2005 Mercedes Benz CLK 320 Technical Service Bulletin # S-42_15-122 Date: 121213

Brakes - Brake Rotors Treated With Zinc Dust Spray Paint
Date: December 13, 2012
Order No.: S-B-42.15/122
Group: 42
SUBJECT: MY-All, Models 163, 164, 166, 170, 171, 172, 197, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 216, 218, 219, 220, 221, 230,
231, 245, 251, 463
Brake Disks Treated with Zinc Dust Spray Paint
Spray brake disk friction rings (Figure 1) of vehicles parked for an extended time with zinc dust spray paint. Apply it to various points on the outside
and inside throughout the brake rotors. By turning the wheel or moving the vehicle a few yards, the dust will spread across the entire friction ring.
This zinc dust is essential in protecting from corrosion and preventing shuddering and squeaking.
Parts Information