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oil light dripping on ! oil level ok ??

Discussion in 'A4/S4 forum(B5 Chassis)' started by AUDI@WRC, May 5, 2008.

  1. AUDI@WRC
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    AUDI@WRC hows my driving call 0800-EAT-****

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    [May 5, 2008]
    for the last couple of months my oil light has been coming on about once a week for a few seconds dripping on the screen ? i check the oil level every time but it remains fine ? i have changed the oil but it still comes on now and again ? my car is a a4 1.8t sport
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  3. Siena
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    Siena Active Member

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    [May 5, 2008]
    Oil pressure warning is not an oil level indicator.

    It could be down to either of the following:

    1) Faulty oil pressure switch
    2) Dirty oil pick-up
    3) Worn / lazy oil pump

    Since it's irregular, I'd rule out the switch / switches being faulty.

    As for a dirty oil pick-up / sludge, I wouldn't even bother with flushing.

    The sump MUST be removed, to do a good job of cleaning the oil pick-up, and the sump. This is the first thing I'd do.

    If after re-assembly, and after fitting a new oil filter, and filling with fresh oil, the problem still persists, then I'd say you need a new oil pump.
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  4. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 5, 2008]
    TBH, one the sump is off to do the pick up, i would stick a pump in anyway due to the amount of work needed to get the sump off
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  5. AUDI@WRC
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    AUDI@WRC hows my driving call 0800-EAT-****

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    [May 5, 2008]
    what would you use to clean the sump and stainer ?
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  6. AUDI@WRC
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    AUDI@WRC hows my driving call 0800-EAT-****

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    [May 5, 2008]
    how much for a new oil pump ? also is there a strainer in there as well ? should i replace that as well ?
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  7. Siena
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    Siena Active Member

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    [May 5, 2008]
    I clean sumps and all associated parts with diesel, never had anny issues.
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  8. AUDI@WRC
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    AUDI@WRC hows my driving call 0800-EAT-****

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    [May 5, 2008]
    diesel ? do you just spray on and rub with a wire brush ?
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  9. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 5, 2008]
    I bought a pump and strainer for under £70, then the sump gasket was £20 iirc. For me it bought peace of mind
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  10. AUDI@WRC
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    AUDI@WRC hows my driving call 0800-EAT-****

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    [May 5, 2008]
    where from ? also whats a iirc ? sorry for being thick as sh*t !
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  11. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 5, 2008]
    I got mine from my local motorfactor, If I Remember Correctly IIRC
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