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Determine oil consumption - AR18.00-P-0025-05OM

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ENGINE 642, 629 

Determine the oil mass before the measuring drive and note down the kilometer reading 

  1. Place the vehicle on an even, horizontal surface.
  2. Warm up engine to normal operating temperature.

    IMPORTANTHIGH PRESSURE TEST Temperature of engine oil  80 °C or 176 °F

  3. Fill the engine oil level up to maximum.
  4. Drain the engine oil and collect it in a clean container.
  5. Weigh the vessel with the engine oil.
  6. Note down the mass (m 1  )  of the filled container, with the kilometer reading (s 1  )  on the "Engine analysis sheet" form.
  7. Pour the engine oil from the container into the engine.

    Measuring drive 

  8. Perform measuring drive.

    IMPORTANT 1000 km trip by customer.

    Determine the oil mass after measuring drive and note down the kilometer reading 

  9. Place the vehicle on an even, horizontal surface.
  10. Warm up engine to normal operating temperature.

    IMPORTANTHIGH PRESSURE TEST Temperature of engine oil  80 °C or 176 °F

  11. Drain the engine oil and collect it in a clean container.
  12. Weigh the vessel with the engine oil.
  13. Note down the mass (m 2  )  of the filled container and the kilometer reading (s 2  )  on the "Engine analysis sheet" form.

    Calculate oil consumption: 

    IMPORTANT Oil density ( = 0.85 kg/l)

    Measurement distance (smess ) = kilometer reading (s2) - kilometer reading (s1)

    Fig 1: Equation For Calcutating Oil Consumption
    G10240946Courtesy of MERCEDES-BENZ USA

    Example of oil consumption calculation: 

    Fig 2: Example For Calculating Oil Consumption
    G10240947Courtesy of MERCEDES-BENZ USA

    IMPORTANT Depending on driving style, the engine consumes up to 0.8 liters of oil per 1000 kilometers.