2015 MERCEDES-BENZ CLA-Class lane assist

Cruise control leve
r .......................173
Deactivating ................................... 176
Display message ............................ 237
Displays in the multifunction dis-
play ................................................ 176
Driving tips ................................... .177
Function/notes ............................ .171
Important safety notes .................. 171
Setting the specified minimum
distance ......................................... 175
Doors
Automatic locking (on-board com-
puter) ............................................. 212
Automatic locking (switch) .............. .82
Central locking/unlocking
(SmartKey) ...................................... .74
Control panel .................................. .36
Display message ............................ 244
Emergency locking ........................... 83
Emergency unlocking ....................... 83
Important safety note s.................... 81
Opening (from inside) ...................... 81
Drinking and driving ......................... 164
Drive program
Automatic ...................................... 154
Display ........................................... 151
Display (DIRECT SELECT lever) ...... 149
Manual ........................................... 155
SETUP (on-board computer) .......... 214
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 291
Driving on flooded roads .................. 168
Driving safety systems
ABS (Anti-lock Braking System) ....... 63
ADAPTIVE BRAK E............................. 70
Adaptive Brake Assist ...................... 66
BAS (Brake Assist System) .............. 64
COLLISION PREVENTION ASSIST
PLUS ................................................ 64
Distance warning function ............... 64
EBD (electronic brake force distri- bution) ............................................. 70
ESP ®
(Electronic Stability Pro-
gram) ............................................... 67
ETS/4ETS (Electronic Traction
System) ........................................... 67 Important safety information ........... 63
Overview .......................................... 63
STEER CONTROL ............................. 70
Driving systems
Active Parking Assist ..................... 184
ATTENTION ASSIST ........................ 192
Blind Spot Assist ............................ 194
Cruise control ................................ 169
Display message ............................ 235
DISTRONIC PLUS ........................... 171
HOLD function ............................... 178
Lane Keeping Assist ...................... 196
Lane Tracking package .................. 194
PARKTRONIC ................................. 181
RACE START (AMG vehicles) .......... 180
Rear view camera .......................... 189
Driving tips
Automatic transmission ................. 152
Brakes ........................................... 165
Break-in perio d.............................. 140
Checking brake lining thickness .... 167
DISTRONIC PLUS ........................... 177
Downhill gradient ........................... 166
Drinking and driving ....................... 164
Driving in winter ............................. 168
Driving on flooded roads ................ 168
Driving on wet roads ...................... 168
Exhaust check ............................... 164
Fuel ................................................ 164
General .......................................... 163
Hydroplaning ................................. 168
Icy road surfaces ........................... 168
Limited braking efficiency on sal-
ted roads ....................................... 166
Snow chains .................................. 321
The first 1000 miles (1500 km) ..... 140
Wet road surface ........................... 166
DVD video
Operating (on-board computer) ..... 207 E
EBD (electronic brake force distri-
bution)
Display message ............................ 220
Function/note s................................ 70
ECO display
Function/note s............................. 165 8
Index

Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 258
Indicator lamps
see Warning and indicator lamps
Instrument cluster
Overview .......................................... 31
Settings ........................................ .211
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 200
Interior lighting
Control .......................................... .116
Emergency lighting ........................ 116
Overview ........................................ 115
Reading lamp ................................. 115 J
Jack Storage location ............................ 300
Using ............................................. 342
Jump starting (engine) ......................309 K
Key positions Start/Stop button .......................... 141
KEYLESS-GO
Convenience closing feature ............ 88
Deactivation ..................................... 75
Locking ............................................ 75
Unlocking ......................................... 75
Kickdown
Driving tips ................................... .153
Manual drive program .................... 157
Knee bag .............................................. 48 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 211
Display message ............................ 236
Function/informatio n.................... 196
Lane Tracking package ..................... 194
Lap time (RACETIMER) ...................... 214LATCH-type (ISOFIX) child seat
anchors
................................................ 58
License plate lamp (display mes-
sage) ................................................... 231
Light function, active
Display message ............................ 232
Light sensor (display message) ....... 232
Lights
Adaptive Highbeam Assist ............. 114
Automatic headlamp mod e............ 110
Cornering light function ................. 113
Fog lamps ...................................... 111
Fogged up headlamp s.................... 115
Hazard warning lamps ................... 113
High beam flashe r.......................... 113
High-beam headlamp s................... 112
Light switch ................................... 110
Low-beam headlamp s.................... 111
Parking lamps ................................ 112
Rear fog lamp ................................ 111
Setting exterior lighting ................. 110
Standing lamps .............................. 112
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 212
Turn signals ................................... 112
LIM indicator lamp
DISTRONIC PLUS ........................... 173
Loading guidelines ............................ 262
Locking
see Central locking
Locking (doors)
Automatic ........................................ 82
Emergency locking ........................... 83
From inside (central locking but-
ton) .................................................. 82
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 213
Low-beam headlamps
Changing bulb s.............................. 118
Display message ............................ 229
Switching on/of f........................... 111
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 100 Index
11

Driving safety systems
Overview of driving safety systems
In this section, you will find information about the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 63)
R BAS (Brake Assist System) (Y page 64)
R COLLISION PREVENTION ASSIST PLUS
(Y page 64)
R ESP ®
(Electronic StabilityProgram)
(Y page 67)
R EBD (Electronic Brake forceDistribution)
(Y page 70)
R ADAPTIVE BRAKE (Y page 70)
R STEER CONTROL (Y page 70) Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of an accident nor
override the laws of physics. Driving safety
systems are merely aids designed to assist
driving. You are responsible for maintaining
the distance to the vehicle in front, for vehicle speed, for braking in good time, and for stay-ing in lane. Always adapt your driving style to
suit the prevailing road and weather condi-
tions and maintain a safe distance from the
vehicle in front. Drive carefully.
The driving safety systems described only
work as effectively as possible when there is
adequate contact between the tires and the
road surface. Please pay special attention to
the notes on tires, recommended minimum
tire tread depths, etc. (Y page 318).
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)
General information ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehi-
cle when braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched on. It goes out when the engine is running.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 63). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid- ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information on the ABS warning lamp (Y page 250) and
display messages which may be shown in the
instrument cluster (Y page 218).
ABS works from a speed of about 5 mph
(8 km/ h), regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently.
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit- uation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a pulsing in the brake pedal. Driving safety systems
63Safety Z

=
Specified minimum distance to the vehi-
cle in front; adjustable
? Own vehicle
X Select the Assistance Info Display
Assistance Info Display
function using the on-board computer
(Y page 209).
Display when DISTRONIC PLUS is activa-
ted
You will initially see the stored speed for
about five seconds when you activate
DISTRONIC PLUS. Assistance graphic
: Vehicle in front, if detected
; Specified minimum distance to the vehi-
cle in front; adjustable
= Own vehicle
? DISTRONIC PLUS active (text only
appears when the cruise control lever is
actuated)
X Select the Assistance Info Display
Assistance Info Display
function using the on-board computer
(Y page 209).
Tips for driving with DISTRONIC PLUS General notes
The following contains descriptions of certain
road and traffic conditions in which you must be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated. Cornering, going into and coming out of a
bend The ability of DISTRONIC PLUS to detect vehi-
cles when cornering is limited. Your vehicle
may brake unexpectedly or late.
Vehicles traveling on a different line DISTRONIC PLUS may not detect vehicles
traveling on a different line. The distance to
the vehicle in front will be too short.
Other vehicles changing lanes Driving systems
177Driving and parking Z

DISTRONIC PLUS has not detected the vehi-
cle cutting in yet. The distance to this vehicle will be too short.
Narrow vehicles DISTRONIC PLUS has not yet detected the
vehicle in front on the edge of the road,
because of its narrow width. The distance to
the vehicle in front will be too short.
Obstructions and stationary vehicles DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the
detected vehicle turns a corner and reveals
an obstacle or stationary vehicle, DISTRONIC PLUS will not brake for these. Crossing vehicles DISTRONIC PLUS may detect vehicles that
are crossing your lane by mistake. Activating
DISTRONIC PLUS at traffic lights with cross-
ing traffic, for example, could cause your vehi-
cle to pull away unintentionally. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep
slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant. 178
Driving systemsDriving an
d parking

Problems with PARKTRONIC
Problem
Possible causes/consequences and
M
MSolutions Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off.
X If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference.
X Clean the PARKTRONIC sensors (Y page 295).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X See if PARKTRONIC functions in a different location. Active Parking Assist
General notes Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC (Y page 181).
Important safety notes Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable. G
WARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at a sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
R where parking or stopping is prohibited
R in front of driveways or entrances and exits
R on unsuitable surfaces 184
Driving systemsDriving and parking

!
Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline. :
Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
; White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static)
= Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
? Yellow lane marking tires at current steer-
ing wheel angle (dynamic) A
Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the
vehicle
B Vehicle center axle (marker assistance)
C Bumper
D Red guide line at a distance of approx-
imately 12 in (0.30 m) from the rear of the
vehicle :
Front warning display
; Additional PARKTRONIC measurement
operational readiness indicator
= Rear warning display
Vehicles with PARKTRONIC: when
PARKTRONIC is operational (Y page 182),
additional measurement operational readi-
ness indicator ;appears in the Audio 20/
COMAND display. If the PARKTRONIC warn-
ing displays are active or light up, warning
displays :and =are also active or light up
correspondingly in the Audio 20/COMAND
display. 190
Driving systemsDriving and parking

X
Stop the vehicle when it is almost exactly in
front of the parking space.
The white lane should be as close to parallel with the parking space marking as possi-
ble. :
White guide line at current steering wheel
angle
; Parking space marking
X Turn the steering wheel to the center posi-
tion while the vehicle is stationary. :
Red guide line at a distance of approx-
imately 12 in (0.30 m) fromthe rear of the
vehicle
; White guide line without turning the steer-
ing wheel
= End of parking space
X Back up carefully until you have reached
the final position.
Red guide line :is then at end of parking
space =. The vehicle is almost parallel in
the parking space. Wide-angle function
:
Symbol for the wide-angle view function
; Own vehicle
= PARKTRONIC warning displays
You can also use the rear view camera to
select a wide-angle view.
When PARKTRONIC is operational
(Y page 182), a symbol for your own vehicle
appears in the Audio 20/COMAND display. If
the PARKTRONIC warning displays are active, warning displays =light up in the Audio 20/
COMAND display in yellow or red respec-
tively. ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways.
It is active in the 37 mph (60 km/h) to
125 mph (200 km/h) range. If ATTEN-
TION ASSIST detects typical indicators of fati- gue or increasing lapses in concentration on
the part of the driver, it suggests taking a
break.
Important safety notes ATTENTION ASSIST is only an aid to the
driver. It might not always recognize fatigue
or increasing inattentiveness in time or fail to
recognize them at all. The system is not a
substitute for a well-rested and attentive
driver. 192
Driving systemsDriving an
d parking