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      01-20-2013, 03:30 PM   #7

Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi

iTrader: (2)

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2008 BMW 135i  [2.83]
Originally Posted by bbbbmw View Post
When I start mine (135), it revs quite high (warm or cold), and then settles back to about 600. But when it's warm and I come to a stoplight, the idle will often jump up to 900 or so, and then settle back, or jump once again. The exhaust tips are a little greasy as well - all making me think the computer is off, making the car run rich and uneven. I took it to the dealer a couple of weeks ago, but they said it was normal. Does anyone (or everyone?) have this issue?
That all sounds normal. If your car is hot when you come to a stop light, its not uncommon for the rpms to rise to feed the alternator when the fans kick on.