Charge Indicator L A M P 47 Oil Pressure Gauge; Coolant Temperature Gauge; Emission Control; Engine Oil Consumption - Mercedes-Benz 380 SL Owner's Manual

Safe Driving
Oil Pressure Gauge
The oil pressure may drop at idle
speed to 0.5 bar/7.1 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 does not
provide any information concerning
the oil level in the engine.

Coolant Temperature Gauge

Due to the pressurized cooling sys­
tem, the coolant only starts boiling
at a temperature of approx. 125° C/
257° F with an antifreeze-blended
coolant fill protecting down to
-3 0 ° C /-2 2 ° F (see also "Fuels,
Coolants, Lubricants, etc.").
During severe operating conditions
and stop-and-go city traffic the
coolant temperature must not rise
above the red marking.
48

Emission Control

Certain systems of the engine
sen/e to keep the toxic com ­
ponents 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 sys­
tems, of course, will function
properly only when maintained
strictly according to factory specifi­
cations. Any adjustments on the
engine should, therefore, be carried
out only by qualified MERCEDES-
BENZ technicians. The adjustments
of the engine should not be altered
in any way. Moreover, the specified
sen/ice and maintenance jobs must
be carried out regularly according
to MERCEDES-BENZ servicing re­
quirements. For details refer to
Maintenance Booklet.

Engine Oil Consumption

Engine oil consum ption can only be
determined after a certain mileage
has been covered. During the
break-in period, higher oil con­
sumption may be noticed and is
normal. Frequent high engine
speed operation will also cause
increased oil consumption.