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 | |||
| It is not possible to read out fault code with pulse counter | ||
| Icon for emissions-relevant faults that result in the actuation of the CHECK-ENGINE indicator lamp in USA vehicles. This is only actuated when the tests have been carried out and faults were detected | ||
| Ignition: ON | ||
| Check, regulate engine, see: DMAN Engine, Index B | ||
Fault memory | |||
Fault code | Fault text | Possible cause/note | Remedy |
No fault detected | Depending on the complaint case, perform a complete ME-SFI [ME] electrics check | ||
| Hot film MAF sensor (B2/5) | ||
| Pressure sensor (B28) | | |
| Intake air temperature sensor (in hot film MAF sensor B2/5) | ||
| Coolant temperature sensor (B11/4) | ||
| Actual value potentiometer in actuator | ||
| A Lambda sensor upstream of catalytic converter (G3/2) | ||
| A Lambda sensor upstream of catalytic converter (G3/2) aging correcting factor exceeded | ||
| Lambda sensor heater of lambda sensor upstream of catalytic converter (G3/2) | ||
| Lambda sensor downstream of catalytic converter (G3/1) | | |
| Lambda sensor heater of lambda sensor downstream of catalytic converter (G3/1) | | |
| A Self-adjustment of "partial load" mixture formation at limit value of ME-SFI [ME] control unit (N3/10) | Unmetered air, fuel pressure regulator injection valves, engine wear | |
| Injection valve (Y62y1) | ||
| Injection valve (Y62y2) | ||
| Injection valve (Y62y3) | ||
| Injection valve (Y62y4) | ||
| Injection valve (Y62y5) | ||
| Injection valve (Y62y6) | ||
| A Misfire | ||
Compression pressure | |||
| A Cylinder 1 misfire | ||
Compression pressure | |||
| A Cylinder 2 misfire | ||
Compression pressure | |||
| A Cylinder 3 misfire | ||
Compression pressure | |||
| A Cylinder 4 misfire | ||
Compression pressure | |||
| A Cylinder 5 misfire | ||
Compression pressure | |||
| A Cylinder 6 misfire | ||
Compression pressure | |||
| Front knock sensor | Connector line | |
Knock sensor | |||
| Rear knock sensor | Connector line | |
Knock sensor | |||
| Crankshaft position sensor (L5) | ||
| Camshaft Hall sensor (B6/1) | ||
| Angular deviation of camshaft to crankshaft | Check basic setting of camshaft | |
| Secondary air injection malfunction (function chain) | as of 07/97 and low-emission D3 | |
| Catalyst efficiency too low | Catalytic converter | |
| Purge system leaky (function chain) | ||
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 | |||
| Purging inoperative | ||
| Purge system slightly 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 | |||
| Purging switchover valve (Y58/1) | ||
| A Activated charcoal canister shutoff valve (function chain) | ||
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 | |||
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 97j | |||
104.943/991 as of 1.9.97 | |||
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