2020 Mercedes-Benz OH 1624 Service and Repair Manual

This factory service and repair manual for the 2020 Mercedes-Benz OH 1624 concerns a stripped chassis built for non-school bus duty and powered by a 7.2L turbocharged diesel. That engine is an inline-six of 439 cubic inches, and it is the only one listed. The 52 L Euro V Blue Tec 5 is the single trim this year. Its injection and boost systems, driveline, brakes, steering and frame wiring are all covered by the manual.

Engines covered

• 7.2L inline-six (439 cu in) — turbocharged, diesel

Body styles covered

• bus (non school), stripped chassis

Trims covered

• 52 L Euro V Blue Tec 5

Known issues on the 2020 OH 1624. A large turbocharged inline-six diesel is the core of the 2020 OH 1624, and its fuel, air, cooling and oil systems take up much of the service work. The manual provides procedures and specifications for each, plus torque values for chassis fasteners at the axles, steering gear and suspension. Wiring diagrams trace the chassis harness, and diagnostic routines cover the engine and chassis systems on this single-trim bus chassis.