46.30_21b PDF

A service bulletin that addresses noises from the steering system and power steering pump in various Mercedes-Benz models. It provides details on the symptoms of the noise, which resembles that of a power steering pump under load, and offers a diagnostic procedure to isolate and resolve the issue. Included are instructions for testing the A/C compressor belt, along with illustrations for belt routing. The document also specifies part numbers and labor operation codes relevant for warranty claims.