The 2002 Mercedes-Benz C320 features the M112 3.2L naturally aspirated V6 engine producing 215 horsepower and 229 lb-ft of torque. This aluminum engine uses a single overhead cam design with three valves per cylinder and variable valve timing. The M112 is known for its smooth operation and decent fuel economy for its era, achieving approximately 20 mpg city and 26 mpg highway. It’s paired with Mercedes’ 5G-Tronic five-speed automatic transmission and features electronic throttle control and sophisticated engine management systems typical of Mercedes engineering.

The 2002 C-Class shares most parts with the W203 generation spanning 2001-2007. Engine components from the M112 3.2L are compatible across C320 models from 2001-2005, and many parts interchange with other Mercedes models using the same engine including E320 and ML320. Body panels, interior trim, and electrical components are generally compatible within the 2001-2007 model years, though minor trim differences exist between early and late production. Suspension components, brakes, and drivetrain parts have excellent compatibility throughout the W203 generation, making parts sourcing relatively straightforward.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The M112 3.2L V6 is generally reliable when properly maintained, but has some significant weak points. The balance shaft gear failure is the most serious concern, often requiring expensive engine rebuilds. Regular oil changes every 5,000 miles and using quality synthetic oil helps prevent premature wear. The engine responds well to preventive maintenance including regular air filter changes and fuel system cleaning. While not as bulletproof as some Toyota or Honda engines, with proper care and addressing known issues proactively, these engines can provide 200,000+ miles of service.