Mercedes-Benz 2006 SL 500 Operator's Manual page 337

Practical hints
What to do if ...
Problem
ú
(USA only)
±
(Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
D
The red coolant warning lamp
comes on when the engine is
running.
D
The red coolant warning lamp
comes on while driving and you
hear a warning sound.
336
Possible cause/consequence
Your fuel tank is empty.
There is insufficient coolant in the reservoir.
If this warning lamp comes on frequently,
there is a leak in the cooling system.
If the coolant level is correct, the electric ra-
diator fan may be broken.
The coolant temperature has exceeded
248°F (120°C).
Suggested solution
After refuelling, start, turn off, and re-
start the engine three or four times in
succession.
The limp-home mode is canceled. You
do not need to have your vehicle
checked.
Immediately add coolant to prevent
engine from overheating
( page 278).
Have the cooling system checked.
If the coolant temperature is below
248°F (120°C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.
Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
Stop in a safe location as soon as pos-
sible and allow the engine and coolant
to cool down.