Question about 2002 Audi A4

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2002 audi a4 oil pressure light issue

Hi guys.i have a 200 a4 1.8t. my oil light has been going on and off for over a week now.its not on all the my mechanic put a new ol pressure switch and i drove the car for about 15 miles and it hasnt gone on yet. i know these engines are known for having an oil sludge problem. he did an oil pressure test and got the following results:
25 psi at idle with car warm
50 psi with car @ about 2000 rpm's ,but after seconds it dropped to around 40-45 psi.let go of the throttle and back down to 25 psi. what would you guys say?are those #'s good? any feedback would be appreciated.
thank you

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  • Anonymous Feb 14, 2009


    I have the 4 cylinder 1.8 t engine on the vehicle.

    thank you

  • Roberta Smith
    Roberta Smith May 11, 2010

    14.5 lbs up to 72.5 is normal (all i could find is the specs 97 1.8 L)

  • Roberta Smith
    Roberta Smith May 11, 2010

    what size motor is that ? sounds abit low actually



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I have an Audi A4 1.8 1999 model and had the oil pump replaced but am still getting an oil alarm when driving.Engine makes a terrible noise , any suggestions would be appreciated

Posted on Sep 04, 2009


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Posted on Feb 14, 2009

  • Marvin
    Marvin Feb 14, 2009

    those numbers are not low, the light is triggered at 10 PSI



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However if the problem is with the oil supply system, the danger with this approach is you are potentially unaware of a serious problem

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