Help-Vibration over 70-75mph

Murf · 04-14-2014, 02:12 PM

Ok, I am going nuts trying to diagnose a vibration that occurs right at 75mph and increases with speed all the way to 100+. Steering wheel does not move, its a high frequency bounce that feels like I am driving a dryer. Hubs were checked and fine and it's not driveline as it occurs with the clutch in at speed. I have had all 4 wheels road force balanced 2x, have swapped wheels side to side, replaced worn front rotors, normalized tire pressures, nothing seems to help. At higher speeds its downright uncomfortable. Ideas appreciated....

chatch10 · 04-14-2014, 03:04 PM

I hope this isn't a stupid question, but did you check for a bubble on your tires? I felt the same thing and found I had a bubble on my front passenger tire. Replaced it and everything went back to perfect.

Murf · 04-14-2014, 03:15 PM

Yeah I checked and didn't see anything, tires are pretty new <7k miles.
I did have a flat plugged a few months ago but I check that too and it looked fine (small nail).

bmw325i · 04-14-2014, 04:18 PM

Could be a bent wheel but I assume you've already checked that.

rowingone · 04-14-2014, 04:22 PM

maybe rotate tires front to back to try and isolate a wheel or tire issue.

Murf · 04-14-2014, 04:23 PM

Bent wheel - I can't tell and the 2 places that balanced didn't comment. Not ruling it out....if it is bent its not visible.

I checked all my suspension bushings and they aren't leaking and seem nice and tight (car only has 50k) but makes me wonder. Could a bad bushing cause this kind of vibration?

Murf · 04-14-2014, 04:24 PM

Quote:

Originally Posted by rowingone

maybe rotate tires front to back to try and isolate a wheel or tire issue.

Would love to try that but sport suspension....

04-14-2014, 05:18 PM

Quote:

Originally Posted by Murf

Would love to try that but sport suspension....

So what?

Are you still on stock size wheel/tires? If so, the rears will fit in the front just fine

EJ_3 · 04-14-2014, 11:48 PM

Definitely sound like a slight bend. Same thing happened to me. Do the vibration increase with speed?

VMRWheels · 04-15-2014, 12:27 PM

Try moving your back wheels to the front and driving for a bit, and go from there. Unfortunately there are many issues that can cause vibrations, like bushings or even your axles. On my personal car I had issues with one of my axles failing, and it caused quite a bit of vibration through the car, and eventually wrecked my tire.

Murf · 04-15-2014, 12:36 PM

Quote:

Originally Posted by Manny_World

Definitely sound like a slight bend. Same thing happened to me. Do the vibration increase with speed?

Yep. Smooth as glass till 75mph then progressively worse with speed. 90+ is uncomfortable, feels like I am bouncing.

Delusive · 04-15-2014, 12:41 PM

If there's a bend in the wheel thats not visible the shop doing the balancing would of told you that they couldn't balance the wheel perfectly due to it having a slight bend, unless they just disregarded it because thats what my shop told me on my old wheel setup. Other then what everyone mentioned i'd be stumped to why it would be vibrating at higher speeds.

How about engine mounts? maybe the engine is moving to much that it causes vibration throughout the cars body.

Murf · 04-15-2014, 01:25 PM

Quote:

Originally Posted by JS-NA.E92

If there's a bend in the wheel thats not visible the shop doing the balancing would of told you that they couldn't balance the wheel perfectly due to it having a slight bend, unless they just disregarded it because thats what my shop told me on my old wheel setup. Other then what everyone mentioned i'd be stumped to why it would be vibrating at higher speeds.

How about engine mounts? maybe the engine is moving to much that it causes vibration throughout the cars body.

Thought about that but would feel it at higher revs/lower speeds. Vibration still there if i push the clutch in at 90mph and just coast.

I guess I need to swap back/front see if that has an affect. Not sure I feel comfortable going 75+ with this setup...

Edvinas_ram · 04-15-2014, 10:23 PM

Lol I have the same exactly issue Vibration over 75mph on 335i thats so weird. And I don't know whats wrong.. but my issue could be because of my rear tires are a bit too big and rubbing sometimes. Going to change them and check then.

Dymag · 04-16-2014, 10:01 PM

Have you upgraded your suspension ? Several people on this site (myself included) have some suspension upgrades, and have the vibration issue(s). Mine begin about 70 mph; I have not been able to sort it out yet. One of the people at the shop where I had suspension parts installed has vibration issues as well since suspension upgrades. I have my car into another shop now having it looked at.

Quote:

Originally Posted by Murf

Ok, I am going nuts trying to diagnose a vibration that occurs right at 75mph and increases with speed all the way to 100+. Steering wheel does not move, its a high frequency bounce that feels like I am driving a dryer. Hubs were checked and fine and it's not driveline as it occurs with the clutch in at speed. I have had all 4 wheels road force balanced 2x, have swapped wheels side to side, replaced worn front rotors, normalized tire pressures, nothing seems to help. At higher speeds its downright uncomfortable. Ideas appreciated....

04-17-2014, 01:54 AM

Quote:

Originally Posted by VMRWheels

Try moving your back wheels to the front and driving for a bit, and go from there. Unfortunately there are many issues that can cause vibrations, like bushings or even your axles. On my personal car I had issues with one of my axles failing, and it caused quite a bit of vibration through the car, and eventually wrecked my tire.

Are you talking about the halfshalfs? CV joint or rear wheel bearing? Or was this the live axle on a Mustang?

04-14-2014, 02:12 PM	#1
Murf Captain 885 Rep 897 Posts Drives: 2021 G80 M3C - Dravit Grey Join Date: Apr 2011 Location: Florida iTrader: (2)	Help-Vibration over 70-75mph Ok, I am going nuts trying to diagnose a vibration that occurs right at 75mph and increases with speed all the way to 100+. Steering wheel does not move, its a high frequency bounce that feels like I am driving a dryer. Hubs were checked and fine and it's not driveline as it occurs with the clutch in at speed. I have had all 4 wheels road force balanced 2x, have swapped wheels side to side, replaced worn front rotors, normalized tire pressures, nothing seems to help. At higher speeds its downright uncomfortable. Ideas appreciated....
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04-14-2014, 03:04 PM	#2
chatch10 Lieutenant 65 Rep 411 Posts Drives: 2011 E90 335i M-Sport Join Date: Sep 2011 Location: Milwaukee, WI iTrader: (1)	I hope this isn't a stupid question, but did you check for a bubble on your tires? I felt the same thing and found I had a bubble on my front passenger tire. Replaced it and everything went back to perfect.
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04-14-2014, 03:15 PM	#3
Murf Captain 885 Rep 897 Posts Drives: 2021 G80 M3C - Dravit Grey Join Date: Apr 2011 Location: Florida iTrader: (2)	Yeah I checked and didn't see anything, tires are pretty new <7k miles. I did have a flat plugged a few months ago but I check that too and it looked fine (small nail).
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04-14-2014, 04:18 PM	#4
bmw325i Major General 223 Rep 5,120 Posts Drives: 2006 BMW 325i Join Date: Oct 2010 Location: United States iTrader: (8)	Could be a bent wheel but I assume you've already checked that.
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04-14-2014, 04:22 PM	#5
rowingone Second Lieutenant 5 Rep 212 Posts Drives: 2006 330 xi Join Date: Nov 2013 Location: colorado iTrader: (0)	maybe rotate tires front to back to try and isolate a wheel or tire issue.
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04-14-2014, 04:23 PM	#6
Murf Captain 885 Rep 897 Posts Drives: 2021 G80 M3C - Dravit Grey Join Date: Apr 2011 Location: Florida iTrader: (2)	Bent wheel - I can't tell and the 2 places that balanced didn't comment. Not ruling it out....if it is bent its not visible. I checked all my suspension bushings and they aren't leaking and seem nice and tight (car only has 50k) but makes me wonder. Could a bad bushing cause this kind of vibration?
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04-14-2014, 11:48 PM	#9
EJ_3 Colonel 371 Rep 2,838 Posts Drives: e92 335i, e34 525i & e60 530i Join Date: Aug 2011 Location: N Las Vegas iTrader: (13) Garage List 2007 BMW 335i [8.34] 2016 Ram 1500 Sport [8.00] 1994 BMW 525i [10.00] 2007 BMW 530i [8.66]	Definitely sound like a slight bend. Same thing happened to me. Do the vibration increase with speed? __________________ click here for mods
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04-15-2014, 12:27 PM	#10
VMRWheels BimmerPost Supporting Vendor 2042 Rep 25,989 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	Try moving your back wheels to the front and driving for a bit, and go from there. Unfortunately there are many issues that can cause vibrations, like bushings or even your axles. On my personal car I had issues with one of my axles failing, and it caused quite a bit of vibration through the car, and eventually wrecked my tire. __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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04-15-2014, 12:41 PM	#12
Delusive Lieutenant Colonel 136 Rep 1,598 Posts Drives: Bagged E92 Join Date: May 2012 Location: Bay Area, CA iTrader: (9)	If there's a bend in the wheel thats not visible the shop doing the balancing would of told you that they couldn't balance the wheel perfectly due to it having a slight bend, unless they just disregarded it because thats what my shop told me on my old wheel setup. Other then what everyone mentioned i'd be stumped to why it would be vibrating at higher speeds. How about engine mounts? maybe the engine is moving to much that it causes vibration throughout the cars body. __________________ Instagram Youtube
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04-15-2014, 10:23 PM	#14
Edvinas_ram Enlisted Member 2 Rep 33 Posts Drives: 07 bmw 335i Join Date: Mar 2014 Location: Illinois iTrader: (0)	Lol I have the same exactly issue Vibration over 75mph on 335i thats so weird. And I don't know whats wrong.. but my issue could be because of my rear tires are a bit too big and rubbing sometimes. Going to change them and check then.
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