jcman

There are two type of rotors with the same diameter, here are the dimensions for the HP dual piston Bendix part #PRT5555

jcman

Here is the rotor for the single piston Bendix part #PRT5408

jcman

I used this Bendix site for reference and found that the 2002 models seem to have a difference in the 321mm rotors vs 2001

http://www.bendixcatalog.com/PartDet...=Brake%20Rotor

kjwhite04

The thickness and/or offset is the problem, not the diameter. Like I said, it's the front face rubbing, not the outer edge.

kjwhite04

According to the tag on my Audi service record manual, my code is 1LX which is what the rotors I bought are made for. The two rotors you show are the (approximately) 16.7mm offset and the 22.7mm offset. Supposedly the 22.7mm offset is only for the A6 with the 4.2L. But like I said, the Audi parts department said a 320x30mm rotor is called out for my car. He gave me a print-out with the part number that I mentioned before, I have this at home and I will scan it when I get back. Either way, that rotor from Audi is identical to the rotor from blauparts and to the rotor I took off my car (except for the turned down thickness) and neither of the new rotors fit without rubbing on the caliper. It seems the rotor dimensions are correct so something else must be different. I did change the cv shafts a year and a half ago or so but I am not sure how that would affect this situation although its in the same area. I installed the blauparts rotors with 2 mm thick washers in between where the caliper mounts to the upright and it centered the rotor perfectly and so far there are no issues but it should not have to be this way...

kjwhite04

Believe me, I have taken a close look at the whole situation and I just cannot find any irregularities or anything that could be done differently.

kjwhite04

Even the rotor straight from Audi rubs in the same spot. The caliper assembly has no effect because where its rubbing is a solid chunk of metal. Once it is bolted, it does not move and there is virtually no play in how it bolts to the upright. It is not rubbing on the floating part at all. Also, in all the research I have done for this I do not recall coming across a 312mm rotor for the dual piston lucas calipers.

2.7Lturbo

do you have the old rotor? is this front or rear?

if it is rear, measure the hat height on the old rotor and get back to me, i literally have a spare rear rotor set in my garage that were the wrong hat height someone just gave to me!

kjwhite04

Yes I have the old rotors. I am talking about the front. I don't need rotors. I would like to understand why the correct rotors for my car do not fit.

2.7Lturbo

because audi can, does, and will continue to, switch and supersede parts without warning or good documentation.


take my car, my front axles have a standard cv join on the inside, same as the outside. according to audi, they shouldn't exist on my car in the USA, but a select number during the split year (2002) were built with EU spec parts due to not having the USA spec parts from the manufacturer soon enough.

fast forward, now when i look i cant find parts for that axle, and im pretty much SOL when the inner goes as while the cv joint can be replaced with a standard part, the retaining clips are not being sold in the USA anymore and i cant source them from germany.


long story short, sometimes audi does crap behinds the scenes and it pisses everyone off, my advice would ne to get ETKA ASAP. its the only thing that keeps me somewhat sane