M112 E32 3.2l Engine Problems and Reliability. 1. High oil consumption. The cause of the severe oil consumption is often the wear of valve stem seals. The next variant is contaminated ventilation of crankcase gases. 2. Oil leaks. The weak point in the M112 is the seal of the oil heat exchanger.
Mercedes Secondary Air Pump - Bosch 0001405185 C230, C280, C300, C350, CL550, CLK350, CLK550, & more