2018 MERCEDES-BENZ CLA technical data

Feature s. ............................................. 242
Maintenanc ea nd care ...................... 257
Engine compartment ........................... 257
ASSYST PLUS ...................................... 261
Care ..................................................... 262
Breakdown assistance ..................... 269
Where will If ind...? .............................. 269
Fla tt ire ................................................ 271
Battery (vehicle) .................................. 276
Jump-starting ....................................... 278
Towing and tow-starting ...................... 281
Fuses ................................................... 284
Wheels and tires ............................... 287
Important safety notes ........................ 287
Operation ............................................ 287
Winte ro peration .................................. 289
Tir ep ressure ....................................... 290
Loading the vehicle .............................. 298
All abou tw heel sa nd tire s. .................. 301
Changing aw heel ................................ 307
Wheel and tire combinations ............... 312
Technical data ................................... 313
Information regarding technical data ... 313
Vehicl ee le ctronics .............................. 313
Identification plates ............................. 314
Service products and filling capaci-
ties ...................................................... 315
Vehicl ed at a. ........................................ 320 Contents 3

Start-off assist
Activating ....................................... 158
Important safety notes .................. 158
Start/Stop button
Removing ....................................... 123
Starting the engine ........................ 124
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 123
STEER CONTROL ................................. .6 8
Steering
Display message ........................... .2 16
Steering assistant STEE RC ON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (manually ). ....................... 95
Butto no verview ............................... 34
Buttons (on-board computer) ......... 177
Cleaning ......................................... 267
Important safety notes .................... 95
Paddle shifters ............................... 136
Steering whee lp addle shifters ........ 136
Stopwatch (RACETIMER) ................... 189
Stowag ec om partments
Armrest (front) ............................... 238
Armrest (under ). ............................ 239
Center console .............................. 238
Center console (rear) ..................... 239
Cu ph olders ................................... 242
Eyeglasses compartment ............... 238
Glove box ....................................... 238
Important safety information ......... 237
Ma pp ockets .................................. 239
Stowag en et ................................... 239
Stowag en et ....................................... 239
Stowag ew el lb enea th the trunk
floor .................................................... 241
Summe rt ires ..................................... 289
Sun visor ............................................ 243
Suspension setting
AMG adaptive sport suspension
system ........................................... 159
Switchin ga ir-recirculatio nm ode
on/off ................................................. 119
Switchin gonm edi am ode
Via the device list .......................... 235 T Tachometer ........................................ 176
Tail lamps
Displa ym essage ............................ 203
see Lights
Tank
see Fue lt ank
Tank content
Fue lg auge ....................................... 33
Technical data
Capacities ...................................... 315
Information .................................... 313
Tires/wheels ................................. 312
Vehicl ed at a. .................................. 320
Telephone
Accepting ac al l( multifunction
steering wheel) .............................. 184
Authorizing am obil ep hone (con-
necting) ......................................... 233
Authorizing am obil ep hone via the
device manager (connecting) ......... 234
Connecting am obil ep hone
(device manager ). .......................... 234
Connecting am obil ep hone (gen-
era li nformation) ............................ 233
Displa ym essage ............................ 216
Introduction ................................... 183
Menu (on-board computer) ............ 183
Numbe rf rom the phone boo k. ....... 184
Redialing ........................................ 184
Rejecting/ending ac al l. ................ 184
see also Digital Operator's Man-
ua l. ................................................. 229
Temperature
Coolant .......................................... 177
Coolant (on-board computer,
Mercedes-AM Gv ehicles) ............... 188
Engine oi l( on -board computer,
Mercedes-AM Gv ehicles) ............... 188
Outsid et emperature ...................... 176
Setting (climate control ). ............... 116
Transmission oi l( on -board com-
puter, Mercedes-AM Gv ehicles) ..... 188
Through-loadin gf eature ................... 239
Timing (RACETIMER) ......................... 189
Tire pressure
Calling up (on-board computer) ..... 29418
Index

The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has ad efect
which could cause ac rash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA )ina ddition to notifying Mercedes-Benz
USA ,L LC.
If NHTSA receives similar complaints ,itm ay
open an investigation, and if it finds that as afety
defect exists in ag roup of vehicles, it may order
ar ecall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA ,L LC.
To contact NHTSA ,y ou may call the Vehicle
Safety Hotlin et oll-free at 1-888-327-4236
(TTY: 1-800-424-9153 ); go to http://
www.safercar.gov ;orw rite to: Administrator,
NHTSA ,4 00 Sevent hS treet, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited 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 contra-
ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident ,r escue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in ac ompact form, e.g. the
routing of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code. Data stored in the vehicle
Data storage Aw ide 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
incidents R
malfunctions
In general, this technical information docu-
ment st he state of ac omponent, am odule, a
system or the surroundings.
These include, for example: R
operating conditions of system components,
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 move-
ment ,l ateral acceleration, accelerator pedal
position R
malfunction sa nd defects in important system
components, e.g. lights, brakes R
vehicle reaction sa nd operating conditions in
special driving situations, e.g. air bag deploy-
ment ,i ntervention of stability control sys-
tems R
ambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to: R
assist in recognizing and rectifying malfunc-
tions and defects R
analyze vehicle functions, e.g. after an acci-
dent R
optimize 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 memory
and malfunction data memory.
Services include, for example: R
repair services R
service processes R
warranties R
quality assurance
The vehicle is read out by employees of the ser-
vice network (including the manufacturer) using
special diagnostic testers. More detailed infor-
mation is obtained from it, if required.Data stored in the vehicle 29
Introduction Z

and to have any malfunctionin ga ir bags
repaired. This will help to mak es ure th ea ir bags
continue to perform their protective function for
th ev ehicle occupant sint he even tofac ra sh.
G WARNING
Emergenc yT ensioning Devices that have
deployed pyrotechnically are no longer opera-
tional and are unabl etop erform their inten-
ded protective function .T his pose sa n
increased risk of injury or even fatal injury.
Hav ep yrotechnically triggered Emergency
Tensioning Devices replaced immediately at a
qualified specialist workshop.
If Emergenc yT ensioning Devices are triggered
or air bags are deployed, you will hear ab ang,
and as mall amoun tofp owder may also be
released. The u restraint system warning
lamp light su p.
Only in rar ec ases will th eb ang affect your hear-
ing .T he powder that is released generally does
no tc onstitut eah ealt hh azard, but it may cause
short-term breathin gd ifficulties in peopl ew ith
asthma or other respiratory problems .P rovided
it is safe to do so, you shoul dl eave th ev ehicle
immediately or open th ew indow in orde rtop re-
ven tb reathin gd ifficulties.
Air bags and pyrotechnic Emergenc yT ensioning
Devices (ETDs )c ontain perchlorate material,
whic hm ay require special handlin ga nd regard
for th ee nvironment. National guidelines must
be observed durin gd isposal. In California, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm .
Method of operation During th ef irst stage of ac ollision ,t he restraint
system control unit evaluates important physi-
cal dat ar elating to vehicle deceleratio nora ccel-
eration ,s uc ha s:R
duration R
direction R
intensity
Based on th ee valuation of this data, the
restraint system control unit trigger st he Emer-
gency Tensioning Devices durin gaf ront al or
rear collision. An Emergenc yT ensioning Devic ec an only be
triggered, if: R
th ei gnition is switched on R
th ec omponent soft he restraint system are
operational. You can fin df urther information
unde r" Restrain ts ystem warning lamp"
( Y
page 41) R
th es eat belt buckle tongue has engaged in
th eb elt buckle of th er espectiv ef ront seat
The Emergenc yT ensioning Devices in th er ear
compartmen ta re triggered independently of the
loc ks ta tus of th es eat belts.
If th er estraint system control unit detect sa
mor es evere accident, further component so f
th er estraint system are activated independ-
ently of each other in certain frontal collision
situations: R
Fron ta ir bags as well as driver' sa nd front-
passenger knee bags R
Window curtain air bag, if th es ystem deter-
mines that deploymen tc an offer additional
protection to that provided by th es eat belt
The front-passenger fron ta ir bag is activated or
deactivate dd ependin gont he person on t h
e
front-passenger seat .T he front-passenger front
air bag can only deplo yinana cciden tift he
PASSENGER AI RB AG OF Fi ndicator lamp is off.
Observ et he informatio nont he PASSENGER AIR
BA Gi ndicator lamps ( Y
page 41).
Your vehicle has two-stag ef ront air bags. In the
first deploymen ts ta ge, th ef ront air bag is filled
with propellan tg as. The fron ta ir bag is fully
deployed with th em aximum amoun tofp ropel-
lant gas if as econ dd eploymen tt hr eshold is
reached within af ew milliseconds.
The activation threshold of th eE me rgenc yT en-
sioning Devices and th ea ir bags is determined
by evaluating th er at eofv ehicle deceleratio no r
acceleratio nw hic ho ccurs at various points in
th ev ehicle .T his process is pre-emptive in
nature. Deployment shoul dt ak ep lace in good
tim eatt he start of th ec ollision.
The rat eofv ehicle deceleratio nora cceleration
and th ed irection of th ef orce are essentially
determine db y: R
th ed istribution of forces durin gt he collisionR
th ec ollision angle R
th ed eformatio nc ha racteristics of th ev ehicleR
th ec ha racteristics of th eo bject with which
th ev ehicle has collided
Factors whic hc an only be seen and measured
after ac ollision has occurre ddon ot play ad eci-Occupant safety 53
Safety Z

! Mercedes-Benz recommends that you only
use roof carriers that have been tested and
approved for Mercedes-Benz vehicles. This
helps to prevent damage to the vehicle.
Position the load on the roof rack in such a
way that the vehicle will not sustain damage
even when it is in motion.
Depending on the vehicle equipment, ensure
that when the roof carrier is installed you can: R
open the panorama roof with power tilt/
sliding panel fully R
open the trunk lid fully
You will find information on the maximum roof
load in the "Technical data" section
( Y
page 320).
An incorrectly secured roof carrier or roof load
may become detached from the vehicle. You
must therefore ensure that you observe the roof
carrier manufacturer's installation instructions.
Attaching the roof carrier
X
Open and fold the covers C upwards care-
fully in the direction of the arrow. X
Only secure the roof carrier to the anchorage
points under covers C .X
Observe the manufacturer's installation
instructions.
Features
Cup holder
Important safety notes
G WARNING
The cup holder cannot hold ac ontainer secure
whilst traveling. If you use ac up holder whilst traveling, the container may be flung around
and liquid may be spilled. The vehicle occu-
pants may come into contact with the liquid
and if it is hot, they may be scalded. You may
be distracted from the traffic conditions and
you could lose control of the vehicle. There is
ar isk of an accident and injury.
Only use the cup holder when the vehicle is
stationary. Only use the cup holder for con-
tainers of the right size. Alway sc lose the con-
tainer, particularl yift he liquid is hot.
G WARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objects they contain. There is ar isk
of injury, particularl yint he event of sudden
braking or as udden change in direction. R
Alway ss tow objects so that they cannot be
thrown around in such situations. R
Alway sm ake sure that objects do not pro-
trude from stowage spaces, parcel nets or
stowage nets. R
Close the lockable stowage spaces before
starting aj ourney. R
Alway ss tow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objects in
the trunk.
! Only use the cup holders for containers of
the right size and which have lids. The drinks
could otherwise spill.
Observe the loading guidelines ( Y
page 237).
The stowage compartment sint he doors provide
space for bottles: R
front :c apacity up to 34 fl. oz. (1.0 l)R
rear: capacity up to 17 fl. oz. (0.5 l)242
Features
Stowage and features

The maximum transmission output (PEAK )att he
base of the antenna must not exceed the fol-
lowing values:
Frequency band Maximum
transmission
output
Short wave
3-54M Hz 100 W
4mw aveband
74 -88M Hz 30 W
2mw aveband
144 -1 74 MHz 50 W
Trunked radio system/
Tetra
380 -4 60 MHz 10 W
70 cm waveband
400 -4 60 MHz 35 W
Mobile communications
(2G/3G/4G) 10 W
The following can be used in the vehicle without
restrictions: R
RF transmitters with am aximum transmis-
sion output of up to 100 mW R
RF transmitters with transmitter frequencies
in the 380 -4 10 MHz frequency band and a
maximum transmission output of up to 2W
(trunked radio system/Tetra) R
Mobile phones (2G/3G/4G)
There is no restriction for antenna positions on
the outside of the vehicle for the following fre-
quency bands: R
Trunked radio system/Tetra R
70 cm waveband R
2G/3G/4G Identification plates
Vehicle identification plat ew ith vehi-
cle identification number (VIN) X
Open the driver's door.
You will see vehicle identification plate C .
Example: vehicle identification plate (USA only)
C
VIN D
Paint code
Example: vehicle identification plate (Canada only)
C
VIN
D
Paint code
i The data shown on the vehicle identification
plate is used only as an example. This data is314
Identification plates
Technical data

Other identifications, for example: R
0W -30R
5W -30R
5W -40
Fuel
Important safety notes
G WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is ar isk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before
refueling.
G WARNING
Fuel is poisonous and hazardous to health.
There is ar isk of injury.
You must make sure that fuel does not come
into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel awa yf rom children.
If you or others come into contact with fuel,
observe the following: R
Wash awa yf uel from skin immediately
using soap and water. R
If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay. R
If fuel is swallowed, seek medical assis-
tance without delay .Don ot induce vomit-
ing. R
Immediately change out of clothing which
has come into contact with fuel. Tank capacity Model Total capa-
city
CLA 250
13.2 US gal
(50.0 l)
Al lo th er models
14.8 US gal
(56.0 l)
Model Of which
reserve
Mercedes ‑ AM Gv ehicles
Approx.
2.1 US gal
(8.0 l)
All other models
Approx.
1.6 US gal
(6.0 l)
Gasoline
Fuel grade
! Do not use diesel to refue lv ehicles with a
gasoline engine. Do not switch on the ignition
if you accidentally refue lw ith the wrong fuel.
Otherwise, the fuel wil le nter the fuel system.
Even smal la mounts of the wrong fuel could
resul tind amage to the fuel system and the
engine. Notify aq ualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
! Only refue lu sing unleaded premium grade
gasoline with at least 91 AKI/95 RON.
i E10 fuel contains up to 10% bioethanol.
You rv ehicl eisE 10-compatible. You can
refue ly ou rv ehicl eu sing E10 fuel.
! Only use the fuel recommended. Operating
the vehicl ew ith other fuel sc an lea dtod am-
age to the fuel system, engine and exhaust
system.
! Do not use the following: R
Gasoline with more than 10% ethanol R
E100 (1 00% ethanol) R
Gasoline with methanol R
M100 (1 00% methanol) R
Gasoline with metalliferous additives R
Diesel316
Service products and fillin gc apacities
Technical data

Do not mix such fuel sw it ht he fuel recom-
mended for your vehicle.
! To ensur et he longevity and full perform-
ance of the engine ,o nl yp remium-grade
unleade dg as oline must be used.
If standard unleade dg as oline is unavailable
and yo uh av etor efue lw it hu nleade dg as oline
of al ower grade ,o bs erve the following pre-
cautions: R
Onl yf il lt he fuel tank to half full with regular
unleade dg as oline and fil lt he res tw it hp re-
mium-grad eu nleade dg as oline as soo na s
possible. R
Do not drive at the maximum speed. R
Avoi ds udde na cceleratio na nd engine
speeds ove r3 ,000 rpm.
Yo uw il lu sually find informatio na bout the fuel
grade on the fuel pump. If yo uc anno tf ind the
labe lont he fuel pump, as kt he ga ss tatio ns taff.
i For furthe ri nformation, consul taq uali fied
specialis tw or kshop or visit
http://www.mbusa.com (USA only).
CL A2 50 ,C LA 25 0S port, CL A2 50 4MATIC,
CL A2 50 Sport 4MATIC: as at emporary meas-
ure, if the recommende df ue lisn ot available,
yo um ay also us er egular unleade dg as oline with
an octane rating of 88 AKI /93 RON .
All othe rm odels: as at emporary measure, if
the recommende df ue lisn ot available, yo um a y
also us er egular unleade dg as oline with an
octane rating of 87 AKI/91 RON. Thi sm ay
reduce engine performance and increase fuel
consumption. Avoi dd rivin gatf ul lt hrottle and
sudden acceleration. Never refue lu si ng gaso-
line with al ower AKI.
Informatio nonr efueling ( Y
page 139).
Additives
! Operating the engine with fuel additives
adde dl at er can lead to engine failure. Do not
mix fuel additive sw it hf uel. Thi sd oe sn ot
includ ea ddit ive sf or the remova la nd preven-
tio nofr esidue buildup. gasoline must onl yb e
mixed with additive sr ecommende db y
Mercedes-Benz. Compl yw it ht he instructions
for us eont he product label. Mor ei nformation
abou tr ecommende da ddit ive sc an be
obtained fro ma ny authorize dM er cedes-Benz
Center.
Mercedes-Benz recommends tha ty ou us eb ran-
de df uels tha th av ea ddit ives. The fuel quality availabl eins om ec ountries may
not be sufficient. Residu ec ould buil dupint he
fuel injectio ns ys tem as ar esult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel ma ybem ixed
with the cleaning additive recommende db y
Mercedes-Benz. Yo um us to bs erve the notes
and mi xing ratio ss p
e cifie dont he container.
Engine oil
General notes
! Do not us ee ngine oi lorano il filter with
specifications deviating fro mt hos ee xpressly
required for the prescribe ds ervic ei ntervals.
Do not change the engine oi loro il filter in
order to set replacement intervals longe rt han
thos ep rescribed. Thi sc ould otherwis ec ause
damage to the engine or exhaust ga sa ft er-
treatment.
Follo wt he instructions on the servic ei nterval
displa yf or changing the engine oil. Thi sc ould
otherwis ec ause damage to the engine or
exhaust ga sa ft ertreatment.
When handling engine oil, observe the important
safety note sons ervic ep roducts ( Y
page 315).
The engine oils ar em at che dtot he performance
of Mercedes-Benz engine sa nd servic ei ntervals.
Yo us houl dt herefore onl yu se engine oils and oil
filters tha ta re approved for vehicles with main-
tenance systems.
For al is tofa pp roved engine oils and oi lf ilters,
consul tana ut horize dM er cedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.Service products and filling capacities 317
Technical data Z