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Hi all, I had some fun driving in Cornwall during a recent visit and on my return realised I'm due for a pad change (fronts especially...although the pad sensor sign hasn't come up).

Also noticed that there was fine vibration through the steering wheel on light braking at motorway speeds. Wheels are balanced perfectly so it isn't the wheels. Tried a few hard braking sessions to remove disc deposits but I have concluded that it is my front discs that are warped. Hence I am having these replaced at the same time as replacing pads all-round. Parts arrived this week courtesy of VAG parts....very well packed and very fast delivery!

For those interested, I make each front disc to weigh about 12 kilos. I can see how the carbon ceramics could shave up to 20kg off the weight of the car if you changed the rears too. The front pads are RS4 standard but they seem to be made by PAGID. The quality of the parts is superb!

They look great Alex, what did it cost Ya?.

audijohn wrote:They look great Alex, what did it cost Ya?.

Thanks John, just need to get them on the car now.

I haven't got the invoice with me but from memory the discs are £240ish each. the front pads are around £170 and the rears £100-110.

Not cheap but they do last a while. Audi were much more expensive...£350 per disc and over £200 for front pads

I have a feeling my car's previous owner used to ride the brake pedal (at traffic lights etc). I tend not to do that (use the handbrake instead) and have never had a warped disc...so hopefully the new ones will sort the problem for good.

Thanks Alex, good saving.

Im curious, what do you mean by "ride the break pedal"? I use the brake pedal most of the time at traffic lights. If thats going to cause a warped disk I better change my ways amd start using the handbrake!

Regards,

AL

Mr.Sushi wrote:Im curious, what do you mean by "ride the break pedal"? I use the brake pedal most of the time at traffic lights. If thats going to cause a warped disk I better change my ways amd start using the handbrake!

Regards,

AL

Hi Al,

Quite a few fellow enthusiasts seem to have experienced disc warp when keeping their foot on the brake pedal while the car is stationary (different people apply different pressure and this also depends on where the car is...e.g on a steep hill etc). I've been told not to keep on the brake pedal after the car has finally come to a stop as this unnecessarily stresses the discs. What I do is take it off gear and put the handbrake on until I'm ready to go again.

Also from time to time, I give the brakes a good "exercise" session with some hard braking from 70 (or above...on a private runway) to 0, to remove pad deposits that may be stuck on the discs. So far, never had a warped disc this way...which makes me think that my car's previous owner may have ridden the brake pedal and/or not run the brakes in correctly.

It actually says in the manual not to sit on the brakes at lights (not a direct quote, obviously, but something to that effect is in there).

Fair enough, from now on I will make an effort not to do this anymore. Thanks for the advice

Regards,

AL