2011 Mercedes-Benz OC 500 Service and Repair Manual

This factory service and repair manual for the 2011 Mercedes-Benz OC 500 covers a one-door, cab-forward bus chassis built for non-school use and powered by a 12.8L inline-six. That engine, 781 cubic inches, is a turbocharged diesel, and no second engine appears for the year. Trim designation 1841 is the sole version. Procedures and specifications cover heavy-duty engine mechanical work, turbocharger service, diesel fuel delivery and the chassis systems beneath the body.

Engines covered

• 12.8L inline-six (781 cu in) — turbocharged, diesel

Body styles covered

• 1-door bus (non school), cab forward

Trims covered

• 1841

Known issues on the 2011 OC 500. A 12.8L diesel in a bus chassis puts its demands on cooling, charge air and fuel delivery, and the manual gives procedures and specifications for each of those systems. It also covers turbocharger checks, fuel system work and engine mechanical torque values, plus the brakes, axles, suspension and steering of the 1841 chassis. Wiring diagrams and diagnostics cover the electrical circuits running from the cab-forward driver station back through the body.