Diesel car engine Mercedes C-Class (W202)

Technical characteristics of diesel engines
Diesel engine with a working volume of 2.0 l 1. Oil level indicator; 2. Fan; 3. Top dead center mark; 4. Crankshaft belt pulley; 5. Oil pump drive chain; 6. Oil pan; 7....

Removal and installation the engine
Removal 1. To lift the hood, pull the locking lever (3) on the left in the direction of the arrow and lift the hood slightly so that the locking lever is not locked....

Engine ventilation
Engine ventilation is necessary to prevent harmful excess pressure from occurring in the crankshaft housing. Since the piston rings cannot seal tightly enough,...

Engine removal (cars with air conditioning)
Warning! Do not open the air conditioner coolant circuit, as the liquid contains substances that can cause frostbite when in contact with the skin. When removing the...

Lower Engine Compartment Cover — Removal and Installation
Caution: When removing and installing, do not damage the surface of the protective material of the cover. Removal 1. Raise the car. 2. Remove the front cover (1),...

Chain tensioner — removal and installation
Noises occurring during chain operation may be caused by faulty tensioner operation. Disassemble and check it. Replace the tensioner as a set if necessary. The chain...

Camshaft (2.0 L engine)
The camshaft is removed upwards with the cylinder head installed. Attention! If the timing parts are to be used again, they must be installed in their original places....

Camshaft (2.2/2.5L engine)
The camshafts are located in a separate housing in the cylinder head. The opposite bearings of the intake and exhaust camshafts have a common cover that covers both...

Cylinder head (2.0L engine)
Cylinder Head Bolt Locations Remove the cylinder head only when the engine is cool. The exhaust manifold is not removed. A defective cylinder head gasket can be...

Cylinder head (2.2/2.5L engine)
Cylinder head bolts (2.5L engine) A – flange bolt M 10x115 B – bolt with flange M 10x102 a – universal bolt M 8 x 50 (chain case) b – bolts M 8 x 80 (for fuel filter)...

Oil-reflecting caps (2.0 L engine)
Sign of wear on valve stem seals (oil deflector caps) – high oil consumption. The caps can be removed even with the cylinder head installed. In this case, a lever pusher...

Valve stem seals (2.2/2.5L engine)
High oil consumption is an indicator of worn out oil seals. The seals can be removed with the cylinder head installed. However, this requires compressed air and a lever...

Cylinder head cover (2.2 / 2.5L)
The cylinder head cover is removed, for example, to disassemble the injectors, camshaft or cylinder head. Removal 1. Disconnect the battery ground cable. Attention! This...

Hydraulic disc tappets
All diesel engines are equipped with hydraulic disc tappets. This reduces valve train noise and eliminates the need for valve clearance adjustment as part of...

Valves — removal and installation
2.0L engine Caution! If the valve control parts are to be reused, they must be installed in their original locations. To avoid mixing up the parts, make a panel to store...

Directional valves
1. Remove the valve. 2. Check the fit of the valve stem oil seal (205). If the seal does not fit tightly against the valve stem, replace the valve guide (204) (work for...

Valve seats in the cylinder head
2.0L engine Valve seat Inlet valve Exhaust valve Valve seat width 1.2 – 1.7 mm 1.7 – 2.0 mm Valve seat angle 45° 45° Correction angle from above 15° 15° Correction angle...

Cylinder head and engine block
1. Remove the cylinder head. 2. Check the cylinder head/engine block for deflection in length and width using a ruler and a set of templates. The deflection along the...

Checking the compression in the cylinders
Compression testing allows you to draw conclusions about the condition of the engine. It will help determine whether the valves or pistons are (piston rings) in normal...

V-ribbed belt — removal and installation
V-belt (standard design) 1. Tension roller 2. Crankshaft belt pulley 5. Three-phase current generator belt pulley 7. Power steering pump belt pulley 8. Coolant pump belt...

Tensioner for V-ribbed belt
Removal 1. Remove the fan hydraulic clutch. Please note: The union nut has a left-hand thread. 2. Remove the fan shroud. 3. Remove the V-ribbed belt. 4. Use a...

Diagnostics of diesel engine faults
If the engine does not start, then it is necessary to localize the malfunction. A number of conditions must be met for the engine to rotate: no errors in driving the...

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TEXTHTMLBB Code

190 (W201) (1982-1993)