Car engine lubrication system Mercedes S-Class (W126)

Purpose and properties of motor oils
The tasks of motor oil According to the operating conditions, engine oils must meet changing requirements. Therefore, it is very difficult to accurately determine the...

The structure and operating principle of the lubrication system
The toothed oil pump with its intake pipe reaches the deepest point of the lower half of the oil pan. An elastic adapter is fixed on the intake pipe of the pump, which...

Oil pressure reducing valve — removal and installation
The pressure reducing valve is located at the front in the main oil line and opens at an excess pressure of 5 bar (engine type 110). In accordance with the location of...

Oil pump — removal and installation
Removal and disassembly Remove the pan or the bottom of the pan. Remove the mounting bolts (arrows) on the cylinder block and on the crankshaft bearing cover. Remove the...

Oil filter — design description
The oil filter is a full-flow filter with a paper filter element. The filter is screwed in at the bottom left of the cylinder block. In 6-cylinder engines, it is best to...

Replacing the oil filter on a 110 engine with air conditioning
Unscrew the fastening bolt (1), carefully pull the lower part of the filter (3) downwards and put it away. Remove the filter element (6). Remove the pressure spring with...

Oil pan — removal and installation
6-cylinder engines Disconnect the oil return line at the oil pan. Loosen the 6 bolts of the protective pan on the cylinder block and remove the pan. Turn the front...

Oil Temperature Thermostat — Removal and Installation
The working thermostat may only be removed at temperatures below 60'C, otherwise the pressure rod will be pressed out. The pressure rod must under no circumstances be...

Oil radiator — removal and installation
Drain the oil from the oil radiator by loosening the union nut on the oil hose. Loosen the mounting bolt between the oil cooler and the radiator below. Remove the oil...

Changing engine oil
Tighten the oil drain bolt with a new sealing ring. Pour new oil into the cylinder head cover filler neck. If it was removed, install the air filter. If it was fixed,...

Diagnostics of lubrication system faults
Diagnostics of lubrication system faults

Lubrication circuit of eight-cylinder engines
Lubrication circuit of eight-cylinder engines

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TEXTHTMLBB Code

W140 (1991-1998)