Repair of diesel engines of the car Mercedes Vito 2 (W639)
General information The OM 646 diesel engine is the result of the modernization of the OM 611 engine, which was widely used in previous car models «Mercedes Benz» and was installed on...
Vehicle Equipment Option Codes Options Option content MC1 Diesel engine OM646 DE 22LA, 65 kW (83 hp), at 3800 rpm MS2 Diesel engine OM646 DE 22LA, 80 kW (109 hp), at 3800 rpm MSZ Diesel engine OM646...
Engine Specifications Traction and speed characteristics VN 2.002 Design features and characteristics of engines A significant design difference is the use in engines installed in passenger...
Removal and installation of the power unit VN 2.003 1. Left engine mount 2. Right engine mount 3. Screw M8x130 mm for fastening the left support to the cylinder block, strength class 8.8 4. Screw for fastening...
Components and assemblies in the front of the engine VN 2. 039 1. Vacuum pump 2. injection pump 3. V-ribbed belt 4. coolant pump 5. Front cylinder head cover 6. V-ribbed belt tensioner 7. Oil filter screw cap 8. Power...
Checking the relative position of the camshafts 30.1. Check the mutual position of the camshafts. holes (IN) gear wheels (1) And (2) should be opposite each other (see fig. VN 2.047), Fixing the relative position of...
Cylinder head repair Repair of the cylinder head consists of a complete disassembly and inspection of the condition of the parts: cylinder head housing (mating plane cylinder head); valves...
Removal and installation of valves 1. Install the cylinder head (7) onto a flat surface. 2. Install the spring compressor (9) on the cylinder head. 3. Using fixture (9) compress the valve springs so that...
Valve guide bushings If the gap in the pair of bushing - valve is too high (usually the maximum allowable value is 0.1mm). The usual clearance in a new engine is 0.03-0.07 mm. VN 2.063 Max...
Disassembly and repair of the lower part of the engine To provide access to the details of the KShM, the following steps should be performed. Remove all parts of the accessory drive belt tensioner. Remove the oil pan. Remove...
Removal and installation of the crankshaft 1. Remove the connecting rod bearing caps. 2. Remove the main bearing caps. 3. Remove the crankshaft from the bed. 4. Remove the pistons with connecting rods as an...
Crank mechanism (KShM) — composition VN 2.069 1. Crank hall (A 646 031 07 01) replaced subsequently by (А646 031 04 01 +001 А108 991 00 67) As an option: (A 611 031 05 01 001 001 001) 1. Crankshaft (A 611...
Checking and repairing connecting rods Replacing the bushing of the upper head of the connecting rod To replace the worn bushing of the upper head of the connecting rod, it should be pressed out and a new one...
Front cylinder block cover VN 2.092 1. Front cover (A 646 010 09 33) 2. Centering sleeve (A 611 997 00 10) 3. Screw cap 4. O-ring 5. O-ring 6. Screw M10x1 7. O-ring 8. Oil nozzle for lubricating...
Installation of a back cover of the block of cylinders VN 2.094 2. Screws of fastening of a back cover to the block of cylinders (8 Nm) 3. Bolts securing the oil pan to the rear cover to the cylinder block. 1. Mounting...