Brake pedal judder + wheel wobble

TBennet · 26th February 2023, 21:26

Hi all,

I'm getting judder in the brake pedal and wobble in the steering wheel when braking. The harder you brake the more noticeable it is.

I assumed it must be a warped brake disc but some reading around suggests that there can be other causes.

What should I check? (And in what order?)

Many thanks.

Lagetha · 26th February 2023, 23:56

Quote:

Originally Posted by TBennet

Hi all,

I'm getting judder in the brake pedal and wobble in the steering wheel when braking. The harder you brake the more noticeable it is.

I assumed it must be a warped brake disc but some reading around suggests that there can be other causes.

What should I check? (And in what order?)

Many thanks.

It could be a worn wheel bearing, jack it up and check for wobble at the hub, also while it is off the ground spin the wheel to check it is not the disc binding/warped, and for any grinding noise from the hub.

Sent from my Note_7P using Tapatalk

Arctic · 27th February 2023, 01:04

Quote:

Originally Posted by TBennet

Hi all,

I'm getting judder in the brake pedal and wobble in the steering wheel when braking. The harder you brake the more noticeable it is.

I assumed it must be a warped brake disc but some reading around suggests that there can be other causes.

What should I check? (And in what order?)

Many thanks.

Hi Tim.
At what speeds 5/10mph or at any speeds when braking, if the slower speed sounds like ABS is kicking in, could be due to rust on one of the front or rear bearing, is the ABS light flickering ?

TBennet · 27th February 2023, 06:18

I'm sure the issue isn't ABS related. The problem is most noticeable when braking hard from high speed and the rate of the judder is proportional to the speed of the car.

(I should add that my initial assumption was that a patch of rust had built up on one of the discs and that this might wear off with use, however it's just come back from a week of brisk driving around the b-roads of Suffolk that didn't cure the problem!

Mike Noc · 27th February 2023, 08:26

If you have a clock gauge check the discs are running true, and if not then remove them and check the hubs themselves. I had a bent hub a few years ago.

planenut · 27th February 2023, 08:55

I have had "warped" discs in the past which had similar symptoms.

MissMoppet · 27th February 2023, 09:16

The other posters above all and each have vastly more experience than me but for years I have had a brake judder despite replacing front discs (Pagid) and pads. Last week I replaced the pads and this time took more time and trouble by properly filing and cleaning the pad carrier in all its grooves - and smearing with Copaslip as the excellent Rimmer Bros chappy shows. Judder cured. Never had such smooth braking.

Drewski · 28th February 2023, 15:20

'In the process of replacing my discs and the old ones are in a shocking state. Don't just check the outer surface, look at the inside one too, one of mine had fairly large section flake off the back!

26th February 2023, 21:26	#1
TBennet Regular poster MG ZT-T 190 Join Date: Dec 2017 Location: Manchester Posts: 60 Thanks: 3 Thanked 9 Times in 7 Posts	Brake pedal judder + wheel wobble Hi all, I'm getting judder in the brake pedal and wobble in the steering wheel when braking. The harder you brake the more noticeable it is. I assumed it must be a warped brake disc but some reading around suggests that there can be other causes. What should I check? (And in what order?) Many thanks.

27th February 2023, 09:16	#7
MissMoppet Posted a thing or two R 75 Tourer diesel Conny 2002, V6 Conny saloon petrol 2003 Join Date: Mar 2013 Location: Taunton Posts: 1,129 Thanks: 212 Thanked 406 Times in 223 Posts	The other posters above all and each have vastly more experience than me but for years I have had a brake judder despite replacing front discs (Pagid) and pads. Last week I replaced the pads and this time took more time and trouble by properly filing and cleaning the pad carrier in all its grooves - and smearing with Copaslip as the excellent Rimmer Bros chappy shows. Judder cured. Never had such smooth braking. __________________ Rover 75 Tourer Conny 2002 remapped 160 auto, R75 V6 2.5L auto Connoisseur 2003

28th February 2023, 15:20	#8
Drewski Loves to post 2002 CDT Connie SE Tourer Join Date: Mar 2011 Location: Cambridge Posts: 482 Thanks: 21 Thanked 16 Times in 10 Posts	'In the process of replacing my discs and the old ones are in a shocking state. Don't just check the outer surface, look at the inside one too, one of mine had fairly large section flake off the back! __________________ 2002 Connie CDT Tourer

27th February 2023, 06:18	#4
TBennet Regular poster MG ZT-T 190 Join Date: Dec 2017 Location: Manchester Posts: 60 Thanks: 3 Thanked 9 Times in 7 Posts	I'm sure the issue isn't ABS related. The problem is most noticeable when braking hard from high speed and the rate of the judder is proportional to the speed of the car. (I should add that my initial assumption was that a patch of rust had built up on one of the discs and that this might wear off with use, however it's just come back from a week of brisk driving around the b-roads of Suffolk that didn't cure the problem!

27th February 2023, 08:26	#5
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	If you have a clock gauge check the discs are running true, and if not then remove them and check the hubs themselves. I had a bent hub a few years ago.

27th February 2023, 08:55	#6
planenut Regional Secretary Rover 1.8T Tourer Join Date: May 2007 Location: Heathrow Posts: 6,955 Thanks: 1,551 Thanked 2,036 Times in 1,264 Posts	I have had "warped" discs in the past which had similar symptoms.