brake fluid MERCEDES-BENZ CLS COUPE 2014 Owners Manual

Auxiliary ventilation
Activating/deactivating ................ .150
Activating/deactivating (on the
centre console ).............................. 151
Problem (display message) ............ 154
Remote control .............................. 151
Axle load, permissible (trailer tow-
ing) ...................................................... 410 B
Ball coupling Folding in ....................................... 236
Folding out ..................................... 234
BAS (Brake Assist System) ................. 70
BAS PLUS (Brake Assist System
PLUS) .................................................... 71
Battery (key)
Checking .......................................... 85
Important safety notes .................... 85
Replacing ......................................... 86
Battery (vehicle)
Charging ........................................ 353
Display message ............................ 271
Important safety notes .................. 351
Jump starting ................................. 355
Belt
see Seat belts
Belt tensioner
Activation ......................................... 51
Blind Spot Assist
Activating/deactivating ................. 250
Display message ............................ 276
Notes/function .............................. 223
Trailer towing ................................. 225
see Active Blind Spot Assist
BlueTEC (AdBlue®) ............................ 403
Bluetooth® SAP V3 telephone
module
see Separate operating instructions
Bonnet
Closing ........................................... 329
Display message ............................ 283
Important safety notes .................. 328
Opening ......................................... 328
Boot
Emergency release .......................... 95
Important safety notes .................... 91 Opening/closing (automatically
from inside) ...................................... 94
Opening/closing (automatically
from outside) ................................... 92
Opening/closing (manually from
outside) ............................................ 92
Boot lid
Display message ............................ 283
Opening dimensions ...................... 407
Boot load (maximum) ........................ 407
Bottle holders .................................... 314
Box (boot) ........................................... 308
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 264
Notes ............................................. 405
Brake lamps
Adaptive ........................................... 72
Display message ............................ 268
Brakes
ABS .................................................. 70
BAS .................................................. 70
BAS PLUS ........................................ 71
Brake fluid (notes) ......................... 405
Display message ............................ 262
Driving tips .................................... 183
High-performance brake system .... 184
HOLD function ............................... 200
Important safety notes .................. 183
Parking brake ................................ 181
Warning lamp ................................. 288
Breakdown
see Flat tyre
see Towing away
Bulbs
see Replacing bulbs C
Calling up a fault see Display messages
Car
see Vehicle
Car key
see Key
Car wash (care) ................................. 3346
Index

Important safety notes .................. 105
Overview ........................................ 105
Seat heating problem .................... 112
Seat ventilation problem ................ 113
Storing settings (memory func-
tion) ............................................... 119
Switching seat heating on/off ....... 111
Switching the seat ventilation on/
off .................................................. 112
Selector lever
Cleaning .........................................3 40
Sensors (cleaning instructions) ....... 337
Service
see ASSYST PLUS
Service Centre
see Qualified specialist workshop
Service menu (on-board com-
puter) ................................................. .251
Service products
AdBlue® special additive s............. 403
Brake fluid ..................................... 405
Coolant (engine) ............................ 405
Engine oil ....................................... 404
Fuel ................................................ 399
Important safety notes .................. 399
Washer fluid ................................... 406
Setting the air distribution ............... 145
Setting the airflow ............................ 146
Settings
Factory (on-board computer) ......... 258
On-board compute r....................... 251
SETUP (on-board computer) ............. 258
Side lamps
Switching on/of f........................... 124
Side windows
Convenience closing ........................ 97
Convenience opening ...................... 97
Important safety notes .................... 96
Opening/closing .............................. 96
Problem (malfunction) ..................... 99
Resetting ......................................... 98
Sidebag ................................................ 50
Sliding sunroof
Important safety information ........... 99
Opening/closing ............................ 100
Problem (malfunction) ................... 102
Rain closing feature ....................... 101 Resetting ....................................... 101
Snow chains ...................................... 367
Socket
Luggage compartment ................... 319
Under the armrest ......................... 318
Sockets
Centre console .............................. 318
General notes ................................ 317
Rear compartment ......................... 318
Spare wheel
Storing ........................................... 392
Specialist workshop ............................ 26
Spectacles compartment ................. 301
Speed Limit Assist
Activating/deactivating the warn-ing function .................................... 249
Display message ............................ 275
Display message in the multifunc- tion display .................................... 220
Important safety notes .................. 219
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 244
In the Instrument cluster ................. 32
Segments ...................................... 241
Selecting the unit of measure-
ment .............................................. 252
see Instrument cluster
SPEEDTRONIC
Deactivating variable ..................... 191
Display message ............................ 278
Function/note s............................. 189
Important safety notes .................. 189
LIM indicator lamp ......................... 189
Permanent ..................................... 191
Selecting ........................................ 190
Storing the current speed .............. 190
Variabl e......................................... 189
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 74
Warning lamp ................................. 292
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 161
Steering (display message) .............. 28518
Index

Tyre size (data) .............................. 378
Tyre tread ...................................... 365
Wheel and tyre combinations ........ 380
see Flat tyre U
Unlocking Emergency unlocking ....................... 90
From inside the vehicle (central
unlocking button )............................. 89 V
Vanity mirror (in sun visor) .............. 315
Variable SPEEDTRONIC
see SPEEDTRONIC
Vehicle
Correct use ...................................... 26
Data acquisition ............................... 27
Display message ............................ 282
Electronics ..................................... 396
Equipment ....................................... 24
Implied warranty .............................. 27
Individual settings .......................... 251
Leaving parked up ......................... 182
Locking (in an emergency) ............... 90
Locking (key) ................................... 83
Lowering ........................................ 378
Pulling away ................................... 162
Raising ........................................... 375
Registration ..................................... 26
Securing from rolling away ............ 375
Towing away .................................. 357
Transporting .................................. 359
Unlocking (in an emergency) ........... 90
Unlocking (key) ................................ 83
Vehicle data ................................... 407
Vehicle data ....................................... 407
Vehicle dimensions ........................... 407
Vehicle emergency locking ................ 90
Vehicle identification number
see VIN
Vehicle identification plate .............. 398
Vehicle level
AIRMATIC ...................................... 202
Vehicle level (display message) ....... 274Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 345
Vehicle weights ................................. 407
Video
Operating the DVD ......................... 247
VIN ...................................................... 398 W
Warning and indicator lamps ABS ................................................ 289
Brakes ........................................... 288
Distance warning signal ................. 297
ESP® ............................................. 291
ESP® OFF ...................................... 292
LIM (cruise control) ........................ 186
LIM (DISTRONIC PLUS) .................. 193
LIM (variable SPEEDTRONIC) ......... 189
Overview .......................................... 34
PASSENGER AIR BAG OFF ............... 43
Reserve fue l................................... 295
Seat belt ........................................ 287
Tyre pressure monitor ................... 298
Warning triangle ................................ 344
Washer fluid
Display message ............................ 285
Wheel and tyre combinations
see Tyres
Wheel bolt tightening torque ........... 378
Wheel chock ...................................... 375
Wheels
Changing a whee l.......................... 373
Changing/replacing ....................... 373
Checking ........................................ 365
Cleaning ......................................... 336
Cleaning (warning) ......................... 374
Emergency spare wheel ................. 390
Fitting a new wheel ........................ 377
Fitting a wheel ............................... 374
Important safety notes .................. 364
Removing a whee l.......................... 377
Storing ........................................... 374
Tightening torque ........................... 378
Wheel size/tyre size ...................... 378
Windowbag
Operation ......................................... 50 Index
21

Implied warranty
! Follow the instructions in this manual
about the proper operation of your vehicle
as well as about possible vehicle damage.
Damage to your vehicle that arises from
culpable contraventions against these
instructions are not covered either by
Mercedes-Benz implied warranty or by the
New or Used-Vehicle Warranty. Data stored in the vehicle
A wide range of electronic components in
your vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
R the vehicle's operating state
R events
R faults
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
R operating conditions of system compo-
nents, e.g. fluid levels
R the vehicle's status messages and those of
its individual components, e.g. number of
wheel revolutions/speed, deceleration in
movement, lateral acceleration, accelera-
tor pedal position
R malfunctions and defects in important sys-
tem components, e.g. lights, brakes
R vehicle reactions and operating conditions
in special driving situations, e.g. airbag
deployment, intervention of stability con-
trol systems
R ambient conditions, e.g. outside tempera-
ture This data is of an exclusively technical nature
and can be used to:
R assist in recognising and rectifying faults
and defects
R analyse vehicle functions, e.g. after an acci-
dent
R optimise vehicle functions
The data cannot be used to trace the vehicle's movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data mem- ory and fault data memory.
Services include, for example:
R repair services
R service processes
R warranty events
R quality assurance
It is read by employees of the service network (including manufacturers) using special diag-
nostic testers. More detailed information is
obtained from it, if required.
After a fault has been rectified, the informa-
tion is deleted from the fault memory or is
continually overwritten.
When operating the vehicle, situations are
conceivable in which this technical data, in
connection with other information (if neces-
sary, under consultation with an authorised
expert), could be traced to a person.
Examples include:
R accident reports
R damage to the vehicle
R witness statements
Further additional functions that have been
contractually agreed upon with the customer
allow certain vehicle data to be conveyed by
the vehicle as well. The additional functions
include, for example, vehicle location in case of an emergency. Introduction
27 Z

The hazard warning lamps switch on auto-
matically if:
R an airbag is deployed or
R the vehicle decelerates rapidly from a
speed of above 70 km/h and comes to a
standstill
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
above 10 km/ha gain after a full brake appli-
cation.
i The hazard warning lamps continue to
operate even if the ignition is switched off. Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is oper-
ated five times (Y page 133) while the lights
are on and the engine is running. When you
switch off the ignition, the automatic head-
lamp cleaning system is reset and counting is
resumed from 0. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps automatically to suit
the prevailing driving and weather conditions. It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function, cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent Light System" using the on-board computer
(Y page 253). Active light function
The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas remain illuminated while
driving. This allows you to recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on.
Cornering light function The cornering light function improves the illu-
mination of the road over a wide angle in the direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beam head-
lamps are switched on.
Active:
R if you are driving at speeds below 40 km/h
and switch on the turn signal or turn the
steering wheel
R if you are driving at speeds between
40 km/ha nd 70 km/h and turn the steer-
ing wheel Exterior lighting
127Lights andwindscreen wipers Z

Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative See inoperative See
Owner's Manual Owner's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS, PRE-
SAFE ®
, the HOLD function, hill start assist and ESP ®
trailer stabi-
lisation are unavailable due to a malfunction.
The adaptive brake lights, BAS PLUS and PRE ‑SAFE®
Brake may
also have failed.
In addition, the ÷,åand! warning lamps light up in the
instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec-ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. J
Release parking Release parking
brake brake You are driving with the parking brake applied. A warning tone also
sounds.
X Release the parking brake. J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red Jwarning lamp lights up in the instrument
cluster and a warning tone sounds.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle to prevent it from rolling away (Y page 180).
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the fault. #
Check brake pad Check brake pad
wear wear The brake pads/linings have reached their wear limit.
X Visit a qualified specialist workshop. 264
Display
messagesOn-board computer and displays

Problem
Possible causes/consequences and
M
MSolutions J
The red brake system
warning lamp is lit while
the engine is running. A
warning tone also
sounds. There is insufficient brake fluid in the brake fluid reservoir.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 180).
X Do not top up the brake fluid. Topping up will not rectify the fault.
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. !
The yellow ABS warning
lamp is lit while the
engine is running. ABS (Anti-lock Brake System) has been deactivated due to a fault.
Therefore, BAS (Brake Assist System), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE ‑SAFE®
, PRE‑SAFE ®
Brake, the HOLD func-
tion, hill start assist, ESP ®
trailer stabilisation and the adaptive
brake lights, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other systems, such as the navigation system or the automatic trans-
mission, will be unavailable. Warning and indicator lamps in the instrument cluster
289On-board computer and displays Z

Do not aim directly at any of the following:
R tyres
R door gaps, roof gaps, joints etc.
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaning the paintwork !
Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop.
X Remove impurities immediately, where
possible, whilst avoiding rubbing too hard.
X Soak insect remains with insect remover
and rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with a cloth soaked in petroleum ether or
lighter fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
Care and treatment of matt paintwork !
Never polish the vehicle or the light alloy
wheels. Polishing makes the paintwork
shiny. !
The following may cause the paint to
become shiny and thus reduce the matt
effect:
R Vigorous rubbing with unsuitable mate-
rials.
R Frequent use of car washes.
R Washing the vehicle in direct sunlight.
! Never use paint cleaner, buffing or pol-
ishing products, or gloss preserver, e.g.
wax. These products are only suitable for
high-gloss surfaces. Their use on vehicles
with matt finish leads to considerable sur-
face damage (shiny, spotted areas).
Always have paintwork repairs carried out
at a qualified specialist workshop.
! Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a
clear matt finish. This will help you to avoid
damage to the paintwork due to incorrect
treatment.
These notes also apply to light-alloy wheels
with a clear matt finish.
i The vehicle should preferably be washed
by hand using a soft sponge, car shampoo
and plenty of water.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products. Cleaning vehicle parts
Cleaning the wheels !
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly after having cleaned the wheels with wheel cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you 336
CareMaintenance and care

VIN
X
Slide the right-hand front seat to its rear-
most position.
X Fold floor covering :upwards.
VIN ;can be seen.
The VIN can also be found on the vehicle
identification plate (Y page 398).Engine number
The engine number is stamped into the crank- case. You can obtain further information from
any qualified specialist workshop. Service products and capacities
Important safety notes
G
WARNING
Service product can be poisonous and haz-
ardous to health. There is a risk of injury.
Observe the instructions on the respective
original container when using, storing and dis- posing off service products. Always store ser-
vice products in the sealed original container. Always keep service products out of the reach
of children. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Service products include the following:
R fuels
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
R climate control system refrigerant
When handling, storing and disposing of any
service products, please observe the relevant regulations.
Components and service products must be
matched. Mercedes-Benz recommends that
you use products tested and approved by
Mercedes-Benz. They are listed in this
Mercedes-Benz Owner's Manual in the appro-
priate section.
You can identify service products approved
by Mercedes-Benz by the following inscrip-
tions on the container:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi- cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centre or on the
Internet at http://bevo.mercedes-benz.com. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refuelling. Service products and capacities
399Technical data Z

Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity
rating, it flows slowly; the lower the viscosity,
the faster it flows.
Engine oil selection is based on the respective outside temperatures and in accordance with
the SAE classification (viscosity). The table
shows you which SAE classifications are to be
used. The low-temperature properties of
engine oils can be significantly impaired dur-
ing operation due to, for example, ageing or
soot and fuel accretion. It is therefore
strongly recommended to observe regular oil changes using an approved engine oil with the
appropriate SAE classification. Brake fluid
G
WARNING
The brake fluid continuously absorbs mois-
ture from the air. This results in the boiling
point of the brake fluid lowering. If the boiling
point of the brake fluid is too low, vapour
pockets may form when the brakes are sub-
jected to a heavy load. This would impair brak- ing efficiency. There is a risk of an accident.
Have the brake fluid renewed at the prescri-
bed intervals.
Comply with the important safety notes for
service products when handling brake fluid
(Y page 399).
The brake fluid change intervals can be found in the Service Booklet. Only use brake fluid approved by Mercedes-
Benz according to MB Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist work-
shop or on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake fluid regularly replaced at
a qualified specialist workshop and the
replacement confirmed in the Service
Booklet. Coolant
Important safety notes G
WARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you top up
the antifreeze. Make sure that antifreeze is
not spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications for Service Products, MB Specifications for Service Products 310.1, e.g. on the Inter-
net at http://bevo.mercedes-benz.com.
Or contact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the
replacement confirmed in the Service
Booklet. Service products and capacities
405Technical data Z