I have an 02 TT. I am getting ready to install new pads all around as well as new rear rotors. I read the DIY thread but still have a few questions.

1. What is bedding (as it relates to brakes) and how do you do it?/ Can I install the new pads and rotors at the same time (?
2. Are there any gotchas that i should watch out for on the pads / rotor replacement?
3. It's also time to change the break fluid ... is there a good DIY for this?

Thanks, Mark

 

1. You can install the pads and rotors at the same time. Bedding in refers to breaking in the new pads and rotors. My break in procedure is to drive the car at about 30mph with your foot dragging slightly on the brake to heat up the pads. This is a little tough with the e-throtttle body as the car will cut power if it senses you on the gas and brake at the same time. Do this for 500 yards or so. Then drive with the foot off the brake for another 500 yards to cool down. Then do 4-5 good hard stops from 40mph to zero to finish the break in procedure. The hard stops are the most important part. Not hard enough to engage the ABS, but good firm stops.
2. It is a pretty straight forward swap. Obviously the calipers need to be removed from the mount to install the rotors (10mm allen). If you are re-using the pad sensors, just be careful when pull the sensors out of the old pads, as they get a little brittle.
3. Pretty standard like any car. Start with the RR, LR, RF, then LF. You can use a pressure bleeder, or do it the old fashion way where someone pushes and holds the brake pedal to the floor, you crack the bleeder open, let the fluid run out, then close the bleeder, then the person pumps the pedal, and repeats the holding it to the floor process. Just don't pump the pedal with the bleeders open.

 

One more thing: Be careful to torque the caliper bolts properly @ 63 ft-lbs. If you overtorque them, the steel threads can strip the aluminum spindles. Don't ask me how I know.

Jon