Mercedes-Benz R-Class 2012 Owners Manual - Manual (Page 238)

Display messages Possible causes/consequences and M Solutions
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Bluetooth ready
The Bluetooth ® connection between your mobile phone and
COMAND is not activated.
X If desired, activate the Bluetooth ® connection between your
mobile phone and COMAND (see the separate Operator's
Manual).
¥
Top Up Washer Fluid
The washer fluid level has dropped to approximately ⅓ of the total
reservoir capacity.
X Add washer fluid ( Y page 285).
SmartKey
Display messages Possible causes/consequences and M Solutions
+
Key Does Not
Belong to Vehicle
You have put the wrong SmartKey in the ignition lock.
X Use the correct SmartKey.
+
Remove Key
The SmartKey is in the ignition lock.
X Remove the SmartKey.
+
You need a new key.
The SmartKey needs to be replaced.
X Visit a qualified specialist workshop.
+
Change Key
Batteries
The batteries of the KEYLESS-GO key are discharged.
X Change the batteries ( Y page 76).
+
Don't Forget Your
Key
The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X Remember to take the KEYLESS-GO key with you when you
leave the vehicle.
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Display messages
On-board computer and displays