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 | |||
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