Page 615 of 761

614 Practical hints
What to do if …?
Text messages
Display Possible cause/consequencePossible solution
Apply brake
to shift
from 'P'You have tried to shift the auto-
matic transmission to D, R or N
without stepping on the brake.Step on brake.
Child seat
in wrong position
See Oper. Manual
(Canada only)The child seat is not positioned
correctly.Fasten the seat in the correct position.
The sensor for the child seat is
malfunctioning.Have the sensor for child seat detection checked at an authorized
Mercedes-Benz Center.
Cruise control
- - - mph
(USA only)
Cruise control
- - - km/h
(Canada only)You have tried to switch on
cruise control below a speed of
20 mph (30 km/h).Drive faster than 20 mph (30 km/h) and save the speed.
ESP® is switched off.Switch on ESP® (page 75).
The automatic transmission is in
position P, R or N.Shift the automatic transmission toD (page 399).
The system is overheated.Wait until the system cools down.
The vehicle is secured in place
by the electronic parking brake.Release electronic parking brake (page 395).
Cruise control
inoperativeCruise control is malfunction-
ing.Have cruise control checked by an authorized Mercedes-Benz Center.
Page 617 of 761

616 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
DISTRONIC PLUS
overrideYou have depressed the accelerator pedal,
DISTRONIC Plus* is no longer controlling
the speed of the vehicle.Release the accelerator pedal.
DISTRONIC PLUS
- - - mph
(USA only)
Canada only:
DISTRONIC PLUS
- - - km/h
(Canada only)You have attempted to activate DISTRONIC
Plus* at a speed below 20 mph (30 km/h)
without the vehicle in front being displayed
in the multifunction display (
page 427).
Drive faster than 20 mph (30 km/h) and activate DISTRONIC
Plus* again.
ESP® is switched off.Switch on ESP® (page 75).
The automatic transmission is in position P,
R or N.Shift the automatic transmission toD (page 399).
The system is overheated.Wait until the system cools down.
The vehicle is secured in place by the elec-
tronic parking brake.Release electronic parking brake (page 395).
The driver’s door is open and the drivers
seat belt is unbuckled.Close the driver’s door and fasten your seat belt.
The hood is open.Close the hood (page 542).
Page 618 of 761
617 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Door Open
Vehicle not in ParkYou have opened the driver’s
door and the automatic trans-
mission is still in position D, R
orN.Before you leave the vehicle, make sure that the automatic transmission
is shift to park position P (
page 399) and that the electronic parking
brake is engaged (
page 395).
Page 623 of 761

622 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Next Service X
due in ... days
due in ... mls (km)Service X must be carried out in ... days or
after ... miles (kilometers) (
page 582).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Only shift to
position 'P' when
vehicle is stationaryYou have tried to shift the automatic trans-
mission to P using the gear selector lever al-
though the vehicle is still in motion.Stop your vehicle as soon as it is safe to do so.
Shift the automatic transmission to park positionP.
Engage the electronic parking brake (page 395).
Park Assist
currently unavailable
See Oper. ManualPark Assist* is deactivated because the
area around the sensors* in the front or the
rear bumper (
page 590) is dirty.
Clean the front and rear bumper (page 590).
Park Assist* is deactivated because the
battery voltage is insufficient.Have the battery checked by an authorized Mercedes-Benz
Center.
Park Assist* is switched off because the ra-
dar sensor system* is temporarily inopera-
tive due to electromagnetic interference
near television and radio transmitter sta-
tions, toll stations, speed measuring sys-
tems, etc.Wait until the message in the multifunction display disappears.
Park Assist
inoperativePark Assist* is unavailable due to a mal-
function.Contact an authorized Mercedes-Benz Center as soon as pos-
sible.
Page 625 of 761

624 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Shift to P or N
to start engineYou have attempted to start the engine
while the automatic transmission was set to
position R or D.Shift the automatic transmission to P or N (page 399).
Tire pressure
Check tiresThe pressure has fallen significantly in one
or more tires.Carefully bring the vehicle to a halt, avoiding abrupt steering
and braking maneuvers. Observe the traffic situation around
you.
Check and adjust tire inflation pressure as required
(
page 560).
If necessary, change the wheel (page 686).
Reactivate the Run Flat Indicator after adjusting the tire infla-
tion pressure values (
page 566).
Tire pressure monitor
inoperativeThe Advanced TPMS* or a wheel sensor is
malfunctioning.Have the Advanced TPMS* checked by an authorized
Mercedes-Benz Center.
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Page 626 of 761

625 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Tire pressure monitor
inoperative
No wheel sensorsThe Advanced TPMS* is deactivated be-
cause wheels without proper sensors were
installed.Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
As soon as all wheels with sensors have been mounted, the
Advanced TPMS* is switched back on after driving for sever-
al minutes.
Tire pressure monitor
currently unavailableThe Advanced TPMS* is unable to monitor
the tire inflation pressure due to:
a nearby radio interference source
the on-board voltage is too low
excessive wheel sensor temperatures
As soon as the causes for the malfunction are no longer present,
the Advanced TPMS* automatically becomes active again after
a few minutes driving.
Tire pressures
displayed after driving
a few minutesVehicles with Advanced TPMS*:
The tire inflation pressure is being checked.Drive the vehicle for a few minutes.
Visit workshop
without shifting gearsThe automatic transmission cannot be shift-
ed out of the set position because of a mal-
function.If the automatic transmission is shift to drive positionD
(
page 399):
Without changing the automatic transmission from drive
positionD, contact an authorized Mercedes-Benz Center.
If the automatic transmission is shift to positionN, R or P:
Do not drive.
Consult an authorized Mercedes-Benz Center.
Page 638 of 761

637 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Parking brake
See Oper. ManualIf overheated:
Let vehicle cool down, and do not engage
electronic parking brake during this time.
or
Switch ignition off and back on again, and en-
gage or release electronic parking brake.
(USA only)
(Canada only)Parking brake
inoperativeWhen you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes and
goes out after approx. 10 seconds. The yel-
low warning lamp for the electronic parking
brake lights up.
The electronic parking brake is malfunction-
ing.Switch ignition off and back on again, and en-
gage electronic parking brake (
page 395).
If the electronic parking brake cannot be en-
gaged:
Shift the automatic transmission to P
(
page 399).
Protect vehicle from rolling away while
parked by using a chock from the vehicle tool
kit (
page 670).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 659 of 761
658 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Night View Assist
inoperativeNight View Assist* is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Night View Assist
currently unavailableThe temperature of the camera* is too high
(
page 461).
Wait until the message “Night View Assist
available again” appears.
In addition you can:
Swing the camera* cover down
(
page 591).
Adjust the air distribution of the automatic
climate control so that air flows upward
(
page 253).
Night View Assist
Lights must be set
to AUTO or ONYou have tried to switch on Night View As-
sist*, but the light switch is not set to *
or B.Turn the exterior lamp switch to * or
B (
page 371).
Night View Assist
Not in Reverse gearYou have tried to switch on Night View As-
sist* while the automatic transmission was
in position R.Shift the automatic transmission to P, N or D
(
page 399).