2012 Mercedes-Benz Boxer 40 Service and Repair Manual

This factory service and repair manual for the 2012 Mercedes-Benz Boxer 40 applies to the Base trim, which is the only one recorded for this year. Mechanically, the bus relies on a turbocharged diesel inline-four of 4.8 liters (293 cubic inches). The body is a two-door bus (non school) laid out cab-forward. The manual gives procedures and specifications for this engine and body.

Engines covered

• 4.8L inline-four (293 cu in) — turbocharged, diesel

Body styles covered

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

Trims covered

• Base

Known issues on the 2012 Boxer 40. Diesel engines with a turbocharger reward accurate work, and this manual is the reference for doing it on the 2012 Base bus. It sets out the engine and turbocharger procedures, lists specifications for the 4.8L four, and gives torque values for reassembly. When a fault appears, diagnostic steps narrow it down, while wiring diagrams trace the circuits running through the two-door, cab-forward body.