E60 Discussion Anything and everything to do with the E60 5 Series. All are welcome!

07 550i rough idle at startup

Old Feb 17, 2009 | 10:29 AM
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From: Houston, TX
My Ride: My Bimmer's info is in my sig, so I'll tell you about my garage toy. It's a 1997 Porsche Boxster. The car is black on black and I have replaced every single thing on the car (interior, exterior, drivetrain, suspension) except for the sheet metal and the convertible top (both of which will be next I guess). I love my Pcar more than any other car I have ever owned and will probably keep it for the rest of my life. Porsche. There is no substitute.
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I have run 3 tankfuls of premium through the car now. The first two tanks had a bottle of Techron added to them. The third had Chevron's fuel injector cleaner additive in it.

However, every time I start the motor in the morning, I get a very rough idle until it warms up. Then, it seems to gurgle a bit or hunt for idle just a little (the wife doesn't notice it when the car is warm, but I do).

Will my factory warranty cover this at the dealership? Is there anything else I should try before I bring it in next month for other stuff I've found with the car?

Any guidance would be helpful.
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