Engine oil viscosity
Viscosity describes the flow characteristics of a fluid. If an engine oil has a high viscosity, this means that it is thick; a low viscosity means that it is thin.
Select an engine oil with an SAE (viscosity) classification suitable for the prevailing outside temperatures. The following table shows the correct SAE classification to be used. The low-temperature characteristics of engine oils can deteriorate significantly, e.g. as a result of aging, soot and fuel deposits. It is therefore strongly recommended that you carry out regular oil changes using an approved engine oil with the appropriate SAE classification.

See also:
Setting the front-compartment airflow
using the front control panel
You can select different airflow settings for
the driver's and front-passenger sides as well
as for the rear compartment.
You can also use COMAND to set the airflow.
Turn the SmartKey to positi ...
Seat belt adjustment
The seat-belt adjustment function adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants.
The belt strap is tightened slightly when:
• you engage the belt tongue i ...
Interior design in detail: From Economy to First Class
The third generation of the Mercedes-Benz M-Class combines the best of two
worlds: the much-coveted SUV not only boasts a strong off-road vehicle heritage,
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