Mercedes-Benz B-Class Quiz
Diesel engines

Lubrication

In this manual: Diesel engines
Operator's Manual - Mercedes-Benz B-Class — 194Airbags and belt tensioners — 9Diesel engines — 22Electrical equipment — 6Automatic transmission — 5Manual gearbox — 5Brakes — 12Heating - air conditioning — 13Suspension - axles - geometry — 7Vehicle specifications and identification — 7Driveshafts — 4Steering — 6Clutch — 4Body — 18
~1min read

Pressure lubrication by oil pump driven from the crankshaft by a chain. The circuit includes a relief valve built into the pump, a water/oil heat exchanger, a filter and 4 oil jets for cooling the piston crowns, which are housed in the cylinder block.

The circuit also lubricates the vacuum pump and the turbocharger.

OIL PUMP

The oil pump is mounted on the engine block and driven by the crankshaft via a chain.

OIL PRESSURE

À 80 'C :

  • ≥ 0.8 bar at idle.
  • ≥ 3 bar at 2,000 rpm.
  • ≥ 4 bar at 4,000 rpm.

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A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.