Diesel engine V6 OM603 car Mercedes S-Class (W140)

Removal and installation the engine
Removal 1 - Pressure pump; 2 - Inlet pipe; 3, 7 - Decorative panels; 4 - Air cleaner cover; 5 - Air intake pipe; 6 - Engine wiring; 9 - Oil radiator; 10 - Power steering...

Air purifier — installation details
Air filter 90 - Air filter cover; 91 - Filter element; 94 - Cover guide; 98, 145 - Intake pipe; 102 - Air intake; 108, 153 - Bolts; 139a, 158 - Nuts; 144 - Clamp; 147 -...

Replacing the alternator drive belt
Removal Generator Drive Belt Installation Details 1. Loosen the fan shroud and secure it over the fan. 2. Remove the fan clutch. 3. Loosen the alternator drive belt. 4....

Removal and installation the alternator drive belt tensioner
Removal Generator Drive Belt Tensioner Installation Details A - Tensioner version 1; 355 - Lid; 356 - Bolt; 357 - Retaining Gasket; 360 - Tension Lever; 362 - Bushing;...

Exhaust manifold — installation details
Exhaust manifold 110 - Exhaust manifold; 110b - Metal insert; 111 - Hairpins; 112 - Washer; 113 - Nut; 114 - Gasket; 119 - Clamps; 171 - Cork; 173 - Tube

Timing Chain Cover — Removal and Installation
Removal 1. Remove the lower engine guard. 2. Remove the radiator. 3. Remove the fan clutch. 4. Remove the crankshaft pulley and hub 5. Remove the power steering pump or...

Camshaft — Removal and Installation
Camshaft Installation Details 70 - Cylinder head; 80, 81, 82 - Camshaft bearing caps; 84, 132, 190 - Bolts; 84a, 189, 237 - Washers; 125 - Cylinder head cover; 188 -...

Removal and installation the cylinder head
Removal Preparing to remove the cylinder head 1 - Inlet pipe; 3, 7 - Decorative panels; 4 - Exhaust pipe; 4a - Exhaust manifold; 5, 62 - Brackets; 6 - Exhaust gas...

Checking the camshaft reference position
Set the piston of the first cylinder to the TDC position. Check the reference position of the camshaft. The marks on the camshaft and the bearing cap must be aligned

Timing chain replacement
Note: See also Section Timing Drive - General Information, Component Maintenance Timing chain replacement 1 - Timing chain tensioner; 2 - Old chain; 3 - New chain; 4 -...

Timing Drive — General Information, Component Maintenance
Note: The timing chain can be replaced without disassembling the engine. Using the tools listed below, the new chain can be connected to the old one, threaded around the...

Timing Chain Tensioner — Installation Details
Note: See also Section Timing Drive - General Information, Component Maintenance . Timing Chain Tensioner Installation Details 1 - Timing chain tensioner; 2 - Compressed...

Removal and installation pistons
Removal Piston installation details 1. Remove the engine. 2. Remove the cylinder head. 3. Remove the tray. 4. Remove the oil pump. 5. Unscrew the connecting rod caps...

Checking the condition and replacing the connecting rods
Checking the connecting rods 1 - Connecting rod; 2 - Connecting rod cover; 3 - Bushing; 4 - Guide grooves; 5 - Connecting rod bolt; 6 - Balancing weights; 7 -...

Measuring cylinder diameters
Measurements of cylinder diameters are carried out in the longitudinal A and transverse B directions. Cylinder size measurement points A - Longitudinal direction; B -...

Removal and installation of cylinder liners
Extracting the cartridge case Installing the sleeve 1 — Cylinder block 2 — Sleeve Landing characteristics of cylinder liners D, D1 — Diameters for sleeve flanges D2 —...

Checking the condition of the crankshaft
Checking the radial clearance of the crankshaft 1. Install the main bearing caps. If the cap is installed correctly, its tab should be offset to the left when viewed in...

Removal and installation the crankshaft sprocket
Removal 1. Remove the bracket (262) and torsion spring (216) 2. Unscrew the bolt (259) with the gasket (258) and remove the oil pump bracket. 3. Remove the drive chain...

Oil Level Switch Sensor — Installation Details
Oil Level Switch Installation Details 11 — Cork 20 - Bolt 351 — Oil level sensor 365 — Sealing ring

Replacing the oil pump drive chain
Removal Replacing the oil pump drive chain 9 - Oil intake; 10 - Pallet; 24 - Oil pump; 25 - Oil pump sprocket 1. Remove the tray (10). 2. Remove the oil pump sprocket...

Removal and installation the oil pump
Removal 1. Loosen the bolt (259) and remove the oil pump sprocket. 2. Unscrew the bolt (266) securing the support (265) to the intake pipe. 3. Loosen the bolts (260)...

Removal and installation the oil filter housing
Removal Oil filter housing installation details 1 - Exhaust gas recirculation pipe; 2 - Tube to the oil pressure sensor (engines 601.911); 9 - Seals; 270 - Gasket; 271 -...

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W140 (1991-1998)