168 Starting and driving › Starting issues
Functionality
Starting issues
Troubleshooting
If the system determine that the engine is not nee-
ded when the vehicle stops, it turns off the engine
and starts it again when moving off.
NOTICE
Risk of engine damage!
Vehicle with manual transmission
Do not start the vehicle by towing.
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A system-related engine shutdown takes place when
the vehicle is stopped, when the gear lever is shifted
into neutral and when the clutch pedal is released.
The engine does not start
Switch off the ignition.
Wait 30 seconds and repeat the starting proce-
dure.
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A system-related engine start occurs when the
clutch pedal is pressed down.
If the engine does not start, start the vehicle using
another vehicle's battery » page 204 or get help
from a specialist company.
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Vehicle with automatic transmission
A system-related engine switch-off occurs when the
brake pedal is actuated and the engine is stopped.
The engine does not start, the display shows a
message regarding the immobilizer
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.
Use the other vehicle key.
If the engine does not start, seek the help of a spe-
cialist garage.
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Status display in the instrument cluster display
- Engine is switched off by the START-
STOPSystem
Starting is not possible with the starter button, the
system did not detect the key
illuminates
- Engine is switched off by the START-
STOPSystem not switched off due to func-
tional conditions not being met
Press the starter but-
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ton with the key.
Display of detailed information in the infotainment
screen
If the engine does not
start, seek the help of a
specialist garage.
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Vehicle status
Or:
Vehicle status
Functional conditions
The key might not be detected if the battery in
the key is nearly discharged or the signal is faulty.
Some conditions are system-related and cannot be
influenced or recognized. Therefore, the system may
react differently in situations which seem identical
from the driver's perspective.
The engine cannot be turned off with the starter
button
Hold the starter button or press twice.
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The driver must meet the following conditions.
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 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.
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.
Settings
Automatic activation
Upon start-up of the engine.
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START STOP
Usage
By selecting the driving mode Eco » page 171, Op-
eration.
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Deactivate / activate system
Press the button.
The START-STOPSystem reduces polluting emis-
sions and CO2emissions and saves fuel.
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