sensor MERCEDES-BENZ S-Class COUPE 2017 C217 Owner's Guide

Exterior lighting
General notes
USA only: if you wish to drive during the daytime
without lights, switch off theDaytime Run‐
ning Lightsfunction via the on-board com-
puter (Ypage 201).
Setting the exterior lighting
Setting options
Exterior lighting can be set using:
Rthe light switch (Ypage 104)
Rthe combination switch (Ypage 105)
Rthe on-board computer (Ypage 201)
Light switch
Operation
0047 0063Left-hand standing lamps
00480064Right-hand standing lamps
00490060Parking lamps, license plate and
instrument cluster lighting
004A0058Automatic headlamp mode, controlled
by the light sensor
004B 0058Low-beam/high-beam headlamps
0084005ERear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to the 0058position.
The exterior lighting (except the parking/stand-
ing lamps) switches off automatically if you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey in
position 0in the ignition lock
Automatic headlamp mode
GWARNING
When the light switch is set to 0058, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
0058.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle's light-
ing at all times.
0058 is the favored light switch setting.
The light setting is automatically selected
according to the brightness of the ambient light,
but not in the event of poor visibility due to
weather conditions such as fog, snow or spray.
RWith the SmartKey in position 1in the ignition
lock, the parking lamps are switched on or off
automatically depending on the brightness of
the ambient light.
RUSA only: if you have switched on the Day‐time Running Lightsfunction via the on-
board computer, and the engine is running,
the daytime running lamps or the parking
lamps and low-beam headlamps are switched
on or off automatically depending on the
ambient light.
RCanada only: depending on the ambient light,
the daytime running lamps or the parking and
low-beam headlamps are switched on/off
automatically when the engine is running.
XTo switch on the automatic headlamps:
turn the light switch to the 0058position.
USA only: The daytime running lamps improve
the visibility of your vehicle during the day. Here,
the Daytime Running Lights
function must
be switched on via the on-board computer
(
Ypage 201).
If the engine is running and you turn the light
switch to the 0060or0058 position, the manual
settings take precedence over the daytime run-
ning lamps.
Canada only: The daytime running lamps
improve the visibility of your vehicle during the
day. The daytime running lamps function is
required by law in Canada. It cannot therefore
be deactivated.
104Exterior lighting
Lights and windshield wipers

When the engine is running and the vehicle is
stationary: if you move the selector lever from a
driving position toP, the daytime running lamps
and low-beam headlamps go out after three
minutes.
When the engine is running, the vehicle is sta-
tionary and in bright ambient light: if you turn the
light switch to the 0060position, the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to the 0058position, the manual settings
take precedence over the daytime running
lamps.
Low-beam headlamps
GWARNING
When the light switch is set to 0058, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
0058.
Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps switch on when the ignition is switched on and the light switch is set to the 0058position.
This is a particularly useful function in the event
of rain and fog.
XTo switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi- tion 2or start the engine.
XTurn the light switch to the 0058position.
The green 0058indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. You must observe the legal requirements
for the country in which you are currently driving
when operating the rear fog lamp.
XTo switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2or
start the engine.
XTurn the light switch to the 0058or0058
position.
XPress the 005Ebutton.
The yellow 005Eindicator lamp in the instru-
ment cluster lights up.
Parking lamps
!If the battery charge is very low, the parking
lamps or standing lamps are automatically
switched off to enable the next engine start.
Always park your vehicle safely and in a well lit
area, in accordance with the relevant legal
stipulations. Avoid using the 0060parking
lamps over a period of several hours. If pos-
sible, switch on the right-hand 0064or left-
hand 0063 standing lamps.
XTo switch on the parking lamps: turn the
light switch to the 0060position.
The green 0060indicator lamp on the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated.
XTo switch on the standing lamps: turn the
Smart Key to position 0in the ignition lock or
remove the SmartKey.
XTurn the light switch to the 0063(left-hand
side of the vehicle) or 0064(right-hand side of
the vehicle) position.
Combination switch
0043High-beam headlamps
0044Turn signal, right
Exterior lighting105
Lights and windshield wipers
Z

detects any other vehicles, it reactivates the
high-beam headlamps.
If the reflected light from the high-beam head-
lamps or partial high-beam headlamps from traf-
fic signs is too strong, the lights are automati-
cally dimmed. Glare for the driver caused by the
reflections is thus avoided.
The system's optical sensor is located behind
the windshield near the overhead control panel.
Important safety notes
GWARNING
Adaptive Highbeam Assist Plus does not react
to road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
Plus may not react to road users who do have
lights, or may recognize them too late. In this,
or in similar situations, the automatic high-
beam headlamps will not be deactivated or
will be activated regardless. There is a risk of
an accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist Plus cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist Plus is only an aid.
You are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and traf-
fic conditions.
In particular, the detection of obstacles can be
impaired if:
Rthere is poor visibility, e.g. due to fog, heavy
rain or snow
Rthere is dirt on the sensors or anything else
covering the sensors
Switching Adaptive Highbeam Assist
Plus on/off
XTo switch on: turn the light switch to the
0058 position.
XPress the combination switch forwards
beyond the pressure point (Ypage 105).
The 00CE indicator lamp on the multifunction
display lights up when it is dark and the light
sensor switches on the low-beam headlamps.
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the vehi-
cle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/ h)and no other road
users are detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp on the
instrument cluster also lights up.
If other road users are detected, the partial
high-beam headlamps are automatically
switched on.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or the roads are
adequately illuminated:
The partial high-beam or high-beam head-
lamps are switched off automatically. The
0057 indicator lamp on the instrument cluster
goes out. The 00CEindicator lamp on the
multifunction display remains lit.
XTo switch off: move the combination switch
back to its normal position or move the light
switch to another position.
The 00CE indicator lamp on the multifunction
display goes out.
Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the
headlamp.
Exterior lighting107
Lights and windshield wipers
Z

Interior lighting
Overview of interior lighting
Front overhead control panel
0043003D Left-han dfron treading lamp
00440033 Automatic interio rlighting control
0087004A Frontinterior lighting
00850042 Rear interio rlighting
0083003D Right-hand fron treading lamp
Interior lighting control
General notes
In order to preven tth evehicle's battery from
discharging ,th einterio rlighting function sare
automatically deactivated after som etime
except for when th eSmartKey is in position 2in
th eignition lock.
The color ,brightness, zone and display ligh tfor
th eambien tlighting are set usin gth emultime-
dia system; see th eDigital Operator's Manual.
The interio rlighting control can be operate d
usin gth efron toverhead control panel.
Automatic interior lighting control
XTo switch on or off :press th e0033 button.
When th eautomatic interio rlighting control is
activated, th ebutto nis flus hwit hth eover-
head control panel.
The interio rlighting automatically switches on if
you:
Runlock th evehicl e
Ropenadoor
Rremove th eSmartKey from th eignition loc k
The interio rligh tis activated for ashort while
when th eSmartKey is remove dfrom th eignition lock. This delaye
dswitch-off can be adjusted via
th emultimedia system (see Digital Operator's
Manual).
Manual interior lighting control
XTo switch th efront interior lighting on or
off :press th e004A button.
XTo switch th erea rcompartmen tinterior
lighting on/off: press the0042 button.
XTo switch th ereadin glam pon or off :press
th e003D button.
Replacing bulbs
The fron tand rear ligh tclusters of your vehicl e
are equipped wit hLE Dligh tbulbs .Do no t
replace th eLE Dligh tsource sof your vehicl e
yourself .Contac t aqualified specialist work-
sho pwhic hhas th enecessar yspecialist knowl-
edge and tools to carry out th ewor krequired.
Lamps are an important aspect of vehicl esafety.
You must therefor emak esur ethat these func-
tion correctl yat all times .Hav eth eheadlamp
setting checke dregularly.
Windshield wipers
Switching the windshield wipers
on/off
!
Do no toperate th ewindshield wiper swhen
th ewindshield is dry, as this could damag e
th ewiper blades. Moreover, dust that has col-
lecte don th ewindshield can scratch th eglass
if wipin gtakes plac ewhen th ewindshield is
dry.
If it is necessar yto switch on th ewindshield
wiper sin dry weather conditions, always use
washe rfluid when operating th ewindshield
wipers.
!If th ewindshield wiper sleav esmears on th e
windshield after th evehicl ehas been washe d
in an automatic car wash, wax or other resi-
dues may be th ereason for this. Clean th e
windshield usin gwashe rfluid after washing
th evehicl ein an automatic car wash.
!Intermittent wipin gwit hrain sensor :due to
optical influence sand th ewindshield becom-
ing dirt yin dry weather conditions, th ewind-
108Windshield wipers
Lights and windshield wipers

shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off
the windshield wipers in dry weather.
0047003F Windshield wiper off
00480062Intermittent wiping, normal
00490063Intermittent wiping, frequent
004A00AAContinuous wipe, slow
004B00A9Continuous wipe, fast
008400D3Single wipe
00D4 Wipe with washer fluid
XSwitch on the ignition.
XTurn the combination switch to the corre-
sponding position.
In the 0063or0062 position, the appropriate
wiping frequency is set automatically according
to the intensity of the rain. In the 0063position,
the rain sensor is more sensitive than in the
0062 position, causing the windshield wiper to
wipe more frequently.
The washer fluid is fed through the wiper blades;
when the screen is wiped with washer fluid
00D4, the water is emitted directly from the
blades.
If you push and hold the combination switch
beyond the point of resistance in direction of
arrow 0084, the manual wash program is activa-
ted. If you push and hold the combination switch
briefly beyond the point of resistance in direc-
tion of arrow 0084, the automatic wash program is
activated.
If the wiper blades are worn, the windshield will
no longer be wiped properly. This could prevent
you from observing the traffic conditions.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades, make
sure that you touch only the wiper arm of the
wiper.
!Never open the hood if a windshield wiper
arm has been folded away from the wind-
shield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the
windshield wiper arm without a wiper blade
and it falls onto the windshield, the windshield
may be damaged by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
!Always position the windshield wiper arms
vertically before folding them away from the
windshield. By doing so, you will avoid dam-
age to the hood.
Replacing the wiper blades
Moving the wiper arms to a vertical posi-
tion
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the 00AAposition
on the combination switch.
XPress the Start/Stop button repeatedly until
the windshield wiper starts.
XWhen the wiper arms are vertical to the hood,
press the Start/Stop button.
XFold the wiper arm away from the windshield.
Windshield wipers109
Lights and windshield wipers
Z

Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and driving
safety systems adjusts automatically while a
certain distance is being driven after the vehiclehas been delivered or after repairs. Full system
effectiveness is not reached until the end of this
teach-in procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after several hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its per-
formance in the future.
RYou should therefore drive at varying vehicle
and engine speeds for the first 1000 miles
(1500 km).
RAvoid heavy loads, e.g. driving at full throttle,during this period.
RWhen shifting gears manually, upshift in good
time, before the tachometer needle reaches
00C3 of the way to the red area of the tachom-
eter.
RDo not manually shift to a lower gear to brake
the vehicle.
RTry to avoid depressing the accelerator pedal
beyond the point of resistance (kickdown).
RAll vehicles (except Mercedes-AMG vehi-
cles): ideally, for the first 1,000 miles
(1,500 km), drive in drive program E.
Additional breaking-in notes for Mercedes-AMG vehicles:
RDo not drive faster than 85 mph (140 km/h)
for the first 1,000 miles (1,500 km).
ROnly allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
RChange gear in good time.
RIdeally, for the first 1,000 miles (1,500 km),
drive in program C.
After 1000 miles (1500 km),you can incre
ase
th eengin espeed gradually and accelerate th e
vehicl eto full speed.
You should also observ ethese note son break-
in g in if th eengin eor part sof th edrive train on
your vehicl ehav ebeen replaced. Always observ
eth emaximum permissibl e
speed.
Driving
Imp ortant safety notes
GWARNIN G
Objects in th edriver's footwell can restrict th e
pedal travel or obstruct adepressed pedal .
The operating and roa dsafet yof th evehicl eis
jeopardized. There is aris kof an accident.
Mak esur ethat all objects in th evehicl eare
stowed correctly, and that they canno tente r
th edriver's footwell. Install th efloormats
securel yand as specified in order to ensur e
sufficien tclearance for th epedals. Do no tuse
loos efloormats and do no tplac efloormats on
to pof on eanother.
GWARNIN G
Unsuitable footwear can hinder correc tusage
of th epedals, e.g. :
Rshoes withthick sole s
Rshoes withhigh heels
Rslipper s
There is aris kof an accident.
Wear suitable footwear to ensur ecorrec t
usage of th epedals.
GWARNIN G
If you switch off th eignition while driving,
safety-relevant function sare only available
wit hlimitations, or no tat all. This could affect,
for example, th epowe rsteerin gand th ebrak e
boostin geffect. You will require considerably
mor eeffort to steer and brake. There is aris k
of an accident.
Do no tswitch off th eignition while driving.
GWARNIN G
If th eparkin gbrak ehas no tbeen full y
release dwhen driving, th eparkin gbrak ecan :
Roverheat and caus e afire
Rlose it shold function .
120Driving
Driving and parking

RESP®intervenes or you deactivate ESP®
Ryou shift the transmission to positionNwhile
driving.
If cruise control is deactivated, you will hear a
warning tone. You will see the Cruise Con‐
trol Offmessage in the multifunction display
for approximately five seconds.
When you switch off the engine, the last speed
stored is cleared.
DISTRONIC PLUS
General notes
DISTRONIC PLUS regulates the speed and auto-
matically helps you maintain the distance from
the vehicle detected in front. Vehicles are detec-
ted with the aid of the radar sensor system.
DISTRONIC PLUS brakes automatically so that
the set speed is not exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden. By doing so, you
will make use of the braking effect of the engine.
This relieves the load on the brake system and
prevents the brakes from overheating and wear-
ing too quickly.
If DISTRONIC PLUS detects that there is a risk of a collision, you will be warned visually and
acoustically. DISTRONIC PLUS cannot prevent a
collision without your intervention. An intermit-
tent warning tone will then sound and the dis-
tance warning lamp will light up in the instru-
ment cluster. Brake immediately in order to
increase the distance to the vehicle in front or
take evasive action provided it is safe to do so.
DISTRONIC PLUS operates in the speed range
between 0 mph (0 km/h) and 120 mph
(200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTR ONIC P
LUS transmits radar waves, it
can resemble the radar detectors of the respon- sible authorities. You can refer to the relevant
chapter in the Operator's Manual if questions
are asked about this.
iUSA only: This device has been approved by
the FCC as a "Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
ing, or altering of the device will void any war-
ranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
iCanada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitted.
Do not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could voi d th
e user's authority to operate the
equipment.
Important safety notes
GWARNING
DISTRONIC PLUS does not react to:
Rpeople or animals
Rstationary obstacles on the road, e.g. stop- ped or parked vehicles
Roncoming and crossing traffic
As a result, DISTRONIC PLUS may neither give
warnings nor intervene in such situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
GWARNING
DISTRONIC PLUS cannot always clearly iden-
tify other road users and complex traffic sit-
uations.
In such cases, DISTRONIC PLUS may:
Rgive an unnecessary warning and then
brake the vehicle
Rneither give a warning nor intervene
Raccelerate or brake unexpectedly
There is a risk of an accident.
Driving system s147
Driving an d parking
Z

Continue todrive carefully and beready to
brake, inparticular when warned to dosoby
DI ST RONIC PLU S.
GWARNING
DI ST RONIC PLUS brakes your veh icle with up
to 50 %of the maximum possible deceleration.
If this braking force is insufficient, DISTRONIC
PLUS warns you visually and audibly. There is a risk of an accident.
In such cases, apply the brakes yourself and
try to take evasive action.
!When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat-
ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
DISTRONIC PLUS can neither reduce the risk of
an accident if you fail to adapt your driving style
nor override the laws of physics. DISTRONIC
PLUS cannot take account of road, weather and traffic conditions. DISTRONIC PLUS is only an
aid. You are responsible for maintaining a safe
distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
lane.
Do not use DISTRONIC PLUS:
Rin road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on a different line.
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple, in parking garages
If DISTR
ONIC PLUS no longer detects a vehicle
in front, DISTRONIC PLUS may unexpectedly
accelerate the vehicle to the stored speed.
This speed may:
Rbe too high if you are driving in a filter lane or an exit lane
Rbe so high in the right lane that you pass vehi-cles driving on the left (left-hand drive coun-
tries)
Rbe so high in the left lane that you pass vehi-
cles driving on the right (right-hand drive
countries)
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
0043Activates or increases speed
0044Activates or reduces speed
0087Deactivates DISTRONIC PLUS
0085Activates at the current speed/last stored
speed
0083Sets a specified minimum distance
Activating DISTRONIC PLUS
Activation conditions
To activate DISTRONIC PLUS, the following con-
ditions must be fulfilled:
Rthe engine must be started. It may take up to two minutes after pulling away before
DISTRONIC PLUS is operational.
Rthe electric parking brake must be released.
RESP®must be activated, but not intervening
at present.
RActive Parking Assist must not be activated.
148Driving systems
Driving and parking

Comfort tuning
In comfort mode, the driving characteristics of
your vehicle are more comfortable. Therefore,
select this mode if you favor a more comfortable
driving style. Select comfort mode also when
driving fast on straight roads, e.g. on straight
stretches of highway.
XIf indicator lamp0044is not lit:press but-
ton 0043.
Indicator lamp 0044lights up. Comfort tuning is
selected.
Mercedes-AMG vehicles: theAMG Suspen‐
sion System COMFORTmessage appears in
the multifunction display.
All other models: theAIRMATIC COMFORT
message appears on the multifunction dis-
play.
If the driving speed is higher than 75 mph
(12 0km/ h), the vehicle is automatically low-
ered by another 0.4 in (10 mm) compared to the
normal level in comfort mode.
All vehicles except Mercedes-AMG vehicles:
if the driving speed is higher than 100 mph
(160 km/h) and "Comfort" mode is activated,
the vehicle is automatically lowered by 0.4 in
(20 mm).
Load compensation
The vehicle can compensate differences in the
vehicle level by raising or lowering the axles.
4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are perma-
nently driven. Together with ESP®, it improves
the traction of your vehicle whenever a drive
wheel spins due to insufficient grip. If you fail to adapt your driving style, 4MATIC can
neither reduce the risk of accident nor override
the laws of physics. 4MATIC cannot take
account of road, weather and traffic conditions.
4MATIC is only an aid. You are responsible for
the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
your lane.
If a drive wheel spins due to insufficient grip:
ROnly depress the accelerator pedal as far as
necessary when pulling away.
RAccelerate less when driving.
!Never tow the vehicle with one axle raised.
This may damage the transfer case. Damage
of this sort is not covered by the Mercedes-
Benz Limited Warranty. All wheels must
remain either on the ground or be fully raised.
Observe the instructions for towing the vehi-
cle with all wheels in full contact with the
ground.
In wintry driving conditions, the maximum effect
of 4MATIC can only be achieved if you use winter
tires (M+S tires), with snow chains if necessary.
PARKTRONIC
Important safety notes
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It monitors the area around
your vehicle using six sensors in the front
bumper and six sensors in the rear bumper.
PARKTRONIC indicates visually and audibly the
distance between your vehicle and an object.
PARKTRONIC is only an aid. It is not a replace-
ment for your attention to your immediate sur-
roundings. You are always responsible for safe
maneuvering, parking and exiting a parking
space. When maneuvering, parking or pulling
out of a parking space, make sure that there are
no persons, animals or objects in the area in
which you are maneuvering.
!When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. PARKTRONIC
does not detect such objects when they are in the immediate vicinity of the vehicle. You
could damage the vehicle or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
160Driving systems
Driving and parking

Ultrasonic sources such as an automatic car
wash, the compressed-air brakes on a truck
or a pneumatic drill could cause PARKTRONIC
to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to position D,Ror N
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
Range of the sensors
PARKTRONIC does not take objects into con-
sideration that are:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhanging
loads, truck overhangs or loading ramps.
0043Sensors in the front bumper, left-hand side
(example)
0043Approx. 24 in (approx. 60 cm) (corners)
0044Approx. 32 in (approx. 80 cm) (corners)
0087Approx. 48 in (approx. 120 cm) (center)
0085Approx. 40 in (approx. 100 cm) (center)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them (
Ypage 284).
Minimum distance
CenterApprox. 8 in (approx. 20 cm)
CornersApprox. 6 in (approx. 15 cm)
If there is an obstacle within this range, the rel-
evant warning displays light up and a warning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown.
Driving systems161
Driving and parking
Z