300E 4MATIC (124230) L6-30L (103985) (1990) Oxygen Sensor Technical Service Bulletin
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.