Mercedes-Benz SLR McLaren. Operator's Manual.

Problem Possible cause/consequence Suggested solutions
< The red Airbrake warning
lamp comes on while driving
and you hear a warning
sound.
> The red gearshift indicator
lamp comes on while you are
driving.
A The yellow reserve fuel warning
lamp lights up while you
are driving.
= The engine oil temperature
indicator comes on in the
tachometer while you are
driving.
The Airbrake or the central locking system
is malfunctioning.
You are driving with the manual shift program.
The engine is in the overrevving
range.
The fuel level has fallen into the reserve
range.
The engine oil has not yet reached its
operating temperature.
Practical hints
What to do if ...
Notify an authorized Mercedes-Benz Center
immediately.
Shift to the next higher gear. Otherwise the
fuel supply will be interrupted to prevent the
engine from overrevving.
Refuel at the nearest gas station
( page 241).
Warm up the engine and do not drive at full
power until the operating temperature has
been reached.
The symbol will go out as soon as the engine
oil has reached its operating temperature.
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