The First 1500 Km/1000 Miles; Special O Perating C Onditions; Charge Indicator L A M P 41 Oil Pressure Gauge; C Oolant Tem Perature Gauge . 42 - Mercedes-Benz 450 SL 1980 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 w ill not jeopardize its opera­
tional reliability. Pressure must,
however, rise imm ediately upon
acceleration.
The oil pressure gauge does not
provide any inform ation concerning
the oil level in the engine.
Coolant Temperature Gauge
Due to the pressurized cooling
system, the coolant only starts
boiling at a tem perature 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.
Emission Control
Certain systems of the engine
serve to keep the toxic components
of the exhaust gases w ithin per­
missible lim its required by law.
(Nevertheless, we urgently advise
you not to let the engine run in a
closed garage.) These systems, of
course, w ill 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 techni­
cians. 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
requirements. For details refer to
O wner's Emission C ontrol and
Maintenance Manual.

Engine Oil Consumption

Engine oil consum ption can only be
determ ined 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 w ill also cause
increased oil consumption.