Danger | Risk of death. Death may occur if body parts are drawn into rotating vehicle parts. | Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Secure area of rotating vehicle components against unauthorized access. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
Connecting hand-held tester (HHT), reading fault memory | |||
Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge | |||
| Reading out the fault code with the pulse counter is not possible | ||
| Characters for emissions-relevant faults which lead to the actuation of the CHECK-ENGINE indicator lamp in USA vehicles. This is only actuated when the tests have been carried out and faults have been detected | ||
| Ignition: ON | ||
| Check, regulate engine, see: Engine DMAN, Reg. B | ||
Fault memory | |||
Fault code | Fault text | Possible cause/note | Remedy |
No fault detected | Depending on complaint, perform complete ME-SFI electrics test | ||
| A tank pressure sensor (B4/3) electrical fault | 104.941/944/994 as of 1.8.96 | |
104.995 | Activated charcoal canister clogged | ||
with CODE (807) model year 1997 | |||
with CODE (808) model year 1998 | |||
As of model year 97 | |||
104.943/991 as of 1.9.97 | |||
104.941/943/991 up to 31.8.97 with CODE (494a) USA version | |||
| Purge system highly leaky | 104.941/944/994 as of 1.8.96 | |
104.995 | |||
with CODE (807) model year 1997 | |||
with CODE (808) model year 1998 | |||
As of model year 97 | |||
104.943/991 as of 1.9.97 | |||
104.941/944/994 as of 1.8.96 | |||
104.995 | |||
with CODE (807) model year 1997 | |||
with CODE (808) model year 1998 | |||
As of model year 97 | |||
104.943/991 as of 1.9.97 | |||
| Fuel level sensor | Read out IC | |
| A front left speed signal | ||
| Idle speed control | ||
| Power supply at ME-SFI [ME] control unit (N3/10) | ||
| Cruise control switch (S40) | ||
| CAN of ESP | ||
| A ME-SFI [ME] control unit (N3/10) | N3/10 | |
| ME-SFI [ME] control unit (N3/10) | N3/10 | |
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Read out automatic transmission control unit fault memory | ||
| Resonance intake manifold switchover valve (Y22/6) | ||
| Angular deviation of camshaft relative to crankshaft | Check basic setting for camshafts | |
| CAN of EIS | ||
| Oil level check switch (S43) | ||
| Starter relay in fuse and relay module (K40/4) | 104.941 as of 1.8.96 with transmissions 722.4/6 | |
| Safety fuel shutoff detected | ||
Throttle valve actuator sluggish/jammed | |||
Check intake tract for residues | |||
| Resonance intake manifold switchover valve (Y22/6) | ||
| Knock control of ME-SFI [ME] control unit (N3/10) at control stop | Increased tendency to knock due to poor fuel, coked combustion chambers or mechanical damage | |
ME-SFI [ME] control unit (N3/10) | |||
| Air pump switchover valve (Y32) | as of 07/97 and low-emission D3 | |
| Air pump relay (K17)/relay module (K40)/fuse and relay module (K40/4) | as of 07/97 and low-emission D3 | |
| Refrigerant pressure in air conditioning too high | Check air conditioning system | |
| Camshaft timing (function chain) | ||
| Camshaft timing adjustment solenoid (Y49) | ||
| Pedal value sensor (B37) | ||
| A start attempt performed with locked FBS | Incorrect operation | |
Check FBS, Body DMAN | |||
Check control units and part numbers | |||
| Actuator (M16/6) | ||
| Stop lamp switch | ||
| CAN of EIS | ||
| Rough road detection signal (through comparison of wheel speeds) | ||
| ME-SFI [ME] control unit incorrectly coded (coded for MG, vehicle has AT) | Check/correct variant coding | |
| ME-SFI [ME] control unit incorrectly coded (coded for AT, vehicle has MG) or no CAN communication from the automatic transmission control unit (N15/3) | Check/correct variant coding | |
| Transmission variant cannot be checked due to undervoltage at the automatic transmission control unit (N15/3) | ||
| A CAN fault: Transmission protection malfunction from automatic transmission control unit (N15/3) | ||
Check IC, Communication DMAN Reg. 1 | |||
Referenced documents
- ad0000p200003a Connecting Hand-Held Tester (HHT), reading out fault memory
- ad0761p2000c Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge
- ad0761p2000c
- as0000z000401a Risk of death. Death may occur if body parts are drawn into rotating vehicle parts.
- as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)
- as4700z000101a Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.