Mercedes-Benz Metris Operating Instructions Manual page 311

Capacities
! Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
Oil change including oil filter
Engine oil
Additives
! Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity
If the SAE class of the engine oil used does
!
not cover the outside temperature range in
which your vehicle is traveling, you must
change the engine oil in good time, in partic-
ular before the cold season commences.
Using an engine oil that does not have ade-
quate temperature characteristics can lead
to engine damage.
The temperature range information of the
SAE classification always refers to that of
fresh oil. The temperature characteristics of
the engine oil may deteriorate significantly
as a result of aging during vehicle operation,
especially at low outside temperatures.
Therefore, have the engine oil changed
before the cold season commences. Use an
approved engine oil of the specified SAE
class.
Engine oil SAE classification
Viscosity indicates 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.
Service products and capacities
Depending on the respective outside tempera-
tures, select an engine oil according to SAE
classification (viscosity). The viscosity class of
the engine oil can have an influence on the
fuel consumption. The table displays the SAE
classification to be used. The low temperature
characteristics of engine oils can noticeably
deteriorate during operation, e.g. from aging,
soot and fuel accretion. For this reason, regu-
Approx. 2 US gal
lar oil changes using an approved engine oil
(7.75 l)
from the suitable SAE classification are
urgently recommended.
Oil change
Oil change intervals depend on the vehicle's
operating conditions and the quality of the
engine oil used. The on-board computer auto-
matically shows the date for the next oil
change as an event message in the display.
Mercedes-Benz recommends having the oil
changed at a qualified specialist workshop.
Information about oil consumption
Depending on the driving style, the vehicle
consumes a maximum of 1.0 US qt (1.0 l) of
engine oil over a distance of 620 miles
(1,000 km).
Oil consumption may be higher if:
The vehicle is new.
R
You mainly operate the vehicle under ardu-
R
ous operating conditions.
You frequently drive at high engine speeds.
R
Regular maintenance is one of the precondi-
tions for moderate rates of consumption.
You can only estimate the oil consumption
after you have driven a considerable distance.
Check the engine oil level on a regular basis,
e.g. weekly or each time you refuel
Y
( page 252).
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