Oil light on my 190E is on and sometimes off

SOURCE: Undervoltage consumer defective

Regarding the first problem, there is possibly an oil level sensor issue or vehicle version coding issue(both can be more fully checked at a dealership). The second problem is not uncommon. Obviously, there could be a low voltage if the vehicle sits for a long time or is not driven alot. Sounds like the ac system lost synchronization due to lack of voltage. With vehicle running, you should be able to press and hold recirc/rest or recirc/defrost buttons on ac control panel(can't quite remember which combination). Press and hold until leds start flashing, then the ac system will go through a resynch phase. If it completes this and the led's stop flashing, then it's ok. If it does not and the led's flash very quickly, this indicates an actual malfunction of ac system adjustment motors.

John Weathers

• 409 Answers
• Posted on Jan 01, 2009

SOURCE: dashboard lights blinks and sometimes not visible.

There is a dashlight rheostat switch in the instrument cluster. You should see 2 buttons in the cluster. The one that resets the trip meter is also the knob you turn for dash light brightness. Turn it back and forth a few time to clean any corrosion that may be on the rheostat. I had an old German once tell me to just stake ze knob und go dis vay und dat vay (left and right) und dis vay und dat vay until dey vork right. Try that. If you still have a problem the rheostat will have to be replaced.

SOURCE: Numerous error codes, brake, abs, srs, and lighting problem

i got to admitt thats alot of things to go wrong at once. i am no expert here, but there is a chance you got a loose or broken ground somewhere. chk. battery cables make sure there clean and tight, and any other ground straps you can find. with todays computered cars and trucks grounds are a big thing and just one not making contact can make the whole system go haywire. GOOD LUCK.

Testimonial: "Thanks for the advice. I did have a couple of things wrong but most were fixed with the battery solution. The MFG had a recall on the ABS system"

Paul W

• 404 Answers
• Posted on Feb 09, 2009

SOURCE: Resetting Oil Service indicator lights on 1995 e300d mercedes

Hi Mike,
I'm in the U.K. and your Quarts are of a different measure to ours, I would say that is about the right amount, however careful topping up on level ground and monitoring the dip stick should get you there? anyhow where you bought the oil will have capacity details.
As for oil service light have you tried holding down the trip reset button whilst turning on ignition? Keep it pressed for about 10/15 seconds.
Good Luck!
Press the Blue button please if helped by my FREE Effort, Thank You!
Paul 'W' U.K.

SOURCE: Mercedes 190E difficult to start and sometimes won't

hi,best thing to do,install a pressure gauge,you can see the pressure of fuel while starting your engine,maybe one of this is defect, fuel filter,fuel pump motor and fuel accumulator,also check your rubber seal on injector,you can check your spray pattern of injector before replacing,ty