Driving sys
tems 160
If there is an obstacle within this range, all
warning displays light up and a tone sounds.
If the distance falls below the minimum clear-
ance, it may no longer be shown.
Warning displays The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the centre air vents.
The warning display for the rear area is in the
roof trim at the rear. Front area warning display
1
Left-hand side of the vehicle
2 Right-hand side of the vehicle
3 Indicator segments The warning display for each side of the vehi-
cle is divided into five yellow and two red
segments. Parktronic is operational if yellow
indicator segments
3light up.
The gear lever or selector lever position*
determines which warning display is active:
Manual transmission: Gear lever in Warning display
Forwards gear
or
Neutral Front area activated
Reverse gear Rear and front areas
activated
Automatic transmission*:
Selector lever at Warning display
D Front area activated
R
or N Rear and front areas
activated
P No areas activated One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R
sixth segment onwards, you will hear an
intermittent warning tone for approxi-
mately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. You have reached the minimum dis-
tance.
Deactivating/activating Parktronic 1
To deactivate/activate Parktronic
2 Indicator lamp
If indicator lamp 2is on, Parktronic is deac-
tivated. Controls
* optional
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Care
245H
Environmental note
Dispose of empty packaging, cleaning
cloths and polishing wads in an environ-
mentally responsible manner.
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces, otherwise you could
damage the paintwork. Vehicle care
! Do not park the vehicle for a long period
of time directly after cleaning, especially if
the wheels have just been cleaned with a
wheel cleaner. Wheel cleaners could cause
rapid corrosion of the brake discs and
brake pads/linings. After cleaning, park
the vehicle when it is at normal operating
temperature. Automatic car wash G
Risk of accident
The vehicle is braked when HOLD is activa-
ted. Therefore, deactivate HOLD before the
vehicle is washed in an automatic car wash.
You can wash the vehicle in an automatic car
wash from the very start.
! Do not use a touch-free automatic car
wash that uses chemical agents to wash
the vehicle.
Preferably use one with high-pressure jets for
prewashing.
If the vehicle is very dirty, prewash it before
cleaning it in an automatic car wash.
! Make sure that the automatic car wash is
suitable for the size of the vehicle. Fold in
the exterior mirrors before the vehicle is
washed. There is otherwise a risk of dam-
age to the exterior mirrors.
! Make sure the side windows are com-
pletely closed, the ventilation/heater
blower is fully turned off and the wind-
screen wiper switch is set to 0. The rain
sensor may otherwise be activated, for
instance, leading to inadvertent wiper sweeps being triggered. This could cause
damage to the vehicle.
After using an automatic car wash, wipe any
wax and drying agents off the windscreen and
the wiper blades. This will prevent smears and
reduce wiping noises caused by residue on
the windscreen.
High-pressure cleaners G
Risk of accident
Do not use high-pressure cleaners with cir-
cular-jet nozzles (dirt grinders) to clean
your vehicle or - especially - the tyres. You
could otherwise damage the tyres and
cause an accident.
! Observe the instructions issued by the
equipment manufacturer concerning the
distance to be maintained between the
nozzle of the high-pressure cleaner and the
vehicle (at least 30 cm).
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door joint
R electrical components Operation
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Care
248Use the chrome cleaning agent recommen-
ded by Mercedes-Benz for cleaning. Infor-
mation about chrome cleaning agents can
be obtained from any Mercedes-Benz
Service Centre.
Cleaning Distronic* 1
Distronic* cover
X Turn the key to position 0in the ignition
lock.
X Clean cover 1in the radiator grille with
water, car shampoo and a soft cloth.
! Do not use dry, coarse or hard cloths and
do not scrub. Doing so will scratch or dam-
age the surfaces. Cleaning Parktronic* The sensors are located in the front and rear
bumpers.
1
Parktronic* sensors in the front bumper
(left-hand side)
X Clean sensors 1in the bumper with water,
car shampoo and a soft cloth.
! Do not use dry, coarse or hard cloths and
do not scrub. You will otherwise scratch or
damage the sensors. If you intend to use a
high-pressure cleaner or a steam cleaner to
clean the sensors, observe the instructions
issued by the equipment manufacturer
concerning the distance to be maintained
between the nozzle of the high-pressure
cleaner and the vehicle. Trailer coupling*
The ball coupling must be cleaned if it
becomes dirty or corroded.
X Remove any rust using a wire brush.
X Remove dirt with a clean, lint-free cloth or
a brush.
! Do not clean the ball coupling with a high-
pressure cleaner. Do not use solvents. 1
Ball neck head
X After cleaning, lightly oil or grease ball cou-
pling 1.
X Check that the vehicle's trailer coupling is
working properly. Operation
* optional
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Display
messages 260 Display messages Possible cause/consequence Possible solution
DISTRONIC currently unavail-
able See Owner's
Manual
Distronic
* is deactivated and is tempora-
rily inoperative, if:
R the Distronic* cover in the radiator
grille is dirty
R its function is impaired due to heavy
rain, snow or fog.
R the radar sensor system is temporarily
unavailable, e.g. because of electro-
magnetic radiation.
R the radar sensor system has not detec-
ted any vehicles or stationary objects,
e.g. traffic signs, for a long time.
R the system has overheated. Distronic* is available again and the display mes-
sage disappears when the dirt (e.g. slush) falls off
while you are driving or if the system detects that
the sensors are fully available again.
If the display message does not disappear:
X
Clean the Distronic* cover in the radiator grille
(Y page 248).
X If necessary, wait until the system has cooled
down.
X Restart the engine. ESP inoperative See
Owner's Manual
G
Risk of accident
ESP ®
and therefore also Brake Assist and
PRE-SAFE ®
are unavailable due to a mal-
function. The vwarning lamp also
lights up in the instrument cluster.
The brake system is still available with
complete brake boosting effect. X
Drive on carefully.
X Visit a qualified specialist workshop. Practical advice
* optional
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Display
messages 262 Display messages Possible cause/consequence Possible solution
PRE-SAFE inoperative See
Owner's Manual
G
Risk of injury
PRE-SAFE ®
has failed. All other occupant
safety systems, e.g. airbags, remain avail-
able. X
Visit a qualified specialist workshop. Tyre pressure displayed only
after driving for a
few minutes
The tyre pressure monitor* is measuring
the tyre pressure. X
Drive on.
The tyre pressures will appear in the multi-
function display after you have been driving for
a few minutes. Please correct the tyre pressure
Vehicles with tyre pressure monitor*: the
pressure of one or more tyres is too low
or the tyre pressures of the individual
wheels display a large discrepancy. X
Check the tyre pressure at the next opportunity
and correct it if necessary ( Ypage 229). Tyre pressure
monitor inoperative
The tyre pressure monitor* is malfunc-
tioning. X
Have the tyre pressure monitor* and wheels
checked at a qualified specialist workshop. Tyre pressure
monitor inoperative No
wheel sensors
The tyre pressure monitor* is deactivated
because the vehicle is fitted with wheels
that do not have suitable wheel sensors. X
Have wheels with suitable wheel sensors fitted
at a qualified specialist workshop.
Once wheels with the correct wheel sensors
have been fitted, the tyre pressure monitor*
reactivates automatically after a few minutes
of driving. Practical advi
ce
* optional
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Display
messages 263Display messages Possible cause/consequence Possible solution
Tyre press.
mon. Wheel sensor miss-
ing The tyre pressure monitor* is not receiv-
ing a signal from at least one wheel
because a wheel has been fitted which
does not have suitable sensors (e.g. the
spare wheel). Or there is a malfunction in
at least one wheel sensor.
A line is displayed in the multi-function
display for the tyre concerned instead of
the tyre pressure value. X
Have the tyre pressure monitor* and wheels
checked at a qualified specialist workshop.
Once wheels with suitable wheel sensors have
been fitted again, the tyre pressures are dis-
played in the multi-function display after driv-
ing for a few minutes. Tyre pressure
monitor currently unavail-
able The tyre pressure monitor* is temporarily
deactivated. The voltage of the vehicle's
electrical system is too low or radio inter-
ference prevents the reception of sensor
signals. X
Drive on.
Once the causes have been eliminated, the tyre
pressure monitor* automatically reactivates
after a few minutes of driving. Practical advi
ce
* optional
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Display
messages 273Display messages Possible cause/consequence Possible solution
. Trailer Left-hand
tail lamp
or
Trailer Right-hand
tail lamp The left-hand or right-hand trailer tail lamp
is faulty. X
Replace the bulb. . AUTO lights inop-
erative The light sensor is faulty. Constant head-
lamp mode is switched on. X
Switch the lights to manual control in the on-
board computer (Y page 135).
X Switch the lights on and off using the light
switch. . Rear left turn sig-
nal Back-up bulb on
or
Rear right turn
signal Back-up
bulb on The rear left-hand or rear right-hand turn
signal is faulty. X
Visit a qualified specialist workshop. . Turn signal in
left-hand mirror
or
Turn signal in
right-hand mirror The turn signal lamp on the left-hand or
right-hand exterior mirror is faulty. This
display message will only appear if all
LEDs have failed. X
Visit a qualified specialist workshop. Practical advi
ce
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Troubleshooting
298 Parktronic*
Problem Possible cause/consequence Suggested solutions
Only the red segments in the
Parktronic warning display are lit.
You also hear a warning tone for
approximately two seconds.
Parktronic is deactivated after
approximately 20 seconds and
the indicator lamp in the Park-
tronic button lights up. Parktronic has malfunctioned
and has switched itself off. X
If problems persist, have Parktronic checked at a qualified spe-
cialist workshop. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The Parktronic sensors are dirty
or there is interference. X
Clean the Parktronic sensors ( Ypage 248).
X Switch the ignition back on. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The problem may be caused by an
external source of radio or ultra-
sound waves. X
See if Parktronic functions in a different location. Practical advice
* optional
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