2018 MERCEDES-BENZ CLA heating

Grade (gasoline) ............................ 316
Importan ts afety note s. ................ .3 16
Problem (malfunction) .................. .1 40
Refueling ........................................ 138
Tank content/reserve fuel ............. 316
Fue lf iller flap
Opening ......................................... 139
Fue ll evel
Calling up the range (on-board
computer) ...................................... 180
Fue lt ank
Capacity ........................................ 316
Problem (malfunction) ................... 140
Fuses
Allocation chart ............................ .2 85
Before changing ............................ .2 84
Fuse box in the engine compart-
ment .............................................. 285
Fuse box in the front-passenger
footwell .......................................... 285
Important safety notes .................. 284
G Garage door opener
Clearing the memory ..................... 254
General notes ................................ 252
Important safety notes .................. 252
Opening/closing the garage door .. 254
Problems whe np rogramming ....... .2 54
Programming (button in the rear-
view mirror) ................................... 252
Synchronizing the rolling code ....... 253
Gasoline ............................................. 316
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 188
Genuine parts ...................................... 24
Glove box .......................................... .2 38
Google ™L oc al Search
see also Digita lO perator's Man-
ua l. ................................................ .2 29
H
Handbrake
see Parking brake
HANDS-FRE EA CCES S .......................... 79 Hazard warning lamps
Display message ............................ 216
Switching on/off ........................... 102
Head restraints
Adjusting ......................................... 92
Adjusting (manually ). ....................... 93
Adjusting (rear) ................................ 93
Headlamps
Fogging up ..................................... 103
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................ .1 01
High-beam headlamps
Adaptive Highbeam Assist ............. 102
Display message ............................ 203
Replacing bulbs ............................ .1 06
Switching on/off ........................... 101
Hill start assist .................................. 125
HOLD function
Activating ....................................... 157
Activatio nc onditions ..................... 157
Deactivating ................................... 157
Display message ............................ 207
Function/notes ............................ .1 57
Home address
see also Digita lO perator's Man-
ua l. ................................................ .2 29
Hood
Closing .......................................... .2 58
Display message ............................ 215
Important safety notes .................. 257
Opening ......................................... 257
Horn ...................................................... 32
Hydroplaning ..................................... 148
I
Ignitio nl ock
see Key positions
Immobilizer .......................................... 68
Indicator lamp
Replacing bulbs (rear) .................... 106
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals Index 11

Center console
Center console, upper section
Function Page
C
Multimedia system (see the
separate operatin gi nstruc-
tions)
D
r Seat heating
94
Mercedes-AM Gv ehicles:
AM Ga daptive spor ts uspen-
sion system (lef ts ide) 159
Mercedes-AM Gv ehicles:
adjust st he exhaust flap of
th eA MG performance
exhaust system (right side) 127

Problem
Possible causes/consequences and P Solutions
KEYLESS-GO is malfunctioning. X
Lock/unlock the vehicle using the remote control function of the
SmartKey. X
Have the vehicle and SmartKey checked at aq ualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function: X
Unlock ( Y
page 77) or lock ( Y
page 77) the vehicle using the
mechanical key. X
Have the vehicle and SmartKey checked at aq ualified specialist
workshop.
The engine cannot be
started using the Smart-
Key. The on-board voltage is too low. X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work: X
Check the starter battery and charge it if necessary ( Y
page 278).
or X
Jump-start the vehicle ( Y
page 278).
or X
Consult aq ualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle. The vehicle is locked. X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged. X
Check the SmartKey battery ( Y
page 73) and replace it if necessary
( Y
page 73).
If this does not work: X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from ap owerful source of radio waves.X
Start your vehicle with the SmartKey in the ignition lock.
You have lost aS mart-
Key. X
Have the SmartKey deactivated at aq ualified specialist workshop.X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.
You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well. SmartKey 75
Opening and closing Z

motion. This could cause you to lose control of
the vehicle. There is ar isk of an accident.
Always make sure that the driver' ss eat is
engage db efore starting the vehicle.
G WARNING
You could lose control of you rv ehicl eify ou do
the following while driving: R
adjust the driver' ss eat, head restraint,
steering whee lorm irrorsR
fasten the seat belt
There is ar isk of an accident.
Adjust the driver' ss eat, head restraint, steer-
ing whee la nd mirror and fasten you rs eat belt
before starting the engine.
G WARNING
If you adjust the seat height carelessly ,y ou or
other vehicl eo ccupants could be trappe da nd
thereby injured. Children in particular could
accidentally press the electrica ls eat adjust-
ment buttons and become trapped. There is a
risk of injury.
Whil em oving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoi dd amage to the seats and the seat
heating, observe the following information: R
keep liquid sf rom spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible. R
if the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should als on ot be used to dry the seats.R
clean the seat covers as recommended;
see the "Interior care" section. R
do not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nail sort ools. The
seats should only be occupied by passen-
gers, if possible. R
when the seat heating is in operation, do
not cover the seats with insulating materi-
als ,e .g. blankets, coats, bags ,s eat covers,
child seats or booster seats. ! Make sure that there are no objects in the
footwel lu nder or behind the seats when mov-
ing the seats back. There is ar isk that the
seats and/or the objects could be damaged.
i Further related subjects: R
cargo compartment enlargement (folding
down the rear seats) ( Y
page 240)
Adjusting the seats manually
Vehicles without the seating comfort
package
Seat fore-and-aft adjustment: X
Lift handle C and slid et he seat forwards or
backwards. X
Release lever C again.
Make sure that you hear the seat engage in
position.
Backrest angle: X
Relieve the pressure on the backrest. X
Turn handwheel

Problems with the seat heating Problem
Possible causes/consequences and P Solutions
The seat heating has
switched off prematurely
or cannot be switched
on. The on-board voltage is too low because too many electrical consum-
ers are switched on. X
Switch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will switch
back on automatically.
Steering wheel
Important safety notes
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is ar isk of an accident.
Adjust the driver's seat, head restraint ,s teer-
ing wheel and mirror and fasten your seat belt
before startin gt he engine.
G WARNING
Children could injure themselves if they
adjust the steering wheel. There is ar isk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
Adjusting the steering wheel
G WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is ar isk of an
accident.
Before startin go ff, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. C
Release lever D
Adjust st he steering wheel height

instructions .Y ou will see the current settings
of the various climat ec ontrol functions.
DYNAMIC SELECT button (except
Mercedes-AM Gv ehicles)You can choose betwee nv arious drive programs
with the DYNAMI CS ELEC Tb utton
( Y
page 128).
If you have selected drive program E :R
when heating, the electrical heate rb ooster is
deactivate da nd in the warming-up phase
heat output is reduced R
the rear window defroster running tim ei s
reduced
Dependin gont he configuration, climat es et-
tings may also be influenced in the drive pro-
gram I .
If you have selected drive program C or S ,c li-
mate settings are not influenced.
ECO start/stop function Durin ga utomatic engin es witch-off, the climate
control system only operates at ar educed capa-
city. If you require the full climat ec ontrol output,
you can switc ho ff the ECO start/sto pf unction
by pressing the ECO button ( Y
page 127).
Operating th ec limate control sys-
tems
Activating/deactivating climate con-
trol
General notes When the climat ec ontrol is switched off ,t he air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switc ho ff
climat ec ontrol only briefly
Air-conditioning system X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 122).X
To switch on: turn control

If the battery voltage is too low, the rear window
defroster may switch off.
Activating/deactivating X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 122). X
Press the l button.
The indicator lamp in the l button lights
up or goes out.
Problems with the rear window defroster Problem
Possible causes/consequences and P Solutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated. The battery has not been sufficiently charged. X
Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
Switching air-recirculatio nm ode
on/off
General notes You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefl ytop revent the window sf rom fog-
ging up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 122).X
To activate: press the

Befor et he engine speed reaches the red area,
an upshift indicator will be show nint he multi-
function display. X
Shift to recommende dg ear C whe nm es-
sage D is show nint he multifunction display.
Kickdown X
For maximum acceleration, depress the
accelerator pedal beyond the pressure point.
The automatic transmission shifts to al ower
gea rd epending on the engine speed.X
Shift back up once the desire ds peed is
reached. During kickdown, yo uc annot shift gears using
the steering wheel paddl es hifters.
If yo ua pply ful lt hrottle ,t he automatic trans-
missio ns hifts up to the next gea rw he nt he
maximum engine speed is reached .T hi sp re-
vents the engine from overrevving.
Mercedes-AMG vehicles: it is only possible to
use kickdown in temporary manual drive pro-
gram M .W he nm anual drive program M is per-
manently activated, kickdown is not possible.
Problems with the transmission Problem
Possible causes/consequence sa nd P Solutions
The transmission has
problem ss hifting gear. The transmission is losing oil. X
Have the transmission checke dataq uali fied specialist workshop
immediately.
The acceleration ability
is deteriorating.
The transmission no lon-
ger shifts into al loft he
gears.
Revers eg ea rc an no lon-
ger be engaged. The transmission is in emergency mode. X
Stop the vehicle. X
Shift the transmission to position ] .X
Switch off the engine. X
Wait at least ten seconds before restarting the engine. X
Shift the transmission to position [ .X
Have the transmission checke dataq uali fied specialist workshop
immediately.
Refueling
Important safety notes
G WARNING
Fue lish ighly flammable. If yo uh andle fuel
incorrectly ,t here is ar is koff ire and explo-
sion. You mus ta void fire ,o pe nf lames, creating
sparks and smoking. Switch off the engine
and ,ifa ppli cable, the auxiliary heating before
refueling.
G WARNING
Fue lisp oisonou sa nd hazardou stoh ealth.
There is ar isk of injury.138
Refueling
Drivin ga nd parking