Starting issues
Troubleshooting
NOTICE
Danger of engine damage!
▶
Do not start the vehicle by towing.
The engine does not start
›
Switch o the ignition.
›
Wait 30 seconds and repeat the starting proce-
dure.
›
If the engine does not start, use the jump start ca-
bles with the battery of another vehicle » page 136
or seek the help of a specialist garage.
The engine does not start, the display shows a
message regarding the immobilizer
›
Use the other vehicle key.
›
If the engine does not start, seek the help of a spe-
cialist garage.
Starting is not possible with the starter button, the
system did not detect the key
›
Insert the key into the cup holder at the front.
›
Press the starter button.
›
If the engine does not start, seek the help of a spe-
cialist garage.
The key might not be detected if the battery in
the key is nearly discharged or the signal is faulty.
The engine cannot be turned o with the starter
button
›
Hold the starter button or press twice.
The radiator fan keeps running even after the en-
gine has stopped
The radiator fan can continue to run for approxi-
mately 10 minutes after the engine is stopped. This is
not a defect.
The engine makes noises after the cold start
The increased running noise is due to the briefly in-
creased engine speed. This is not a defect.
START STOP
Usage
The START STOP system reduces environmentally
damaging emissions, including CO
2
, and saves fuel.
If the system determine that the engine is not nee-
ded when the vehicle stops, it turns o the engine
and starts it again when moving o.
Functionality
Vehicle with manual transmission
A system-related engine switch-o occurs when
stopping, when switching the gear lever into the
neutral position, and when releasing the clutch pedal.
A system-related engine start occurs when the
clutch pedal is pressed down.
Vehicle with automatic transmission
A system-related engine switch-o occurs when the
brake pedal is actuated and the engine is stopped.
A system-related engine start occurs when the ac-
celerator pedal is pressed down. When the Auto
Hold function is deactivated, a system-related en-
gine start occurs after releasing the brake pedal.
Status display in the instrument cluster display
Engine is switched o via the START-STOP
system
Engine is not switched o via the START-STOP
system due to operating conditions that are
not met
Operating conditions
Some conditions are systemic and can neither be in-
fluenced nor recognised. Therefore, the system may
react dierently in situations which seem identical
from the driver's perspective.
The driver must fulfil the following conditions.
✓ The driver's door is closed.
✓ The driver has fastened the seat belt.
✓ The driving speed was higher than 4 km/h after
the last stop.
Settings
Automatic activation
▶
Upon start-up of the engine.
▶
By selecting driving mode Eco » page 113, Opera-
tion.
Deactivate/activate system
›
Press the button under the Infotainment.
In the displayed menu in the Infotainment, the func-
tion can be deactivated or activated.
If a system-related engine switch-o occurs and the
system is deactivated, the engine will start.
Troubleshooting
The engine does not switch o when stopping, or
it starts before starting up
The system has detected that the engine is running.
110
Starting and driving › Starting issues
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