Page 481 of 801

480 Controls in detailDriving systems
Front area:
As soon as the first red segment lights
up, you will hear an intermittent warn-
ing tone for approximately two sec-
onds. Once the second red segment
lights up, you will hear a continuous
warning tone. You have reached the
minimum distance.
Rear area:
As soon as the first red segment lights
up, you will hear an intermittent warn-
ing tone for approximately two sec-
onds. Once the second red segment
lights up, you will hear a continuous
warning tone. You have reached the
minimum distance.Collision warning
Park Assist can detect obstacles from a
considerable distance. If you drive in re-
verse towards an obstacle, you will hear a
warning tone. You must then brake in or-
der to avoid a collision. The warning tone
for a collision will not sound when the vehi-
cle is at a standstill very close to the obsta-
cle. In this case, you will hear a
corresponding tone for the warning indica-
tor in the rear area.Switching Park Assist system on/off
The Park Assist system can be switched off
manually.
The Park Assist button with the indicator
lamp is located on the control panel on the
right-hand side of the instrument cluster.
1Park Assist button
2Indicator lamp
i
During strong rainfall, the warning indicators
and warning tones may be triggered, for exam-
ple, by water splashing into the area of the sen-
sors.
i
During strong rainfall, the collision warning
may be triggered, for example, by water splash-
ing into the area of the sensors.
i
When the indicator lamp is on, the Park
Assist system is switched off.
Page 498 of 801

497 Controls in detail
Driving systems
Indicator and warning lamps
1Yellow indicator lamp/red warning
lamp
Switching on: Make sure that the ra-
dar sensors (
page 307) and Blind
Spot Assist (
page 304) are switched
on.
With the ignition switched on, the warn-
ing lamp1 in the exterior mirror lights
up red.
With the engine running, the indicator
lamp1 in the exterior mirror lights up
yellow up to a speed of 20 mph
(30 km/h).Once a speed above 20 mph (30 km/h)
has been reached and
Blind Spot Assist detects no vehicle in
its range, the indicator lamp1 goes
out
Blind Spot Assist detects another vehi-
cle in its range, the warning lamp1 on
the corresponding side of the vehicle
turns red.Collision warning
If a vehicle is detected in the Blind Spot As-
sist range and you activate the turn signal,
a two-tone warning will sound and the red
warning lamp1 will flash.
Remain on the lane that you are cur-
rently on until traffic conditions permit
to change.
If the turn signal remains on, the red warn-
ing lamp1 will flash to indicate that vehi-
cles have been detected. No further
audible warnings will sound.
Warning!
G
Blind Spot Assist is not active at speeds be-
low approximately 20 mph (30 km/h). You
will not be alerted to the presence of vehi-
cles in the monitored area at these speeds.
It is the driver’s responsibility at all times to
be attentive to road, weather and traffic con-
ditions and to provide the steering, braking
and other driving inputs necessary to retain
control of the vehicle. Failure to do so could
result in recognizing dangers too late, possi-
bly resulting in an accident and serious inju-
ry to yourself and others.
Warning!
G
Do not change lanes or make turns, while
the red warning lamp
1
is flashing. Doing
so could result in an accident and seroius in-
jury to yourself and others.
Page 670 of 801
669 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking Brake
See Oper. Manual
The red indicator lamp for the electronic
parking brake flashes and the yellow warn-
ing 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 or release electronic parking brake
(page 422).
or
Carefully drive off (
page 422).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
(USA only)(Canada only)
Page 671 of 801

670 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking Brake
See Oper. Manual
When you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes for
approx.10 seconds. Afterward, it goes out
or lights up continuously. The yellow warn-
ing lamp for the electronic parking brake
lights up.
The electronic parking brake is malfunction-
ing or overheated for example due to over-
or undervoltage.
Carefully drive off (
page 422).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
In the event of overvoltage or undervoltage:
Remove the cause of the overvoltage or und-
ervoltage, e.g. charge the battery or restart
the engine.
Switch ignition off and back on again, and en-
gage or release electronic parking brake
(page 422).
If the electronic parking brake still cannot be re-
leased:
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
(Continued on next page)
(USA only)(Canada only)
Page 672 of 801

671 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking Brake
See Oper. Manual
If 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
Inoperative
When 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 422).
If the electronic parking brake cannot be en-
gaged:
Shift the automatic transmission to park
positionP (
page 426).
Protect vehicle from rolling away while
parked by using a chock from the vehicle tool
kit (
page 707).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 677 of 801
676 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
STOP,
Car Too Low
You have started driving although the vehi-
cle level was too low.
The vehicle will be raised. The Airmatic
warning lamp goes out after several sec-
onds.
Stop your vehicle as soon as it is safe to do
so.
Engage the electronic parking brake
(page 422).
Wait until the message disappears from the
multifunction display.
You may then drive off.
STOP,
Car Too Low
The Airmatic is malfunctioning.
The Airmatic warning lamp lights up contin-
uously.
Stop and press the vehicle level control but-
ton to select a higher vehicle level
(page 468).
Do not turn steering wheel too far to avoid
damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph (80 km/h).
Contact an authorized Mercedes-Benz
Center as soon as possible.
There is otherwise danger of an accident.
Page 690 of 801

689 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Right Mirror
Turn Signal
The turn signal in the right exterior rear view
mirror is malfunctioning. This message will
only appear if a critical number of light emit-
ting diodes have stopped working.
Have the LEDs replaced as soon as possible.
Check
Front Left
Turn Signal
The left front turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Turn Signal
The right front turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left High Beam
The left high beam lamp is malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check
Right High Beam
The right high beam lamp is malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check Left
License Plate Lamp
The left license plate lamp is malfunction-
ing.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check Right
License Plate Lamp
The right license plate lamp is malfunction-
ing.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Please
Switch Off Lights
You are getting out of the vehicle and the
lights are still switched on.
Switch off the headlamps (
page 399).
Page 691 of 801

690 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Turn Lights Off
or
Remove Key
The exterior lamp switch is set to * and
you have forgotten to take out the
SmartKey. The parking lamps remain
switched on.
Switch off the headlamps (
page 399).
or
Remove the SmartKey from the starter
switch.
Check
Left Fog Lamp
The left front fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Fog Lamp
The right front fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Left
Fog Lamp
The left rear fog lamp is malfunctioning.
A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Left
Parking Lamp
The left front parking lamp is malfunction-
ing. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Parking Lamp
The right front parking lamp is malfunction-
ing. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left Reverse Lamp
The left backup lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Reverse Lamp
The right backup lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.