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  1. #1
    Reverse Gear

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    How to change a cam sensor?

    I have a 1998 a4 1.8t avant, and after taking it to audi for a diagnostic and service they said that there are 2 faults which are:-


    THE CAM SENSOR: Is this just a straight unbolt and bolt on job or is it more complicated than that?

    THE WASTEGATE VALVE: Think this is out of my league.

    Any comments and advice will be greatly appreciated thanks.

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  3. #2
    Arrkon's Avatar
    Midlands regional Moderator

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    The 1.8t cam sensor is two 10mm bolts and a plug. thats it.... 10min job

    It depends what they refer to as the wastegate valve, if its:
    • the N75 (electrical solenoid), fiddly but can be done quite easily
    • the Wastegate actuator, turbo has to come off to change it.
    • the wastegate flap (usually rattles), again, whichever route its turbo off. Either replace turbo, or as i did, find a good condition exhaust housing and swap it.
    Currently rolling in a SKODA!!!

  4. #3
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    The code was N75.
    I'm not too bad with amatuer mechanics but i would'nt say im a professional at all.
    Do you think its possible to fix at home or is it best to take it to a garage,
    A home fix would be better as the garages are very expensive and also its a learning curve.
    Thanks for your help.

  5. #4
    "Stick a V8 in it!"

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    N75 is an easy DIY fix. Could be a broken wire though, rather than a faulty valve.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


 

 

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