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      11-13-2011, 06:42 PM   #1
PGabriel
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Drives: M3 E90
Join Date: Oct 2011
Location: Brazil

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Strange noise when downshifting

I´ve had my new E90 DCT for about two weeks and today when downshifting from 3rd to 2nd in S4, as the RPM went up to about 4,000 there was a noise like a single crack/blast coming from beneath the car.

Could this be due to fuel bad quality? I always fill her up with one of the best kind of gasoline existing here, as recommended by the owner´s manual.

Note: still in break-in period and driving according to the book.
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