mercedesbenz Workshop Repair Guides

Mercedes Benz 300E 4MATIC Workshop Service and Auto Repair Manuals

MIL ON ON/OFF Ratio Unadjustable After Repair Work|Page 4012 > < MIL ON ON/OFF Ratio Unadjustable After Repair Work|Page 4010
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Oxygen Sensor: Technical Service Bulletins
Engine Cuts-Out, Cannot Be Restarted

07.3-88041

Engine Cuts-Out, Cannot be Restarted

All Vehicles with

4/88

Gasoline Engine

Cause:
Electrical wire of 02-Sensor comes at times into contact with drive shaft causing a short in the printed circuit board of the fuel pump relay.

Remedy
Replace 02-Sensor. Make sure electrical wire is properly routed.

Replace fuel pump relay.

MIL ON ON/OFF Ratio Unadjustable After Repair Work|Page 4012 > < MIL ON ON/OFF Ratio Unadjustable After Repair Work|Page 4010