2003 Mercedes-Benz C320 Service and Repair Manual

This factory service and repair manual for the 2003 Mercedes-Benz C320 takes in three body styles, a 4-door wagon, a 4-door sedan and a 2-door coupe, and four trims: Base, 4Matic, Classic and Elegance. One engine unites them, the 3.2L V6 with single overhead camshafts, natural aspiration and gasoline fuel. The manual covers that variety of bodies along with specifications for the shared engine.

Engines covered

• 3.2L V6 — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door wagon
• 4-door sedan
• 2-door coupe

Trims covered

• Base
• 4Matic
• Classic
• Elegance

Known issues on the 2003 C320. The 18 complaints about the 2003 C320 split mainly between the electrical system and power train, 5 apiece, with air bags close behind at 4. Of those, 2 complaints reported a crash, 2 reported an injury and 1 reported a fire. Separately, NHTSA logged 10 complaints against the 2003 C-Class line. NHTSA lists three recalls for certain 2003 C320 vehicles, centered on sunroof glass that might not stay attached to the car. Powertrain, air bag and electrical procedures appear with wiring diagrams, torque values and diagnostics.