Problems with PARKTRONIC
Problem
Possible causes/consequences and
0050
0050Solutions Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off.
X If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference.
X Clean the PARKTRONIC sensors (Y page 329).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X See if PARKTRONIC functions in a different location. Active Parking Assist
General notes Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC (Y page 195).
Important safety notes Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable. G
WARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at a sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
R where parking or stopping is prohibited
R in front of driveways or entrances and exits
R on unsuitable surfaces 198
Driving systemsDriving and parking
Activating/deactivating the rear view
camera X
To activate: make sure that the SmartKey
is in position 2in the ignition lock.
X Make sure that the Activation by R
Activation by R
gear
gear function is selected in COMAND (see
separate operating instructions).
X Engage reverse gear.
The rear view camera flap opens. The area
behind the vehicle is shown in the
COMAND display with guide lines.
The image from the rear view camera is
available throughout the maneuvering
process.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to Por after
driving forwards a short distance.
Displays in the COMAND display The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline. 0043
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
0044 White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static)
0087 Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
0085 Yellow lane marking tires at current steer-
ing wheel angle (dynamic) 0083
Yellow guide line at a distance of approx-
imately 3 ft (1.0m) from the rear of the
vehicle
0084 Vehicle center axle (marker assistance)
006B Bumper
006C Red guide line at a distance of approx-
imately 12 in (0.30 m) fromthe rear of the
vehicle
The guide lines are shown when the trans-
mission is in position R.
The distance specifications only apply to
objects that are at ground level. 204
Driving systemsDriving an
d parking
Activating the 360° camera using
reverse gear The 360° camera images can be automati-
cally displayed by engaging reverse gear.
X Make sure that the SmartKey is in position
2 in the ignition lock.
X Make sure that the Activation by R Activation by R
gear
gear function is selected in COMAND (see
separate operating instructions).
X To show the 360° camera image: engage
reverse gear.
The area behind the vehicle is shown in the
COMAND display in split-screen mode. You see the top view of the vehicle and the
image from the rear view camera.
Selecting the split-screen and full
screen displays Switching between split screen views:
X To switch to the line with the vehicle icons:
slide 00970052the controller.
X To select a vehicle icon: turn the controller.
Switching to full screen mode:
X 180° View
180° View Turn and press the controller.
i The 180° option is only available in the
following views:
R Top view with picture from the rear view
camera
R Top view with picture from the front cam-
era
Displays in the COMAND display Important safety notes
The camera system may show a distorted
view of obstacles, show them incorrectly or
not at all. Obstacles are not shown by the
system in the following locations:
R under the front and rear bumpers
R very close to the front and rear bumpers
R in close range above the handle on the
trunk lid R
very close to the exterior mirrors
R in the transitional areas between the vari-
ous cameras in the virtual top view
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline.
Top view with picture from the rear view
camera 0043
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
0044 Symbol for the split screen setting with
top view and rear view camera image
0087 Guide line for the maximum steering angle
0085 Yellow lane marking tires at current steer-
ing wheel angle (dynamic)
0083 Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic) Driving systems
209Driving and parking Z
0084
Vehicle center axle (marker assistance)
006B Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the
vehicle
006C Bumper
006D Red guide line at a distance of approx-
imately 12 in (0.30 m) from the rear of the vehicle
The guide lines are shown when the trans-
mission is in position R.
The distance specifications only apply to
objects that are at ground level.
Top view with picture from the front cam-
era 0043
Symbol for the split screen setting with
top view and front camera image
0044 Yellow guide line at a distance of approx-
imately 13 ft (4.0 m)from the front of the
vehicle
0087 Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
0085 Yellow lane marking tires at current steer-
ing wheel angle (dynamic) 0083
Red guide line at a distance of approx-
imately 12 in (0.30 m) from the front of the
vehicle
0084 Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the front of the
vehicle
Top view and enlarged rear view 0043
Symbol for the split screen setting with
top view and rear view camera image
enlarged
0044 Red guide line at a distance of approx-
imately 12 in (0.30 m) from the rear of the
vehicle
This view assists you in estimating the dis-
tance to the vehicle behind you.
i This setting can also be selected as an
enlarged front view. 210
Driving systemsDriving and parking
Display messages
Possible causes/consequences and
0050
0050Solutions 00AB
Vehicle Rising Vehicle Rising
Please Wait Please Wait The vehicle level is too low when the vehicle is stationary. A warn-
ing tone also sounds.
X Do not pull away.
The vehicle level is set when the display message disappears. 00AB
Stop Vehicle Vehi‐ Stop Vehicle Vehi‐
cle Too Low cle Too Low You have pulled away while the vehicle level is still too low.
AIRMATIC sets the vehicle to the selected level after a short
period.
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 Wait until the display message disappears before pulling away. AIRMATIC is defective. A warning tone also sounds.
X Do not drive at speeds above 50 mph (80 km/h).
X Make only slight steering movements. Otherwise, the front
fender or the tires could be damaged if the steering movement
is too large.
X Listen for scraping sounds.
X Pull over and stop the vehicle safely, paying attention to road
and traffic conditions, and select a higher vehicle level.
Depending on the malfunction, it may be possible to raise the
vehicle.
X Visit a qualified specialist workshop. 00AB
Malfunction Malfunction The AIRMATIC function is restricted. The vehicle's handling char-
acteristics may be affected.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. ABC Malfunction
ABC Malfunction
Stop Vehicle Stop Vehicle The Active Body Control (ABC) vehicle level is too low.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
After a few seconds, the vehicle level is adjusted and the display
message disappears. The vehicle is leaking oil.
The display message is shown continuously.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop. Display messages
267On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions The display message is shown continuously.
Active Body Control (ABC) is malfunctioning.
X Do not drive at speeds above 50 mph (80 km/h).
X Make only slight steering movements. Otherwise, the front
fender or the tires could be damaged if the steering movement
is too large.
X Listen for scraping sounds.
X Visit a qualified specialist workshop. ABC ABC
Vehicle
Vehicle Rising
Rising
Please
Please Wait
WaitBriefly
Briefly The vehicle level is too low when the vehicle is stationary. A warn-
ing tone also sounds.
X Do not pull away.
The vehicle level is set when the display message disappears. ABC Malfunction ABC Malfunction The Active Body Control (ABC) function is restricted. The vehicle's
handling characteristics may be affected.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. Active Lane Keep‐
Active Lane Keep‐
ing Assist Cur‐ ing Assist Cur‐
rently rently
Unavailable
Unavailable
See
See Operator's
Operator's Man‐
Man‐
ual
ual Active Lane Keeping Assist is deactivated and temporarily inop-
erative.
Possible causes are:
R the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R there have been no lane markings for an extended period
R the lane markings are worn, dark or covered, e.g. by dirt or snow.
When the causes stated above no longer apply, the display mes-
sage disappears.
Active Lane Keeping Assist is operational again.
If the display message does not disappear:
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 Clean the windshield. Active Lane Keep‐ Active Lane Keep‐
ing Assist Inoper‐ ing Assist Inoper‐
ative ative Active Lane Keeping Assist is defective.
X Visit a qualified specialist workshop. 268
Display
messagesOn-board computer and displays
Tires
Display messages
Possible causes/consequences and
0050
0050Solutions Please Correct
Please Correct
Tire Pressure Tire Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity (Y page 363).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 365).Check Tires
Check Tires The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 166).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 336).
X Check the tire pressure (Y page 363).
X If necessary, correct the tire pressure. Display
messages
273On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions Warning Tire Mal‐
Warning Tire Mal‐
function function The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tire, there is a risk of the following hazards: R a flat tire affects the ability to steer or brake the vehicle.
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 166).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 336). Tire Press. Moni‐ Tire Press. Moni‐
tor Currently tor Currently
Unavailable Unavailable Due to a strong source of radio interference, no signals can be
received from the wheel sensors. The tire pressure monitor is
temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved. TirePress. Sen‐ TirePress. Sen‐
sor(s) Missing sor(s) Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X Have the faulty tire pressure sensor replaced at a qualified spe-
cialist workshop. Tire Pressure Mon‐ Tire Pressure Mon‐
itor Inoperative itor Inoperative
No Wheel Sensors No Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Tire Press. Moni‐ Tire Press. Moni‐
tor Inoperative tor Inoperative The tire pressure monitor is faulty.
X Visit a qualified specialist workshop. 274
Display
messagesOn-board computer and displays