When I brake at motorway speed I can feel the brakes juddering as the wheels turn round. I can only feel it when braking, cruising is fine so I presume the wheels are in fine condition aned are balanced/tracked OK. I had the front pads changed around 850miles ago at the dealers, but the discs are the same.

Would changing the front discs solve the problem?

and if so does anyone have a how-to guide.

Cheers

Definitely not the ABS kicking in is it? Is it just under gentle(ish) braking?

Might be warped discs, but couldn't comment. I'd get your dealer/techie to test drive it to see if they can diagnose the braking symptoms.

i had a similar thing on my fiat

No idea what it was though, sorry

Definately not ABS, its slower than that, it also fades as the speed drops, and under 'normal' braking not particularly heavy braking.

It's only really started happening noticably in the last 500 miles or so, I've also checked that the wheel nuts are properly tightened.

I think that it is warped discs. I wouldn't hurt to change them though would it.

Edit :- The discs are only

What you got? :confused: I used discs from a car parts wholesaler and did the job on my TDI as well as OEM disks could be expected to. As for a "how to" - Its kind of like changing your pads, but once you reach "calipers off" stage, you undo the screw with an impact "thingy" driver, remove disc, and attach new disc. Might need to wind out the brake pads a bit to get around new disc too.

PD100 comfort, does it have vented discs?

I've not done anywork on my Fabia yet (its not needed any ). But have changed brakes on other cars before.

Ah, same as mine then.

I have a set of barely used discs for you car if you want? dirt cheap As a result of me fitting my 312s (along with everything else) very soon after fitting new front discs. They need a little cleaning up as they've got surface rust on from being un-used. Yours if you want them

Cheers, whats the postage going to be on them Devon to West Yorkshire?

I really need them for Saturday, as this is the only day i'm going to get to do them for at least three weeks.

You have PM.

When I brake at motorway speed I can feel the brakes juddering as the wheels turn round. I can only feel it when braking' date=' cruising is fine so I presume the wheels are in fine condition aned are balanced/tracked OK. I had the front pads changed around 850miles ago at the dealers, but the discs are the same.

Would changing the front discs solve the problem?

and if so does anyone have a how-to guide.

Cheers [/quote']

Brake judder is a real problem for anybody who is using their brakes at max power. Any track day fan gets it eventually. A lot of the time it is mistakenly described as warped disks but the usual cause is uneven transfer of pad material onto the disk at high temperature. After a few fast laps for example you try very hard not to sit stationery with your foot on the brakes or use the handbrake.

To get rid of it you can try cleaning the brake surface by driving with the brake pressed hard. This can work if it is only light. Usually though a change of pad or disk is needed. Some pads are worse than others. I have no problem with Performance Friction but loads with Ferodo in my Boxster. What does work well are drilled/grooved disks. These seem to wipe the pad clean & stop the problem somehow.

Brake judder is a real problem for anybody who is using their brakes at max power. Any track day fan gets it eventually. A lot of the time it is mistakenly described as warped disks but the usual cause is uneven transfer of pad material onto the disk at high temperature. After a few fast laps for example you try very hard not to sit stationery with your foot on the brakes or use the handbrake.

To get rid of it you can try cleaning the brake surface by driving with the brake pressed hard. This can work if it is only light. Usually though a change of pad or disk is needed. Some pads are worse than others. I have no problem with Performance Friction but loads with Ferodo in my Boxster. What does work well are drilled/grooved disks. These seem to wipe the pad clean & stop the problem somehow.

I have this problem and myself and the dealers have tried all sorts to solve it. The car has had 4 sets of Discs and two sets of pads in 20k miles.

The current discs are Brembo, they have only been on 2000miles and the judder is starting to come back again.

Skoda dealer fitted the last set of pads but looking at them they are Pagid.

Cheers

Lee

I get this now and again but a few hard stops clears it....having grooved discs and ds2500 pads.

Agree with Steve, have a read of this for a more in depth reasoning

http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml

Try taking the car out & really hammering the brakes several times, find a clear open road, drive as fast as you dare then CHECK YOUR MIRROR & brake as hard as you possibly can to a standstill, repeat a couple of times & see if that clears it.

If you get time before you do the above check to see if you have any front struts leaking or anything else leaking fluids onto the disc, Ive had a similar problem in the past & it was strut oil getting on the inside face of the disc, Rub your finger across both faces of the disc & see if any oil is there, as soon as the discs got hot it burnt off

Agree with Steve' date=' have a read of this for a more in depth reasoning

[url']http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml[/url]

Try taking the car out & really hammering the brakes several times, find a clear open road, drive as fast as you dare then CHECK YOUR MIRROR & brake as hard as you possibly can to a standstill, repeat a couple of times & see if that clears it.

I kind of agree (having read the Stoptech stuff) but without the coming to a standstill bit. Hammer the brakes (avoid triggering ABS) until the juddering stops or goes away. Then drive carefully with minimum braking for a few miles.

PS: For peace of mind I'd probably have a quick look at the disks before I did 'the above' just to be sure there's no cracking.

J.

My combi has 62k on the clock and I have this problem even with moderate braking, I'm also getting a very faint rubbing sound when feathering the brakes so I've decided to swap discs and pads this weekend to be on the safe side.

I've called my local Skoda emporium and I've been quoted

I have a VRS with vented discs which has the same problem .. juddery brakes slowing from motorway speeds .. I cant believe that they are warped , as they are soo beefy .. it is due for a service on Wednesday, and they will look at it then . This is my second VRS Octy .. the first one had no such problems .

Just so I dont get ripped off at the dealer, I will ask them to check

1) strut fluid leaking onto inside face of disc

2) Change pads to remove any uneven wear / build up of material on pad

3) last resort change discs

Is that about right ??

Cheers

Ogs

PS .. current Octy has 36000 on the clock, the previous one had 65000 when i traded it

does the steering wheel shake or can you feel the vibration through the seat , dependant on which i would get them to do a disc brake run out check with DTI gauge , if the discs have excessive run out they will need replacing with the pads ,or if its a skoda/mazda dealer your going to ,they may have a disc lathe which can be used to remove slight warpage in discs (mazda dealers have to have the lathe)

Not through the seat, but the wheel shakes quite violently now.. it eases off as the speed drops, but I can feel a very slight pulse through the pedal even at low speed . I 'll get them to check the disc run out as you suggest, but I dont know how the Skoda dealer (Horners, Bury) will resolve it ... I let you know on Wednesday ...

does sound like the front discs are warped or there maybe a disc thinkness variation as this could also cause the problem , either way ,i think you're looking at a set of discs and pads . the only other thing that may cause this fault is if the disc mounting flange was bent or there was excessive rust build up between disc and flange , both unlikely but just something to bear in mind

D'oh, didn't notice this was page 2, already responded a few weeks ago on page one.

>

J.

If it shudders through the wheel it could be badly balanced wheels causing it. I had this and there would a lower level shudder to the wheel until you come to brake and it would get very violent. And this was definatly do to the wheel as i then changed fronts to back and it went away.

Could be pad knock off. Where the pads are loose in the calliper. Had it on mine under light braking - a few brisk stops soon cured it.

I had wheels that were out of balance which no dealer or even tyre fitters picked up on for 20k miles. looks like one place even rebalanced the wheels out of balance again.

They are now going true, however the brakes give me the same motion as the out of balance wheels did so I can only assume that the pads are slightly deformed due to the effect of the wobble.

Brake judder is a real problem for anybody who is using their brakes at max power. Any track day fan gets it eventually. A lot of the time it is mistakenly described as warped disks but the usual cause is uneven transfer of pad material onto the disk at high temperature. After a few fast laps for example you try very hard not to sit stationery with your foot on the brakes or use the handbrake.QUOTE]

surely this is how the disk gets warped? i.e (if not track day) sitting at lights after heavy braking using foot brake.

if there is uneven transfer of pad material onto the disc then the unevenness is given due to the disc being out of shape....the pads cannot giv euneven transfer on thier own as the disc moves not the pad?? you get me?

I had always assumed that warped disks were caused by repeated heavy braking , such as you might find on a track day ( or when I raced my Metro ..), but on the road I do not use the brakes that much at all, and certainly avoid heavy braking whenever possible, fading 'off ' the brakes as I come to a stop etc .. all good advanced stuff

The dealer, bless him, after a short test drive, has simply stated that it needs new disks. He might be right , but I do not even think that he has considered anything else, let alone looked .......... so it goes in for disks next week ( under warranty !) - I'll let you know if it cures the issue....

Definately not wheel out of balance or pad knock off - I know what these feel like.