2015 MERCEDES-BENZ CLA-Class brake fluid

Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 232
see Lights
Automatic car wash (care) ...............292
Automatic engine start (ECO start/
stop function) ................................... .146
Automatic engine switch-off (ECO
start/stop function) .......................... 145
Automatic headlamp mode .............. 110
Automatic transmission
Accelerator pedal position ............. 152
Automatic drive program .............. .154
Changing gear ............................... 152
DIRECT SELECT lever ..................... 148
Drive program displa y.................... 149
Driving tips .................................... 152
Emergency running mode .............. 158
Engaging drive position .................. 151
Engaging neutral ............................ 150
Engaging park position (AMG vehi-
cles) ............................................... 151
Engaging park position automati-
cally ............................................... 149
Engaging reverse gear ................... 150
Engaging the park position ............ 149
Holding the vehicle stationary on
uphill gradients .............................. 153
Kickdown ....................................... 153
Manual drive progra m.................... 155
Oil temperature (on-board com-
puter, AMG vehicles) ..................... 214
Overview ........................................ 148
Problem (malfunction) ................... 158
Program selector button ................ 153
Pulling away ................................... 144
Selector lever ................................ 151
Starting the engine ........................ 144
Steering wheel paddle shifters ...... 154
Transmission position dis-
play ........................................ 149, 151
Transmission positions .................. 152
Automatic transmission emer-
gency mode ....................................... 158 B
Backup lamp Display message ............................ 231
BAS (Brake Assist System) ................. 64
Battery (SmartKey)
Checking .......................................... 77
Important safety notes .................... 77
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 307
Display message ............................ 234
Important safety notes .................. 305
Jump starting ................................. 309
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 211
Display message ............................ 236
Notes/function .............................. 194
Brake fluid
Display message ............................ 224
Notes ............................................. 357
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Changing bulb s.............................. 119
Display message ............................ 230
Brakes
ABS .................................................. 63
Adaptive Brake Assist ...................... 66
BAS .................................................. 64
Brake fluid (notes) ......................... 357
Display message ............................ 218
EBD .................................................. 70
Hill start assist ............................... 145
HOLD function ............................... 178
Important safety notes .................. 165
Maintenance .................................. 166
Parking brake ................................ 162
Riding tips ...................................... 165
Warning lamp ................................. 249
Breakdown
see Flat tire
Brightness control (instrument
cluster lighting) ................................... 31
Buttons on the steering wheel ......... 201 Index
5

Roller sunblind
Opening/closing .............................. 93
Panorama roof with power tilt/
sliding panel ..................................... 92
Roof carrier ........................................ 267
Roof lining and carpets (cleaning
guidelines) ......................................... 298
Roof load (maximum) ........................ 359S
Safety Children in the vehicle ..................... 56
Seat
Adjusting (Performance Seat) ........ 100
Seat belts
Adjusting the height ......................... 44
Cleaning ......................................... 298
Correct usage .................................. 44
Fastening ......................................... 44
Important safety guidelines ............. 42
Introduction ..................................... 42
Releasing ......................................... 45
Warning lamp ................................. 247
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 98
Adjusting (manually) ........................ 98
Adjusting the 4-way lumbar sup-
port ................................................ 100
Adjusting the head restraint ............ 98
Cleaning the cover ......................... 297
Correct driver's seat position ........... 96
Folding the backrest (rear com-
partment) forwards/back .............. 266
Important safety notes .................... 97
Seat heating problem .................... 102
Storing settings (memory func-
tion) ............................................... 106
Switching seat heating on/off ....... 100
Securing cargo .................................. 266
Selector lever
Cleaning ......................................... 297
Sensors (cleaning instructions) ....... 295
Service menu (on-board com-
puter) .................................................. 211
Service message
see ASSYST PLUS Service products
Brake fluid ..................................... 357
Coolant (engine) ............................ 357
Engine oil ....................................... 356
Fuel ................................................ 353
Important safety notes .................. 353
Refrigerant (air-conditioning sys-
tem) ............................................... 358
Washer fluid ................................... 358
Setting the air distribution ............... 132
Setting the airflow ............................ 132
Settings
Factory (on-board computer) ......... 213
On-board compute r....................... 211
SETUP (on-board computer) ............. 214
Side impact air bag ............................. 48
Side marker lamp (display mes-
sage) ................................................... 231
Side windows
Cleaning ......................................... 294
Convenience closing feature ............ 88
Convenience opening feature .......... 87
Important safety information ........... 86
Opening/closing .............................. 87
Problem (malfunction) ..................... 90
Resetting ......................................... 89
Reversing feature ............................. 86
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 78
Changing the programming ............. 76
Checking the battery ....................... 77
Convenience closing feature ............ 88
Convenience opening feature .......... 87
Display message ............................ 246
Door central locking/unlocking ....... 74
Important safety notes .................... 74
KEYLESS-GO start function .............. 76
Loss ................................................. 79
Mechanical key ................................ 76
Positions (ignition lock) ................. 141
Problem (malfunction) ..................... 79
Starting the engine ........................ 144
SmartKey positions (ignition lock) .. 141
Snow chains ...................................... 321 Index
15

Transporting ..................................3
14
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ..................... .74
Vehicle data ................................... 359
Vehicle data
Roof load (maximum) .....................3 59
Trunk load (maximum) ................... 359
Vehicle dimensions ........................... 359
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 352
Vehicle tool kit .................................. 300
Ventilation
Setting the vents ........................... 136
Video
Operating the DVD ......................... 207
VIN ...................................................... 352 W
Warning and indicator lamps ABS ................................................ 250
Brakes .......................................... .249
Check Engine ................................. 256
Coolant .......................................... 256
Distance warning ........................... 258
ESP ®
.............................................. 252
ESP ®
OFF ....................................... 253
LIM (DISTRONIC PLUS) .................. 173
Overview .......................................... 32
PASSENGER AIR BAG OFF .............. .41
Reserve fuel .................................. .256
Restraint system ............................ 255
Seat belt ........................................ 247
SPORT handling mode ................... 253
Tire pressure monitor .................... 259
Warranty .............................................. 21
Washer fluid
Display message ............................ 245
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 345
Wheel chock ...................................... 342
Wheels
Changing a wheel .......................... 341
Checking ........................................ 319
Cleaning ......................................... 294 General notes ................................ 345
Important safety notes .................. 318
Information on driving .................... 318
Interchanging/changing ................ 341
Mounting a new wheel ................... 344
Removing a wheel .......................... 344
Storing .......................................... .341
Tightening torque ........................... 345
Wheel size/tire size ....................... 345
Window curtain air bag
Display message ............................ 226
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Windshield washer system
Adding washer fluid ....................... 290
Notes ............................................. 358
Windshield wipers
Display message ............................ 245
Problem (malfunction) ................... 122
Replacing the wiper blades ............ 121
Switching on/off ........................... 120
Winter driving
Slippery road surfaces ................... 168
Snow chains .................................. 321
Winter operation
General notes ................................ 320
Winter tires
M+S tires ....................................... 320
Wiper blades
Cleaning ......................................... 295
Important safety notes .................. 121
Replacing (windshield )................... 121
Wooden trim (cleaning instruc-
tions) .................................................. 297 Z
ZONE function Switching on/of f........................... 132 Index
19

Bulb holder
;
Brake lamp
= Brake lamp
? Rear fog lamp
A Backup lamp
B Turn signal
X Brake lamp/rear fog lamp/backup
lamp: remove the corresponding bulb from
the bulb holder.
X Insert the new bulb into the bulb holder.
X Turn signal: press the bulb gently into the
bulb holder, turn it counter-clockwise and
remove it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise.
X Reinsert the bulb holder and engage on
retaining clips :.
X Close the side trim panel (Y page 119).Windshield wipers
Switching the windshield wipers
on/off
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when the windshield is dry.
If it is necessary to switch on the windshield wipers in dry weather conditions, always
use washer fluid when operating the wind-
shield wipers. !
If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash. Combination switch
1
$ Windshield wiper off
2 Ä Intermittent wipe, low (rain sensor
set to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/î Wipes the wind-
shield using washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
shield becomes dirty in dry weather condi-
tions, the windshield wipers may be activa-
ted 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.
Vehicles with a rain sensor: in the Äor
Å position, the appropriate wiping fre-
quency is automatically set according to the
intensity of the rain. In the Åposition, the
rain sensor is more sensitive than in the Ä120
Windshield wipersLights and windshield wipers

Automatic transmission
X
Shift the transmission to position P
(Y page 149).
The transmission position display in the
multifunction display shows
P (Y page 149).
When the transmission is in position N, you
can also start the engine with the brake pedal
depressed.
Starting procedure with the SmartKey To start the engine using the SmartKey
instead of the Start/Stop button, pull the
Start/Stop button out of the ignition lock.
X Turn the SmartKey to position 3
(Y page 141) in the ignition lock and release
it as soon as the engine is running.
Starting procedure with the Start/Stop button The Start/Stop button can be used to start
the vehicle manually without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted in the ignition
lock and the SmartKey must be in the vehicle. This mode for starting the engine operates
independently of the ECO start/stop auto-
matic engine start function.
You can start the engine if a valid SmartKey is in the vehicle. Switch off the engine and
always take the SmartKey with you when
leaving the vehicle, even if you only leave it for
a short time. Pay attention to the important
safety notes.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 141).
The engine starts. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
Depress the accelerator carefully when pull-
ing away.
The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking feature (Y page 212).
It is only possible to shift the transmission
from position Pto the desired position if you
depress the brake pedal. Only then can the
parking lock be deactivated.
All vehicles (except AMG vehicles): if you
do not depress the brake pedal, the DIRECT
SELECT lever can still be moved but the park- ing lock remains engaged.
AMG vehicles: if you do not depress the
brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission fluid temperatures below
Ò4 ‡ (Ò20 †), you can only shift out of park
position Pinto another transmission position
when the engine is running.
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Information on the automatic release of the
electric parking brake (Y page 162).144
DrivingDriving and pa
rking

All vehicles (except AMG vehicles):
the
DIRECT SELECT lever is on the right of the
steering column.
For information on the selector lever in AMG
vehicles (Y page 151).
The DIRECT SELECT lever always returns to
its original position. The current transmission position P,R, Nor Dappears in the transmis-
sion position display in the multifunction dis-
play (Y page 149).
Transmission position and drive pro-
gram display !
If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether the desired transmission position is
engaged. Ideally, you should select trans-
mission position Dand drive program Eor
S. :
Transmission position
; Gear
= Drive program display
The current transmission position and drive
program appear in the multifunction display.
The arrows in the transmission position dis-
play show how and into which transmission
positions you can shift using the DIRECT
SELECT lever.
Engaging park position P !
If the engine speed is too high or the vehi-
cle is moving, do not shift the automatic
transmission directly from Dto R, from Rto
D or directly to P. The automatic transmis-
sion could otherwise be damaged. j
Park position with parking lock
k Reverse gear
i Neutral
h Drive
X Push the DIRECT SELECT lever in the direc-
tion of arrow P.
Transmission position display Pis shown in
the multifunction display.
When you have engaged park position P,
make sure that the transmission position dis-
play shows Pin the multifunction display.
You can only engage park position Pwhen the
vehicle is stationary.
Depressing the brake and pushing the
DIRECT SELECT lever up or down disengages the parking lock. The transmission is in N
neutral.
At transmission fluid temperatures below
Ò4 ‡ (Ò20 †), you can only shift out of park
position Pinto another transmission position
when the engine is running.
In order to shift from park position Pdirectly
into Ror D:
R depress the brake pedal and
R push the DIRECT SELECT lever up or down
past the first point of resistance
Engaging park position P automatically Park position
Pis automatically engaged if:
R you switch off the engine using the Smart-
Key and remove the SmartKey
R you switch off the engine using the Smart-
Key or using the Start/Stop button and Automatic transmission
149Driving and parking Z

effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients !
On long and steep gradients, you must
reduce the load on the brakes by shifting to
a lower gear in good time. This allows you to
take advantage of the engine's braking
effect. For this, you need to have selected
manual drive program M. This helps you to
avoid overheating the brakes and wearing
them out excessively.
When you take advantage of the engine's
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive train. This type of damage is not covered bythe Mercedes-Benz warranty.
Briefly depressing the accelerator pedal on
downhill gradients while the manual drive
program Mis temporarily activated: the auto-
matic transmission may switch to the last
active automatic drive program Eor S. The
automatic transmission may shift to a higher
gear. This can reduce the engine's braking
effect.
Heavy and light loads G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads. If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads If you have driven for a long time in heavy rain
without braking, there may be a delayed reac- tion from the brakes when braking for the firsttime. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R In order to prevent any salt build-up, apply
the brakes occasionally while paying atten-
tion to the traffic conditions.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
Servicing the brakes !
If the red brake warning lamp lights up in
the instrument cluster and you hear a warn- ing tone while the engine is running, the
brake fluid level may be too low. Observe
additional warning messages in the multi-
function display.
The brake fluid level may be too low due to brake pad wear or leaking brake lines. 166
Driving tipsDriving and parking

Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
! A function or performance test should
only be carried out on a 2-axle dynamom-
eter. If you are planning to have the vehicle tested on such a dynamometer, contact an
authorized Mercedes-Benz Center to
obtain further information first. Otherwise,
you could damage the drive train or the
brake system.
! As the ESP ®
system operates automati-
cally, the engine and the ignition must be
switched off (the SmartKey must be in posi-
tion 0or 1in the ignition lock) if:
R the electric parking brake is tested on a
brake dynamometer (for a maximum of
ten second s)
R the vehicle is towed with the front axle
raised.
Braking triggered automatically by ESP ®
may seriously damage the brake system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop. Consult a qualified
specialist workshop to arrange this.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the function- ality of your brakes at regular intervals.
You can find a description of Brake Assist
(BAS) on (Y page 64).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your vehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz, or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
Checking brake lining thickness You can measure the break pad/lining thick-
ness using a test gage. Color-coding (green or
red) on the test gage allows you to determine whether the brake pad/lining thickness is still
sufficient. The test gage is in the vehicle docu-
ment wallet in the glove box. Front wheel Driving
tips
167Driving an d parking Z