Vibration Problem

TylerMcCraw · 06-25-2018, 07:12 PM

Hey guys! So im having an issue from around 110-150+ I have this weird vibration coming from all around me (ON THROTTLE), I also have some vibration around 70-100, But it isn't nearly as bad as once I pass 110. And before you ask, Ive had the wheels road force balanced, No bent wheels, Its aligned, and this issue is the same with or without spacers.. any ideas? maybe I have a bad driveshaft?

evdok · 06-25-2018, 07:19 PM

Are your brake disc's ok?

TylerMcCraw · 06-25-2018, 07:20 PM

Quote:

Originally Posted by evdok

Are your brake disc's ok?

You know what, My rear discs have some hairline cracks in them, I have a service appt to fix them.

evdok · 06-25-2018, 07:22 PM

If they are warped you will get vibration through the cabin.

JamesWWIII · 06-25-2018, 07:41 PM

Quote:

Originally Posted by evdok

If they are warped you will get vibration through the cabin.

Even while on the throttle and not the brakes?

evdok · 06-25-2018, 07:43 PM

Yep

TylerMcCraw · 06-25-2018, 07:45 PM

Quote:

Originally Posted by evdok

Yep

But it doesn't vibrate at all if I'm not on the throttle

evdok · 06-25-2018, 07:47 PM

Oh right, Could be your engine mounts.

kingmonkey8 · 06-26-2018, 06:20 AM

Quote:

Originally Posted by TylerMcCraw

Hey guys! So im having an issue from around 110-150+ I have this weird vibration coming from all around me (ON THROTTLE), I also have some vibration around 70-100, But it isn't nearly as bad as once I pass 110. And before you ask, Ive had the wheels road force balanced, No bent wheels, Its aligned, and this issue is the same with or without spacers.. any ideas? maybe I have a bad driveshaft?

I have a similar issue from about 80+mph. There is another thread on this.

https://f30.bimmerpost.com/forums/sh...d.php?t=891597

What spec is your car? Is it auto or manual?

evdok · 06-26-2018, 06:52 AM

I’ve got a similar issue but around 80mph I can feel my chair trembling slightly I’ve had the wheels balanced and they are okay I’m putting it down to front brake pads only have about 3mm left resulting in magnifying slight disc warp if any.

evdok · 06-26-2018, 06:54 AM

Had same issue years back in a E30, once disc & pads changed all was smooth again.

TylerMcCraw · 06-26-2018, 11:14 AM

My car is a 8AT

kingmonkey8 · 06-26-2018, 02:21 PM

Quote:

Originally Posted by TylerMcCraw

My car is a 8AT

A few have been reported relating to the N20 6MT model.

You say on throttle. So when you release does the vibration subside?

TylerMcCraw · 06-27-2018, 10:47 PM

Figured it out! My flex disc on the driveshaft is completely ripped and trashed!

kingmonkey8 · 06-28-2018, 04:02 AM

Quote:

Originally Posted by TylerMcCraw

Figured it out! My flex disc on the driveshaft is completely ripped and trashed!

Easy fix then. How have you managed to shredd the flex disc?

My driveshaft has two flex discs. Somehow I think these are causing the vibration or putting the drive shaft out of balance.

On your car, could you feel the vibrations through the chassis?

TylerMcCraw · 06-29-2018, 05:42 PM

Quote:

Originally Posted by kingmonkey8

Easy fix then. How have you managed to shredd the flex disc?

My driveshaft has two flex discs. Somehow I think these are causing the vibration or putting the drive shaft out of balance.

On your car, could you feel the vibrations through the chassis?

I guess just driving the car hard, But yea I feel it throughout the chassy.

06-25-2018, 07:12 PM	#1
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	Vibration Problem Hey guys! So im having an issue from around 110-150+ I have this weird vibration coming from all around me (ON THROTTLE), I also have some vibration around 70-100, But it isn't nearly as bad as once I pass 110. And before you ask, Ive had the wheels road force balanced, No bent wheels, Its aligned, and this issue is the same with or without spacers.. any ideas? maybe I have a bad driveshaft? __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
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06-25-2018, 07:19 PM	#2
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	Are your brake disc's ok? __________________ Happy Motoring Evdok
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06-25-2018, 07:22 PM	#4
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	If they are warped you will get vibration through the cabin. __________________ Happy Motoring Evdok
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06-25-2018, 07:43 PM	#6
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	Yep
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06-25-2018, 07:47 PM	#8
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	Oh right, Could be your engine mounts.
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06-26-2018, 06:52 AM	#10
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	I’ve got a similar issue but around 80mph I can feel my chair trembling slightly I’ve had the wheels balanced and they are okay I’m putting it down to front brake pads only have about 3mm left resulting in magnifying slight disc warp if any.
	Appreciate 0 Quote

06-26-2018, 06:54 AM	#11
evdok Lieutenant Colonel 824 Rep 1,912 Posts Drives: 330D M/SPORT xDRIVE INDIVIDUAL Join Date: May 2015 Location: WORCESTERSHIRE iTrader: (0)	Had same issue years back in a E30, once disc & pads changed all was smooth again.
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06-26-2018, 11:14 AM	#12
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	My car is a 8AT __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
	Appreciate 0 Quote

06-27-2018, 10:47 PM	#14
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	Figured it out! My flex disc on the driveshaft is completely ripped and trashed! __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
	Appreciate 1 evdok824.00 Quote