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So as I’ve tracked down my issue with brakes that was avoiding me. A vibration that comes and goes and I could never find it. So this weekend I let my niece drive the 8 and it got very bad in a short trip. Definitely coming front the front. Got it home and hit the rotors with a temp gauge. 3 at 120 and the drivers side 340 degrees. So looks like a stick caliper. So new pads and rotors are on the way.
But now I was gonna just order calipers from auto value.
Then I thought I’d ask here any bad ones or ones I should look at?
This is my wife’s car and only sees beginner track days with her and a friend so nothing special needs to be on it.
I had a similar problem with my 05. I eventually found a single stuck slide pin. I removed it, cleaned and sanded it smooth and reinstalled with some lube. Good as new. Your caliper problem may be different, but it woud be worth a look.
My own experience with a vibration that comes and goes from the front is bad wheel bearings.
Get the wheel off the ground after a nice drive and spin it by hand as fast as you can. It will start to grumble. That was the only way I could find it. There wasn't any play to speak of, so can't used the old "check for play" to find it.
The hubs are non-repairable "unit" bearings and they seem to fail a little differently than replaceable bearings. Mine were still tight, but had absolutely baked the alleged "lubrication" and were effectively running dry.
I had a similar problem with my 05. I eventually found a single stuck slide pin. I removed it, cleaned and sanded it smooth and reinstalled with some lube. Good as new. Your caliper problem may be different, but it woud be worth a look.
That was my first thought. When I did the new rotors and calipers ads I cleaned them all well, and lubed them.
I used these from Rock Auto, I like them a lot. They havent rusted out or changed color over time like most other calipers. They were suggested to me a while back from another forum member.
That was my first thought. When I did the new rotors and calipers ads I cleaned them all well, and lubed them.
Another possibility is one I encountered as a mechanic years ago on older cars, a collapsed brake line.
I haven't heard of it on 8s yet, but it's easy enough to check.
The way to test that theory is to lift the wheel and spin it, crack open the hose connection on the caliper and see if there's any change.
If the wheel spins noticeably freer, change the line.
Maybe change them anyway if you're changing the caliper.
