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Polo classic overheating

Discussion in 'VW Mk4 Jetta, Golf, New Beetle, Passat TDI forum' started by Rene, Mar 6, 2012.

  1. Rene

    Rene New Member

    Joined:
    Mar 6, 2012
    Messages:
    1
    Car:
    Polo classic 1.9 tdi/2001
    Hello everyone...

    I have a 2001 polo classic 1.9 tdi 90 hp. Whenever driving past 90 km/h it starts to overheat. When i drive under, there is no problems, even driving for a good amount of time. I've changed the thermostat, flushed the radiator. The coolant is clear. It needs an oil change, but that would not cause it, would it?
    Only fault code was 17978.

    Hope to get some help here...
    Thank you very much...
    René
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  2. Seatman

    Seatman Active Member

    Joined:
    Jul 9, 2010
    Messages:
    5,135
    Car:
    2000 Mk4 Golf Estate 1.9tdi 174 bhp
    Location:
    Scotland
    Mods:
    PP764's, turbo and mapping

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