Gasoline engine (I4 and V6) Mercedes C-Class (W203)
Specifications of gasoline and diesel engines Note. Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold. Common parameters Designation 111 and 271...
Checking compression in the engine cylinders 1. Compression gives an idea of the state of the engine. Test results show if valves and pistons are OK (piston rings), or they are worn out. In addition, the test...
Checking the engine with a vacuum gauge Using a vacuum gauge, you can get information about the condition of the engine and determine that the cylinder head gasket is broken, the power system is damaged, the...
Design of 4-cylinder petrol engines 4-cylinder petrol engine 111 1 - Cylinder head cover; 2 - Air filter; 3 - Compressor; 4 - V-belt; 5 - Air cooler; 6 - Generator; 7 - Engine cover 1, top; 8 - Air intake;...
Removal and installation of a head of cylinders (I4) Note. Since this work requires a certain amount of experience, only the basic provisions necessary for the work of an experienced mechanic are described. Removing 1....
Removal and installation of the chain tensioner (I4) The chain tensioner is screwed into the cylinder head on the right side. The tensioner is supplied with lubricating oil through a hole in the cylinder head. Removing 1....
Replacing timing chains and installing valve timing (I4) Timing chain drive diagram (timing) and steps of the valve timing setting procedure. Inline petrol engine 111. Special tools: Camshaft locking tool - No. 111589031500....
Checking the phase setting of the camshafts (I4) Examination 1. Remove the cylinder head cover, refer to the appropriate section. 2. Turn the crankshaft to the position of the piston of the first cylinder 25±2°after...
Removal and installation of the V-belt (I4) Compressor drive belt 1 - Tension roller; 2 - Crankshaft; 3 - Deflecting roller; 4 - Compressor; 5 - Generator Removing 1. Remove fan cover or air filter depending on...
Design of 6-cylinder petrol engines The main elements of the engine 112 are shown in the illustrations. 3 valves applied (2 intake and 1 exhaust) and 2 spark plugs per cylinder. A special device allows you...
Removal and installation of a head of cylinders (V6) Removing 1. Remove the engine cover or air filter vertically from the cylinder head covers. 2. The air intake system must not be disassembled. 3. Fix the V-belt...
Removal and installation of the V-belt (V6) V-belt laying diagram. Engine 112 1 - Crankshaft; 2 - Deflecting roller 1 or compressor; 3 - Power steering pump; 4 - Deflecting roller; 2, 5 - Generator; 6 - Coolant...
Engine lubrication system Engine oil circuit diagram The illustration is informative and may not fully correspond to the model in question. 1 - Oil channel of the cylinder head; 2 - Main oil...
Oil pressure check Examination 1. Check the engine oil level, refer to Section Checking fluid levels, leak control . 2. Warm up the engine to operating temperature. To do this, start the...
Removal and installation of the oil level sensor Removing 1. Remove the bottom cover of the engine compartment, refer to Section Checking the engine with a vacuum gauge . 2. Drain the engine oil or suck it out, refer...