e92 335i n54 missfires

[t0by_o7]

I own a 2008 E92 335i n54, sometimes in the morning when I startup the car it sounds like it misfires, then I switch off the engine and start it again it's gone.
What could the problem be.

Car is completely standard with 138 000km's

 

[Twinz]

Can you post a video? Maybe that can help us to pinpoint the issue.

Anyway, welcome to a great car but prepare for some headaches in the first few months of ownership as you get to know the car...and plenty stuff you will have to fix which the previous owner or dealer did not pay attention to.

 

[rsgordini]

Coils or injector easy fix..

 

[Ntando]

1. Check plugs
2. Check ignition coils
3. Check injectors


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[t0by_o7]

Will upload a video tomorrow. Thanks

 

[bybyM3]

1. Check plugs
2. Check ignition coils
3. Check injectors


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How did you check the injectors if I may ask.

From the symptoms described above sounds like a leaky injector as the car sits overnight and it drips onto the piston

 

[cherubwings]

I own a 2008 E92 335i n54, sometimes in the morning when I startup the car it sounds like it misfires, then I switch off the engine and start it again it's gone.
What could the problem be.

Car is completely standard with 138 000km's

Im no expert but owns a 2006 330i and the problem you describe i know. Some time from now you will probably loose power as the coils may fail. I paid R5000 for the fix at BMW at the time lol.
Again it maybe something different. BTW you should perhaps take out a mechanical breakdown insurance and claim from them as its covered.

You can pm me and i will give you a good one.

The fix is quick as i waited right there for and hour and half.
Enjoy