120 Engine, exhaust system and fuel › Engine electronics
Stop driving! Seek the help of a specialist garage.
When the indicator light is on, it must be as-
sumed that fuel consumption will be higher, engine
power will be reduced, and the START-STOPP func-
tion will not be available.
›
Coolant temperature too high
illuminates together with
Report regarding the engine overheating
Stop driving.
Stop the engine and allow it to cool.
Drive on after the indicator light goes out.
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Filter cleaning
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Conditions for cleaning
✓ The engine is warm.
✓ For vehicles with manual transmission, observe
the gear recommendation shown in the display of
the instrument cluster.
Engine fault
illuminates together with
Stop driving!
Stop the engine and seek the help of a specialist
›
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Cleaning procedure
garage.
Drive at a speed of at least 80 km/h at engine
speeds between 3000-5000 rpm.
›
There is no coolant of the correct specification
available
Top up with distilled or demineralised water.
Have the correct coolant mixing ratio corrected by
Release the accelerator pedal and let the vehicle
roll with the gear engaged for a few seconds.
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Repeat this procedure several times.
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a specialist garage as soon as possible.
If the filter is successfully cleaned, the indicator light
goes off.
.
Another substance was used for topping up, other
than distilled or demineralised water:
If the indicator light
does not go off within 30
minutes, no filter cleaning was performed.
Have the coolant changed by a specialist garage.
›
Continue driving, exercising appropriate caution,
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It is not possible to top up with a sufficient amount
of coolant
and seek the help of a specialist garage.
Stop driving.
Stop the engine and seek the help of a specialist
garage.
›
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Exhaust control system
Troubleshooting
There is a loss of coolant
Top up the coolant and seek the help of a specialist
garage.
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Emission control system faulty
illuminates
Driving in emergency mode is possible - a no-
ticeable reduction in engine performance may occur.
Engine electronics
Troubleshooting
Continue driving, exercising appropriate caution,
›
and seek the help of a specialist garage.
Petrol engine control faulty
illuminates
Fuel filler flap
Driving in emergency mode is possible - a
noticeable reduction in engine performance may oc-
cur.
Opening the fuel filler flap
Press the flap and open
it.
›
Continue driving, exercising appropriate caution,
and seek the help of a specialist garage.
›
Particle filter
Troubleshooting
Clogged particle filter
illuminates together with
Clean the filter.
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