Car V8 gasoline engine Mercedes S-Class (W140)

Removal and installation of the engine
Removing Removal and installation of the engine 1 - Radiator of the cooling system; 2 - Fan; 3 - Compressor drive belt; 4 - Air filter; 5 - Support post; 6 - Lambda...

Cylinder Head Covers — Installation Details
Details of installation of covers of heads of the block of cylinders 1, 1a, 14, 14a - Caps; 4, 5 - Crankcase ventilation pipes; 6, 6a - Cylinder head covers; 7, 7a -...

Removal and installation of the inlet pipeline
M119.97 series motors Removing Details of installation of the inlet pipeline (M119.97 engines) 1. Remove the air filter. 2. Drain the coolant. 3. Disconnect the wiring...

Removal and installation of a final collector
Left exhaust manifold Removing 1. Remove the bottom motor guard. 2. Remove the cross tube between the intake manifold and exhaust manifold. 3. Remove the fan shroud. 4....

Removal and installation of heads of the block of cylinders
Removing The order of tightening the cylinder head bolts 1. Raise the hood and place it vertically. 2. Disconnect the negative cable from the battery. 3. Drain the...

Removing and installing timing chain covers
Removing Timing chain cover installation details (1 of 3), bringing the engine to a position of 45°before the TDC of the piston of the first cylinder (arrow) 1, 1a, 2 -...

Timing Chain Replacement
Note. See also Section Timing drive - general information, component maintenance . Removing the timing chain 01 - Rods; 04, 05 - Wedges; 2 - Upper guide lever; 4 -...

Checking the valve timing
Note. See also Section Timing drive - general information, component maintenance . Checking the valve timing 01 - Digital instrument 02 - Retainer 03 - Probe 04 -...

Timing drive — general information, component maintenance
Note. The camshafts can be turned without the risk of the valves colliding with the pistons when the crankshaft is brought to the position 45°before TDC of the first...

Removal and installation of the valve timing regulator
Valve timing regulator 1, 3, 15 - Bolts; 2, 7, 12 - Covers; 4 - Fittings; 6 - Nut; 13 - Right sprocket; 14 - Adjusting piston; 14a - Conical spring; 16 - Flange; 17 -...

Removal and installation of camshafts
Note. see also Section Timing drive - general information, component maintenance . Location of camshafts 1, 1a, 2, 2a - Upper sliding arms; 5, 6, 7, 8 - Camshafts; 10,...

Checking and adjusting the control position of the camshafts
Examination 1. Set the piston of the first cylinder to the position 45°before TDC. 2. Block the camshafts through the holes in the first bearing caps with four pins (1)...

Removal and installation of valves
Removing Valve installation details 2 - support post; 3 - Hydraulic compensator; 5 - Thrust piece; 6 - Forceps; 7 - Caliper; 8, 23 - Bolt; 9 - Push lever; 14 - Crackers;...

Replacing valve guides
Dimensional characteristics of valve guides are given in Specifications . Non-ferrous guide bush (M 104.990 engines of the first version)

Replacing valve seat rings
Valve seat dimensions are given in Specifications . Valve seat installation details

Removal and installation of pistons
Removing 1. Unscrew the connecting rod caps and remove the pistons together with the connecting rods. 2. Check the connecting rod cap bolts. 3. Using a screwdriver,...

Designation and dimensions of pistons
The designations on the piston and cylinder must match. Numerical and alphabetic designations, as well as dimensional characteristics of pistons and cylinder diameters...

Checking the condition of the connecting rods
Dimensional characteristics of connecting rods are given in Specifications . Connecting rod dimensions

Checking the condition of the crankshaft
M119.97 series engine with mounting bearing Installation details of the crankshaft with the installation bearing 1, 3, 19, 21, 25 - Bolt; 2, 28 - Gaskets; 4, 22 -...