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internal88, BMW Mechanic
Category: BMW
Satisfied Customers: 2561
Experience:  I have an Automotive Engineering Degree and also work for an Automotive engineering company since 2003.
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I have a 2008 X5 3.0 and when it is in drive and idling, the

Customer Question

I have a 2008 X5 3.0 and when it is in drive and idling, the engine sputters. The RPMs will fluctuate a little and the car will shake momentarily.
JA: How many miles are on the car? What size is the engine?
Customer: 80,000 miles. 3.0 V6
JA: Are you fixing your X5 yourself? What have you tried so far?
Customer: I just got it serviced by the dealership. Oil change and 27 point inspection. This just started a few days ago.
JA: Anything else you want the mechanic to know before I connect you?
Customer: There is also a leaky gasket that they recommended I replace.
Submitted: 6 months ago.
Category: BMW
Expert:  internal88 replied 6 months ago.

Hello, I'm Brandon - BMW tech.

Is the check engine light ON?

Customer: replied 6 months ago.
Expert:  internal88 replied 6 months ago.

There are few things it could cause this issue.

The engine air filter is dirty that need to be replaced.

The spark plug has a slight miss that can also cause the rough idle.

I would recommend replacing the air filter first.

Expert:  internal88 replied 6 months ago.

The mass air sensor could get affected by a dirty air filter. I would also suggest adding a bottle of techron fuel injector cleaner in the fuel tank. These items should help reduce the rough idle.

Please rate me positive, thank you.