Mercedes-Benz:: S-class W202:: Diagnostics of malfunctions in an oil circulation contour

4.9. Diagnostics of malfunctions in an oil circulation contour

REASON		WAY OF ELIMINATION
Low pressure of oil after start of the engine	Very hot oil	Not to take into account if pressure of oil is normalized after pressing an aselerator pedal.
Too low pressure of oil at small turns of the engine	The oil reducing valve closes abroach because of pollution	Sort and check the valve.
Too low pressure of oil at normal turns of the engine	It is not enough oil in the engine	Add oil.
	The filter of the soaking-up cap is polluted	Disassemble the oil pallet. Clean the soaking-up filter.
	The tube of absorption of oil departed or is broken	Disassemble the oil pallet, check an oil absorption tube.
	Wear of the oil pump	Remove the oil pump and check it, replace in case of need.
	Damage of the bearing	Disassemble the engine and repair it.
The alarm lamp of level of oil burns	Too low level of oil	Add engine oil.
The alarm lamp of level of oil burns	The electric chain is broken, the monitor is faulty	Eliminate a rupture of an electrochain, check contact of the plug, in case of need replace the operating electronics in the dashboard.