Gasoline car engine Mercedes C-Class (W202)

Technical characteristics of gasoline engines
Engine displacement 2.2 l 1. Double roller chain; 2. Oil filling cap; 3. Cylinder head cover; 4. Cylinder head; 5. Piston; 6. Flywheel; 7. Cylinder; 8. Flywheel 9. Oil...

Engine Identification Number
Based on this number, the car can be identified. It includes model and body type data. The identification number is stamped in front of the front right seat on the...

Removal the engine
The engine is removed upwards together with the gearbox using a crane. Never lower the engine downwards using a jack, which can cause serious damage to it. Since some...

Engine installation
1. Check engine mounts, coolant and oil hoses, and fuel lines for porosity and cracks; replace if necessary. 2. Check the crankshaft radial bearings and clutch release...

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, hot gases...

Engine removal (cars with air conditioning)
Warning! Do not open the air conditioner coolant circuit. The coolant contains substances that cause frostbite when in contact with the skin. The engine can also be...

Lower Engine Compartment Cover — Removal and Installation
Removal 1. Raise the car. 2. Unscrew the 6 cover mounting bolts (arrows) and remove the bottom cover. Installation 1. Attach the cover and tighten the bolts. At the same...

Casting Port Covers (6 Cylinder Engine)
The cast holes are located on the side of the engine block. They are connected to the coolant channels and are covered with metal caps. If the coolant freezes at low...

Chain tensioner — removal and installation
Attention! If the tensioner is loosened on the hexagon, it must be removed, otherwise the control chain will be excessively tightened when screwed in. Removal 4-cylinder...

Cylinder Head Cover (4-cylinder engine)
Removal 1. Remove the air cleaner cross pipe by releasing the sleeve clamps. 2. Remove the engine ventilation hose (22) from the cylinder head housing, after loosening...

Cylinder head cover (6-cylinder engine)
Removal 1. Remove the air filter. 2. Disconnect the engine ventilation hose (12) from the cylinder head housing, after loosening the hose clamp (11). 3. Detach the cover...

Cylinder head (4-cylinder engine)
Cylinder head bolts Remove the cylinder head only when the engine is cold. The exhaust and intake manifolds remain connected. A defective cylinder head gasket can be...

Cylinder head (2.2L engine)
1. Install the camshaft adjuster. To do this, screw on the flange shaft (16) with new bolts (spanner size T40). Tighten the bolts as follows: first with a torque wrench...

Cylinder head (6-cylinder engine)
The cylinder head is disassembled only when the engine is cool. The intake and exhaust manifolds remain connected. A defective sealing gasket can be identified by a...

Camshafts (4-cylinder engine)
Caution! If the valve control parts are to be reused, they must be installed in the same locations. To avoid confusion, it is recommended to make a suitable panel for...

Camshafts — Main Position Adjustment (4 Cylinders)
Camshafts 1. Wrench (for turning camshafts); 73. Control chain; 75. Intake camshaft gear 76. Exhaust camshaft gear; 77. Exhaust camshaft; 78. Intake camshaft; 79....

Camshafts (6-cylinder engine)
Caution! If the valve control parts are to be used again, they must be installed in the same places. To avoid mixing up the parts, we recommend making a panel for their...

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

Valve stem seals — removal and installation
Worn oil seals can cause increased oil consumption. The seals can be removed with the cylinder head installed. However, this requires compressed air and a lever ejector...

Valves — removal and installation
Removal Caution! If the valve control parts are to be used again, they must be installed in their original locations. To avoid mixing up the parts, make a panel for...

Directional valves
When repairing a cylinder head with leaky valves, it is not enough to treat or replace the valve and valve seat. It is necessary to check the wear of the valve guides....

Valve seats in the cylinder head
A. Exhaust valve seat ring (1) B. Inlet valve seat ring (2) Valve seats with signs of wear or burning can be reworked if the corrective angle and seat width are...

Checking the compression in the cylinders
Compression testing allows you to draw conclusions about the condition of the engine. When checking it, you can determine whether the valves or pistons are normal...

V-belt (4-cylinder engine)
1. Tension roller; 2. Crankshaft belt pulley; 3. Belt pulley of the cooling compressor (only with air conditioning); 4. Three-phase generator belt pulley; 5. Power...

V-belt (6-cylinder engine)
Removal 1. Pull the locking tab (1) out of the fan shroud ring (2). Turn the shroud in the direction of the "open" arrow and remove by turning the fan impeller. 2....

Diagnostics of malfunctions of gasoline engines
If the engine does not start, you need to determine the cause of the malfunction. In order for it to start at all, two basic prerequisites must be met: the fuel-air...

General notes on engine overhaul
This section covers engine overhaul operations, including cylinder head and cylinder block components. The section includes both recommendations on how to organize and...

Repair work without engine dismantling
Many basic repairs can be performed without removing the engine from the vehicle. Before starting any work, it is highly advisable to wash the engine compartment and...

Engine overhaul
It is not always easy to come to a conclusion about the advisability of an engine overhaul, since it is necessary to rely on a number of indicators. High mileage is not...

Alternatives to Engine Overhaul
When performing a major overhaul on your own, there are various options. The decision to replace the cylinder block, connecting rod and piston group, and crankshaft...

Engine dismantling
If a decision has been made to dismantle the engine for major repairs or repairs of the main components, then certain preparatory measures must be carried out. It is...

Engine disassembly sequence
The easiest way to disassemble the engine and perform all types of work is on a portable stand. Before installing the engine on the stand, it is necessary to remove the...

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TEXTHTMLBB Code

190 (W201) (1982-1993)