Please understand that this pulley damper is an OEM German part and IS NOT the Chinese made Dorman product seen on Amazon.com and on eBay. As with all things in life.....You get what you pay for. Corteco is the OEM supplier to Mercedes Benz.
Not for vehicles with accessory rear A/C having a 2nd A/C compressor, which is driven by a second belt, a V-belt.
These vehicles require a special two-belt pulley that is shown below.