Mercedes-Benz S-class W140 - Repair manual and operation

4.6.24. The oil pump - a design and details of installation

Details of installation of the oil pump

1 — the Oil pump 6 — the Bolt 7 — the Asterisk of the oil pump 8, 9 of Bolte with laying 10 — the Compensator S43 — the oil level Sensor

Scheme of the pump and filter

1 — the Oil receiver and the filter of rough cleaning of the oil pump 2a — the Tandem oil pump, the first step 2b — the Tandem oil pump, the second step 3 — the Reducing valve 4a — the Reducing valve 4b — an oil pressure Reducer	5 — the Antidrainage valve 6 — the Thermostat 7 — Perepuskna the valve of an oil filter 8 — the Oil filter 9 — the Drain valve of an oil filter 10 — the Air oil cooler 11 — the Sensor of emergency pressure of oil

Design of the two-level oil pump

1 — the Case of the first step of the oil pump 2 — the Roller of the drive of the first step with a napressovanny gear wheel 2a — the Gear wheel of the first step 3 — a pump Shaft 3a — the Gear wheel of the first step 4 — the Case of the second step of the oil pump 5 — the Dish-shaped valve 6 — the Gear wheel of the second step 7 — the Gear wheel of the second step 8 — the Cover a guide 9 — the Case of the reducing valve 10 — the Piston of the reducing valve 11 — the Cap 12 — the Cover with an oil receiver 13 — Pruzhina 14 — the Plunger

15 — the Perepuskny opening in the piston of the reducing valve 15a — the Oil channel connecting to the working camera 16 — the Working camera 17 — the Opening under a pin 18 — the Driving asterisk D — the Soaked-up oil Е — the absorption Camera F — the Channel connecting to the trunk main P — the Pressure chamber, primary stream of oil S — the Pressure chamber, an oil stream at the exit from the pump G — the Opening of the reducing valve