2002 VW Passat Brake Pulsing

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DR.BOB
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I own a 2002 VW Passat 1.8T with 28,000 miles and noticed some grinding noise and a slight pulsing of the brakes. I took it in for servicing and was told that the rear pads needed replacing and the front rotors needed to be turned. When I picked up the car I was told that there was a problem turning the left front brake rotor so it was replaced "at no charge to me". After the service the brakes were in worse condition. The brake pedal was very spongy and there was a severe pulsing which resulted in inconsistant brake pedal travel. I felt they were unsafe. I returned the car the next mornig and was told the right front rotor would also need to be replaced at additional charge to me. The service manager told me that it was within their guideline to replace only one rotor. I always understood that both rotors must be replaced at the same time. My question is do rotors need to be replaced in pairs and was I ripped off by the "free" rotor replacement?
Feb 5, 2007 at 7:27 AM
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BRUCE HUNT
  • ✓Experienced Mechanic
  • 3,754 POSTS
You must live in a large community or ride the brakes a lot. The brakes should last longer that 28000 miles and the rotors should be good for from 70 to 100k or more. No rotors do not have to be replaced in pairs, but they generally were out uniformly and thus are often replaced in pairs because of that. Many of the smaller cars can have the rotors turned and still be within tolerance, but unless they are treated with a brake lube application or they are not riden too hard they will warp quicker and thus I would skip the turning and replace with new. Now whether VW will replace the other front one is not my say, but in my book they should.
Feb 5, 2007 at 7:51 AM

Suggested Repair

Replace both front rotors with new rather than turning them. Rotors do not strictly have to be replaced in pairs, but they usually wear evenly, so the other front rotor should also be replaced. Address the spongy pedal and severe pulsing after the incomplete repair.

Conversation Summary

The owner of a 2002 VW Passat 1.8T with 28,000 miles reported grinding and slight brake pulsing. A shop replaced the rear pads and, after being unable to turn the left front rotor, replaced that rotor at no charge. The brakes then felt worse, with a spongy pedal, severe pulsing, and inconsistent pedal travel. The shop said the right front rotor also needed replacement at extra cost and claimed replacing only one rotor was within guidelines. The expert said rotors need not be replaced in pairs but usually wear together, preferred new rotors over turning because turned rotors can warp sooner, and believed the other front rotor should be replaced.

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