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      07-02-2014, 11:55 AM   #1
bde
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steering column wobble under harsh road conditions

Occasionally, I have a steering column wobble when road conditions get bad (winter potholes etc). This happens in about 10% of situations. It doesn't usually wobble when driving over bumps etc. And I drive slowly about 20 km/h and can still feel a slight wobble. ( again that's when driving over a series of holes and only in about 10% of situations). Steering wheel itself is rock solid.

Anyone had similar experience?

Thanks
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      07-02-2014, 12:31 PM   #2
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I think you might want to look at the steering column coupler, and the wear in the joint. I had this occur in my E36.
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      07-02-2014, 01:24 PM   #3
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Quote:
Originally Posted by thekurgan View Post
I think you might want to look at the steering column coupler, and the wear in the joint. I had this occur in my E36.
Thanks!

Bringing it to my indy tomorrow to take a look. I've had it for a while just never paid much attention to it really since I usually don't drive over rough road sections and even then it happens very rarely, but worth to have it checked.
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      07-02-2014, 01:37 PM   #4
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Quote:
Originally Posted by bde View Post
Thanks!

Bringing it to my indy tomorrow to take a look. I've had it for a while just never paid much attention to it really since I usually don't drive over rough road sections and even then it happens very rarely, but worth to have it checked.
I believe it's this piece:
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      07-02-2014, 01:46 PM   #5
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Quote:
Originally Posted by thekurgan View Post
I believe it's this piece:
Thanks man!

Did a quick check and it seem to be items 5 and 6 on the diagram here:

http://www.getbmwparts.com/parts/200...agramCallOut=6
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      07-02-2014, 01:55 PM   #6
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Quote:
Originally Posted by bde View Post
Thanks man!

Did a quick check and it seem to be items 5 and 6 on the diagram here:

http://www.getbmwparts.com/parts/200...agramCallOut=6
Yes, that looks like the culprit.
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      07-03-2014, 06:33 PM   #7
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Well, had the mechanic take a look at it today. He got to the bottom of the steering rack to check and everything was fine there. To go further up the rack will require quite a time investment and $$ so I said no.

However, he suggested retorquing all front suspension mounting bolts up to spec before he even started looking at the car as quite a few M's hadn't been torqued to spec previously (this is going both from e46 and e9x)

So, low and behold, only one bolt was torqued to spec. They retorqued all the bolts and what a difference! Car feels solid and planted now. Not that I have felt it was loose before. I could only tell from back to back driving, but major difference in feel from steering and suspension firmness (I drive on normal edc mostly). I haven't encountered the issue I've had yet and have to do more driving, but it's definitely an improvement and perhaps this was related to the torque spec. Feels like a totally new ride!

The car was probably never looked at for this issue from the build date so it's definitely worth checking on older models!
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      07-06-2014, 12:58 PM   #8
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Do you know which bolts he needed to re-torque?
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      07-06-2014, 08:45 PM   #9
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Quote:
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Do you know which bolts he needed to re-torque?
No clue really since I wasn't there. He said the re-torqued all front suspension mounting bolts and that's about it- had to remove panels from the bottom to get access to most of it.

Didn't have the steering column issue since.
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      07-07-2014, 01:17 PM   #10
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Quote:
Originally Posted by bde View Post
No clue really since I wasn't there. He said the re-torqued all front suspension mounting bolts and that's about it- had to remove panels from the bottom to get access to most of it.

Didn't have the steering column issue since.
Thanks, man; I've got something to help pinpoint the issue.
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      07-07-2014, 02:11 PM   #11
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Thanks, man; I've got something to help pinpoint the issue.

No worries, let me know if you'll come up with anything.
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      07-07-2014, 10:32 PM   #12
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I too have been having this issue but thought it was normal. Car goes to the dealer next week for service so we'll see if they try to address the issue or if I'll have to take it to an independent shop after my appointment.
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      07-08-2014, 11:27 AM   #13
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My issue is similar, but not over harsh roads, rather, if I'm turning to a driveway (angled wheel), I can almost feel in the wheel some movement. It's solid at all other driving situations. I had the FCAB and thrust bushings checked, and they're like new (38k miles on the car). Steering connection points are also solid. I did replace a sway bar end link on the driver's side, but that had no effect, it just had a bit of play so I replaced the bitch, damn not cheap either.
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      07-09-2014, 12:04 PM   #14
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Did you go through front suspension mounting points? Tried physically pushing the front wheels back and forth to see if there is some play maybe.

Hard to tell, but maybe a starting point
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      07-09-2014, 12:25 PM   #15
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Yeah, I did, thinking it was a wheel bearing with some premature wear; it's really odd, but re-torquing the components is an easy task and probably something on my routine list.
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