2003 Mercedes-Benz CL230 Service and Repair Manual

This factory service and repair manual for the 2003 Mercedes-Benz CL230 covers the coupe's engine, body and chassis. Under the hood sits a supercharged 2.3L inline-four, DOHC and gasoline-fueled; around it, a 2-door coupe body; and the data names a single trim, Kompressor. The manual gives procedures, specifications and wiring diagrams for work on the intake side of the engine, circuits in the body harness, and brake and suspension wear.

Engines covered

• 2.3L inline-four — DOHC, supercharged, gasoline

Body styles covered

• 2-door coupe

Trims covered

• Kompressor

Known issues on the 2003 CL230. NHTSA filed three recalls against certain 2003 C230 models, a wider group. Two dealt with certain vehicles whose glass sunroof panel may not have been fastened properly and could separate. The third involved certain vehicles in which adhesive between the glass and the sliding roof frame could break down until the panel came away, which dealers address by checking the bond and replacing the sliding roof as needed. Owners of 2003 C230 models logged 51 complaints; the largest group, 19, concerns engine and engine cooling, followed by power train and the electrical system. Look to the roof, cooling and powertrain procedures, specifications and diagnostics in this manual.