The Mercedes-Benz W123 E-Class, produced from 1976 to 1985, represents a pinnacle of robust engineering and enduring quality. Available as a 4-door Sedan, 5-door Estate, or 2-door Coupe, this model is celebrated for its exceptional build quality, legendary durability, and a comfortable, refined ride. Particularly renowned is the OM617 turbo-diesel engine, famed for its longevity and efficiency. Competing in the mid-size executive segment, the W123 offered strong safety features for its era, including crumple zones and a reinforced passenger cell, solidifying Mercedes-Benz's reputation for reliable and well-built vehicles.

This comprehensive factory service manual provides in-depth coverage for all repairs and maintenance procedures for the 1985 Mercedes-Benz W123 E-Class. It details every system, from the powertrain, including gasoline and diesel engines and transmissions, to the chassis, electrical systems, and body. The manual includes scheduled maintenance, detailed diagnostics and troubleshooting guides, step-by-step repair and overhaul instructions, and specific adjustments. With extensive technical depth, including wiring diagrams and torque specifications, this manual is an essential resource for owners and technicians seeking to maintain and repair their W123 E-Class.