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Safe Driving
Oil Pressure Gauge
The oil pressure at idle speed may
drop to 0.3 bar/4.4 psi if the engine is
at operating temperature. This will not
jeopardize its operational reliability.
Pressure must, however, rise
immediately upon acceleration.
The oil pressure gauge will not
provide early warning of low oil level.
Therefore, check oil level at regular
intervals with the dipstick.
Coolant Temperature Gauge
If the antifreeze mixture is good to
— 30° C/ — 22° F the boiling point of
the coolant in the pressurized cooling
system of your vehicle is approx.
125° C/257° F (see also " Fuels, Cool
ants, Lubricants, etc." ).
During severe operating conditions
and stop-and-go city traffic the
coolant temperature must not rise
above the red marking.
Emission Control
Certain systems of the engine serve
to keep the toxic components of the
exhaust gases within permissible
limits required by law. (Nevertheless,
we urgently advise you not to let the
engine run in a closed garage.) These
systems, of course, will function
properly only when maintained strictly
according to factory specifications.
Any adjustments on the engine
should, therefore, be carried out only
by qualified MERCEDES-BENZ tech
nicians. The adjustments of the
engine should not be altered in any
way. Moreover, the specified service
and maintenance jobs must be
carried out regularly according to
MERCEDES-BENZ servicing require
ments. For details refer to the
Maintenance Booklet.
Engine Oil Consumption
Engine oil consumption can only be
determined after a certain mileage
has been covered. During the break-
in period, higher oil consumption may
be noticed and is normal.
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