Steering juddder when braking from 100mph

arumjaved · 10-10-2021, 10:54 PM

Hi all had new brakes fitted around 1500 miles ago noticed when braking from over 100moh the steering judders could these be warped discs ? And how can you check? Thanks

Neilb76 · 10-11-2021, 01:53 AM

I would guess the disc could be warped. Only way is to test it your self remover the wheel and put something like a metal ruler against the disc. Turn the disc and see if it touches or not. Best way really with out taking it to a garage.

Other option is have them skimmed. I've done that and it cured it

M5Rick · 10-12-2021, 02:42 AM

Just the pads then you had fitted, if it didn't happen before what make of pads did you have installed.

arumjaved · 10-12-2021, 02:45 AM

Where would I get these skimmed from? And the pads are genuine bmw ones ! Thanks

M5Rick · 10-12-2021, 03:48 AM

You bedding the pads in gently for the first 150-200 miles..

Taheemr · 10-12-2021, 03:51 AM

had this same issue after pads and discs were replaced, it was put down to the tyres being out of roundness, you could see the ovality as they were spun on the balancing machine

Housekeeping · 10-12-2021, 05:15 AM

Do less than 100 mph, problem solved??

JLR1969 · 10-13-2021, 09:20 AM

Could be lower control arm, I had the same issue and new discs, pads dynamic balancing etc nothing worked

Lower control arm was replaced and it fixed it

10-10-2021, 10:54 PM	#1
arumjaved New Member 2 Rep 5 Posts Drives: BMW 645I 2004 Join Date: Mar 2016 Location: Birmingham iTrader: (0)	Steering juddder when braking from 100mph Hi all had new brakes fitted around 1500 miles ago noticed when braking from over 100moh the steering judders could these be warped discs ? And how can you check? Thanks
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10-11-2021, 01:53 AM	#2
Neilb76 Private 9 Rep 58 Posts Drives: BMW 420d Join Date: Dec 2018 Location: Uk iTrader: (0)	I would guess the disc could be warped. Only way is to test it your self remover the wheel and put something like a metal ruler against the disc. Turn the disc and see if it touches or not. Best way really with out taking it to a garage. Other option is have them skimmed. I've done that and it cured it
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10-12-2021, 02:42 AM	#3
M5Rick General 59991 Rep 19,522 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	Just the pads then you had fitted, if it didn't happen before what make of pads did you have installed.
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10-12-2021, 02:45 AM	#4
arumjaved New Member 2 Rep 5 Posts Drives: BMW 645I 2004 Join Date: Mar 2016 Location: Birmingham iTrader: (0)	Where would I get these skimmed from? And the pads are genuine bmw ones ! Thanks
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10-12-2021, 03:48 AM	#5
M5Rick General 59991 Rep 19,522 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	You bedding the pads in gently for the first 150-200 miles..
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10-12-2021, 03:51 AM	#6
Taheemr Captain 280 Rep 731 Posts Drives: M6 GC Join Date: Nov 2011 Location: Mids iTrader: (0)	had this same issue after pads and discs were replaced, it was put down to the tyres being out of roundness, you could see the ovality as they were spun on the balancing machine
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10-12-2021, 05:15 AM	#7
Housekeeping Lieutenant 596 Rep 469 Posts Drives: 2013 BMW M5 Join Date: Mar 2016 Location: Earth iTrader: (0)	Do less than 100 mph, problem solved??
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10-13-2021, 09:20 AM	#8
JLR1969 Major General 1882 Rep 7,000 Posts Drives: Kubota GR1600 Join Date: Dec 2008 Location: England iTrader: (1)	Could be lower control arm, I had the same issue and new discs, pads dynamic balancing etc nothing worked Lower control arm was replaced and it fixed it
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