Mercedes-Benz S350 TURBODIESEL Operator's Manual page 92

Checking Engine Oil Level
1 Oil dipstick
2 Oil filler cap
To check the engine oil level, park
vehicle on level ground, with engine at
normal operational temperature.
Check engine oil level approximately 5
minutes after stopping the engine,
allowing for the oil to return to the oil
pan.
Wipe the dipstick clean before
checking.
Add oil, if needed, only
to the upper mark
(max).
Do not overfill engine.
For viscosity and capacity, see
Capacities: Fuels, Coolants,
Lubricants etc. in Index.
For low engine oil level warning lamp,
see Index.
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