Instruments and Indicator/Warning Lights 37
The coolant temperature is too high or the coolant level too low if the warning light
does not go out or flashes while driving.
EPC fault light (petrol engine)
The (Electronic Power Control) warning light comes on for a few seconds when
the ignition is switched on.
3 peeps sound as an additional warning signal.
In this case stop and switch the engine off and check the coolant level; top up the
If the warning light does not go out or lights up after starting the engine, a fault
exists in the engine control. The engine management system selects an emergency
programme which enables you to drive to the nearest specialist garage by adopting
a gentle style of driving.
coolant as necessary.
Do not continue your journey if for some reason it is not possible under the
conditions prevailing to top up with coolant. Keep the engine switched off and
obtain professional assistance from a specialist garage, otherwise it could lead to
severe engine damage.
The following text will be displayed in the information display*:
Engine fault Workshop!
If the coolant is within the specified range, the increased temperature may be
caused by an operating problem at the coolant fan. Check the fuse for the coolant
fan, replace it if necessary ⇒ page 253, “Fuse assignment in engine compartment -
version 1” or ⇒ page 255, “Fuse assignment in engine compartment - version 2”.
Glow plug system (diesel engine)
Do not continue driving if the warning light does not go off although the fluid is at
the correct level and also the fuse of the fan is in proper order. Contact a specialist
garage to obtain assistance.
The warning light lights up for a cold engine when switching on the ignition
(pre-heat position) 2 ⇒ page 121. Start the engine after the indicator light goes out.
The glow plug indicator light will come on for about 1 second if the engine is at a
normal operating temperature or if the outside temperature is above +5°C. This
means that you can start the engine right away.
Please also refer to the additional instructions ⇒ page 222, “Cooling system”.
The following text will be displayed in the information display*:
Check coolant! Owner's manual
There is a fault in the glow plug system if the warning light does not come on
or lights up continuously; contact a specialist garage as soon as possible to obtain
assistance.
WARNING
If the warning light begins to flash while driving, a fault exists in the engine
control. The engine management system selects an emergency programme which
enables you to drive to the nearest specialist garage by adopting a gentle style of
driving.
•
If you must stop for technical reasons, then park the vehicle at a safe
distance from the traffic and switch off the engine and switch on the hazard
warning light system ⇒ page 64.
•
Take care when opening the coolant expansion bottle. If the engine is hot,
the cooling system is pressurized - risk of scalding! It is best to allow the
engine to cool down before removing the cap.
The following text will be displayed in the information display*:
Engine fault Workshop!
•
Do not touch the coolant fan The coolant fan may switch on automati-
cally even if the ignition is off.
Coolant temperature/ Coolant quantity
4)
The warning light on vehicles fitted with information display does not come on after
switching the ignition on, but only if the coolant temperature is too high or the coolant level
is too low.
4)
The warning light comes on for a few seconds when the ignition is switched on.
Using the system
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