2012 MERCEDES-BENZ CLS-Class ABS

1, 2, 3 ...
12 V socket see Sockets
4ETS
see ETS/4ETS (Electronic
Traction System)
4MATIC off-road system ................... 171
A
ABS (Anti-lock Braking System) Display message ............................ 217
Function/notes ................................ 61
Important safety notes ....................61
Warning lamp ................................. 244
Activating/deactivating cooling
with air dehumidification ................. 122
Active Blind Spot Assist Activating/deactivating (on-
board computer) ............................ 207
Function/information ....................188
Active Driving Assistance package . 187
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 207
Display message ............................ 231
Function/information ....................191
Active Light System
Display message ............................ 226
Active multicontour seat .................... 96
Active Parking Assist Display message ............................ 232
Important safety notes ..................175
Active service system PLUS
see ASSYST PLUS service interval
display
ADAPTIVE BRAKE ................................. 67
Adaptive Highbeam Assist Display message ............................ 226
Function/notes ............................. 109
Switching on/off (on-board
computer) ...................................... 209
Additives (engine oil) ........................ 349
Air bags Display message ............................ 223
Front air bag (driver, front
passenger) ....................................... 40
Important safety notes ....................38
Knee bag .......................................... 40
PASSENGER AIRBAG OFF
indicator lamp .................................. 43
Pelvis air bag ................................... 42
Safety guidelines ............................. 37
Side impact air bag ..........................41
Window curtain air bag ....................42
Air-conditioning system
see Climate control
AIR FLOW ........................................... 123
AIRMATIC Display message ............................ 229
Function/notes ............................. 168
Air pressure
see Tire pressure
Air vents
Glove box ....................................... 128
Important safety notes ..................127
Rear ............................................... 129
Setting ........................................... 127
Setting the center air vents ...........128
Setting the side air vents ...............128
Alarm system
see ATA (Anti-Theft Alarm system)
Alertness Assistant
see ATTENTION ASSIST
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 209
Setting the color (on-board
computer) ...................................... 210
AMG adaptive sport suspension
system ................................................ 170
AMG menu (on-board computer) ..... 213
Anti-lock Braking System see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Anti-theft system
ATA (Anti-Theft Alarm system) .........69
Ashtray ............................................... 264
Assistance menu (on-board
computer) .......................................... 206
ASSYST PLUS see ASSYST PLUS service interval
display 4Index

ATA (Anti-Theft Alarm system)Activating/deactivating ...................69
Function ........................................... 69
Switching off the alarm ....................69
ATTENTION ASSIST
Activating/deactivating .................207
Display message ............................ 229
Function/notes ............................. 180
Audio menu (on-board computer) .... 203
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 226
see Lights
Automatic engine start (ECO start/
stop function) .................................... 136
Automatic engine switch-off (ECO
start/stop function) .......................... 136
Automatic headlamp mode .............. 107
Automatic transmission Automatic drive program ...............144
Changing gear ............................... 142
DIRECT SELECT lever .....................140
Display message ............................ 237
Driving tips .................................... 142
Emergency running mode ..............147
Kickdown ....................................... 142
Manual drive program ....................145
Problem (malfunction) ...................147
Program selector button ................143
Pulling away ................................... 135
Selector lever ................................ 139
Shift ranges ................................... 144
Starting the engine ........................134
Steering wheel paddle shifters ......144
Transmission position display ........140
Automatic transmission
emergency mode ............................... 147
B
Back support see Lumbar support
Backup lamp
Changing bulbs .............................. 113
Display message ............................ 225
Bag hook ............................................ 260
BAS (Brake Assist System) ................. 62
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 62
Battery (key) Checking .......................................... 76
Battery (SmartKey)
Important safety notes ....................76
Replacing ......................................... 76
Battery (vehicle)
Charging ........................................ 304
Display message ............................ 228
Important safety notes ..................302
Jump starting ................................. 305
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating .................207
Notes/function .............................. 184
see Active Blind Spot Assist
Bottle holder ...................................... 263
Brake Assist System see BAS (Brake Assist System)
Brake fluid
Display message ............................ 219
Notes ............................................. 350
Brake fluid level ................................ 284
Brake lamps Display message ............................ 224
Brakes
ABS .................................................. 61
BAS .................................................. 62
BAS PLUS ........................................ 62
Brake fluid (notes) .........................350
Display message ............................ 217
Driving tips .................................... 152
Important safety notes ..................152
Maintenance .................................. 153
Parking brake ................................ 151
Warning lamp ................................. 243
Breakdown
see Flat tire
see Towing away
Bulbs
see Changing bulbs Index5

Distance warning (warning lamp) .... 251
DISTRONIC PLUS Deactivating ................................... 164
Display message ............................ 232
Displays in the multifunction
display ........................................... 163
Driving tips .................................... 164
Function/notes ............................. 157
Important safety notes ..................157
Setting the specified minimum
distance ......................................... 162
Warning lamp ................................. 251
Doors
Automatic locking (on-board
computer) ...................................... 211
Automatic locking (switch) ............... 80
Central locking/unlocking (key) ......72
Control panel ................................... 34
Display message ............................ 238
Emergency locking ........................... 81
Emergency unlocking .......................81
Important safety notes ....................79
Opening (from inside) ......................80
Drinks holder
see Cup holders
Drive program
Automatic ...................................... 144
Display ........................................... 140
Display (DIRECT SELECT lever) ......140
Manual ........................................... 145
SETUP (on-board computer) ..........213
Drive program selector ..................... 143
Driver's door see Doors
Driver's seat
see Seats
Driving abroad
Mercedes-Benz Service .................285
Symmetrical low beam ..................106
Driving safety systems
ABS (Anti-lock Braking System) .......61
ADAPTIVE BRAKE ............................. 67
BAS (Brake Assist System) ..............62
BAS PLUS (Brake Assist System
PLUS) ............................................... 62
Electronic brake force distribution ...67ESP ®
(Electronic Stability
Program) .......................................... 63
ETS/4ETS (Electronic Traction
System) ........................................... 64
Important safety information ...........61
Overview .......................................... 60
PRE-SAFE ®
Brake ............................. 67
Driving systems
Active Blind Spot Assist .................188
Active Driving Assistance
package ......................................... 187
Active Lane Keeping Assist ............191
Active Parking Assist .....................175
AIRMATIC ...................................... 168
AMG adaptive sport suspension
system ........................................... 170
ATTENTION ASSIST ........................180
Blind Spot Assist ............................ 184
Cruise control ................................ 155
Display message ............................ 229
DISTRONIC PLUS ........................... 157
HOLD function ............................... 166
Lane Keeping Assist ......................186
Lane Tracking package ..................184
Night View Assist Plus ...................181
PARKTRONIC ................................. 171
RACE START (AMG vehicles) ..........167
Rear view camera .......................... 178
Driving tips
Automatic transmission .................142
Brakes ........................................... 152
DISTRONIC PLUS ........................... 164
Downhill gradient ........................... 152
Driving abroad ............................... 106
Driving in winter ............................. 154
Icy road surfaces ........................... 154
Limited braking efficiency on
salted roads ................................... 153
Snow chains .................................. 317
Symmetrical low beam ..................106
Wet road surface ........................... 153
DVD audio (on-board computer) ...... 2038Index

U
Unlocking Emergency unlocking .......................81
From inside the vehicle (central
unlocking button) ............................. 80
V
Vanity mirror (in sun visor) .............. 263
Vehicle Correct use ...................................... 23
Data acquisition ............................... 23
Display message ............................ 237
Equipment ....................................... 21
Individual settings ..........................208
Limited Warranty ............................. 23
Loading .......................................... 325
Locking (in an emergency) ...............81
Locking (SmartKey) .......................... 73
Lowering ........................................ 301
Maintenance .................................... 22
Parking for a long period ................ 152
Pulling away ................................... 135
Raising ........................................... 297
Reporting problems .........................23
Towing away .................................. 306
Transporting .................................. 309
Unlocking (in an emergency) ...........81
Unlocking (SmartKey) ......................73
Vehicle battery
see Battery (vehicle)
Vehicle dimensions
see Technical data
Vehicle emergency locking ................ 81
Vehicle identification number see VIN
Vehicle identification plate .............. 345
Vehicle level AIRMATIC ...................................... 168
Vehicle level (display message) ....... 229
Vehicle tool kit .................................. 294
Vehicle weights see Technical data
Video (DVD) ........................................ 204
Video DVD (on-board computer) ...... 204
VIN ...................................................... 345
W
Warning and indicator lamps ABS ................................................ 244
Brakes ........................................... 243
Check Engine ................................. 248
Coolant .......................................... 249
Cruise control ................................ 155
Distance warning ........................... 251
DISTRONIC PLUS ........................... 251
ESP ®
.............................................. 245
ESP ®
OFF ....................................... 246
Fuel tank ........................................ 248
LIM (DISTRONIC PLUS) ..................159
Overview .......................................... 28
PASSENGER AIRBAG OFF
indicator lamp .................................. 43
Reserve fuel ................................... 248
Seat belt ........................................ 241
SPORT handling mode ...................246
SRS ................................................ 247
Tire pressure monitor ....................252
Warranty ............................................ 344
Washer fluid
Display message ............................ 239
see Windshield washer system
Weight
see Technical data
Wheel bolt tightening torque ........... 301
Wheel chock ...................................... 297
Wheels Changing/replacing .......................338
Changing a wheel .......................... 296
Checking ........................................ 315
Cleaning ......................................... 287
Important safety notes ..................314
Mounting a wheel .......................... 299
Removing a wheel ..........................299
Storing ........................................... 339
Tightening torque ........................... 301
Wheel size/tire size .......................339
Window curtain air bag
Display message ............................ 221
Operation ......................................... 42
Windows
Cleaning ......................................... 288
see Side windows Index19

Warning and indicator lampsFunctionPage:÷ ESP®245M
SPORT handling
mode in AMG vehicles
246
;Distance warning251=ESP ®
OFF245?Turn signal108ABrakes (USA only)243BBrakes (Canada only)243CABS244DSRS247ECheck engine248FunctionPageFTire pressure monitor252GSeat belt241HESP ®
on AMG vehicles246ICoolant249JThis lamp has no functionKHigh-beam headlamps108LLow-beam headlamps107MThis lamp has no functionNReserve fuel24828Instrument clusterAt a glance

XTo activate/deactivate: press button ;.
If indicator lamp : is lit, operation of the
rear side windows is deactivated.
Operation is only possible using the
switches in the driver's door. If indicator
lamp : is off, operation is possible using
the switches in the rear compartment.
Panic alarm
X To activate: press ! button : for at
least one second.
An alarm sounds and the exterior lighting
flashes.XTo deactivate: press ! button :
again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the
vehicle.i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause interference,
and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
This device complies with RSS-Gen of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock Braking System)
R BAS ( Brake Assist System)
R BAS PLUS ( Brake Assist System Plus*)
R ESP ®
(E lectronic Stability Program)
R EBD ( Electronic Brake force Distribution)
R ADAPTIVE BRAKE
R PRE-SAFE ®
Brake
60Driving safety systemsSafety

Important safety notesGWARNING
The following factors increase the risk of
accidents:
R Excessive speed, especially in turns
R Wet and slippery road surfaces
R Following another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or prevent
the natural laws of physics from acting on the
vehicle. They cannot increase braking or
steering efficiency beyond that afforded by
the condition of the vehicle brakes and tires
or the traction afforded.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of a vehicle equipped with the
driving safety systems described in this
section must never be exploited in a reckless
or dangerous manner which could jeopardize
the user's safety or the safety of others.
Always adjust your driving style to the
prevailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
If a driving system malfunctions, other driving
safety systems may also switch off. Observe
indicator and warning lamps that may come
on as well as messages in the multifunction
display that may appear.
i Please note that the driving safety
systems described only work as effectively
as possible when there is adequate contact
between the tires and the road surface. Pay
particular attention to the information
regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and
tires" section ( Y page 314).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible.
ABS (Anti-lock Braking System)
Important safety notes
i Observe the "Important safety notes"
section ( Y page 61).
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS works from a speed of about
5 mph(8 km/h) upwards, regardless of road-
surface conditions. ABS works on slippery
surfaces, even when you only brake gently.
GWARNING
If the ABS malfunctions, other driving systems
such as the BAS or the ESP ®
are also switched
off. Observe indicator and warning lamps that
may come on as well as messages in the
multifunction display that may appear.
If the ABS malfunctions, the wheels may lock
during hard braking, reducing the steering
capability and extending the braking distance.
The ! warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
Braking
If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
XIf ABS intervenes: continue to depress the
brake pedal with force until the braking
situation is over.XTo make a full brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an
indication of hazardous road conditions, and
functions as a reminder to take extra care
while driving.
GWARNING
Do not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS
Driving safety systems61SafetyZ

and significantly reduces braking
effectiveness.
BAS (Brake Assist System)
i Observe the "Important safety notes"
section ( Y page 61).
BAS operates in emergency braking
situations. If you depress the brake pedal
quickly, BAS automatically boosts the braking
force, thus shortening the stopping distance.
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
GWARNING
If the BAS malfunctions, the brake system still
functions, but without the additional brake
boost available that the BAS would normally
provide in an emergency braking maneuver.
Therefore, the braking distance may increase.
BAS PLUS (Brake Assist System Plus)
BAS PLUS is only available in vehicles
equipped with DISTRONIC PLUS.
i Observe the "Important safety notes"
section ( Y page 61).
At speeds above approximately
4 mph (7 km/h), BAS PLUS assists you when
braking in hazardous situations and uses the
radar sensor system to evaluate the traffic
conditions.
i This device has been approved by the FCC
as a "Vehicular Radar System". The radar
sensor system is intended for use in an
automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, 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.
With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
At speeds up to approximately
40 mph (70 km/h), BAS PLUS can also detect
stationary obstacles, for example stopped or
parked vehicles.
Should you approach an obstacle and BAS
PLUS has detected a risk of collision, BAS
PLUS calculates the braking force necessary
to avoid a rear-end collision.
R At speeds up to approximately
20 mph(30 km/h) : should you apply the
brakes forcefully, BAS PLUS will
automatically increase the braking force to
a level suitable for the traffic conditions.
R At speeds up to approximately
20 mph(30 km/h) : should you apply the
brakes, BAS PLUS is activated. Braking is
performed as late as possible.
If BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE ®
) are
activated simultaneously.XKeep 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 rear-end
collision.
R no obstacle is detected in front of your
vehicle.
BAS PLUS is then deactivated.
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational, see "Radar sensor system" in the
index.
62Driving safety systemsSafety