The OM646 requires high-quality synthetic oil meeting (low ash formulas for vehicles equipped with Diesel Particulate Filters). Warm up the engine to operating temperature. Raise the vehicle or remove the lower plastic undertrays.
Mercedes-Benz Approval MB 229.31 or MB 229.51 (Low-SAPS oil required for models equipped with a Diesel Particulate Filter / DPF). Viscosity: 5W-30 or 5W-40 depending on ambient climate. Fuel Filter Replacement
The OM646 utilizes a duplex timing chain located at the front of the engine. Unlike rear-timed modern engines, servicing this is highly accessible but requires strict alignment. Mercedes Workshop Manual Om646 Engine
: The OM646 is famous for surpassing 300,000 miles on original internals. This manual provides the precise torque specs and technical data needed to keep that streak alive.
: While the engine is durable, it has known quirks like EGR valve clogging and injector issues. The manual offers clear removal/installation procedures to address these without a trip to the dealership. The OM646 requires high-quality synthetic oil meeting (low
: Inspect and correct levels for coolant, power steering, and washer fluid. Brake Inspection : Visual check of pads and discs for wear.
All values in Nm unless stated.
The Mercedes-Benz OM646 engine is a legend in the world of compact diesel powerplants. Produced from 2003 to 2010, this 2.1-liter, 4-cylinder common-rail diesel engine powered a vast array of vehicles, including the , the E-Class (W211) , the Sprinter (W906) , and the Viano/Vito .
The Mercedes-Benz OM646 engine is a diesel engine that was produced from 1973 to 1985. It was a 2.4-liter, 5-cylinder engine that was used in various Mercedes-Benz models, including the 240D, 300D, and 250D. This engine was known for its reliability, durability, and fuel efficiency, making it a popular choice for many drivers. Mercedes-Benz Approval MB 229
Insert the specialized Mercedes-Benz locking pins through the camshaft gears into the cylinder head backing plate to lock them in place. 5. Common Troubleshooting and Repairs Black Death (Injector Copper Washer Leakage)