Mercedes-Benz 300D 2.5 1990, Owner'S Manual

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Exterior Lamp Failure Indicator
Lamp
With the key in steering lock posi­
tion 2, a dim indicator lamp comes on
and must go out with the engine
running.
With the key in steering lock position 2
or with the engine running, a bright
illumination of this lamp indicates an
exterior lamp failure.
If an exterior lamp fails, the indicator
will come on only when that lamp is
switched on.
If a brake or turn signal lamp fails, the
lamp failure indicator will come on
when applying the brake or actuating
the turn signal and stay on until the
engine is turned off.
Caution!
The indicator lamp will also come on if
an incorrect bulb is installed.
If additional lighting equipm ent is in­
stalled (e.g. auxiliary headlamps etc.)
be certain to connect into the fuse
before the failure indicator monitoring
unit in order to avoid damaging the
system.
Fuel Reserve W arning Lamp
The fuel reserve warning lamp will
come on when the key is turned to
steering lock position 2, and should go
out after the engine is running.
If the warning lamp stays on after the
engine starts, or comes on while
driving, it indicates that the fuel level is
down to the reserve quantity (9.0 I
[2.4 US gal]).
Coolant Tem perature Gauge
If the antifreeze mixture is effective to
-3 0 °C (-2 2 ° F), the boiling point of the
coolant in the pressurized cooling
system of your vehicle is approx.
130°C (266°F).
During severe operating conditions
and stop-and-go city traffic, the
coolant tem perature may rise close to
the red marking.
The engine should not be operated
with the coolant tem perature in the red
zone.
W arning!
• Driving when your engine is
badly overheated can cause
some fluids which may have
leaked into the engine com ­
partm ent to catch fire. You
could be seriously burned.
Turn off the engine and get
out of the car until it cools
down.
• Steam from an overheated
engine can cause serious
burns and can occur just by
opening the engine hood. Stay
away from the engine if you
see or hear steam coming
from it. Turn off the engine
and do not stand near the car
until it cools down.
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