: Detailed specifications for petrol (2.0L M111, 2.3L M111, 2.8L VR6) and diesel (2.2L OM 611) engines. This covers fuel and exhaust systems, lubrication, and cooling. Transmission & Drivetrain
The (under the driver's seat) is the heart of the W638’s electrical system. When it fails, the van won’t start, lights flicker, or wipers activate randomly. The workshop manual contains the full circuit diagram to bypass or repair this module instead of buying a $500 replacement. mercedes vito w638 workshop manual