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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 335is vibration



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      01-07-2016, 03:23 AM   #1
Manveer
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335is vibration

So today while I was merging onto the freeway, I punched it a little and the RPM's were around 5 and all of a sudden my car started to shake and the Service Engine Light came on...It kept driving fine, but every time I would accelerate it would make a funny noise, shake and the rpms would struggle to climb...I took an exit and parked my car...I turned it off and restarted it and the service light went away, it drove fine until I punched it again and the same thing happened...

Any idea what could be wrong?

Boost leak?

Misfire?
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      01-07-2016, 04:36 AM   #2
Dann
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Get the codes read.

That should lead to the problem
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      01-07-2016, 05:04 AM   #3
n54SQUAD
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This happend to me coil packs ! Spark plugs ! But codes would tell you first hand . But I put a pretty penny on it .
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      01-07-2016, 01:21 PM   #4
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Quote:
Originally Posted by Manveer
So today while I was merging onto the freeway, I punched it a little and the RPM's were around 5 and all of a sudden my car started to shake and the Service Engine Light came on...It kept driving fine, but every time I would accelerate it would make a funny noise, shake and the rpms would struggle to climb...I took an exit and parked my car...I turned it off and restarted it and the service light went away, it drove fine until I punched it again and the same thing happened...

Any idea what could be wrong?

Boost leak?

Misfire?
Sounds like a classic misfire need to read the codes. If CEL is triggered any code reader can be used.

What is the condition of the car; miles, mods, recent repairs?

Lots of posts on here with respect to misfire troubleshoot and repair. Most usually replace plugs then coils then injectors. Also recommended to clean the valves every 30k to 50k.

Good luck.
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      01-07-2016, 02:39 PM   #5
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Quote:
Originally Posted by n54SQUAD View Post
This happend to me coil packs ! Spark plugs ! But codes would tell you first hand . But I put a pretty penny on it .
I would put my money on this as well. Classic sign of ignition related components.
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      01-07-2016, 03:23 PM   #6
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Again, countless threads on n54 misfiring (stuttering, shaking, etc.)

read codes
swap coils to see if misfire follows
if not, then replace all plugs.
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      01-07-2016, 04:16 PM   #7
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Miss fire. Hopefully not a bad injector.
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      01-07-2016, 05:02 PM   #8
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Could be plugs, coils, injectors, or VANOS......

I would read the codes like others have mentioned.
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