Hello all. When I first got my car, I drove off the lot and about 1 mile down the road The error message, Oil Sensor Defective showed up in the multifunction screen,. The dealership took 1 week to fix it. Does anyone know what causes this? Or is there a part Number? Has anyone ever had this problem before?

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Peter L. House
1998 Sport E430
Azure Blue
110,000k Miles

1987 Oldsmobile Cutlass Salon
V8 Bucket Seats
Factory Moon Roof

Very common on the 1998 models, this sensor has been modified several times. The latest number is 004-153-53-28 & has a list of $89.
ALSO lack of oil changes will cause havoc on this part!

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

I believe it is just a bad part , since it happened the first day I picked up the car. it only had about 20 miles on it. Do I need to drop the oil pan to get it out..? I change my oil on the average of 4k - 7k miles . I used Vavoline 10w30. I just switched over to Mobile1 5w30. this was happening before I switched over thought

__________________
Peter L. House
1998 Sport E430
Azure Blue
110,000k Miles

1987 Oldsmobile Cutlass Salon
V8 Bucket Seats
Factory Moon Roof

Yes, the lower pan must be removed to install this sensor!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator