
i
When you switch off the engine, the last
speed stored is cleared. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the driver
having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
R the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
R the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
! If the HOLD function is activated, the vehicle
brakes automatically in certain situations.
To prevent damage to the vehicle, deactivate
the HOLD function in the following or other
similar situations:
R when towing the vehicle
R in the car wash
Deactivating the HOLD function (Y page 138).Activation conditions You can activate the HOLD function if:
R the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or your seat belt is
fastened
R the electric parking brake is released
R the transmission position D,Ror Nis engaged
Activating the HOLD function X
Make sure that the activation conditions are
met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until 0043appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically
if:
R you accelerate. On vehicles with automatic
transmission: only when the transmission is in
position Dor R.
R the transmission is in position P.
R you depress the brake pedal again with a cer-
tain amount of pressure until 0043disappears
from the multifunction display.
R you secure the vehicle using the electric park-
ing brake.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake. 138
Driving systemsDriving and parking

R
the range of movement is too small
R the parking space is bordered by an obstacle
which is not clearly defined such as a tree or a
trailer 0043
Detected parking space on the left
0044 Parking symbol
0087 Detected parking space on the right
Parking Pilot is activated automatically when
driving forwards. The system is operational at
speeds of up to approximately 22 mph
(35 km/h). While in operation, the system inde- pendently locates and measures parking spaces on both sides of the vehicle.
Parking Pilot will only detect parking spaces:
R parallel to the direction of travel
R that are at least 59 in (1.5 m) wide
R that are at least 51 in (1.3 m) longer than your
vehicle
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol 0044as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. Park- ing Pilot only displays parking spaces on the
front-passenger side as standard. Parking
spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain activated until you confirm the
use of Parking Pilot by pressing the 0076button
on the multifunction steering wheel.
A parking space is displayed while you are driv- ing past it, and until you are approximately 50 ft
(15 m) away from it.
Pa rking G
WARNING
Parking Pilot merely aids you by intervening
actively in the steering. If you do not apply the brakes yourself, there is the risk of an acci-
dent. Always apply the brakes yourself while
maneuvering and parking.
X Stop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster.
X Shift the transmission to position R.
The Start Parking Pilot?
Start Parking Pilot? Yes: OK Yes: OKNo:
No:
0038 message appears in the multifunction
display.
X To cancel the procedure:press the 0038
button on the multifunction steering wheel or pull away.
or
X To park using Parking Pilot: press the0076
button on the multifunction steering wheel.
The Parking Pilot Active Accelerate Parking Pilot Active Accelerate
and Brake
and Brake Observe Surroundings
Observe Surroundings mes-
sage appears in the multifunction display.
X Let go of the multifunction steering wheel.
X Back up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise Parking Pilot is canceled.
Maneuvering may be required in tight parking
spaces.
X Stop when Parking Assist PARKTRONIC
sounds the continuous warning tone, if not
before.
Maneuvering may be required in tight parking
spaces.
The Parking Pilot Active Select D
Parking Pilot Active Select D
Observe Surroundings Observe Surroundings message appears in
the multifunction display.
X Shift the transmission to position Dwhile the
vehicle is stationary.
Parking Pilot immediately steers in the other
direction.
The Parking Pilot Active Accelerate
Parking Pilot Active Accelerate
and Brake and Brake Observe Surroundings
Observe Surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
X Drive forwards and be ready to brake at all
times.
Maneuvering may be required in tight parking
spaces.
X Stop when Parking Assist PARKTRONIC
sounds the continuous warning tone, if not
before. Driving systems
143Driving and parking Z

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 gear
Activation by R gear
function is selected in the multimedia system; see the Digital Operator's Manual.
X Engage reverse gear.
The area behind the vehicle is shown with
guide lines in the multimedia system display.
The image from the rear view camera is avail-
able 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.
Messages in the multimedia system dis- play 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 bottom- 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 steering
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 of the tires at current
steering wheel angle (dynamic) 0083
Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the vehi-
cle
0084 Vehicle center axle (marker assistance)
006B Bumper
006C Red guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle 146
Driving systemsDriving an
d parking

Route guidance active
No change of direction announced
0043
Distance to destination
0044 Distance to the next change of direction
0087 Current road
0085 "Follow the road's course" symbol
Change of direction without lane recom-
mendation 0043
Road into which the change of direction
leads
0044 Distance to change of direction and visual
distance display
0087 Change-of-direction symbol
When a change of direction is to be made, you
will see symbol 0087for the change of direction
and distance graphic 0044. The distance indicator
shortens towards the top of the display as you
approach the point of the announced change of
direction. The change of direction starts once
the distance display reaches zero.
Change of direction announced with a
lane recommendation 0043
Road into which the change of direction
leads
0044 Distance to change of direction and visual
distance display 0087
Lanes not recommended
0085 Recommended lane and new lane during a
change of direction
0083 Change-of-direction symbol
On multilane roads, new lane recommendations can be displayed for the next change of direction
if the digital map supports this data. During the
change of direction, new lanes may be added.
Lane not recommended 0087: you will not be able
to complete the next change of direction if you
stay in this lane.
Recommended lane and new lane during a
change of direction 0085: in this lane you will be
able to complete the next two changes of direc-
tion without changing lane.
Other status indicators of the naviga-
tion system The navigation system displays additional infor-
mation and the vehicle status.
Possible displays:
R New Route...
New Route... orCalculating Route Calculating Route
A new route is calculated.
R Road Not Mapped
Road Not Mapped
The vehicle position is inside the area of the
digital map but the road is not recognized, e.g.
newly built streets, car parks or private land.
R No Route No Route
No route could be calculated to the selected
destination.
R 004B
You have reached the destination or an inter-
mediate destination. Menus and submenus
159On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions The red
0049(USA only) or 0024(Canada only) indicator lamp flashes
and the yellow 0024warning lamp lights up.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
To apply: X Switch off the ignition and turn it back on.
X Apply the electric parking brake manually.
If the red 0049(USA only) or 0024(Canada only) indicator lamp con-
tinues to flash:
X Do not drive on.
X Secure the vehicle against rolling away (Y page 276).
X Shift the transmission to position P.
X Turn the front wheels towards the curb.
X Consult a qualified specialist workshop. The yellow
0024warning lamp lights up. The red 0049(USA only)
or 0024 (Canada only) indicator lamp flashes for about ten seconds
after the electric parking brake has been applied or released. It then
goes out or remains lit.
The electric parking brake is malfunctioning.
X Switch off the ignition and turn it back on.
X Apply the electric parking brake.
If it is not possible to engage the electric parking brake:
X Shift the transmission to position P.
X Visit a qualified specialist workshop.
If it is not possible to release the electric parking brake manually: X Release the electric parking brake automatically (Y page 130).
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop. The yellow
0024warning lamp lights up. If you manually apply or
release the electric parking brake, the red 0049(USA only) or 0024
(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to apply
the electric parking brake manually.
X Shift the selector lever to P, as the electric parking brake is not
applied automatically.
X Visit a qualified specialist workshop. 172
Display
messagesOn-board computer and displays

Drive system
Display messages
Possible causes/consequences and
0050
0050Solutions 00BD
Check Coolant See Check Coolant See
Operator's Manual Operator's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the cooling
system. The drive system will otherwise be damaged.
X If the coolant needs topping up more often than usual, have the
cooling system checked at a qualified specialist workshop. 003D
See Operator's Man‐ See Operator's Man‐
ual ual The 12 V battery is no longer being charged.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The 12 V battery is no longer being charged and the battery charge
level is too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. High-voltage battery
Display messages
Possible causes/consequences and
0050 0050Solutions 00D9
Battery Reserve Battery Reserve
Level Level The condition of charge of the high-voltage battery has dropped into
the reserve range.
When the remaining range is 0 km, the message appears again. The
power available is then continuously reduced. The reduction in power
is represented in the E-CELL display (Y page 152).
X Charge the high-voltage battery. 00D7
Batterieleistung Batterieleistung
zu
zu
gering, Anhalten,
gering, Anhalten,
sofort laden sofort laden(Battery
capacity too low. Stop
Charge immediately) A warning tone also sounds. The E
‑CELL display (Ypage 152) and the
charge level display (Y page 153) go down to 0. The condition of
charge of the high-voltage battery is so low that operation is no longer
possible. The drive system cannot be restarted.
If you then try to restart the drive system, the Batterieleistung
Batterieleistung zu zu
gering,
gering, Anhalten,
Anhalten, sofort
sofortladen
laden(Battery capacity too low. Stop
Charge immediately) message appears.
X Park the vehicle and charge the high-voltage battery. Display
messages
181On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 00F0
Malfunction Visit Malfunction Visit
Workshop Workshop Malfunctions are present in the drive system and/or in the cooling
system.
X Visit a qualified specialist workshop immediately. Without starting Without starting
engine again, con‐ engine again, con‐
sult workshop sult workshop The vehicle's high-voltage electrical system is malfunctioning. A warn-
ing tone also sounds.
X Do not switch off the drive system.
X Visit a qualified specialist workshop immediately. 00F0
Stop Switch Engine Stop Switch Engine
Off Off There is a serious malfunction in the drive system. A warning tone also
sounds.
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 Do not tow the vehicle.
X Consult a qualified specialist workshop immediately. Driving systems
Display messages
Possible causes/consequences and
0050 0050Solutions 00AD
Attention Assist: Attention Assist:
Take a Break! Take a Break! Based on certain criteria, ATTENTION ASSIST has detected fatigue or
a lack of concentration on the part of the driver. A warning tone also
sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest. 00AD
Attention Assist Attention Assist
Inoperative Inoperative ATTENTION ASSIST is inoperative.
X Visit a qualified specialist workshop. 00D9
Off Off The HOLD function is deactivated. the vehicle is skidding.
A warning tone also sounds.
X Reactivate the HOLD function later (Y page 138). The HOLD function is deactivated. When the brake pedal is firmly
depressed, an activation condition is not fulfilled.
A warning tone also sounds.
X Check the activation conditions for the HOLD function
(Y page 138). 182
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Transmission
Transmission
Not
Notin
in
P Risk of Vehicle
P Risk of Vehicle
Rolling Away Rolling Away The driver's door is open or not fully closed and the transmission is in
position R,Nor D.
A warning tone also sounds.
G WARNING
The vehicle may roll away.
There is a risk of an accident.
X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 128).
X Close the driver's door completely. Service
Service
Required
Required Do
Do
Not Shift Gears
Not Shift Gears
Visit Dealer Visit Dealer You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the trans-
mission from position D.
If transmission position R,Nor Pis selected:
X Secure the vehicle against rolling away (Y page 128).
X Notify a qualified specialist workshop or breakdown service.
X Do not tow the vehicle. Only Shift to 'P' Only Shift to 'P'
when when
Vehicle
Vehicle is
isSta‐
Sta‐
tionary
tionary The vehicle is moving.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the transmission to position P.0065 The tailgate is open.
X Close the tailgate. 0066 The hood is open.
A warning tone also sounds.
G WARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
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 128).
X Close the hood. 0051 At least one door is open. A warning tone also sounds.
X Close all the doors. Display
messages
187On-board computer and displays Z