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Display messages
Possible causes/consequences and
X SolutionsDISTRONIC
PLUS - - - mph One of the activation conditions for the DISTRONIC PLUS has
not been fulfilled. You may have attempted to set a speed
below 20 mph (
30 km/h)
.
X Drive faster than 20 mph (30 km/h) if the situation allows
and set the speed.
X Check the activation conditions for the DISTRONIC PLUS
(Y page 309). HOLD Off The HOLD function switched off because the vehicle was
sliding, for example on a slippery surface.
X
Activate the HOLD function later. Park
Assist Currently
Unavailabl
e See
Oper.
Manual The Park Assist is deactivated because the area around the
sensors in the front or the rear bumper is dirty.
X
Clean the front and rear bumper ( Y page 406). The Park Assist is deactivated because the battery voltage is
insufficient.
X
Have the battery checked at an authorized Mercedes-Benz
Center. The Park Assist is switched off because the radar sensor
system is temporarily inoperative due to electromagnetic
interference near television and radio transmitter stations,
toll stations, speed measuring systems, etc.
X
Wait until the message in the multifunction display
disappears. Park
Assist Inoperativ
e The Park Assist is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. 422
Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X SolutionsBlind
Spot
Assist Currently
Unavailabl
e See
Oper.
Manual The Blind Spot Assist is deactivated because the area around
the sensors in the front or the rear bumper is dirty.
X
Clean the front and rear bumper ( Y page 406). The Blind Spot Assist is deactivated because the battery
voltage is insufficient.
X
Have the battery checked at an authorized Mercedes-Benz
Center. The Blind Spot Assist is switched off because the radar sensor
system is temporarily inoperative due to electromagnetic
interference near television and radio transmitter stations,
toll stations, speed measuring systems, etc.
X
Wait until the message in the multifunction display
disappears. Blind
Spot
Assist Inoperativ
e The Blind Spot Assist is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. Parking
Guidance Currently
Unavailabl
e See
Oper.
Manual The Advanced Parking Guidance is deactivated because the
area around the sensors in the front or the rear bumper is
dirty.
X
Clean the front and rear bumper ( Y page 406). The Advanced Parking Guidance is deactivated because the
battery voltage is insufficient.
X
Have the battery checked at an authorized Mercedes-Benz
Center. The Advanced Parking Guidance is switched off because the
radar sensor system is temporarily inoperative due to
electromagnetic interference near television and radio
transmitter
stations,
toll stations, speed measuring systems,
etc.
X Wait to see if the interference is temporary. Try in a location
where the interfering source might not be present. Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X SolutionsWheel
Sensor(s) Missing At least one sensor is defect (e.g. battery is empty).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. At least one wheel without appropriate wheel sensors is
mounted (e.g. spare wheel).
The respective tire is indicated by
– – instead of the tire
inflation pressure in the multifunction display.
X Have the Advanced TPMS checked at an authorized
Mercedes-Benz Center.
X Have the wheel sensors installed at an authorized
Mercedes-Benz Center. Tire
Pressure
Monitor Currently
Unavailabl
e The Advanced TPMS cannot monitor the tire inflation pressure
due to a nearby radio interference source or insufficient
power supply.
As
soon
as the causes of the malfunction have been rectified,
the Advanced TPMS becomes active again automatically after
a few minutes of driving. Tire
Pressure
Please
Rectify The tire inflation pressure is too low in at least one tire.
or
The tire inflation pressures of the individual tires differ from
each other significantly.
The tire inflation pressure values are shown in the
multifunction display.
X
Check and correct tire inflation pressure as required
(Y page 377).
X Restart the Advanced TMPS ( Y page 380).Caution
Tire
Defect At least one tire is deflating.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 465). Vehicle status messages in the multifunction display
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Page 443 of 500

Display messages
Possible causes/consequences and
X Solutions Key Not
Detected
(message
appears in
red) The SmartKey with KEYLESS-GO is not detected while the
engine
is
running because the SmartKey is not in the vehicle.
X Stop the vehicle as soon as it is safe to do so.
X Engage the electronic parking brake.
X Search for the SmartKey.
The vehicle cannot be locked centrally nor can the engine
be started again after the engine is stopped. Â Key Not
Detected
(message
appears in
red) The SmartKey with KEYLESS-GO is not detected while the
engine is running because there is strong radio-frequency
interference.
X
Stop the vehicle as soon as it is safe to do so.
X Engage the electronic parking brake.
X Remove the KEYLESS-GO button from the starter switch
(Y page 263).
X Operate the vehicle with the SmartKey in the starter switch. Â Key Not
Detected
(message
appears in
red) The SmartKey with KEYLESS-GO is momentarily not detected.
X
Change the position of the SmartKey in the vehicle.
X If necessary, remove the KEYLESS-GO button from the
starter switch ( Y page 263).
X Operate the vehicle with the SmartKey in the starter switch. Â Key Not
Detected
(message
appears in
white) The SmartKey with KEYLESS-GO is momentarily not detected.
X
Change the position of the SmartKey in the vehicle.
X If necessary, remove the KEYLESS-GO button from the
starter switch ( Y page 263).
X Operate the vehicle with the SmartKey in the starter switch. Â Key Being
Initialize
d… Please
Wait The SmartKey with KEYLESS-GO is being initialized in the
vehicle.
X
Wait until the message disappears from the multifunction
display. Â Remove
'Start'
Button
and
Insert Key The KEYLESS-GO system is malfunctioning.
X
Remove the KEYLESS-GO button from the starter switch
(Y page 263).
X Operate the vehicle with the SmartKey in the starter switch. ¥ Check
Washer
Fluid The water level has dropped to approximately 1.1 US qts
(1.0 l).
X
Add washer fluid ( Y page 372). Vehicle status messages in the multifunction display
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