Mercedes-Benz 2013 C Class Coupe - Manual (Page 280)

Display messages Possible causes/consequences and M Solutions
Telephone No
service
Your vehicle is outside the network provider's transmitter/
receiver range.
X Wait until the mobile phone operational readiness symbol
appears in the multifunction display.
¥
Top up washer fluid
The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X Top up the washer fluid ( Y page 318).
Key (4-button multifunction steering wheel)
Display messages Possible causes/consequences and M Solutions
Key does not
belong to vehicle You have put the wrong key in the ignition lock.
X Use the correct key.
+
You need a new key
The key needs to be replaced.
X Visit a qualified specialist workshop.
+
Change battery
The batteries of the KEYLESS-GO key are discharged.
X Change the batteries ( Y page 85).
Key not detected
(Red display message)
The KEYLESS-GO key 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 169).
X Locate the KEYLESS-GO key.
The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
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 169).
X Operate the vehicle with the key in the ignition lock if necessary.
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Display messages
On-board computer and displays