Technical Car/Motor Issues > BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking.
Thread Author: Pezzer Replies: 7
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New Tue 28 Mar 17 21:32 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Pezzer
Hi there was wondering if anybody has any bright ideas. I started to get vibration under braking (nothing through the steering). The rear discs needed changing so I got this done and it sort of solved the problem initially. However it soon returned so I got the rear wheels rebalanced and the guy who did this said that one of the rear wheels was a badly buckled due to hitting a pot hole. It has continued to get worse so I took the car to a recommended wheel repair specialist who to be fair to them said that wheel was only very very slightly out and then put the rear wheels on the machine and made some rude comments about how they had been balanced and re did them. So now the vibration under braking is still there but not as bad but the wheels dont feel balanced at speed on the motorway. Im now not sure quite what to do!

ps 19 inch alloys .
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New Tue 28 Mar 17 22:10 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Zero
the disks and pads need changing at the other end.
Last edited by: Zero on Tue 28 Mar 17 at 22:10
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New Tue 28 Mar 17 22:14 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Pezzer
Were done not long ago and there is no shaking through the steering under braking. (I had this on its predecessor).
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New Tue 28 Mar 17 22:17 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Zero
sticking callipers causing incomplete pad/disk contact. Can does not take long to set in after a pad/disk change
Last edited by: Zero on Tue 28 Mar 17 at 22:17
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New Wed 29 Mar 17 07:43 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - jc2
Suspension bushes?
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New Thu 11 May 17 14:10 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Pezzer
Update: Front discs (and pads) changed again - problem solved. I'm suspecting poor quality discs were fitted although would still have expected to feel something through the steering.
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New Fri 12 May 17 02:06 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - VxFan
You said previously the rears had been changed. Presumably the hub backplates and disc mating surfaces were clean prior to assembly the first time?
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New Sat 13 May 17 21:17 
 BMW 3-Series E92 Coupe - 12 3.0 Vibration under braking. - Zero

>> were fitted although would still have expected to feel something through the steering.

Some power steering systems damp it out.
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