Steering shaking 50mph+

StylePoints · 05-08-2012, 06:10 PM

Got the car used. From day one steering jerks left to right back n forth. Took it to dealer and they said i had a minor cuppig on the tires which is the cause. I then got hew rims and tires. Still shakes and jerks back n forth. I took it to get alignmen and same issue still exist. So today i went to get te new wheels and tirees rebalanced at a different shop. Shop said they are at ero which means its good. But same issue is there. What is wrong with my car? What else could be causing this??

tmntmn · 05-08-2012, 06:22 PM

try taking it back to the dealer and let them know you picked up new tires!

tibra1 · 05-08-2012, 06:27 PM

You've ruled out tires/wheels could be suspension components, alignment..do you run spacers?..if so check them

THE TECH · 05-08-2012, 08:41 PM

What about brakes?

Drifty// · 05-08-2012, 11:22 PM

Get it on a frame machine to check for prior collision damage. I think a good body shop will be able to do that for you.

M3PO · 05-09-2012, 12:27 PM

Did you have the wheels and tires road force balanced or just a regular balance? This suspension design is very sensitive to tiny imbalances in the front wheel and tire.

Raptor251 · 05-09-2012, 01:38 PM

Quote:

Originally Posted by M3PO

Did you have the wheels and tires road force balanced or just a regular balance? This suspension design is very sensitive to tiny imbalances in the front wheel and tire.

THIS!

StylePoints · 05-10-2012, 12:55 AM

Quote:

Originally Posted by M3PO

Did you have the wheels and tires road force balanced or just a regular balance? This suspension design is very sensitive to tiny imbalances in the front wheel and tire.

Just regular balance at america's tire. They are pretty reputable wheel and tire shop across the country. I am not familiar with road force balanced. Whats the difference?

tibra1 · 05-10-2012, 01:01 AM

Quote:

Originally Posted by StylePoints

Just regular balance at america's tire. They are pretty reputable wheel and tire shop across the country. I am not familiar with road force balanced. Whats the difference?

Just as described..the machine adds and mimics road force while balancing..

http://www.evsmotors.com/hunter-gsp9...by-evs-motors/

I have always used regular balance with no issues..but you may need this

Drifty// · 05-12-2012, 03:32 AM

Quote:

Originally Posted by M3PO

Did you have the wheels and tires road force balanced or just a regular balance? This suspension design is very sensitive to tiny imbalances in the front wheel and tire.

Given the low speeds that OP mentions, this seems odd to me.

I get crud (sand, dirt, and other junk) collecting inside the drum of my wheels, and it doesn't seem all that evenly distributed. If such a high-precision balance were needed just for 50 mph speeds, then it seems this sort of buildup would throw the balance way off, at higher speeds.

If you were talking about 150+ mph, then I could absolutely buy the idea of a high-precision balance. But 50 mph? Doesn't sound right.

Drifty// · 05-12-2012, 03:36 AM

This really sounds to me like a bad bearing or something of that sort.

Malek@MRF · 05-13-2012, 12:10 PM

If the steering wheel is shaking at 50MPH, you can pretty much rule out that it is not because the wheels aren't road force balanced. This balancing technique becomes apparent at 78-85MPH, not at 50MPH.

If the tires have been replaced, and the problem still persists, I suggest you look into the wheels first to see if they are possibly bent.

If the wheels are in good condition, then we must begin to look at suspension hardware. You may have a bad ball joint, wheel bearing. It will not be your brakes, that will only cause vibration or judder when actually braking, not under normal cruising conditions.

After it has been diagnosed correctly, I strongly suggest an alignment. A poor alignment can really ruin a car from both perspectives: driving experience & mechanically.

Malek

StylePoints · 05-14-2012, 07:06 PM

Got my car road balanced. Turns out right side was 0.5 oz off. The shaking is 90% gone. There is still very very slight shimmy around 75mph but barely noticeable. Thnx guys! You guys are awesome.

M3PO · 05-15-2012, 11:27 AM

Nice! Glad that worked. I need to get mine done.

05-08-2012, 06:10 PM	#1
StylePoints Second Lieutenant Drives: e92 M3 Join Date: Jun 2007 Location: ca Posts: 295 iTrader: (1)	Steering shaking 50mph+ Got the car used. From day one steering jerks left to right back n forth. Took it to dealer and they said i had a minor cuppig on the tires which is the cause. I then got hew rims and tires. Still shakes and jerks back n forth. I took it to get alignmen and same issue still exist. So today i went to get te new wheels and tirees rebalanced at a different shop. Shop said they are at ero which means its good. But same issue is there. What is wrong with my car? What else could be causing this??
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05-08-2012, 06:22 PM	#2
tmntmn Lieutenant Colonel Drives: e92 M3/M-DCT Join Date: Feb 2008 Location: Bay Area Posts: 1,825 iTrader: (6)	try taking it back to the dealer and let them know you picked up new tires! __________________ THANKS TO:~<RPM>~~<SONICMS>~ ~<MODECARBON>~ ~<McKenna Performance>~ MODS: MODE CARBON GTS FRONT LIP & REAR DIFFUSER, AA GREEN FILTER, RPI SCOOPS, PERFORMANCE STEERING WHEEL, Verstraβe Extended DCT Shifter, ZCP WHEELS (POWDER COATED),LUX V4, MTECH 6K D1S, KW SLEEVES, Megan Exhaust, ACM TP, BMS FIX, BMW LED INTERIOR
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05-08-2012, 08:41 PM	#4
THE TECH BimmerPost Supporting Vendor Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas Posts: 12,567 iTrader: (39) Garage List 2014 Honda Grom [0.00] 2012 Honda Ruckus [0.00] 2005 Chevy Silverad ... [0.00] 1995 Toyota Supra [0.00] 2012 BMW E92 M3 [0.00]	What about brakes? __________________
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05-09-2012, 12:27 PM	#6
M3PO Colonel Drives: '08 IB E92 Join Date: Sep 2011 Location: OC Posts: 2,635 iTrader: (6)	Did you have the wheels and tires road force balanced or just a regular balance? This suspension design is very sensitive to tiny imbalances in the front wheel and tire. __________________ 2008 IB E92 M3\| BBS \| KW \| Arkym \| Platte Forme A.G. \| Active Autowerke \| K&N \| Fabspeed \| Dinan \| Evolve-R
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05-13-2012, 12:10 PM	#12
Malek@MRF BimmerPost Supporting Vendor Drives: E92 ZCP Melbourne 6MT Join Date: Jan 2008 Location: Irvine, California Posts: 3,267 iTrader: (5)	If the steering wheel is shaking at 50MPH, you can pretty much rule out that it is not because the wheels aren't road force balanced. This balancing technique becomes apparent at 78-85MPH, not at 50MPH. If the tires have been replaced, and the problem still persists, I suggest you look into the wheels first to see if they are possibly bent. If the wheels are in good condition, then we must begin to look at suspension hardware. You may have a bad ball joint, wheel bearing. It will not be your brakes, that will only cause vibration or judder when actually braking, not under normal cruising conditions. After it has been diagnosed correctly, I strongly suggest an alignment. A poor alignment can really ruin a car from both perspectives: driving experience & mechanically. Malek __________________ BMW PERFORMANCE SPECIALISTS. Suspension. Forced Induction. Brakes. Race Preparation. Service. Alignments. OFFICIAL PARTNERS: Öhlins. KW Suspension. Brembo. AP Racing. ESS Tuning. iND Distribution. Turner Motorsport. Facebook \| Instagram \| Yelp! \| Flikr \| Contact \| YouTube
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05-08-2012, 06:27 PM	#3
tibra1 Banned Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC Posts: 6,777 iTrader: (4)	You've ruled out tires/wheels could be suspension components, alignment..do you run spacers?..if so check them
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05-08-2012, 11:22 PM	#5
Drifty// First Lieutenant Drives: A4 quattro 3.2 MT6; E92 6MT Join Date: Mar 2012 Location: Boston Posts: 309 iTrader: (0)	Get it on a frame machine to check for prior collision damage. I think a good body shop will be able to do that for you.
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05-12-2012, 03:36 AM	#11
Drifty// First Lieutenant Drives: A4 quattro 3.2 MT6; E92 6MT Join Date: Mar 2012 Location: Boston Posts: 309 iTrader: (0)	This really sounds to me like a bad bearing or something of that sort.
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05-14-2012, 07:06 PM	#13
StylePoints Second Lieutenant Drives: e92 M3 Join Date: Jun 2007 Location: ca Posts: 295 iTrader: (1)	Got my car road balanced. Turns out right side was 0.5 oz off. The shaking is 90% gone. There is still very very slight shimmy around 75mph but barely noticeable. Thnx guys! You guys are awesome.
	0

05-15-2012, 11:27 AM	#14
M3PO Colonel Drives: '08 IB E92 Join Date: Sep 2011 Location: OC Posts: 2,635 iTrader: (6)	Nice! Glad that worked. I need to get mine done. __________________ 2008 IB E92 M3\| BBS \| KW \| Arkym \| Platte Forme A.G. \| Active Autowerke \| K&N \| Fabspeed \| Dinan \| Evolve-R
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