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Start/Stop system fault

D-Lat Nov 9, 2017

  1. D-Lat

    D-Lat New Member Team Daytona TFSI Owners Group Audi A4 Audi Avant Owner Group Black Edition S-line owners group

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    Anyone else seen this?

    [​IMG]


    Sent from my iPhone using Tapatalk
     
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  3. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Nope, I guess following the instructions is in order?
     
  4. Happy Grumpz

    Happy Grumpz Well-Known Member Team Glacier Silver Supporter saloon TDi Audi A4 quattro S-line owners group S tronic

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    Maybe a stupid question, does it do the same in the other drive modes?
     
  5. Concerned Cat

    Concerned Cat Age & treachery will always overcome youth & skill Team Ibis Audi Avant Owner Group

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    I'd be delighted if it wasn't working. It's the first VCDS mod I'll be making next week when it arrives!
     
  6. steve.r.p

    steve.r.p New Member

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    Referring to the stop/start system failure , I've had this error occur several times since buying the car from new (September 2017)

    It's been in the workshop twice . Both times all they have done is clear the errors (p060600) relating to the pcm.

    Apparently Audi know of the problem , (apparently there working on the fix) and I've got to wait for them to contact me . Or Maybe it's a polite way off saying "live with it"
     
  7. D-Lat

    D-Lat New Member Team Daytona TFSI Owners Group Audi A4 Audi Avant Owner Group Black Edition S-line owners group

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    I’ve only had it happen to me the once but not again since.

    Also had the car since September 2017.


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  8. RB84

    RB84 Member

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    Guys, did you ever get this sorted? My S4 has just started doing it. Was new in October 2017, so coming on a year old and 10k miles. Not had any issues until this. Fan running even when driven normally and the Start/ Stop function malfunction warning flashing up like above.
    Have asked to get it booked in ASAP
     
  9. A4 SJC

    A4 SJC Active Member

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    Mine did this a few weeks back.
    Turned off and on and has never been seen since
     
  10. RB84

    RB84 Member

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    My car is into Audi today, being looked at now. Tbh it isn't running well - quite a rough idle, fan on full as soon as you start the car up, temp at 100c, when I think it usually hits 90c, emissions warning light on amber and the auto stop/start malfunction being notified on the screen. Will see what's up with it!
     
  11. RB84

    RB84 Member

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    An update on my specific experience: diagnosed as faulty thermostat and they also replaced thermostat seals and crankcase seals. Now running well again. Audi Camberley got me into an A7 55 TFSI for 1.5 days, and an A5 2.0TDI S-Line for 1.5 days whilst mine was being sorted out. They also topped up the engine oil alongside the other work. All in all a frustration but they dealt with it well
     
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  13. ub7rm

    ub7rm Active Member

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    Interesting, mine has started to display same symptoms today a well. Going to call Audi assist.
     
  14. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Crankcase seals replaced sounds onimous, surely that would have necessitated draining the sump of oil?
     
  15. ub7rm

    ub7rm Active Member

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    So this morning did a 10 mile drive and after a few miles the warning above came on about stop start function being unavailable. Thought that was odd but not too ominous, when I got to my destination I realised the fans were running full pelt and the temperature gauge was lit up one notch above the 90 mark. I have never see it above 90 even on a hot summers day after a hard run so alarm bells started ringing. The oil temperature was OK though at 70 deg approx. Made the journey home and called audi assist (AA) who were there in half an hour.

    By this time the engine had cooled and the stop start system was normal. Two fault codes, 11786 and 8113 - but no explanation available for what they meant. Couldn't replicate the temperature rise or stop start system fault even after a test drive and leaving the car running for 20 mins.

    Car ran perfectly throughout apart from the fans running.

    He left the codes stored, but since no warning lights or error messages were displayed and nothing physically amiss there was nothing else he could do apart from say to take it to the dealer on Monday.

    The chap did explain that if any of the normal parameters are out of bounds then the first thing the car does is switch off the stop start system and switch the fans on.

    @RB84 did the fault start out intermittent and escalate?
     
  16. ub7rm

    ub7rm Active Member

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    Further update, went out on another run, temp climbed one notch above 90, orange engine management light came on this time. Noticed that even on max the air coming out of the heater was not that hot. Got home and the fans were running fast but the whole engine bay felt cold. Indicated oil temperature was about 60. The expansion tank for the coolant felt tepid at best. The only indication of any form of 'overheating' is the temp gauge.
     
  17. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I would suggest you stop driving it and call out Audi Assist and tell them you cannot continue to drive the car and risk further damage...
     
  18. ub7rm

    ub7rm Active Member

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    Yes the car is now 'grounded' until I can get it into the dealers. We're on holiday from early Monday morning so this is a pain in the **** to put it mildly. All the evidence suggests an open thermostat since there is heat reaching the cabin but not as much as usual - except the slightly elevated water temperature shown on the gauge. Oil temperature was struggling to get above 60 and often fell below that.
     
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  19. RB84

    RB84 Member

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    This is the exact issue I had. One notch above normal i.e. 100, fan on full blast as soon as you start, auto start/ stop fault flags up and the amber emissions light on. Mine came from nowhere to being on all the time - no intermittence, but it did happen on a 90min, 80 mile drive, so the fault may have been more intermitent if it had been more smaller distance drives in that time.
    I'd suggest it's the exact same issue and they did reference a TPI on my Audi paperwork. This is their exact wording;

    Carried out investigation into EML light on. Ran guided fault finder and found multiple faults stored with cooling system. Found relevant TPI instructing to replace thermostat. Replaced seals and thermostat, re assembled charged cooling system and bled. Tested ok.

    I hope that's of some use. Sorry for being slow back onto the forum - didn't get any email reminders of posts which I was expecting.
     
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  20. ub7rm

    ub7rm Active Member

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    Thank you, I agree it seems likely it's the same issue .Will update when it's been diagnosed and fixed .
     
  21. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Is there a TPI number, is this the same as a TSB?
     

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