Mercedes-Benz SLR McLaren. Operator's Manual.

Controls in detail
Instrument cluster
Coolant temperature gauge During severe operating conditions, e.g.
Warning! G
Driving when your engine is badly overheated
can cause some fluids which
may have leaked into the engine compartment
to catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns an can occur just by
opening the hood. Stay away from the
engine if you see or hear steam coming
from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
114
!
Excessive coolant temperature triggers
the coolant temperature warning lamp
( page 302) and a warning in the
multifunction display ( page 323).
stop-and-go traffic, the coolant temperature
may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious engine
damage which is not covered by the
Mercedes-Benz Limited Warranty.