Engine Specifications The SOHC engine is an engine with a single camshaft mounted in the cylinder head. Engine code: – engine 2.6 l 103.940 – engine 3.0 l 103.980 or 103.983 Working volume: –...
General engine data Engine with six cylinders arranged in a row and one camshaft mounted in the cylinder head. The crankshaft is supported by seven main bearings. The axial play of the...
Repair operations on the engine installed in the car The following operations can be performed without removing the engine from the vehicle: removal and installation of the cylinder head; removal and installation of the...
Top dead center (TDC) of the piston of the first cylinder Piston top dead center is the point through which each piston passes as the crankshaft rotates. Each piston reaches TDC at the end of the compression stroke, then again...
Cylinder head cover — removal and installation Removing The location of the retaining bracket that must be pressed to remove the casing of the ignition distributor 1. Remove the ground wire from the battery. 2. Open...
Crankshaft pulley/vibration damper and hub Crankshaft pulley / vibration damper Removing 1. Remove the ground wire from the battery. 2. If equipped, remove the lower engine mudguard. 3. Remove the radiator and...
Drive chain covers — removal and installation Attention! When installing the timing chain cover, use sealant, a new gasket, and a new coolant pipe O-ring. It is also advisable to replace the front camshaft sealing...
Lower drive chain cover — removal and installation Removing Location of the coolant supply pipe and engine lifting eye bolt 1 - pipe fastening bolt; 2 - pipe for supplying coolant; 3 - nut; 4 - bolt Elements of fastening...
Drive chain — check and replace Examination 1. Remove the top drive chain cover. 2. For the crankshaft pulley bolt, turn the engine crankshaft and check the condition of the chain along the entire...
Drive chain tensioner Removing Attention! When installing the tensioner cap nut, a new O-ring must be used. Drive chain tensioner 1 - cap nut; 2 - sealing ring; 3 - spring; 4 - bracket; 5 -...
Camshaft and crankshaft sprockets Camshaft sprocket Removing 1. Remove the top drive chain cover. 2. Set the piston of the first cylinder to top dead center and check that all the alignment marks are...
Damper and drive chain tensioner shoe Drive chain guide Removing The location of the fastening brackets connecting the outer and inner parts of the chain guide 1. Set the piston of the first cylinder to top...
Valve drive, tappets and camshaft Attention! Parts of the valve drive and oil sprayer have many modifications, therefore, when replacing them, it is necessary to consult a Mercedes-Benz representative....
Cylinder head — removal and installation Removing Using an inertia hammer to remove the top locating pin of the drive chain guide Unscrewing the intake manifold support bracket bolt An arrangement of a collar...
Oil pan — removal and installation Attention! When removing the oil pan, a lifting mechanism must be used. When installing the oil pan, it is necessary to use a new gasket and new exhaust system mounting...
Oil pump — removal, inspection and installation Removing The location of the oil pump mounting bolts 1 – bolts of fastening of the oil pump; 2 – a bolt of fastening of an oil receiving pipe to an arm 1. Remove the oil...
Replacing the oil pump drive chain Attention! When replacing the oil pump drive chain, the oil pump sprocket must also be replaced. Attention! When removing the chain, use an emery wheel or vulcanite to...
Replacement of O-rings Camshaft front O-ring 1. Remove the radiator fan shroud and place it on the fan impeller. 2. Press fixing brackets and remove a casing of the distributor of ignition....