Brakes are squealing & I need to replace. Is this something a DIY'er can handle? Do I need any special tools? If so which ones? Also, need to tighten the parking brake. It goes right to the floor & pretty sure it doesn't do anything. I'm handy so I'm sure I can do. Comments please.

Squealing Mercedes brakes are usually aftermarket pads that are a harder composition. Use MB pads and the grease for the back of each pad. Most times the rotor has worn undersize so expect to replace the rotors as well. Special tools?? metric wrenches and shop rags. Crack open each caliper bleed nipple to retract the pistons fully into the caliper by use of a narrow screwdriver between the pad and the rotor. The parking brake is simply a small drum brake assembly inside the rear rotors. Remove one lug bolt and slowly rotate the wheel till the access hole to the star adjuster is visable. Insert long narrow screwdriver into hole to rotate the star wheel till the shoes drag slightly on the drum. Reinstall lug bolt. Adjusting the park brake cables very seldom necc on an MB. I think you and I and maybe 5 other people use the parking brake!!

__________________
81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.

Me and my dad changed the rear brakes on my 300SEL in about 10-15 minutes. The hardest part was initially trying to figure out to get that pin out on the right side. We had never did brakes on one of these before. It was really easy and no special tools required.