2009 Mercedes-Benz C230 Service and Repair Manual

This factory service and repair manual for the 2009 Mercedes-Benz C230 applies to a gasoline V6 sedan. The engine displaces 2.5L, breathes without forced induction and uses dual overhead camshafts; no other engine is listed. Buyers had a choice of two trims, Base or 4Matic, both on the four-door sedan body, and this manual covers either one.

Engines covered

• 2.5L V6 — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• 4Matic

Known issues on the 2009 C230. A good repair on a 2009 C230 starts with a sound diagnosis, and the manual's diagnostic routines cover engine management and body electrical systems on both the Base and 4Matic trims. Procedures cover the 2.5L V6's valvetrain, cooling and fuel system work, supported by specifications and torque values, while chassis procedures deal with brakes, steering and suspension. Wiring diagrams show how the four-door sedan's circuits are laid out.