Question about 2002 Audi A4
Ok guys here we go again.i put a new oil pressure light switch in my car one week ago because my oil light would come on once in a while.checked oil pressure which was good.anyways the light didnt come on after i put the new pressure switch in.yesterday im driving,and the oil light came on again and now back to square one.it comes on once in a while.now let me add i got the part from napa.could that have anything to do with it .i wouldnt think the same part went bad after a week?
any feedback or help would be greaty appreciated
There are potentially two different problems here.
1. A fault with the actual oil pressure.
2. An electrical fault with the switching circuit.
If you are confident the problem is not with the oil pressure, disconnect the wiring from the switch for a period of time. If the light still comes on periodically the fault must be with the wiring circuit shorting to earth. There will be no fire hazard to this approach as the voltage will drop over dash lamp.
However if the problem is with the oil supply system, the danger with this approach is you are potentially unaware of a serious problem
Such as the oil filter collapsed or the oil pressure release spring could be jammed open/closed which would cause the engine to not have the correct operating pressure.
Posted on Feb 24, 2009
How difficult is it to install a new oil sensor on a 2002 Audi A4 Quattro?
Posted on Feb 05, 2010
Hi I have 2001 a4 1.8t the problem is not the oil sensor its the screen on the oil pump in the oil pan you have sludge clogging the screen It has to be removed and cleaned can be done for approx 400-500 dollars by someone who knows Audi's.. the oil pressure is reduced at higher RPM 's the turbo has oil in it when the engine is at full temp from driving you stop the car after driving and shut it off the turbo bakes the oil in side the turbo it turns to sludge it needs time to cool down to normal temp before you turn off the engine you must use synth oil and must change every 4-5000 miles I saved my engine from seizing If you drive very long with the red oil light on you will seize the cam bearings and bend all the values good luck there is hope! Tim V.
Posted on Jan 24, 2010
(CHECK) INCORRECT OIL GRADE, HIGH ENGINE OPERATING TEMPERATURE
Posted on Feb 23, 2009
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