14Q5

I recently got a brake service and noticed my rears have a lip on the middle of the disc. The drivers side is worse than the passenger, but i dont recall if the lip was there before the service about 4000 km ago. Can you check your rear discs and tell me if you have the same lip in the middle? During the service everything was fine but they stated they should be cleaned and re-lubed.




drivers rear disc





passenger rear disc

IntheQ5

Just rocks or debris fell into the pad. It will wear itself down and disappear.

14Q5

Thats what i thought at first too, but its not a groove its a ridge. And the fact is the same of both sides i was curious if the rears have a V groove in the pad that causes this.

DanMontgomery

I got about 15,000 miles on both my 2014 and 2105...Don't see anything like that.

Not sure that helps.....would of thought it was a rock or something too, but you already checked that.

V/r
Dan

Hockeymonkey

One of mine has 30K the other 10k and neither look like that.

q5 dave

No. 36k on the Q

MurrayA4

14Q5
I have a 14 Q5 TDI and your post intrigued me so I went out and looked.No signs of any ribs on the discs.Original brakes approx 22k Miles.If it was mine I would go to you garage and have them disassemble brakes and determine what is going on before something worse happens.Good luck.

IntheQ5

Just take your car to a self car wash and pressure wash around the brake area. Raised grooves is like something is grinding on it. Like a chalk board. Debris/rocks is softer than metal so it will leave a ridge mark.

14Q5

Yeah I was afraid of this. It seems very convenient after I refuse to change perfectly good brakes parts the result of the servicing i directed instead suddenly leaves me with issues to develop.

Should be an interesting conversation after my service today...

Bob Petruska

Looks like the pads that they installed have a lateral grove in them by design. Did they use OEM Audi pads?

Look at the pads from the edge, do you see the grove?