Yeah, but, Benzes can have all kinds of horrid vacuum problems caused by leaks in the vacuum system (considering that practically everything in the whole damned car is controlled by vacuum....locks, transmission, etc, etc) that can make one's day a miserable one.

From your posts on the BMW, I surmise that you bought a 528e that had been neglected and in some need of TLC. Who here agrees that a neglected and ill-treated Mercedes would also require a good deal of repairs and parts thrown at it to bring it up to snuff? A lot of reliability concerns in older used cars can be attributed to previous owner treatment of said used car.

-Sam