Had the juddering brakes a couple of months ago which required new discs and pads on the front which corrected the problem.

Have only a few thousand miles on since, but have noticed some minor judder again.

I was thinking there may be an issue with the new discs and pads (fitted by mechanic who does all my work) that possibly they are a cheap brand, but the mechanic always goes for OEM parts.

Can't remember the last pads in detail, but i thought they were the same thickness from front to back (inside to out). However, see photo of new pads attached. Only the smallest part (inside of the disc) is in contact with the disc. i would guess the pads are twice as thick on the inside as the outside, you can see the difference in the refection.

Any advice appreciated.

Thanks

Colm

That's normal. The pad is chamfered, supossedly to stop groaning and noises while breaking.

Here's a pic of my old SEAT with the same 'problem' on the rear pads.

As for the juddering. it could be a hub or bearing that's not running quite straight, or the hub face wasn't spotless when the disc was installed. Do you know if he used a runout gauge when he installed them?

Edited 6 August, 201213 yr by rk696

That's normal. The pad is chamfered, supossedly to stop groaning and noises while breaking.

Here's a pic of my old SEAT with the same 'problem' on the rear pads.

As for the juddering. it could be a hub or bearing that's not running quite straight, or the hub face wasn't spotless when the disc was installed. Do you know if he used a runout gauge when he installed them?

That's a fair point, but the chamfer on mine looks a bit extreme. i had a look at the pads on Eurocarparts and they don't seem as pronounced, they aren't even noticeable.

As for the runout guage, i don't know if he did. But up until now the issue completely disappeared.

Hope it's not another problem, as i just forked out £1,200 for a new turbo 4 weeks ago!

Thanks

It could be that the discs weren't perfectly even when they were installed, but even enough not to be felt through the pedal. However, as they wear in, the discs develop thicker areas or pad material, causing a pulsating through the pedal.

Good info here: http://www.brakeworld.co.uk/TB1%20-%20BRAKE%20JUDDER%20AND%20WARPED%20DISCS.pdf

This is why it is crucial that they are absolutely level when they are installed.

Look fine to me though.

The chamfer on genuine Pagid pads is massive. Almost (if not completely) half of the total material thickness.

Try finding a nice empty stretch of road and vigorously exercise the brakes - a good few hard stops from say 50. See if that makes a difference to the judder.

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If you do that, dont stop complely, and let the brakes cool down before you park up. Maybe go up the motorway a couple of junctions and back. Leaving a pad in one place on a hot disc can make judder worse. You can tell when they're starting to get hot enough as the brakes will groan when you brake hard.