Mystery puff of smoke

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  • ColonialNomad
    S2Forum Addict
    • Feb 2015
    • 392
    • Home: United Kingdom Current: China

    #1

    Mystery puff of smoke

    So I was driving the RS2 back from picking up my step son this afternoon and while gently cruising down a residential back street at about 20mph, my view out the back was obscured with a very brief but significant cloud of blue smoke that quickly dissipated. I thought the turbo had gone.

    However, despite a few test accelerations to bring the turbo into play and nothing has reappeared. Also looked under the car and bonnet for oil leaks but no sign. Oil temp and pressure were fine, coolant pressure was fine too.

    Any suggestions on what the cause might have been?
  • Monkeymagic
    S2Forum Possessed
    • Mar 2012
    • 3419
    • Country: England

    #2
    Any fault codes stored?

    Comment

    • ColonialNomad
      S2Forum Addict
      • Feb 2015
      • 392
      • Home: United Kingdom Current: China

      #3
      I don't have diagnostics equipment. The car will be back up on a lift next week though.

      Comment

      • Ian Simmonds
        S2Forum Fiend
        • Jun 2005
        • 2858
        • Country: United Kingdom

        #4
        Search PCV or (Pressurised Crankcase Ventilation).... Ours have both done that and its been cleared by a thorough clean of the tubes and flame trap etc....
        85 WR Urquattro, 85 20vT International liveried RallyRep
        93 MTMS2 Avant

        Comment

        • Monkeymagic
          S2Forum Possessed
          • Mar 2012
          • 3419
          • Country: England

          #5
          Good shout. Sudden crankcase pressure will push oil up past rings and cause blue smoke.

          Comment

          • ColonialNomad
            S2Forum Addict
            • Feb 2015
            • 392
            • Home: United Kingdom Current: China

            #6
            Thanks guys, you've been very helpful

            Comment

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