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Another 2.0TDi 170 problem - Oil Pressure Warning Light....

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by Richardesty, Dec 4, 2012.

  1. Richardesty
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    Richardesty loves quattro

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    [Dec 4, 2012]
    I was about mile into my commute this morning and was woken up by a big red Oil Pressure Warning on my dash. Its on the 2.0 TDI 170 BRD engine...

    Pulled over, checked the handbook - to learn that I needed to check the oil, and if that didn't cure the issue. Do nothing, not even let the car idle :sadlike:

    Called my local independent VAG specialist, which was fortunately only a mile away, to be told it should be ok to limp round to theirs, which is was.

    Currently under diagnosis, although an initial VAGCOM check suggests no 'errors'.

    Apparently this is a common fault, which results in the need to either replace the oil pressure switch (£25) or a new oil pump (circa £2k inc labour).

    Separately had a chat with my Audi dealer, who quoted me '4 to 5 hours' of investigation - before they would offer a quote or diagnosis, but said if it was the oil pump (a big complex geared monstrosity) they'd also replace the turbo as a caution. (yeah, cause they would!)

    Just wondered if anyone else had experienced this - whilst I await further information?
    #1
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  3. jaygeezer871
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    jaygeezer871 Member

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    [Dec 4, 2012]
    Sorry cant offer any help but following with interest should this happen to me, what's your mileage & how old is the car?
    I know from your posts your no mug so let's hope the cheaper option cures it?
    jay
    #2
  4. mearnsA4
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    mearnsA4 New Member

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    [Dec 4, 2012]
    there is a long thread on the Sticky, 4th down the page, have a read of that for more info...
    #3
  5. jaygeezer871
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    jaygeezer871 Member

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    [Dec 4, 2012]
    Ouch, lost interest following that thread sometime ago thinking it was 140 engines, not the 170s.
    I need to check on the recall 13D7 for the 170 BRD engine myself.
    Good luck
    #4
  6. Richardesty
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    Richardesty loves quattro

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    [Dec 4, 2012]
    Yeah seen that - but the vast majority of issues on there relate to the BLB engine......mine's the BRD.

    Either way I'll keep you posted as the garage continue to investigate the issue.
    #5
  7. mearnsA4
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    mearnsA4 New Member

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    [Dec 4, 2012]
    hope it is just a pressure sensor. mine was a BRD and had oil pump and hex shaft replaced; engine and turbo survived though..!
    #6
  8. Wrath
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    Wrath Well-Known Member

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    [Dec 4, 2012]
    I think the oil pump is still run off a hex shaft so you might have had a hex failure in which case worst case scenario is the engine is pooched as well as the turbo. Hopefully it's just a sensor.
    #7
  9. Paul B7
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    Paul B7 Active Member

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    [Dec 4, 2012]
    The standard Audi response is that you need a replacement Turbo as well as the replacement oil pump/balance shaft module etc etc.
    THIS IS NOT ALWAYS TRUE AS THE TURBO IS NOT ALWAYS DAMAGED.
    Like Wrath I just hope its the sensor, good luck.


    Paul B7
    #8
  10. Richardesty
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    Richardesty loves quattro

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    [Dec 24, 2012]
    Well.....

    10 hours labour later, 'just' an oil pump (no turbo or balance shaft) and a £1676 bill from my local independant VAG specialist - she seems to be fighting fit again!

    I had a bit of a side swipe at Audi Uk about on Twitter and as a result was contacted by them. This allowed me to share my frustrations in relation to the series of known issues I've had (Injectors, Flywheel and Oil Pump) which have resulted in my car being off the road for 5 times in 3 years.....

    They went into the whole 'well if you'd have taken it to a main dealer' we might have been able to do something - to which I replied, if I'd have gone to the main dealer it would have cost me a whole lot more in the first place. Not helped by the fact they wanted £75 for a computer diagnostics and 4 hours labour to 'run some tests' before they'd even hint at what was wrong....

    The independant did a free VAGCOM check and oil pressure check (FOC) and instantly said - it'll be the common fault with the oil pump on all VAG 2.0TDi's.

    Anyway, to cut a long story short Audi have said they'll send me a £250 voucher to use at any Audi dealer - on either Merchandising, Servicing or indeed my next car (wishful thinking on their part!!!!).
    #9
  11. tuffy
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    tuffy Member

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    [Dec 24, 2012]
    Sorry to hear of your troubles. I thought the gear driven oil pumps on the BLD engine didn't give any trouble? Just balance shaft issues
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  12. Paul B7
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    Paul B7 Active Member

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    [Dec 24, 2012]
    Gear driven units mean the balance shaft is driven by a gear ( and by a tensioned chain in the BLB )
    The balance shaft in turn drives the oil pump via an hex shaft. The hex shaft round off and hence no drive to the oil pump.
    The Audi Driver article from November 2012 gives an explanation and which engine code suffers what.
    #11
  13. fossie
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    fossie Member

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    [Dec 25, 2012]
    I'm loving the fact that when the pump goes and the cars taken into a garage their reply is; "oh it's a common fault" however according to Audi it ain't.
    #12
  14. mm707
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    mm707 Member

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    [Dec 27, 2012]
    Was the same with the injector fiasco. Main dealers were saying it's quite rare but they knew it was happening to lots of cars. They were blatantly lying.
    #13
  15. Richardesty
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    Richardesty loves quattro

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    [Dec 31, 2012]
    The £250 voucher is as good an admittance of guilt as any I know of :)
    #14
  16. Gavlaa
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    Gavlaa New Member

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    [Apr 23, 2014]
    Just sticking my 2 pennies worth in here. I own a BRD engined 2.0 170ps TDI A4 and am suffering the oil pressure issue mentioned above.
    Despite this being quite a common issue I haven't seen allot of facts about symptoms and specifics though so before I throw my car at the garage ( I don't have the time nor tooling for this job) I thought I'd share a short fault diagnosis video as i plaid it by ear.
    At the end of my little look and tentative engine run I came to the conclusion that it is probably the oil pump at fault or a combination of oil sludging and the turbo making a horrible noise.
    Here is a4 fault diagnosis - YouTube
    I will put this on the sticky to but wanted it on this thread as it is BRD engine specific.
    I hope nobody gets narked by the bump on this old thread but it will no doubt help others looking for guidance on this issue.
    #15

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