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limp mode please help

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by dave500, Sep 11, 2012.

  1. dave500
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    dave500 New Member

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    [Sep 11, 2012]
    hi folks, new to this forum so please forgive me if i am going over old ground.
    my wife was driving her 2.0tdi 06 plate on sunday when the glow plug light started to flash, she pulled over and rang me ( over 100 miles away ) i told her to carry on home and would look at it in the morning. She rang back to say the car was very sluggish and would not rev over 3000rpm. Any way she got home safe and sound.
    In the morning i stared the car, no glow plug light but still wont rev over 3000, took it to a local independant and he said the turbo was knackered as it was hardly turning. Is this stuck vains and can be cleaned or do i need to give him £1150.00 of my hard earned.
    Any help would be great. Dave
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  3. simon.m
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    simon.m Active Member

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    [Sep 11, 2012]
    id not be giving £1150 to any one for a turbo **** thats a lot try these guys if you do need a new one priced mine at £335+vat but id looking to cleaning it first

    Prestige Engine Products Limited
    UNIT 7, Hanbury Wharf
    Hanbury Road
    Droitwich
    Worcs.
    WR9 7DU
    01905 792211 'phone
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  4. dave500
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    dave500 New Member

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    [Sep 11, 2012]
    Thanks Simon I will ring them in the morning, any idea if sticking vains will stop it from reving ?
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  5. pauldazzle
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    pauldazzle Active Member

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    [Sep 12, 2012]
    Get it scanned for fault codes before you throw any money at it. A dodgy MAF sensor will put the glow plug light on & kill the performance.
    #4
  6. jjmurphy21187
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    jjmurphy21187 Tiptronic

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    [Sep 12, 2012]
    Does the DPF cause the glow-plug light to flash or does it have it's own warning light?
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  7. dave500
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    dave500 New Member

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    [Sep 12, 2012]
    sorry jj not sure what you mean by DPF. The light is not on at the moment but it still wont rev. someone said if you disconnect the battery it will reset the ecu, is this right?
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  8. pauldazzle
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    pauldazzle Active Member

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    [Sep 12, 2012]
    DPF = Deisel Particulate Filter.
    Failed MAF will do what you describe, but get the car scanned as it's guess work until you do that.
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  9. Brodster
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    Brodster Shark Performance In Scotland Regional Rep VCDS Map User

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    [Sep 12, 2012]
    You havent said if its a 140 or 170 TDI because if its a PD140 then they dont have a DPF as your car is a 06 plate. I believe the DPF's were introduced when the CR versions came out........can someone clarify this please. As said before get a scan done of the car and then take it from there.
    Last edited: Sep 12, 2012
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  10. Cribbon
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    Cribbon Member

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    [Sep 12, 2012]
    unplug the maf sensor and see if it will rev over 3000rpm, this would give u an idea if it is maf sensor!
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  11. astradti16v
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    astradti16v Member

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    [Sep 12, 2012]
    Are you sure it hasnt got into limp mode due to the DPF being close to full? I would get it plugged into a diagnostic machine to check that first before spending hundreds/ thousands!
    #10
  12. pauldazzle
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    pauldazzle Active Member

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    [Sep 12, 2012]
    Works on petrol VAG cars, & some deisels, but to my knowledge will put Audi TDI's in to limp. Does on mine for sure.
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