Mercedes-Benz S-Coupe 2015 - Manual (Page 280)

Display messages Possible causes/consequences and M M Solutions
Â
Key Not Detected Key Not Detected
(red display message)
The SmartKey is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (
Y
page 166).
X
Locate the SmartKey.
X
Press a on the steering wheel to confirm the display mes-
sage.
Because there is interference from a strong source of radio waves,
the key is not detected whilst the engine is running.
A warning tone also sounds.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (
Y
page 166).
X Insert the SmartKey into the ignition lock and bring into key
mode.
Â
Remove Remove 'Start' 'Start' But‐ But‐
ton and Insert Key ton and Insert Key
The SmartKey is continually undetected.
The SmartKey detection function has a temporary malfunction or
is faulty. A warning tone also sounds.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop.
278
Display messages
On
-b
oar
d
comp
ut
er
an
d
di
sp
lay
s