Long ago, in a past life, I had a new VW Rabbit. My first set of disk brakes.
On a 500 mile trip to South Louisiana, a brake application resulted in shimmy and shudder like a front wheel and rotor (held on with 4 hub bolts and one tiny screw) might be about to come off, although none did. Trip finished, returned to dealer with complaint about brakes. Dealer put goo (Plastilube) on backs of pads. No more problem ever in 100,000+ miles after that. I believe that in cases of rotors mounted to hub like a Benz or some Benzes, some will advise truing a newly installed rotor. It cannot be wrong to check for TIR, possibly .005 " max. Benz may have a specification on TIR. It is also true that if rotors are stocked in the auto parts store/warehouse on edge instead of lying flat, they may warp. No guarantee on that actually happening. >From: "Tom Hargrave" <[EMAIL PROTECTED]> wrote to >To: "'John Robbins'" <[EMAIL PROTECTED]>, >Warped rotors can be caused by corrosion on the face of the hubs. The >unevenness will translate into inevenness in the rotor. > >From: "John Robbins" <[EMAIL PROTECTED]> >Subject: [MBZ] Warped rotor question with bonus "I'm an idiot" story > >I decided to replace the pads and rotors on the 2.5T today... The old >rotors were pretty thin and there was an occasional shuddering when >coming to a stop. Thinking it was a warped rotor and since they were >thin I just decided to throw parts at it and see what happened. > >Anyway, I'm putting one of the rotors on, and it is noticeably warped >when you spin it on the car. I tried to mount it again, but still had >the same problem. What gives? I doubt it came warped from Rusty. >There was still a slight bit of shudder while driving, but I don't know >for sure because of my idiot story. > >Any ideas? > >Idiot story: While on the test drive the brakes started making a >horrible metal on metal sound... Turns out I put one of the pads in >backwards (pad side to piston, backing side to rotor). So I'm going to >find out the hard way if the rotor from Rusty was warped seeing as there > >are some nice chunks missing out of the one on there now!! :( > >John > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com