I need some help with my brakes, I've had the brake pad warning light for the last couple of weeks.
10-21-2007, 01:26 PM
#1
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I need some help with my brakes, I've had the brake pad warning light for the last couple of weeks.
I thought at first that I had the hp2's because I have an 03 2.7t with sport susp but that doesn't appear to be the case. This was my first time taking off the wheel. What brakes and size rotors do I have? I also wanted to know from the pictures how my rotors look. If I could just go through with a pad replacement or if I am going to need all new rotors too. Thanks for any help
<img src="http://pictureposter.audiworld.com/105150/dscn2094_medium.jpg">
<img src="http://pictureposter.audiworld.com/105150/dscn2096_medium.jpg">
<img src="http://pictureposter.audiworld.com/105150/dscn2094_medium.jpg">
<img src="http://pictureposter.audiworld.com/105150/dscn2096_medium.jpg">
10-21-2007, 01:53 PM
#3
AudiWorld Super User
Definitely not HP2's...
you would see the two outer pads sticking out the outer side of the caliper. Not sure which they are (I have a 2000 4.2 w/ HP2's).
If you are at 53K per your signature, from what I see you could likely go one more set of pads, then change out rotors. Rotor swept area in picture looks clean and w/out any deep grooving. As long as they aren't warped (i.e. you feel vibration) they look good enough to go another pad lap. Against strict Audi specs they may be deemed worn out though. Look at that lip at the edge of the rotor beyond where the pad sweeps. If that ridge is beyond 1mm in general, then if you look at the minimum thickness spec for the rotor in the pad swept area, you may be dropping under it. But if it's not fading and you see no cracks, were it my car I would change pads and call it good for this cycle.
By the way, thoroughly clean the rotors--I can see a lot of accumulated dust and scale in the internal air vents. Hit the disk with a rubber mallet as you rotate it to break free a lot of the scale, and blow it out with compressed air. Stay clear of the dust and/or wear a mask.
If you are at 53K per your signature, from what I see you could likely go one more set of pads, then change out rotors. Rotor swept area in picture looks clean and w/out any deep grooving. As long as they aren't warped (i.e. you feel vibration) they look good enough to go another pad lap. Against strict Audi specs they may be deemed worn out though. Look at that lip at the edge of the rotor beyond where the pad sweeps. If that ridge is beyond 1mm in general, then if you look at the minimum thickness spec for the rotor in the pad swept area, you may be dropping under it. But if it's not fading and you see no cracks, were it my car I would change pads and call it good for this cycle.
By the way, thoroughly clean the rotors--I can see a lot of accumulated dust and scale in the internal air vents. Hit the disk with a rubber mallet as you rotate it to break free a lot of the scale, and blow it out with compressed air. Stay clear of the dust and/or wear a mask.
10-21-2007, 02:11 PM
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Ok so I think I have it figured out
On my car Audi no longer used the 8 pad hp2 system, but they changed to the ATE caliper system which is a less aggressive system that uses the same size rotors as the hp2 caliper system?
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10-21-2007, 03:52 PM
#10
AudiWorld Expert
Don't forget that the pad sensor is on the INNER pad, which you cannot see in the photo...
check the thickness of the inner pads. If they still look like plenty of pad material left, check the wire for a loose pad wear sensor.