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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Drifting left and right on highway



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      10-23-2010, 07:32 PM   #1
megaladon
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Drifting left and right on highway

Hi Everyone,

I am a new owner of a 2011 328i Sedan MT non-sport. Love the car but have some concerns about rumbling noise at highway speeds on asphalt freeways. Took back to dealer to have the balance checked. They road force balanced all four tires and replaced the front left which they said was out of spec. Went back after the balance since the problem was still there and they said it was the run flat tires and that is how the cars are.

Today while driving at around 70, I noticed that while holding the steering wheel perfectly still, the car would drift to the left, then to the right, and back. Is this tramlining that I am experiencing or could it be related to the rumbling noise I can hear and feel thru the steering wheel and accelerator pedal.

Any input feedback would be greatly appreciated.

Last edited by megaladon; 10-23-2010 at 07:43 PM. Reason: remove name
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      10-23-2010, 08:39 PM   #2
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I have only experienced that once and it was due to severely over inflated front tires. Defective gauge at the tire pump. Switched to electronic hand held gauges ever since. Suggest you double check your tire pressure against spec in manual. Good luck.
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      10-23-2010, 10:14 PM   #3
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The bridgestone RFTs do tend to tramline a little. The sport cars are much worse. Non-RFTs are better. Check your ware pattern. If you're getting uneven ware, you're gonna get vibration and tramlining issues. Proper alignment and tire pressure will fix that.
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      10-24-2010, 12:13 AM   #4
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happens to my e90 on bad roads.. here in India... I have to hold steering very very tight...
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      10-24-2010, 07:47 AM   #5
megaladon
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I have the Continental Run Flats. Only 800 miles on the car. Tire pressure is set to the pressure recommended on the door: 32F 39R.
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      10-24-2010, 08:21 AM   #6
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I've heard that too much toe-out can cause that. I have also heard that new BMWs usually need an alignment, but I don't really know if that's true.
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      10-24-2010, 08:33 AM   #7
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      11-04-2010, 10:18 PM   #8
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Took the car in to the dealer today to fix a body panel (bumper) that was loose.

Mentioned the issues I was having at highway speed. They checked the alignment and said it was out quite a bit. They did front and rear camber and toe adjustment. Haven't had much of a chance to see if that has resolved the drifting issue.

I hope this bad alignment from the factory did not permanently damage the tires by uneven wear, they only have 1200 miles on them.
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      11-05-2010, 09:33 AM   #9
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I've had the same issue on my car. Brought to the dealer multiple times and they say everything is in spec, yet my car still pulls to the left.
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BMW, please get rid of the RFT's and give us a spare tire!
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      11-05-2010, 01:01 PM   #10
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The run flat tires are horrible for causing this. It annoyed the hell out of me until replacing the wheels and tires. Now the car goes straight down the road.
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      11-05-2010, 08:50 PM   #11
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Quote:
Originally Posted by subieworx View Post
The run flat tires are horrible for causing this. It annoyed the hell out of me until replacing the wheels and tires. Now the car goes straight down the road.
+1

tramlining
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      11-05-2010, 09:08 PM   #12
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"IN SPEC" really doesn't mean much...you could have the toe on each wheel at max out for each wheel while still being in spec and still get pulled all over by the small imperfections in the road. I prefer 0 toe front and rear, and these cars most definitely do not come that way from the factory...eventhough they should.
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      11-05-2010, 10:45 PM   #13
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Quote:
Originally Posted by redline2 View Post
I have only experienced that once and it was due to severely over inflated front tires. Defective gauge at the tire pump. Switched to electronic hand held gauges ever since. Suggest you double check your tire pressure against spec in manual. Good luck.

AMEN to this one. I had a truck that I got back from the dealer after new tires and it was all over the road...

Looked at the tire pressure - 70PSI!!



Regardless, if you just had it re-balanced either it's overinflation versus the road itself. Does it do it on all streets?
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