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Old 25th April 2016, 14:23
jones jones is offline
Senior Member
Join Date: Apr 2014
Location: Midlands
Posts: 389
jones is on a distinguished road

So as I love these kind of puzzles I spoke to a die hard BMW lover and he quickly said its probably
  • Failed MAF
  • Faulty wheel Speed Sensor
  • your cat box - its breaks up into pieces and blocks the exhaust

To test the Cat, just remove it temporarily start the engine (noisy) but if it clears after revving it for a moment you have found your fault.

Good luck!
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