Car engine lubrication system Mercedes C-Class (W202)

Lubrication system — general description
For C-class engines, the use of multigrade oils is recommended. They are made in liquid seasonal oil (e.g. 15W) and therefore it is not necessary to change them...

Engine oil specification
In modern engines, only HD oils are allowed. They are alloyed oils, the lubricating properties of which are significantly improved by the addition of various chemical...

Scope of oils / viscosity class
Since the fields of application of neighboring SAE classes are the same, short-term temperature fluctuations should not be taken into account. It is permissible to mix...

Oil consumption
For internal combustion engines, oil consumption refers to the amount of oil that is consumed in the combustion process. Oil consumption should not be confused with oil...

Oil circuit (diesel)
Oil pump (240) sucks engine oil from the oil pan and pumps it into the main circuit oil filter (275). Between the discharge and suction area of the oil pump is an oil...

Oil pressure relief valve — removal and installation
Gas engine 6-cylinder petrol engine 1. Oil pump. Sucks in engine oil through the suction filter and the suction pipe from the oil pan; 2. Longitudinal oil channel to the...

Oil pan (gasoline engine) — removal and installation
1. Radiator clip; 2. Fan housing clip; 3. Fan case; 4. Radiator; 5. Coating of motor wiring; 11. Front engine mount bolts 12. Rear engine mount bolts; 16. Lid; S43. Oil...

Oil pan (diesel 2.0) — removal and installation
2.0L diesel engine 3. Oil drain plug 6. Engine stop (type 201) 24. Engine damper (type 201) Removing 1. Remove the bottom cover of the engine compartment. 2. Remove the...

Oil pan (diesel 2.2 / 2.5) — removal and installation
Removing 1. Disconnect the wire "masses" (–) batteries. Attention! This erases the anti-theft code of the radio. 2. Remove fan shroud (7) and place on top of the fan. 3....

Oil level indicator — removal and installation
Gasoline and diesel engines 27. Oil pan; 351. Oil level sensor; 352. Bimetal snap disk; 358. Float; 359. Magnet; 360. Reed - contact (reed contact, reed switch); 365....

Oil/coolant heat exchanger
heat exchanger (oil cooler) connected to the oil and coolant circulation circuit by direct and recirculation pipelines. The pipelines are brought to the oil pump from...

Diagnosis of malfunctions in the oil circuit
Diagnosis of malfunctions in the oil circuit CAUSE SOLUTION Low oil pressure after engine start very hot oil Ignore if the oil pressure returns to normal after...