daveblasvegas

Does Audi recoomed to machine front brake rotors when puttining on new front brake pads? My Q5 only has 15,000 miles. One Audi dealership states the rotors need to be machined, and the other states that Audi does not recommend the rotors to be machined. Any info on this is appreciated!

abacon09

No expert here, but my experience with dealers turning rotors is they may be likely to turn it slightly out of alignment causing braking vibrations. My opinion would be to not have them turn it. If the rotor is already straight and level and you put new brake pads on it the new pads well wear into the existing rotor.

m1964

Agreed.
Also, cutting the rotors will reduce their ability to absorb heat, which will lead to pads overheating sooner.

HaveBullDogWillTravel

If you've worn out the pads then the rotors need to be replaced. If you have them surfaced then it's likely that the rotors will be well below spec before the 2nd set of pads are ready for replacement. Thin rotors are more apt to distort and crack.
If you are replacing front pads with low dust pads before the OEM pads are worn out and the rotors are not "well-worn" then you need to remove the old pad material with sandpaper and/or a wire cone brush attached to a drill.
Worn out pads=worn out rotors.

Jusforfun

measure them! Audi allow for a certain amount of thinning if they are within this tolerance then leave them alone. Generally Audi rotors are matched for hardness to the pads for more powerful braking. This means they wear down at more or less the same rate as the pads. Sometimes you get a second go if you are lucky.
I would have expected SUV rotors to last at least 25 to 30k so at 15k you may well be fine. Either way do not get them surfaced.

Brozee

15k for rotors is pathetic. My A8 is still on stock rotors at 80k, and still going good. Either somethings wrong or those are some crap pads and rotors if they go bad ad 15k.

jeff968

I haven't turned rotors in years. It is always replace and i usually do that with the second pad replacement around 75K.

The G Man

You are not really saving that much money by turning rotors, one can get a set of oem rotors cheap on the internet. Turning rotors now a days is just not worth the trouble.