fuel in oil) Corrective action - Disappears after motorway drive or oil change Injector leaking - Check injector Page Fuel pressure too high EVAP canister purge regulator valve permanently open Mass Air Flow (MAF) sensor faulty Oxygen sensor heating faulty or oxygen sensor soiled - Check fuel pressure regulator and holding pressure Page Check EVAP canister purge regulator valve Page 01-94, Output Diagnostic Test Mode - Check Mass Air Flow (MAF) sensor Page Check oxygen sensor heating Page 24-26

33 Página 33 de Appears on display High oxygen sensor learned values Possible cause High learned values at idling speed, not so high learned values at part throttle: possible unmetered air in area of intake manifold Corrective action - Check intake air system for leaks Page Unmetered air between Mass Air Flow (MAF) sensor and throttle valve Injector blocked Display zones 1 and 2 high: Mass Air Flow (MAF) sensor faulty Fuel pressure too low Unmetered air at exhaust manifold gasket Oxygen sensor heating faulty or oxygen sensor soiled - Repair cause - Check quantity injected rate Page Check Mass Air Flow (MAF) sensor Page Check fuel pressure regulator and holding pressure Page Check oxygen sensor heating Page 24-26

34 Página 34 de Display group 33 (oxygen sensor control) Oxygen sensor control values Engine running at idling speed Read Measuring Value Block 33 xx.x% x.xxx V Indicated on display Note: For display zone 1: Oxygen sensor voltage, oxygen sensor before catalyst to V Page Oxygen sensor regulator before catalyst to 10.0% Page The display must fluctuate around 0. If constant 0 is displayed, the oxygen sensor control has switched from regulation to control, because there is a malfunction in the oxygen sensor control. Check DTC Memory Page

35 Página 35 de Evaluating display group 33, display zone 1 - oxygen sensor regulator before catalyst Appears on display Outside tolerance range Possible cause Minus range: Mixture too rich, oxygen sensor control weakens mixture Positive range: Mixture too lean, oxygen sensor control enriches mixture Unmetered air Corrective action - Wait 30 seconds until display has stabilized - Check intake system for leaks Page Injector faulty - Check injection rate Page Oxygen sensor learned value on limit - Check oxygen sensor learned value in display group 32

36 Página 36 de Readiness code Display group 34 (oxygen sensor control) oxygen sensor diagnostic before catalyst (checking age via cycle duration monitoring) Vehicle stationary, engine running at increased idling speed Control module in mode 04-Basic settings Read Measuring Value Block 34 xxxx xxx.x C xx.xx s Text Indicated on display Result of oxygen sensor before catalyst age check (test OFF/test ON/B1-S1 OK / B1-S1 n.ok) Note: Cycle duration oxygen sensor before catalyst B1-S1 OK to Catalyst temperature 350 to 500 C --- Engine speed 1800 to 2200 rpm For display zone 2: Value calculated from engine speed and engine load. ---

37 Página 37 de Readiness code Display group 36 (oxygen sensor control) Operational readiness of oxygen sensor after catalyst Engine running at idling speed Control module in mode 04-Basic settings Read Measuring Value Block 36 x.xxx V Text Indicated on display Check oxygen sensor after catalyst (Test OFF/Test ON/B1-S2 OK / B1-S2 n.ok) Oxygen sensor voltage, oxygen sensor after catalyst B1-S2 OK to V --- Page

38 Página 38 de Evaluating display group 36, display zone 1 - Oxygen sensor voltage,oxygen sensor after catalyst Appears on display Constant V Constant between to V Constant V Possible cause Short to positive via: oxygen sensor, sensor wiring, Ground (GND) wiring, engine control module Open circuit via: oxygen sensor, sensor wiring, Ground (GND) wiring, engine control module Short to Ground (GND) via: oxygen sensor, sensor wiring, Ground (GND) wiring, engine control module Corrective action - Check oxygen sensor wiring Page

39 Página 39 de Readiness code Display group 37 (oxygen sensor control) oxygen sensor - dwell period test Engine running at idling speed Control module in mode 04-Basic settings Read Measuring Value Block 37 xxx% Note: x.xxx V xxxx ms Text Indicated on display Result (Test On / OFF / Syst. OK / n.ok) Dwell period oxygen sensor control before catalyst Oxygen sensor voltage, oxygen sensor after catalyst Syst. OK to to V Engine load 10 to 150% --- For display zone 1: The entire display range is given. Page

40 Página 40 de Display group 41 (oxygen sensor control) oxygen sensor heating Engine running at idling speed Read Measuring Value Block 41 x.x kohm Text x.x kohm Text Indicated on display Oxygen sensor heating after catalyst Oxygen sensor heating after catalyst, resistance Oxygen sensor heating before catalyst Htg.aC.ON Htg.aC.OFF 0.0 to 2.0 kohm Htg.bC.ON Htg.bC.OFF Note: For display zones 2 and 4: The oxygen sensor heating may be switched ON or OFF depending on the operating conditions of the engine, therefore the display in display zone 2 or 4 may show "Htg.b(a) C.ON" or alternating from "Htg.b(a)C.ON" to Htg.b(a)C.OFF". Note: For display zone 3: In the case of oxygen sensor heating open circuit, there will be no display in Display group 3.

41 Página 41 de Readiness code Display group 43 (oxygen sensor control) oxygen sensor diagnostic after catalyst (ageing check) Vehicle stationary, engine running at increased idling speed Control module in mode 04-Basic settings Read Measuring Value Block 43 xxxx xxx.x C xx.xx s Text Indicated on display Result of aging check of oxygen sensor after catalyst (test OFF/test ON/B1-S2 OK / B1-S2 n.ok) Oxygen sensor voltage, oxygen sensor after catalyst B1-S1 OK to V Catalyst temperature min. 300 C Engine speed 1800 to 2200 rpm --- Note: For display zone 2: Value calculated from engine speed and engine load.

42 Página 42 de Readiness code Display group 46 (oxygen sensor control) Catalyst diagnostic (conversion test) Vehicle stationary, engine running at increased idling speed Control module in mode 04-Basic settings Read Measuring Value Block 46 xxxx xxxx C x.xx Text Indicated on display Result of catalyst conversion test (Test OFF/test ON/Cat B1 OK/Cat B1 n.ok) Cat B1 OK --- Amplitude ratio 0.00 to Catalyst temperature min. 440 C --- Engine speed 1800 to 2200 rpm ---

43 Página 43 de Display group 99 -Oxygen sensor control - oxygen sensor operating condition Engine running at idling speed Control module in mode 04-Basic setting, oxygen sensor control off Control module in mode 08-Read measured value block, oxygen sensor control on Read measured value block 99 xxxx rpm xx.x C x.x% Text Indicated on display Engine speed Notes on display zone 4: Oxygen sensor control operating mode -Cont. OFF or -Cont. ON Oxygen sensor control % Page Coolant temperature C Page Manual transmission Automatic transmission rpm rpm --- Page For a defined fault finding the oxygen sensor control is switched off when selecting display group 99 under "Basic setting" or switched on under "Read measured value block". When the function 04 "Basic setting" is exited the oxygen sensor control is automatically active again. It is possible to switch between the function 04 "Basic setting" and the function 08 "Read measured value block" by pressing the keys 4 and 8 on V.A.G 1551/1552.

44 Página 44 de Readiness code Display group 107 -Oxygen sensor control- Diagnostic of fuel system Engine running at idling speed Control module in mode 04-Basic settings Read Measuring Value Block 107 xxxx x.x% Text Indicated on display Result of diagnostic (Test OFF/Test ON / Syst. OK / Syst. n.ok) Syst. OK --- Oxygen sensor control (mean value) Engine speed (idling speed): Manual transmission Automatic transmission to 23.0% 700 to to Page

45 Página 45 de Measuring value blocks, evaluating display groups 50 to 69 (Speed regulation) Display group 50 (Speed regulation) Operating condition Engine running at idling speed Read Measuring Value Block 50 xxxx xxxx Text Text Indicated on display Air conditioner compressor operating mode ON/OFF Air conditioner operating mode Compr. ON or Compr. OFF A/C-High or Engine speed (idling speed specification): Engine speed (idling speed): Manual transmission Automatic transmission Manual transmission Automatic transmission A/C-Low to to Page Note: For display zone 2: The specified engine speed from engine control module (calculated in control module) is displayed. In exceptional cases the idling speed can be adapted Page The idle speed figures with gear selected are then automatically modified. Note:

46 Página 46 de 82 For display zone 3: A/C-High = Air conditioner demands too high a heating or cooling output A/C-Low = Air conditioner not switched on.

47 Página 47 de Note: For display zone 4: "Compr. OFF" is always displayed on vehicles without air conditioner. Checking signal from and to air conditioner compressor Page Display group 54 (Speed regulation) While driving Read Measuring Value Block 54 xxxx Text xxx% xxx% Indicated on display Angle sensor -1- for throttle drive (power accelerator actuation) - G187- Throttle position (TP) sensor - G79- Operating mode (idling, part load, enrichment, overrun) Engine speed (idling speed) Manual transmission Automatic transmission 0 to 100% to 100% to to 2520 Page

48 Página 48 de Display group 55 (Speed regulation) Idling stabilization Engine running at idling speed Read Measuring Value Block 55 xxxx xx.xx% xx.xx% xxxxx Indicated on display Operating mode xxxxx Page Idling regulator learning value Air conditioner on (A/C High) -6.0 to 6.0% -3.0 to 3.0% --- Idling regulator Engine speed (idling speed): Air conditioner off (A/C Low) Manual transmission Automatic transmission to 12.20% 700 to to Page Note: For display zone 3: Displayed is the amount that the idling speed stabilization has moved away from the prescribed average. For a new engine the values lie in the positive range, because of the higher friction and in the negative range with an engine that has run-in.

49 Página 49 de Significance of 5 digit number block Significance if display = Significance 1 Air conditioner compressor switched on 1 Driving range (gear) selected 1 Air conditioning system switched on 1 Rear window defroster on 1 Power assisted steering pressure switch on

50 Página 50 de Display group 56 (Speed regulation) Idling speed stabilization Engine running at idling speed Read Measuring Value Block 56 xxxx xxxx xx.x% xxxxx Indicated on display Idling regulator Engine speed (idling speed specification): Operating mode xxxxx Page Manual transmission Automatic transmission Engine speed (idling speed): Manual transmission Automatic transmission to 12.20% to to Page

51 Página 51 de Readiness code Display group 60 (Speed regulation) Adaptation EPC system 1) Ignition on, engine not running Control unit in mode 04 basic setting Read Measuring Value Block 60 xx% xx% x Text Indicated on display Adaptation condition (ADP runs, ADP OK or ADP ERROR) ADP OK --- Learning step counter 0 to Angle sensor -2- for throttle drive (power accelerator actuation) -G188- Angle sensor -1- for throttle drive (power accelerator actuation) -G to 3% to 93% --- 1) Adapting engine control module to throttle valve control module Page Note: For display zone 60: Matching the throttle valve control module is performed with ignition switched on. Engine control module is adapted to throttle valve control module when selecting display group 60 under function 04 "Basic setting". This adaptation must always be carried out when another throttle valve control module (or another complete engine) or another engine control module is installed. The counter counts up to 8 in display zone 3 during the adaptation.

52 Página 52 de Display group 61 (Speed regulation) Electronic Power Control (EPC) While driving Read Measuring Value Block 61 xxxx xx.xxx V xxx% xxxxx Indicated on display Operating condition xxxx Page Throttle drive (power accelerator actuation) -G186- Supply voltage for engine control module Engine speed (idling speed) Manual transmission Automatic transmission 0 to 100% to 15.0 V Page to to 6800 Page

53 Página 53 de Display group 62 (Speed regulation) Electronic Power Control (EPC) Ignition on, engine not running Read Measuring Value Block 62 xx% xx% xx% xx% Indicated on display Sender -2- for accelerator pedal position -G185-0 to 100% --- Throttle Position (TP) Sensor -G79-12 to 97% --- Angle sensor -2- for throttle drive (power accelerator actuation) -G188- Angle sensor -1- for throttle drive (power accelerator actuation) -G to 3% to 93% --- Note on display zone 4: The entire display range is given.

54 Página 54 de Vehicles with automatic transmissions Display group 63 (Speed regulation) Kick down adaptation Ignition on, engine not running Control unit in mode 04 basic setting Accelerator pedal fully depressed Read Measuring Value Block 63 xx% xx% Text Text Note: Indicated on display Operating mode (ERROR, actuate, ADP. runs, ADP. OK ADP. OK Kick-down switch Kick-down --- Sender -2- for accelerator pedal position - G185-0 to 100% --- Throttle position (TP) sensor -G to 25% --- The entire display range is given. Page

55 Página 55 de Vehicles with engine code AWP and cruise control system (CCS) Display group 66 -Cruise control system Engine running at idling speed Read Measuring Value Block 66 km/h xxxx km/h xxxx Indicated on display Switch position of CCS controls switch Specified road speed (last value stored by CCS) Brakes, clutch and CCS switches position Page Page Road speed (actual) 0 km/h ---

56 Página 56 de Significance of the numbers in the 8-digit display, display field 2, brake and cruise control switch Note: Only the last four digits of the 8-digit display are described in the following table Significance Brake depressed (brake light switch) Brake depressed (brake pedal switch) Constant 0 for vehicles with automatic transmission (clutch switch) Cruise control system operational Checking brake light and brake pedal switch Page Set cruise control system to operational with log-in code 11463; deactivate with log-in code Electrical system; Repair group 27 Significance of the numbers in the 8-digit display, display field 4, cruise control switch Note: Only the last four digits of the 8-digit display are described in the following table Significance CCS sliding switch at off (locked only; not locked = 1) CCS sliding switch at off (locked) SET button depressed CCS sliding switch at RES Checking control switches for cruise control system: Electrical system; Repair group 27

57 Página 57 de Vehicles with engine code AWW and cruise control system (CCS) Display group 66 -Cruise control system Engine running at idling speed Read measured value block 66 km/h xxxx km/h xxxx Indicated on display Switch position of CCS controls switch Specified road speed (last value stored by CCS) Brakes, clutch and CCS switches position 0000 Page Page Road speed (actual) 0 km/h ---

58 Página 58 de Significance of the figures in the 4 digit display, display zone 2, brakes, clutch and CCS switches position Significance Note: For 4 digit display: Brake depressed (brake light switch) Brake depressed (brake pedal switch) Clutch depressed or on automatic transmission brake depressed Cruise control system operational Checking clutch pedal switch -Engine code AWW: Page Page ; Engine code AWP: Checking brake light and brake pedal switch Page Set cruise control system to operational with log-in code 11463; deactivate with log-in code Significance of the figures in the 4 digit display, display zone 4, CCS control switches Significance Note: CCS sliding switch at off (switch locked only) CCS sliding switch at off (switch not locked or locked) SET button depressed CCS sliding switch at RES Checking control switches for cruise control system: Repair Manual, Electrical Equipment, Repair Group 27 Function of cruise control system:

59 Página 59 de 82 Vehicle Owner's Manual

60 Página 60 de Measuring value blocks, evaluating display groups 70 to 79 (emission reduction) Readiness code Display group 70 (emission reduction) Evaporative Emission (EVAP) system diagnostic (fuel tank venting system) Engine running at idling speed Coolant temperature at least 60 C Control module in mode 04-Basic settings Read Measuring Value Block 70 xxx% xx.x% Text Indicated on display Result of diagnostic (Test ON / OFF or TBV OK / n.ok) TBV OK --- EVAP purge flow rate 0 to 100% --- Oxygen sensor control deviation in TBV diagnostic -7.0 to 7.0% --- EVAP canister purge regulator valve duty cycle 0 to 100% ---

61 Página 61 de Note: TBV means fuel tank venting valve (EVAP canister purge regulator valve). The diagnostic can only be initiated once per engine start. For display zone 1: The entire display range is given. For display zone 3: The value is only indicated for diagnostic via air path. The entire display range is indicated.

62 Página 62 de Readiness code Display group 71 -Exhaust reduction- Leak diagnostic system Engine running at idling speed Coolant temperature at least 80 C Control module in mode 04-Basic settings Read Measuring Value Block 71 Text Text Text Text Note: Indicated on display Result of diagnostic (Test ON/ OFF, Syst. OK / n.ok) Diagnostic status (Syst.Test/End.Test) Syst. OK --- End of Test --- DTC message (small leak/large leak) Reed-contact condition (Reed closed/reed open) Reed open --- Coolant temperature should be below 80 C during the test, check Page

63 Página 63 de Readiness code Display group 77 (emission reduction) Secondary air system diagnostic Vehicle stationary, engine running at increased idling speed Coolant temperature at least 75 C Control module in mode 04-Basic settings Read Measuring Value Block 77 xxxx xx.x g/s x.x g/s Text Indicated on display Result of diagnostic (Test ON/ OFF, Syst. OK / n.ok) Syst. OK --- Secondary air system air mass -100 to 100% --- Air mass drawn in 5.0 to 12.0 g/s Engine speed (idling speed) Page Manual transmission Automatic transmission 700 to 820 rpm 640 to 760 rpm Page Note: For display zone 3: The entire display range is given.

64 Página 64 de Measured value blocks, evaluating display groups 86 to 89, 100 (Readiness code) Display group 89 -Trip odometer- Exhaust Malfunction Indicator Lamp (MIL) on Engine running at idling speed Read Measuring Value Block 100 xxxx km Text Indicated on display Engine code AWW: Requirement "Tank empty" (OK / too small) Distance traveled with exhaust Malfunction Indicator Lamp (MIL) on Engine code AWP: No display Note: Significance of exhaust Malfunction Indicator Lamp (MIL) Page 01-8

65 Página 65 de Display group 100 (Readiness code) Engine running at idling speed Read Measuring Value Block 100 xxxxxxxx xxx.x C xxxx s xxxxxxxx Indicated on display Display zones Diagnostic status Period since last engine start Specification Evaluation Coolant temperature 80 to 110 C Page Readiness code Page

66 Página 66 de Significance of 8 digit number block for readiness code The readiness code is generated only when all display zones show Diagnostic function 0 Catalyst 0 Catalyst heating (currently no diagnostic/always "0") 0 Evaporative Emission (EVAP) system (tank venting system) 0 Secondary air system 0 Air conditioner (currently no diagnostic/always "0") 0 Oxygen sensors 0 Oxygen sensor heating 0 Exhaust gas recirculation system (not fitted/always "0")

67 Página 67 de Measuring value blocks, evaluating display groups 90 to 97 (Performance increase) Display group 91 (Performance increase) Camshaft adjustment While driving Read Measuring Value Block 91 xxxx/min xxx% Text x.x KW Indicated on display Active camshaft adjustment angle Camshaft adjustment On / Off -3 to 25 CA Engine load 10 to 150% --- Engine speed (idling speed) Manual transmission Automatic transmission 700 to to 6800 Page

68 Página 68 de Note: For display zones 3 and 4: There are only two positions for the adjustable camshaft, the normal position and the switched position. To bring the camshaft into the switched position, accelerate the vehicle in 1st gear from rest. Display zone 4 shows the actual position of the adjustable camshaft. If the activation of the adjustable camshaft is active - see display zone 3- it can be seen in display zone 4 whether in fact an adjustment of the camshaft has occurred (feed-back information). Camshaft in normal position = -3.0 to +6.0 CA. Camshaft in switched position = 16.0 to 25.0 CA If during test drive display zone 4 displays a value between 6.0 CA and16.0 CA, the electric camshaft adjustment valve is correctly directing oil pressure to the mechanical camshaft adjuster, but it cannot attain its end position (e.g. for reasons of stiffness/tightness). Checking camshaft adjustment: Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 15; Servicing valve gear, checking camshaft adjustment

69 Página 69 de Display group 94 (Performance increase) Camshaft adjustment Vehicle stationary, engine running at increased idling speed Control module in mode 04-Basic settings Read Measuring Value Block 94 xxxx/min Text Text Indicated on display Result of diagnostic (Test OFF/Test ON/Syst.OK/Syst. nok) Camshaft adjustment Syst. OK --- CAM-ADJ.ON --- CAM-ADJ.ON CAM-ADJ.OFF Engine speed 1080 to 2600 rpm ---

70 Página 70 de Measuring value blocks, evaluating display groups 110 to 119 (Charge pressure control) Display group Charge pressure control - adaptation valves for boost pressure limitation Engine running at idling speed Read Measuring Value Block 111 x.x% x.x% x.x% x.x% Indicated on display range 4-15 to 160% --- range 3-15 to 160% --- range 2-15 to 160% --- range 1-15 to 160% ---

71 Página 71 de Display group Charge pressure control Engine running at idling speed Read Measuring Value Block 113 xxxx xxx.x% xxx.x% xxx mbar Indicated on display atmospheric pressure (air pressure) 500 to 1200 mbar Angle sensor -1- for throttle drive (power accelerator actuation) -G187-0 to 100% --- Engine load 10 to 150% --- Engine speed (idling speed) Page Manual transmission Automatic transmission 700 to to 6800 Page

72 Página 72 de Evaluating display group 113, display zone 4 - atmospheric pressure Elevation Air pressure 0 m 998 mbar 500 m 954 mbar 1000 m 902 mbar 1500 m 853 mbar 2000 m 805 mbar 2500 m 756 mbar 3000 m 704 mbar 3500 m 655 mbar 4000 m 607 mbar Note: The air pressure can fluctuate depending upon the atmospheric conditions.

73 Página 73 de Display group 114 (Charge pressure control) While driving Read Measuring Value Block 114 xxx.x% xxx.x% xxx.x% xxx.x% Indicated on display Wastegate bypass regulator valve duty cycle 0 to 100% --- Engine load 10 to 150% --- Specified engine load after correction (reduced via knock control, altitude adaptation and coolant temperature) Specified engine load (mapped value via accelerator pedal position) max. 150% --- max. 150% ---

74 Página 74 de Display group 115 (Charge pressure control) While driving Read Measuring Value Block 115 xxxx xxx.x% xxx mbar xxx mbar Indicated on display Actual charge value Engine code AWW Engine code AWP Specified charge pressure Engine code AWW Engine code AWP max mbar max mbar max mbar max mbar Engine load 10 to 150% --- Engine speed (idling speed) Manual transmission Automatic transmission 700 to to 6800

75 Página 75 de Display group Charge pressure control While driving Read Measuring Value Block 116 xxxx x.x% x.x% x.x% Indicated on display Intake air temperature correction factor 7 to -15% --- Fuel correction factor 0 to -27% --- Engine speed (idling speed) Manual transmission Automatic transmission 700 to to 6800

76 Página 76 de Display group Charge pressure control While driving Read Measuring Value Block 117 xxxx xxx.x% xxx.x% xxx mbar Indicated on display Specified charge pressure Engine code AWW Engine code AWP Angle sensor -1- for throttle drive (power accelerator actuation) -G mbar 2200 mbar to 100% --- Throttle position (TP) sensor -G79-0 to 100% --- Engine speed (idling speed) --- Manual transmission Automatic transmission 700 to to 6800

77 Página 77 de Display group Charge pressure control While driving Read Measuring Value Block 118 xxxx xxx.x C xxx.x% xxx mbar Indicated on display Actual charge value Engine code AWW Engine code AWP Wastegate bypass regulator valve duty cycle max mbar max mbar to 95% --- Intake air temperature max. 110 C --- Engine speed (idling speed) --- Manual transmission Automatic transmission 700 to to 6800

78 Página 78 de Display group 119 (Charge pressure control) While driving Read Measuring Value Block 119 xxxx x.x% x.x% xxx mbar Indicated on display Actual charge value Engine code AWW Engine code AWP Wastegate bypass regulator valve duty cycle max mbar max mbar to 100% --- Boost pressure limitation -15 to 160% --- Engine speed (idling speed) --- Manual transmission Automatic transmission 700 to to 6800

79 Página 79 de Measuring value blocks, evaluating display groups 120 to 129 (Communication) Display group 120 -Traction control -ASR- While driving Read Measuring Value Block 120 xxxx xxx Nm xxx Nm Text Indicated on display Status TC active / TC n.active Actual engine load 0 to 260 Nm --- Specified engine load 0 to 440 Nm --- Engine speed (idling speed) Manual transmission Automatic transmission 700 to to 6800

80 Página 80 de Display group 122 -Transmission (automatic only) While driving Read Measuring Value Block 122 xxxx xxx Nm xxx Nm Text Indicated on display Status Engine interv./no engine interv. Actual engine load 0 to 260 Nm --- Specified engine load 0 to 440 Nm --- Engine speed (idling speed) Manual transmission Automatic transmission 700 to to Page

81 Página 81 de Display group 125 -Communication -data bus messages- Engine running at idling speed Read Measuring Value Block 125 Text Text Text Text Note: Indicated on display For display zone 125: Transmission status Air conditioning A/C 1 Combi-instrument Combi ABS status ABS Specification = 1; Control modules with active data bus are displayed. Transmission 1 ---

82 Página 82 de Display group 126 -Communication -data bus messages- Engine running at idling speed Read measured value block 126 Text Indicated on display Airbag status Airbag Note on display group 126: Specification = 1; Control modules with active data bus are displayed.