Warped discs that fix themselves?

Prophet

Prophet

Prophet

Soldato
Joined
5 Oct 2004
Posts
7,395
Location
Notts
For around the last two months my A4 has had the typical vibration when braking that is caused by warped disks. More at high speeds and just a sligh pulse when coming to a stop.

However, last week it stopped. No vibration at all just perfectly smooth braking.

Disks and pads are all very healthy looking.

Any ideas?
 
A lot of people agree that warped discs hardly ever actually happen, it's almost always a deposit of pad material on the disc. Eventually it will wear off under normal driving or you can sometimes get rid of the deposits by doing a bedding in procedure again.
 
sovietspybob said:
A lot of people agree that warped discs hardly ever actually happen, it's almost always a deposit of pad material on the disc. Eventually it will wear off under normal driving or you can sometimes get rid of the deposits by doing a bedding in procedure again.
Click to expand...

This. It's harder than you think to warp a brake disc.
 
I get the odd vibration here and there, especially when I've not used the car for a couple of days. It's fine again after hitting the brakes properly a few times. Can't say I've ever worried about it bar the first time it happened!
 
It's highly likely that you warped them again, in perfect anti-alignment to the previous warping, therefore de-warping them. This is roughly equivalent to slow cooking pork, your brakes are better now.
 
Technically speaking its unevenly transfered pad material on the disk, which is now even as you have inadvertently re bedded the brakes in, hence it now being smoother.

But yes, not warped disks.
 
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