A former owner catalogs the recurring failures: the rubber donut supporting the two-piece driveshaft tears out under hard throttle, the small brake pads wear quickly, and the suspension pump leaks. Camshaft wear is disputed, with one owner reporting a flat lobe on the right bank, another insisting M100s did not tend to suffer cam failures, and a third saying the cams wear only if the oilers are not upgraded.
Known wear points: driveshaft flex disc, brakes, camshaft
Mercedes-Benz 450SEL 6.9 · mechanical