Cleaning coated Zimmerman rotors before install.

Scholz · Post by **Scholz** » 02 Oct 2015, 22:42

I've purchased a set of coated zimmerman rotors for the rear wheels with some OEM pads. Every other time I've done brakes on other vehicles I've given the rotors a good cleaning but the instructions included seem to indicate not to 'remove the coating.' I've gotten mixed information it seems from perusing other threads so I ask you this: Should I clean these before throwing them on in the morning?

Post by **kahl** » 02 Oct 2015, 23:52

I've put on several sets of these rotors and out of habit I have always cleaned the brake pad face of the rotors with brake cleaner with no ill effects.

Cees Klumper · Post by **Cees Klumper** » 03 Oct 2015, 10:19

I installed a pair of Zimmerman rotors last year on my S80. This type of coating doesn't just wipe off with brake cleaner. I left it on as, as the instructions say, it protects the parts of the discs that the pads don't touch. Then I faithfully followed the beak-in instructions: successively more vigorous braking episodes, allowing the discs to cool off in between. So far I couldn't be happier with the braking performance. So my advice is to just follow the instructions.

Post by **polskamafia mjl** » 03 Oct 2015, 16:01

I would be inclined to follow the directions that came with the rotors.

Post by **regent** » 03 Oct 2015, 17:01

polskamafia mjl wrote:...follow the directions that came with the rotors.

Good thought!

Scholz · Post by **Scholz** » 03 Oct 2015, 23:00

polskamafia mjl wrote:I would be inclined to follow the directions that came with the rotors.

and that's what was done.

job went without a hitch. takes longer to lift the car and remove the wheels than to replace the pads and rotors.