Warning Lamp - SMART forfour Owner's Manual

Warning and indicator lamps in the instrument cluster
Problem
5
The red oil pressure
indicator lamp is lit
while the engine is
running. A warning
tone also sounds.
?
The red coolant tem-
perature warning
lamp comes on while
the engine is running.
A warning tone also
sounds.
Possible causes/consequences and M Solutions
The engine oil pressure is too low. There is a risk of engine
damage.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions. Do not con-
tinue driving under any circumstances.
X
Switch off the engine.
X
Secure the vehicle against rolling away (
X
Check the oil level (
X
If necessary, top up the engine oil (
Information on approved engine oils can also be obtained from
any qualified specialist workshop.
The coolant temperature has exceeded 110 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
G
WARNING
The engine is not being cooled sufficiently and may be dam-
aged.
Never drive with an overheated engine. Driving when your
engine is overheated can cause some fluids which may have
leaked into the engine compartment to catch fire.
Steam from an overheated engine can cause serious burns,
which can occur just by opening the engine compartment cover.
There is a risk of injury.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions. Do not con-
tinue driving under any circumstances.
X
Switch off the engine.
X
Secure the vehicle against rolling away (
X
Leave the vehicle and keep a safe distance from the vehicle
until the engine has cooled down.
X
Check the coolant level and top up the coolant. Observe the
notes as you do so (
X
If you have to top up the coolant frequently, have the engine
cooling system checked.
X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X
Do not start the engine again until the coolant temperature
is below 110 †. The engine may otherwise be damaged.
Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
Y
page 214).
Y
page 215).
Y
page 272).
Y
page 138).
Y
page 138).
Z
197