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  1. #1
    Reverse Gear

    Join Date
    Feb 2010

    (help) Oil pressure warning problem

    I bought a 2005(55) A4 2.0tdi 140bhp s-line 6 months ago, it had full dealer service history and had done 97k miles. It has now done 102k and i had it serviced at 99k and the oil presure warning indication has come on, I took into the garage that done my service (which is a private audi/vw specialist) they done a pressure test which came back with a result of 4bar, tried a new switch and done a diagnostic which showed no fault.

    I then took it to a VW dealership which is Audi approved who also ran a diagnostic and renewed the pressure switch, that hasn`t changed anything either and they are not sure where to go next whith the fault finding.

    Does anyone have any idea what could be causing this or what to investigate next

    Please help

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  3. #2
    6th Gear

    Join Date
    Feb 2010
    The only thing I can think of, would be to get vag-com and log the oil pressure over trip which would set off the warning light. This would give the garrage a good idea on what the fault could be. Other than that the things I would check, is the wiring going to the pressure switch and the Crankcase breather hose.

  4. #3
    Wrath's Avatar
    5th Gear

    Join Date
    Apr 2009
    North East, UK
    And presumably you have a BLB engine so may be heading for the oil balance shaft problem. Does it make a rattly noise at all?

    Red Audi A4 B7 S-Line with Leather/Alcantara interior

    Current Mods: Painted Brake Calipers, Gear-driven oil shaft assembly, RS4 grille, Debadged, B8 MFSW, Cruise Control, RS4-style Fog Surrounds, Satin Black Cupra R Splitter, RS4 RARB, Clear Corner headlights, 2011 RNS-e, MTEC Drilled and Grooved Brake Discs.



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