Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 84

Deactivate the function of the key in
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these situations.
or
Make sure that the key is at a minimum
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distance of 3 m away from the vehicle.
Observe the notes:
on washing the vehicle in a car wash
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( page 388)
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on using a high pressure cleaner
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( page 390)
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To unlock the vehicle: touch the inner surface
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of the door handle.
To lock the vehicle: touch sensor surface
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or 2.
Convenience closing: touch recessed sensor
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surface 2 for an extended period.
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Further information on convenience closing
( page 92).
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Problems with KEYLESS-GO, troubleshooting
You can no longer lock or unlock the vehicle using
KEYLESS-GO
Possible causes:
The function of the key has been deactivated.
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The key battery is weak or discharged.
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Activate the function of the key (
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Check the battery using the indicator lamp
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( page 75).
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Replace the key battery, if necessary
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( page 77).
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Use the replacement key.
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Use the emergency key to lock or unlock
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( page 82).
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Have the vehicle and key checked at a quali-
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1
fied specialist workshop.
There is interference from a powerful radio signal
source
Possible causes if the function of KEYLESS-GO is
impaired:
high voltage power lines
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Opening and closing 81
page 76).
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