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  1. downhilldave77

    downhilldave77 Member

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    hope you all dont mind me putting this in the s3 section had no joy in the rs6 section ignore the first few words lol

    hi all jumped over from the s3 section hope you dont mind. A good mate of mine has a 2003 rs6 75000miles fsh ever since he has owned it about 3 months it has had a slight misfire at higher revs it was serviced 1000 miles ago and scanned with no fault codes.he took it to the guy who looks after the car[ ex audi tech] he suspected the injector nozzle on number one cylinder was at fault he changed this and still the same. he removed the spark plug and it was very sooty and black all the other plugs are the perfect colour he also carried out a compression test all cylinders where 190 psi apart from no 1 which is 170 he now suspects it could be a cracked or broken piston ring. Do any of you guys think this could be the case has anyone got any other suggestions about what else could be causing this it sound like it could be expensive to fix any help appreciated thanks
     
  2. badger5

    badger5 www.badger5.co.uk Site Sponsor

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    RS6=expensive everything

    black plugs from soot or oily?
    leakdown test would be the next step for me
     
  3. downhilldave77

    downhilldave77 Member

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    it came out oily do you think it could be a cracked ring :sadlike:
     
  4. TwistedMind

    TwistedMind Long Live The A6

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    sounds like you might need a bank loan. Hope its not bad
     
  5. downhilldave77

    downhilldave77 Member

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    yeah its my mates car he is loaded anyway i think he will just get it done i guess it will be even more of a beast then lol
     

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