I use antisieze compound on the places where the pad rests on the caliper and where the pistons push on the pad. I have a bunch of mercedes grease, but I dont use it. Sometimes brakes will make noise no matter what you do...Look at my other posts about my troubles with brakes, I have tried everything. I use loctite high temperature antisieze, I think its nickel, but im not 100% sure.
No Benzes in the stable at the moment, but itching for one again.
Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 300E Amg Hammer 88k mi sold
1992 500E 156k mi sold