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internal88
internal88, BMW Mechanic
Category: BMW
Satisfied Customers: 2556
Experience:  I have an Automotive Engineering Degree and also work for an Automotive engineering company since 2003.
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My BMW have a bad miss and the service engine light came on

Customer Question

Hi my BMW have a bad miss and the service engine light came on and it told me drive moderately and avoid heavy loads and also said engine malfunction so what could be the problem
Submitted: 1 year ago.
Category: BMW
Expert:  internal88 replied 1 year ago.

Hello, I'm Brandon - BMW tech.

The bad miss is most likely due to ignition coil misfire.

I would recommend first plug in an OBD2 scanner to see if is indeed cylinder misfire.

If yes, replace all the ignition coils and a set of spark plugs. I recommend using only BMW coil not aftermarket coil.

Let me know if you have further questions.

Please rate me positive for the prompt service, thank you!

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