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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 > Shaking On Idle



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      10-29-2020, 06:12 AM   #1
snaeem155
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Shaking On Idle

Hi All,

My car has a very clear vibration (almost pulse like) on idle which I can feel through the seats.

Idle remains flat and doesn't drop at all.

No codes whatsoever.

I want to tackle this as its annoying, what would be my first port of call?

Coil packs were done 2 weeks ago, sparkplugs will be done this week.

Failing that what else could it be? Its never been walnut cleaned either.

Thanks!
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      10-29-2020, 08:19 AM   #2
Saif2018
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Quote:
Originally Posted by snaeem155 View Post
Hi All,

My car has a very clear vibration (almost pulse like) on idle which I can feel through the seats.

Idle remains flat and doesn't drop at all.

No codes whatsoever.

I want to tackle this as its annoying, what would be my first port of call?

Coil packs were done 2 weeks ago, sparkplugs will be done this week.

Failing that what else could it be? Its never been walnut cleaned either.

Thanks!
Walnut Blasting and Plugs should improve Idle.

Can you post an idle log?

Did you sort your wastegate rattle?
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      10-29-2020, 08:29 AM   #3
snaeem155
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Quote:
Originally Posted by Saif2018 View Post
Walnut Blasting and Plugs should improve Idle.

Can you post an idle log?

Did you sort your wastegate rattle?
I'll get a log up shortly.

And no, PMP are booked out completely and can't find anyone else that's as reputable with the N54.
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      10-29-2020, 09:27 AM   #4
Smgs1992
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Plugs if not try walnut blasting
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07 E92 335i 6MT, MMP inlets, DCI, VRSF 7.5 competition intercooler, VRSF catless downpipes, VRSF chargepipe, 335is clutch, Vader Solutions stage 2 LPFP, MHD stage 2+, Hawk HPS 5.0 pads, R1 Concepts drilled slotted rotors, TSW Nurburgring 19x8 19x9.5
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      10-29-2020, 09:29 AM   #5
tcphoto
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If no codes, walnut blast and engine mounts are the first things to come to mind.
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      10-29-2020, 10:01 PM   #6
_N54
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I had a slight rough idle and more noticeable when it was a cold start and walnut blasting fixed it.
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