2017 MERCEDES-BENZ CLA brake sensor

Blootooth ®
Connecting a different mobile
phone ............................................ 232
Bluetooth ®
Searching for a mobile phone ........ 231
see also Digital Operator's Man-
ual .................................................. 227
Telephony ...................................... 230
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 194
Notes ............................................. 312
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulbs ............................. 105
Brake lamps
Display message ............................ 199
Brakes
ABS .................................................. 60
BAS .................................................. 60
Brake fluid (notes) ......................... 312
Braking assistance appropriate to
the situation ..................................... 62
Display message ............................ 189
EBD .................................................. 66
Hill start assist ............................... 124
HOLD function ............................... 156
Important safety notes .................. 145
Maintenance .................................. 146
Parking brake ................................ 141
Riding tips ...................................... 145
Warning lamp ................................. 217
Braking assistance appropriate to
the situation
Function/notes ................................ 62
Breakdown
Where will I find...? ........................ 266
see Flat tire
see Tow-starting
see Towing away
Buttons on the steering wheel ......... 175 C California
Important notice for retail cus-
tomers and lessees .......................... 24
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 259
Carpets .......................................... 265
Display ........................................... 263
Exhaust pipe .................................. 263
Exterior lights ................................ 262
Gear or selector lever .................... 264
Interior ........................................... 263
Matte finish ................................... 261
Notes ............................................. 259
Paint .............................................. 260
Plastic trim .................................... 263
Power washer ................................ 260
Rear view camera .......................... 262
Roof lining ...................................... 265
Seat belt ........................................ 264
Seat cover ..................................... 264
Sensors ......................................... 262
Steering wheel ............................... 264
Trim pieces .................................... 264
Washing by hand ........................... 260
Wheels ........................................... 261
Windows ........................................ 261
Wiper blades .................................. 262
Wooden trim .................................. 264
Cargo compartment enlargement ... 236
Cargo tie down rings ......................... 237
CD
see also Digital Operator's Man-
ual .................................................. 227
CD player (on-board computer) ........ 180
Center console
Lower section .................................. 35
Upper section .................................. 34
Central locking
Automatic locking (on-board com-
puter) ............................................. 184
Locking/unlocking (SmartKey) ........ 69
Change of address .............................. 256
Index

OCS
Conditions ....................................... 47
Faults ............................................... 50
Operation ......................................... 47
System self-test .............................. .4 9
Odometer .......................................... .1 77
On-board computer
AMG menu ..................................... 185
Assistance graphic menu .............. .1 82
Assistance menu ........................... 182
Audio menu ................................... 180
Convenience submenu .................. 185
Display messages .......................... 188
Displaying a service message ....... .2 58
Factory settings ............................ .1 85
Important safety notes .................. 174
Instrument cluster submenu .......... 183
Lighting submenu .......................... 184
Menu overview .............................. 177
Message memory .......................... 188
Navigation menu ............................ 178
Operation ....................................... 175
RACETIMER ................................... 186
Service menu ................................. 183
Settings menu ............................... 183
Standard display ............................ 177
Telephone menu ............................ 180
Trip menu ...................................... 177
Vehicle submenu ........................... 184
Video DVD operation ..................... 180
Opening and closing the side trim
panels ................................................. 105
Operating safety
Declaration of conformity ................ 26
Important safety notes .................... 26
Operating system
see On-board computer
Operation
Digital Operator's Manual ................ 22
Operator's Manual
Vehicle equipment ........................... 24
Outside temperature display ........... 174
Overhead control panel ...................... 38
Override feature
Rear side windows ........................... 59 P Paint code number ............................ 308
Paintwork (cleaning instructions) ... 260
Panic alarm .......................................... 39
Panorama roof with power tilt/
sliding panel
Important safety notes .................... 84
Operating ......................................... 85
Operating the roller sunblinds for
the sliding sunroof ........................... 86
Problem (malfunction) ..................... 88
Reversing feature ............................. 85
Parking
Important safety notes .................. 140
Parking brake ................................ 141
Parking position for the exterior
mirror on the front-passenger
side .................................................. 97
Rear view camera .......................... 166
Parking aid
see Exterior mirrors
see Rear view camera
Parking Assist PARKTRONIC
Deactivating/activating ................. 161
Driving system ............................... 160
Function/notes ............................. 160
Important safety notes .................. 160
Problems (malfunctions) ................ 162
Sensor range ................................. 160
Warning display ............................. 161
Parking brake
Applying automatically ................... 142
Applying or releasing manually ...... 141
Display message ............................ 191
Electric parking brake .................... 141
Emergency braking ........................ 142
General notes ................................ 141
Releasing automatically ................. 142
Warning lamp ................................. 222
Parking lamps
Switching on/off ........................... 100
Parking Pilot
Canceling ....................................... 166
Detecting parking spaces .............. 163
Display Message ............................ 206
Exiting a parking space .................. 165
Function/notes ............................. 16214
Index

Turn signals (front) ........................ .1 05
Turn signals (rear) .......................... 105
Reporting safety defects .................... 27
Rescue card ......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 204
Warning lamp ................................. 222
see Fuel
Residual heat (climate control) ....... .1 18
Restraint system
Display message ............................ 195
Introduction ..................................... 39
Warning lamp ................................. 222
Warning lamp (function) ................... 40
Reverse gear (selector lever) ........... 131
Reversing feature
Panorama sliding sunroof ................ 85
Roller sunblind ................................. 86
Side windows ................................... 81
Roadside Assistance (breakdown) .... 25
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 86
Roof carrier ........................................ 238
Roof lining and carpets (cleaning
guidelines) ......................................... 265
Roof load (maximum) ........................ 314
Route guidance
see also Digital Operator's Man-
ual ................................................. .2 27
S
Safety
Children in the vehicle ..................... 53
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 232
Inserting/removing ........................ 232
Removing ....................................... 232
SD memory card
see also Digital Operator's Man-
ual ................................................. .2 27 Search & Send
see also Digital Operator's Man-
ual ................................................. .2 27
Seat belts
Adjusting the height ......................... 43
Cleaning ......................................... 264
Correct usage .................................. 42
Fastening ......................................... 43
Important safety guidelines ............. 41
Introduction ..................................... 40
Releasing ......................................... 43
Warning lamp ................................. 216
Warning lamp (function) ................... 43
Seats
Adjusting (electrically) ..................... 91
Adjusting (manually) ........................ 90
Adjusting (Performance Seat) .......... 93
Adjusting the 4-way lumbar sup-
port ................................................. .9 2
Adjusting the head restraint ............ 91
Cleaning the cover ......................... 264
Correct driver's seat position ........... 89
Folding the backrest (rear com-
partment) forwards/back .............. 236
Important safety notes .................... 89
Seat heating problem ...................... 94
Storing settings (memory func-
tion) ................................................. 98
Switching seat heating on/off ......... 93
Securing cargo .................................. 237
Selector lever
Cleaning ......................................... 264
Sensors (cleaning instructions) ....... 262
Service menu (on-board com-
puter) .................................................. 183
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 312
Coolant (engine) ............................ 312
Eng i
ne oil ....................................... 311
Fuel ................................................ 309
Important safety notes .................. 309
Refrigerant (air-conditioning sys-
tem) ............................................... 313
Washer fluid ................................... 313
Setting the air distribution ............... 11516
Index

Important safety notes
i Observ e th e "Importan t safet y notes" sec -
tion ( Y
page 60).
G WARNIN G
If BA S is malfunctioning , th e braking distanc e
in an emergenc y braking situation is
increased. Ther e is a ris k of an accident.
In an emergenc y braking situation , depress
th e brak e pedal wit h full force . AB S prevents
th e wheels from locking.
Braking X
Kee p th e brak e pedal firmly depressed until
th e emergenc y braking situation is over.
AB S prevents th e wheels from locking.
The brakes will function as usual once you
release th e brak e pedal . BA S is deactivated.
Active Brake Assist
General information
i Observ e th e "Importan t safet y notes" sec -
tion ( Y
page 60).
Active Brake Assist consist s of a distanc e warn -
ing function wit h an autonomous braking func-
tion and braking assistanc e appropriat e to th e
situation .
Active Brake Assist can help you to minimiz e th e
ris k of a collision wit h th e vehicl e traveling in
fron t or reduce th e effects of suc h a collision .
If Active Brake Assist detects that there is a ris k
of collision , you will be warned visually and
acoustically. If you do no t reac t to th e visual and
audible collision warning , autonomous braking
can be initiate d in critical situations. If you apply
th e brak e yourself in a critical situation , Adap-
tive Brake Assist support s you wit h braking
assistanc e appropriat e to th e situation .
Important safety notes
Detection of hazardous situation s can be par-
ticularly impaired by: R
there is dirt on th e sensor s or anythin g else
covering th e sensor sR
there is snow or heav y rainR
there is interferenc e by other radar source s R
there are stron g radar reflections, for exam-
ple in parking garages R
a narrow vehicl e is traveling in front, e.g. a
motorbike R
a vehicl e is traveling in fron t on a differen t lin eR
ne w vehicles or after servicing is carrie d out
on th e Active Brake Assist system
Observ e th e important safet y note s in th e
"Breaking-in notes" section ( Y
page 120).
Followin g damag e to th e fron t en d of th e vehicle,
hav e th e configuration and operation of th e
radar sensor checke d at a qualified specialist
workshop. This also applie s to collision s at low
speeds wher e no visible damag e to th e fron t of
th e vehicl e is apparent.
Activating/deactivating Active Brake Assist is active after every ignition
cycle.
You can activat e or deactivat e Active Brake
Assist ( Y
page 182) in th e on-board computer.
When deactivated, th e distanc e warning func-
tion and th e autonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, th e

Braking assistance appropriate to the situation
can also detect stationary objects, up to vehicle
speeds of around 44 mph 70 km/h. X
Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if: R
you release the brake pedal. R
there is no longer any danger of a collision. R
no obstacle is detected in front of your vehi-
cle.
Braking assistance appropriate to the situation
is then deactivated.
Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems ( Y
page 60).
G WARNING
Adaptive Brake Assist does not react: R
to people or animals R
to oncoming vehicles R
to crossing traffic R
when cornering
As a result, Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
G WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist might: R
intervene unnecessarily R
not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
Due to the nature of the system, complex but
non-critical driving conditions may also cause
Active Brake Assist to intervene.
Even if Active Brake Assist is not available due to
a malfunction in the radar sensor system, the brake system is still available with full brake
boosting effect and BAS.
ESP ®
(Electronic Stability Program)
General notes
i Observe the "Important safety notes" sec-
tion ( Y
page 60).
ESP ®
monitors driving stability and traction, i.e.
power transmission between the tires and the
road surface.
If ESP ®
detects that the vehicle is deviating from
the direction desired by the driver, one or more
wheels are braked to stabilize the vehicle. The
engine output is also modified to keep the vehi-
cle on the desired course within physical limits.
ESP ®
assists the driver when pulling away on
wet or slippery roads. ESP ®
can also stabilize
the vehicle during braking.
ETS/4ETS (Electronic Traction System)
i Observe the "Important safety notes" sec-
tion ( Y
page 60).
ETS traction control is part of ESP ®
. On vehicles
with 4MATIC, 4ETS is part of ESP ®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP ®
.
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y
page 60).
G WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop.Driving safety systems 63
Safety Z

take precedence over the daytime running
lamps.
USA only:
The daytime running lamps improve the visibility
of your vehicle during the day. To do this, the
daytime running lamps function must be
switched on using the on-board computer
( Y
page 184).
If the engine is running and you turn the light
switch to the ` or X position, the manual
settings take precedence over the daytime run-
ning lamps.
Low-beam headlamps Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps come on when the ignition is switched on
and the light switch is set to the X position.
This is a particularly useful function in the event
of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi-
tion 2 or start the engine.X
Turn the light switch to X .
The green X indicator 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. Please take note of the country-specific
regulations for the use of rear fog lamps. X
To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2 o r
s
tart the engine. X
Turn the light switch to X or X .X
Press the ^ button.
The yellow ^ indicator lamp in the instru-
ment cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow ^ indicator lamp in the instru-
ment cluster goes out.
i When the rear fog lamp is switched on, the
center brake lamp in the tail lamp switches off
due to a legal requirement.
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 ` parking
lamps over a period of several hours. If pos-
sible, switch on the right-hand d or left-
hand c standing lamps. X
To switch on: turn the light switch to ` .
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated. X
To switch on the standing lamps: the
SmartKey should not be in the ignition lock or
it should be in position 0 .X
Turn the light switch to c (l eft-hand side of
the vehicle) or d (right-hand side of the
vehicle).
Combination switch
X
To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow D or

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 vehicle
has 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. R
You should therefore drive at varying vehicle
and engine speeds for the first 1000 miles
(1500 km). R
Avoid heavy loads, e.g. driving at full throttle,
during this period. R
Change gear in good time, before the tach-
ometer needle is

R
ESP ®
intervenes or you deactivate ESP ®
R
you shift the transmission to position N while
driving
If cruise control is deactivated, you will hear a
warning tone. You will see the Cruise Con‐
trol Off message in the multifunction display
for approximately five seconds.
i When you switch off the engine, the last
speed stored is cleared.
Distance Pilot DISTRONIC
General notes Distance Pilot DISTRONIC regulates the speed
and automatically helps you maintain the dis-
tance to the vehicle detected in front. Vehicles
are detected with the aid of the radar sensor
system. Distance Pilot DISTRONIC brakes auto-
matically to avoid exceeding the set speed or to
maintain the designated distance from the vehi-
cle in front.
If Distance Pilot DISTRONIC detects that there is
a risk of a collision, you will be warned visually
and acoustically. Without your intervention, Dis-
tance Pilot DISTRONIC cannot prevent a colli-
sion. An intermittent warning tone will then
sound and the distance warning lamp will light
up in the instrument 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.
Distance Pilot DISTRONIC operates in the range
between 0 mph (0 km/h) and 120 mph
(200 km/h).
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 qui ckly.
Do not use Distance Pilot DISTRONIC on roads
with steep gradients.
For Distance Pilot DISTRONIC to assist you
when driving, the radar sensor system must be
operational.
Since Distance Pilot DISTRONIC transmits radar
waves, it can resemble the radar detectors of
the responsible authorities. You can refer to the
relevant chapter in the Operator's Manual if
questions are asked about this. i USA 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.
i Canada 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, tam peri ng, or altering of the device
w
ill 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 void the user's authority to operate the
equipment.
Important safety notes
G WARNING
Distance Pilot DISTRONIC does not react to: R
people or animals R
stationary objects on the road, e.g. stopped
or parked vehicles R
oncoming vehicles and crossing traffic
As a result, Distance Pilot DISTRONIC 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.
G WARNING
Distance Pilot DISTRONIC cannot always
clearly identify other road users and complex
traffic situations.150
Driving system s
Dr ivi ng an d parking