Mercedes-Benz E-Class Estate 2017, Owner'S Manual

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Display messages
Possible causes/consequences and M M Solutions
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Change key batteries
* The key battery is discharged.
#
Replace the battery .
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Key not detected (white
display message)
* The key is currently undetected.
#
Change the location of the key in the vehicle.
#
If the key is still not recognised, start the engine with the key in the stowage compartment .
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Key not detected (red dis‐
play message)
* The key cannot be detected and may no longer be in the vehicle.
The key is no longer in the vehicle and you switch off the engine:
R
you can no longer start the engine.
R
you cannot centrally lock the vehicle.
#
Ensure that the key is in the vehicle.
If the key detection function has a malfunction due to a strong radio signal source:
#
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
#
Place the key in the stowage compartment for starting the engine with the key .
Display messages and warning/indicator lamps 507