Problems with PARKTRONIC
Problem Possible causes/consequences and
0004 Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
Aw
arning tone also
sounds for
approximately
2s econds.
PARKTRONIC is
deactivated after
approximately
20 seconds.
The indicator lamp of
the 000C button lights
up and the red
segments in the
PARKTRONIC warning
display go out. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. The PARKTRONIC
warning displays
implausible distances.
For example, all the
segments may be lit
even though there is no
obstacle present. The PARKTRONIC sensors are dirty or iced up.
X
Clean the PARKTRONIC sensors (Y page 259).
X Turn the key to position 2again in the ignition lock. The license plate or other parts attached near the sensors may
not be secured correctly.
X
Check the license plate and attachment parts near the sensors
for correct seating. An external radio or ultrasonic source may be causing
interference.
X
Check PARKTRONIC functions in a different location. Rear view camera
Important safety notes !
Objects that are not at ground level
appear further away than they actually are,
for example:
R the bumper of the vehicle parked behind
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch R
the tail-end of a truck
R slanted posts
Only use the camera guide lines for
orientation. Do not get any closer to
objects than the lowest horizontal guide
line. You may otherwise damage your
vehicle and/or the object.
The rear view camera is only an aid. It cannot
replace your own awareness of the
immediate surroundings. You are responsible Driving systems
161Driving and parking Z
available from the police and local
authorities.
Observe the following when towing a trailer:
R
Practice driving around bends, stopping
and backing up at a place where there is no
traffic. This enables you to gain experience
and get used to the new handling
characteristics.
R Before driving, check:
-that the trailer tow hitch and ball
coupling are secure
- that the safety switch for a braked trailer
is functioning properly
- that the safety chains are secure and not
damaged
- that the electrical connections are
secure
- that the lights are working
- that the wheels are in good order and the
tire pressure is correct
R Adjust the exterior mirrors to provide an
unobstructed view of the rear sectio nofthe
trailer.
R If the trailer has electronically controlled
brakes, pull the vehicle/trailer
combination away carefully. Brake
manually using the brake controller and
check that the brakes are working.
R Secure the load on the trailer according to
the applicable specifications and current
standards on securing loads
(Y page 234).
R When driving with a trailer, check at regular
intervals that the load is secured and that
the brakes and lights are working.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly and has a
decreased gradient climbing capability and
a longer braking distance.
It is more susceptible to crosswinds and
requires cautious steering. R
If possible, do not brake suddenly, but
rather moderately at first so that the trailer
can activate its brakes. Then increase the
force on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears when driving on
inclines, restrict the shift range. Select shift
range 4,3,2or 1.
Driving in a low gear and at a low speed
reduces the risk of damaging the engine.
R When driving on a downhill gradient, shift
to a low gear and take advantage of the
engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system.
Coolant heat can also be dissipated by
switching the airflow and the temperature
of the heater/air conditioning to the
maximum level. Open the windows if
necessary.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of your vehicle/trailer
combination you need an additional
distance before you can return to your
original lane. Uncoupling
atrailer G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overru nbrake
is engaged.
! Do not disconnect a trailer with an
engaged overru nbrake. Otherwise, your 172
Towing
atrailerDriving an d parking
R
press the 0007reset button
R switch on the lights
The display switches off automatically after
approximately 30 seconds if:
R the vehicle lighting is not switched on.
R the key is in position 0in the ignition lock. Instrument lighting
When the lights are switched on, you can
adjust the brightness of the instrument
cluster lighting using the 000Eand 000Fbuttons.
X To brighten: press the000Ebutton.
X To dim: press the 000Fbutton.
i Vehicles with automatic headlamp mode:
the instrument lighting also adapts to
automatic headlamp mode. Tachometer
! Do not drive in the overrevving range, as
this could damage the engine. H
Environmental note
Avoid driving at high engine speeds. This
unnecessarily increases the fuel consumption
of your vehicle and harms the environmen tas
a result of increased emissions.
The red band in the tachometer indicates the
engine's overrevving range.
To protect the engine, the fuel supply is
interrupted when the red band is reached. Outside temperature
You should pay special attention to road
conditions when temperatures are around
the freezing point.
On vehicles without steering wheel buttons
(Y page 178) and on vehicles with steering
wheel buttons (Y page 182), the outside
temperature display is in the display. Changes in the outside temperature are
displayed after a shor
tdelay. Speedometer
The speed can also be shown in the display.
You can find information on the digital
speedometer for vehicles without steering
wheel buttons under (Y page 178) and for
vehicles with steering wheel buttons under
(Y page 182).
i In some countries, a warning sounds
when the vehicle reaches the maximum
speed limit, e.g. at 75 mph ( 120 km/h). Trip odometer
X To reset: make sure that the display is
showing the trip odometer if you have a
vehicle with steering wheel buttons
(Y page 182).
X Press and hold the 0007reset button until the
trip odometer is reset to 0.0 .
Fuel gage
0005
Fuel gage on vehicles without steering
wheel buttons
0006 Fuel gage on vehicles with steering wheel
buttons Instrument cluster
177On-board computer and displays Z
0026
Fuel fille rflap location indicator 000F: the
fuel filler flap is on the left-hand side. Fuel
filler flap location indicator 001E:the fuel
filler flap is on the right-hand side
0025 Reserve fuel warning lamp (Y page 216)DEF gauge
Vehicles without steering wheel
buttons If the supply of DEF is less than 1.5 US gal
(5.5 l), the 0009indicator lamp lights up and
the 0002dEF Chk display message appears.
If the supply of DEF falls below the reserve
range of 0.8 US gal (3.0 l), the 0009indicator
lamp lights up and the 0002StArtS RExxdisplay message appears. In the display,
xxcorresponds to the number of possible
remaining engine starts (16
to
0 ).
Further information on DEF consumption can
be found in the "Service products and filling
capacity" section (Y page 320).
Vehicles with steering wheel buttons If the supply of DEF is less than 1.5 US gal
(5.5 l), the Check Diesel Exhaust Fluid See Operator's Manual message is shown
in the display.
If the supply of DEF falls below the reserve
range of 0.8 US gal (3.0 l), the 0009xxstarts remaining message is displayed. In
the display, xx corresponds to the number of
possible remaining engine starts (16 to
0 ).
Further information on DEF consumption can
be found in the "Service products and filling
capacity" section (Y page 320). On-board computer (vehicles without
steering wheel buttons)
Operating the on-board computer
General notes The on-board computer is activated as soon
as you turn the key to position
1in the ignition
lock.
The on-board computer shows vehicle
information and settings in the display.
You can control the displaya nd the settings
in the on-board compute rusing the
adjustment buttons on the instrument
cluster.
Standard display 0005
Odometer
0006 Trip odometer
0026 Clock
0025 Outside temperature or digital
speedometer
0023 Fuel gage (Y page 177)
0024 Selector lever position or current shift
range with automatic transmission
(Ypage 138)
X To call up the standard display: turn the
key to position 2in the ignition lock.
X Press the 0004menu button for longer than
one second.
The information shown in the display
changes from the outside temperature to
the digital speedometer. 178
On-board computer (vehicles without steering wheel buttons)On-board computer and displays
Display messages Possible causes/consequences and
0004 Solutions
0002
dEF Chk In addition, the yellow
0018engine diagnosis indicato rlamp and
the yellow 0009DEF indicator lamp light up and a warning tone
sounds.
The DE Freducing agent is contaminated, diluted or is not
compliant with ISO 22241.
After the first message and under normal operating conditions,
you can drive on for up to approximately 50 miles (80 km). Then
a warning tone sequence sounds and the engine can only be
started another 16 times.
X Have the DEFt ank cleaned and refilled at a qualified specialist
workshop as soon as possible. 0002
dEF Chk In addition, the yellow
0009DEFindicato rlamp lights up and a
warning tone sounds.
The DE Fsupply has dropped below 1. 5USgal (5.5l).
After the message appears for the first time, and under normal
driving conditions, the remaining DEFs upply will last for
approximately 1000 miles (1600 km).
After that, th e0.8 US ga l(3.0 l) reserv emark is reached. A warning
tone sequence sounds and th eengine can then only be started
another 16 times.
X add DEF supply (Y page 143).
After topping up, the system check takes approximately
20 seconds. The 0009DEF indicator lamp then goes out. 0002
StArtS RExx In addition, the yellow
0018engine diagnosis indicator lamp and
the yellow 0009DEF indicator lamp light up and a warning tone
sounds. Awarning tone sequence sounds.
Afte rthe message appears for the first time, the engine can only
be started another 16 times.
The number of remaining engine starts xx (16 to
0 ) is shown in the
message every time the engine is started. Once the number 0 is
shown, the engine can no longer be started. The DEF reducing agent is contaminated, diluted or is not
compliant with ISO 22241.
X
Have the DEF tank cleaned and refilled at a qualified specialist
workshop as soon as possible. Display messages
195On-board computer and displays Z
Display messages Possible causes/consequences and
0004 Solutions
The exhaus
tgas aftertreatmen tis malfunctioning or an emission
relevant malfunction has occurred. This malfunction or defect can
damage the exhaust gas aftertreatment.
X Visit a qualified specialist workshop immediately. 0002
StArtS RExx In addition, the yellow
0009DEF indicator lamp lights up and a
warning tone sequence sounds.
The DEF supply has dropped below the 0.8 US gal (3.0 l) reserve
mark.
After the message appears for the first time, the remaining DEF
supply will last for approximately 1000 miles (1600 km). The
engine can then only be started another twenty times.
The number of remaining engine starts xx (16 to
0 ) is shown in the
message every time the engine is started. Once the number 0 is
shown, the yellow 0018engine diagnosis indicator lamp lights up
and the engine can no longer be started.
X Add at least 2.0 US gal (7.6l) of DEF (Y page 143).
After topping up, the system check takes approximately
20 seconds. The 0009DEF indicator lamp then goes out. 196
Display messagesOn-board computer and displays
Display messages Possible causes/consequences and
0004 Solutions
000B
Parking brake
Release brake Additionally, a warning tone sounds.
You are driving with the parking brake applied.
X
Release the parking brake ( Ypage 146). 0014
Seatbelt sys.
Visit workshop The belt system has malfunctioned.
G WARNING
In the event of an acciden torarapid deceleration, the seat belts
either cannot protect you as intended.
There is a risk of injury.
X Consult a qualified specialized workshop as soon as possible. SRS
Restraint system
Visit workshop The restraint systems have malfunctioned.
G WARNING
If SRS is malfunctioning, individual systems could be triggered
inadvertently or might not be triggered at all in the event of an
accident.
There is an increased risk of injury and accidents.
X Drive on with care.
X Visi taqualified specialist workshop immediately. Lights
Display messages Possible causes/consequences and
0004 Solutions
0002
Low beam left The left-hand low beam is faulty
2
.
X Halogen headlamps: replace the bulb as soon as possible
(Y page 98).
X Bi-Xenon headlamps: consult a qualified specialist workshop
as soon as possible. 0002
Low beam right The right-hand low-beam is faulty
2
.
X Halogen headlamps: replace the bulb as soon as possible
(Y page 98).
X Bi-Xenon headlamps: consult a qualified specialist workshop
as soon as possible. 0002
Cornering lt. left The left-hand cornering light is faulty
2
.
X Replace the bulb as soon as possible (Y page 98).2
Depending on the equipment ,the bulb-failure indicator may not be featured for any lamps other than the
turn signals. Display messages
201On-board computer and displays Z
Engine
Display messages Possible causes/consequences and
0004 Solutions
Check Diesel
Exhaust Fluid See
Operator's Manual The Diesel Exhaust Fluid (DEF) supply has dropped below
1.5 US gal (5.5 l).
After the message appears for the first time, and under normal
driving conditions, the remaining DE
Fsupply will last for
approximately 1000 miles (1600 km).
After that, th e0.8 US ga l(3.0 l) reserv emark is reached. A warning
tone sequence sounds and th eengine can then only be started
another 16 times.
X add DEF supply (Y page 143).
After topping up, the system check takes approximately
20 seconds. The display message then disappears. Check Diesel
Exhaust Fluid See
Operator's Manual If the yellow
0018engine diagnosis indicator lamp lights up as
well, the DEF reducing agent is contaminated, diluted or not
compliant with ISO 22241.
After the first message and under normal operating conditions,
you can drive on for up to approximatel y50 miles (80 km). Then
a warning tone sequence sounds and the engine can only be
started another 16 times.
Have the DEF tank cleaned and refilled at a qualified specialist
workshop as soon as possible. 0009
xx
starts remaining The Diesel Exhaus
tFluid (DEF) supply has dropped below the
0.8 US gal (3.0 l) reserve mark.
After the message appears for the first time, the remaining DEF
supply will last for approximately 100 0miles (1600 km). The
engine can the nonly be started another twenty times.
The numbe rofremaining engine starts xx (16 to
0 ) is shown in the
message every time the engine is started. Once the number 0 is
shown, the yellow 0018engine diagnosis indicator lamp lights up
and the engine can no longer be started.
X Add at least 2.0 US gal (7.6l) of DEF (Y page 143).
After topping up, the system chec ktakes approximately
20 seconds. The display message then disappears. 0009
xx
starts remaining In addition, the yellow
0018engine diagnosis indicator lamp lights
up.
Afte rthe message appears for the first time, the engine can only
be started another 16 times.
The number of remaining engine starts xx (16 to
0 ) is shown in the
message every time the engine is started. Once the number 0 is
shown, the engine can no longer be started. 204
Display messagesOn-board computer and displays