V6 petrol engine (DOHC) Mercedes E-Class (W124)

Engine specifications
A DOHC engine is an engine with two camshafts mounted in the cylinder head. Engine code: – 2.8 l engine 104,942 – 3.0 l engine 104,980 – 3.2 l engine 104,992 Working...

General engine data
An engine with six cylinders arranged in a row with two camshafts mounted in the cylinder head. Each camshaft controls only the intake or exhaust valves. The crankshaft...

Repair operations on the engine installed in the vehicle
The following operations can be performed without removing the engine from the vehicle: removing and installing the cylinder head; removing and installing the drive...

Top dead center (TDC) of the piston of the first cylinder
Using a 4mm drill to check that the camshaft is installed correctly The top dead center of a piston is the point through which each piston passes as the crankshaft...

Cylinder Head Cover — Removal and Installation
Models with cis fuel system Removal Removal the distributor housing on models with the CIS fuel injection system Unscrewing the spark plug cover mounting screws Removal...

Crankshaft Pulley/Vibration Damper and Hubs
Several modifications of crankshaft pulleys / torsional dampers and hubs are installed on the engines. On early models, a crankshaft pulley / torsional vibration damper...

Timing Chain Covers — Removal and Installation
Caution: When installing the upper timing chain cover, it is necessary to use sealant and new gaskets. Removal Unscrewing the distributor cap mounting bolts on models...

Upper timing chain cover (HFM fuel injection models)
Caution! Use a counter-sink hammer to remove the chain guide installation pin. Use sealant and new gaskets when installing the upper drive chain cover. Removal 1. Remove...

Lower timing chain cover — removal and installation
Caution! When installing the lower cover, it is necessary to use sealant and a new O-ring for the coolant pipe. It is also advisable to replace the front crankshaft...

Checking and replacing the drive chain
Examination 1. Remove the upper drive chain cover. 2. Remove the cylinder head cover. 3. Turn the engine crankshaft using the crankshaft pulley mounting bolt and check...

Drive chain tensioning mechanism
Caution: When installing the tensioner cap nut, a new sealing ring must be used. Installing a new chain When installing a new chain, keep the chain strands taut at all...

Camshaft and crankshaft sprocket
Sprocket of the camshaft controlling the exhaust valves Removal Unscrewing the camshaft sprocket mounting bolts Removal the sprocket from the camshaft that controls the...

Chain Tensioners — Removal, Checking and Installation
Upper drive chain guide Removal Removal the upper drive chain guide from the mounting pins 1. Remove the cylinder head cover. 2. Remove the drive chain tensioner...

Tensioner Shoe — Removal, Checking and Installation
Removal Removal the drive chain tensioner shoe 1. Set the piston of the first cylinder to TDC and check that all the timing marks are aligned with the pointers. 2....

Camshaft adjustment mechanism
Removal Unscrewing the camshaft bearing mounting bolt Removal the bearing from the camshaft Unscrewing the nut from the front end of the camshaft Removal the washer from...

Camshafts and tappets — removal, inspection and installation
Removal Location of markings on the camshaft bearing cap Location of camshaft bearing caps that need to be unscrewed and removed first Location of thrust half rings...

Checking and adjusting the position of the camshafts
Examination 1. Remove the cylinder head cover and radiator fan shroud. 2. Set the piston of the first cylinder to TDC and check that all the timing marks are aligned...

Cylinder head — removal and installation
Caution! A lifting mechanism must be used to remove the cylinder head. When installing the cylinder head, a new head gasket and a new camshaft bearing mounting bolt that...

Oil pan — removal and installation
Removal Location of the lower engine mount mounting bolt Location of oil cooler pipe mounting bolts to oil pan 1. Remove the ground cable from the battery. 2. Unscrew...

Oil pump chain and drives — removal, inspection and installation
Oil pump Removal Unscrewing the bolt securing the oil pickup tube to the bracket Unscrewing the oil catcher plate mounting bolt Location of bolts securing oil pump and...

Replacing the sealing rings
Removal the gasket from the drive plate Removal the drive plate on automatic transmission models Measuring the length of the drive plate mounting bolt O-ring for...

Oil radiator — removal and installation
Removal Removal the oil cooler mounting bracket Removal the bracket together with the oil cooler from under the wheel arch Removal the oil cooler mounting bracket 1. The...

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TEXTHTMLBB Code

W210 (1996-2002)

W124 (1984-1995)