My sister asked me to take a look at her x3. Apparently, it it is taking a couple of attempts to start and then is idling rough. What do I need to look at? I'm going to at least try to clean the MAF, anything else?
could have been a bad tank of gas. what kind and octane?
also, there are reports of this happening, and then letting the car rest and then starting again and it's just fine. I had issues with my 06 no starting right. there was an update for the 07s that did something similar, it may need a software upgrade.
Agree, probably bad gas. Take it to a dealer if it is under warranty to be sure if you feel it is something else. I have used Techron with good effect in other cars over the years and it might be useful here.
I have a similar issue. It is the worst after letting the car sit for about 1 hr. I took it to a dealer and they told me it was the mass air flow meter, I changed it, but the problem is still there. I am taking it to another dealer next week. Lets see what they find.
I've had this same thing ... it's not bad, but it's noticeable. Happens first start of the day when the car has been sitting out overnight. It's about 50 at night here at the moment. Worse if it's been raining and sitting for a day or two. 2006 X3 with 18000 miles.
Take it to the dealer? I'm pretty sure they won't be able to replicate it ... or is all the performance info coded into the infamous telepathic key?
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