lock MERCEDES-BENZ CLA 2017 Service Manual

sure fluctuations in the vehicle interior.
Change the position of the sliding sunroof or
open a side window slightly to reduce or elim-
inate these noises.
Sliding sunroof reversing feature In the following section, the term "sliding sun-
roof" refers to the panorama roof with power
tilt/sliding panel.
The sliding sunroof is equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts the sliding sunroof during the closing
process, the sliding sunroof opens again auto-
matically. However, the automatic reversing
feature is only an aid and does not relieve you of
the responsibility of paying attention when clos-
ing the sliding sunroof.
G WARNING
The reversing feature does not react: R
to soft, light and thin objects, e.g. small fin-
gers R
over the last 1/6 in (4 mm) of the closing
movement R
during resetting R
when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the
automatic closing process
The closing process is stopped. Operating the panorama roof with
power tilt/sliding panel
Opening and closing
C
To raise D
To open

If contact is made with a roof carrier approved
by Mercedes-Benz, the sliding sunroof lowers
slightly but remains raised at the rear.
Rain-closing feature The rain-closing feature is only available for vehi-
cles with a rain sensor.
When the SmartKey is in position 0 in the igni-
tion lock or is removed, the sliding sunroof
closes automatically: R
if it starts to rain. R
at extreme outside temperatures. R
after six hours. R
if there is a malfunction in the power supply.
The panorama roof with power tilt/sliding panel
remains raised at the rear in order to allow ven-
tilation of the vehicle interior.
If the panorama roof with power tilt/sliding
panel is obstructed while being closed by the
rain-closing feature, it opens again slightly. The
rain-closing feature is then deactivated.
The panorama roof with power tilt/sliding panel
does not close if: R
it is raised at the rear. R
it is blocked. R
no rain is falling on the area of the windshield
being monitored by the rain sensor. If the
vehicle is under a bridge or in a carport, for
example, the field of the sensor may be cov-
ered.
Operating the roller sunblind for the
panorama roof with power tilt/sliding
panel
Important safety notes
G WARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid-
ing sunroof during automatic opening or clos-
ing. There is a risk of injury.
When opening or closing, make sure that no
body parts are in the sweep of the roller sun-
blind. If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
The roller sunblind shields the vehicle interior
from sunlight. The roller sunblind can only be
opened and closed when the panorama roof
with power tilt/sliding panel is closed.
Roller sunblind reversing feature The roller sunblind is equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts the roller sunblind during the closing
process, the roller sunblind opens again auto-
matically. However, the automatic reversing
feature is only an aid and does not relieve you of
the responsibility of paying attention when clos-
ing the roller sunblind.
G WARNING
The reversing feature does not react: R
to soft, light and thin objects, e.g. small fin-
gers R
when closing the roller sunblind again man-
ually immediately after automatic reversal
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing the roller sunblind, make sure
that no body parts are in the sweep area.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the
automatic closing process
The closing process is stopped.86
Panorama roof with power tilt/sliding panel
Opening and closing

Problems with the panorama roof with power tilt/sliding panel
G WARNING
If you do not reset the sliding sunroof after a malfunction or voltage supply interruption, then the
backing up function will malfunction or not work. The sliding sunroof closes with increased or
maximum force. Parts of the body could be trapped in the closing area in the process. This poses
an increased risk of injury or even fatal injury.
In such or similar situations always make sure that no parts of the body are in the closing area.
Always reset the sliding sunroof after a malfunction or voltage supply interruption.
! If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact a
qualified specialist workshop.
Problem
Possible causes/consequences and P Solutions
The panorama roof with
power tilt/sliding panel
cannot be closed and
you cannot see the
cause. If the panorama roof with power tilt/sliding panel is obstructed during
closing and reopens again slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the panorama roof with power tilt/sliding
panel is closed.
The panorama roof with power tilt/sliding panel is closed with more
force.
If the panorama roof with power tilt/sliding panel is obstructed again
during closing and reopens again slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the panorama roof with power tilt/sliding
panel is closed.
The panorama roof with power tilt/sliding panel is closed without
the automatic reversing feature.88
Panorama roof with power tilt/sliding panel
Opening and closing

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 a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk 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 a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. C
Release lever D
Adjusts the steering wheel height

Mirrors
Rear-view mirror X
Anti-glare mode: flick anti-glare lever C for-
wards or back.
Exterior mirrors
Adjusting the exterior mirrors
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 a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 121). X
Exterior mirror on the front-passenger side:
press button D .
Exterior mirror on the driver's side: press but-
ton C .
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected exterior
mirror using button

Folding the exterior mirrors in or out
electrically X
Turn th e SmartKey to position 1 or 2 in th e
ignition loc k ( Y
page 121).X
Briefly press C .
Both exterio r mirror s fol d in or out .
i Mak e sure that th e exterio r mirror s are
always folded out fully while driving . They
could otherwise vibrate .
i If you are driving faste r than 30 mph
(47 km/h), you can no longer fol d in th e exte -
rio r mirrors.
Resetting the exterior mirrors If th e battery has been disconnected or com-
pletely discharged, th e exterio r mirror s must be
reset . The exterio r mirror s will otherwise no t
fol d in when you select th e "Fold in mirror s when
locking" function in th e on-board computer
( Y
page 185). X
Turn th e SmartKey to position 1 in th e ignition
loc k ( Y
page 121).X
Briefly press C .
Folding the exterior mirrors in or out
automatically If th e "Fold in mirror s when locking" function is
activated in th e on-board computer
( Y
page 185): R
th e exterio r mirror s fol d in automatically as
soo n as you loc k th e vehicl e from th e outside .R
th e exterio r mirror s fol d out again automati-
call y as soo n as you unlock th e vehicl e and
then open th e driver' s or front-passenger
door . i If th e exterio r mirror s have been folded in
manually, they do no t fol d out .
Exterior mirror pushed out of position If an exterio r mirror has been pushed out of
position , procee d as follows :X
Vehicles without electricall y folding exte-
rior mirrors : mov e th e exterio r mirror int o
th e correct position manually. X
Vehicles with electricall y folding exterior
mirrors : press and hold mirror-foldin g butto n
( Y
page 96 )u ntil you hear the mirror click into
place.
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
( Y
page 95).
Automatic anti-glare mirrors
G WARNING
Electrolyte may escape if the glass in an auto-
matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with the electrolyte,
observe the following: R
Rinse off the electrolyte from your skin
immediately with water. R
Immediately rinse the electrolyte out of
your eyes thoroughly with clean water. R
If the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting. R
If electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately. R
Immediately change out of clothing which
has come into contact with electrolyte. R
If an allergic reaction occurs, seek medical
attention immediately.
The "Automatic anti-glare mirrors" function is
only available if the vehicle is equipped with the
"Mirrors package".96
Mirrors
Seats, steering wheel an d mirrors

When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the SmartKey is not in the igni-
tion lock.
Storing settings With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as a single
memory preset: R
seat and backrest position R
driver's side: position of the exterior mirrors
on the driver's and front-passenger sides
X
Adjust the seat ( Y
page 91).X
Adjust the exterior mirror on the driver's side
( Y
page 95).X
Briefly press the M memory button and then
press preset position button 1 , 2 or 3 within
three seconds.
The settings are stored in the selected preset
position. A tone sounds when the settings
have been completed.
Calling up a stored setting X
Press and hold the relevant preset position
button 1 , 2 or 3 until the seat and exterior
mirrors are in the stored position.
i The setting procedure is interrupted as soon
as you release the storage position button.98
Memory function
Seats, steering wheel and mirrors

take precedence over the daytime running
lamps.
USA only:
The daytime running lamps improve the visibility
of your vehicle during the day. To do this, the
daytime running lamps function must be
switched on using the on-board computer
( Y
page 184).
If the engine is running and you turn the light
switch to the ` or X position, the manual
settings take precedence over the daytime run-
ning lamps.
Low-beam headlamps Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps come on when the ignition is switched on
and the light switch is set to the X position.
This is a particularly useful function in the event
of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi-
tion 2 or start the engine.X
Turn the light switch to X .
The green X indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. Please take note of the country-specific
regulations for the use of rear fog lamps. X
To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2 o r
s
tart the engine. X
Turn the light switch to X or X .X
Press the ^ button.
The yellow ^ indicator lamp in the instru-
ment cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow ^ indicator lamp in the instru-
ment cluster goes out.
i When the rear fog lamp is switched on, the
center brake lamp in the tail lamp switches off
due to a legal requirement.
Parking lamps
! If the battery charge is very low, the parking
lamps or standing lamps are automatically
switched off to enable the next engine start. Always park your vehicle safely and in a well lit
area, in accordance with the relevant legal
stipulations. Avoid using the ` parking
lamps over a period of several hours. If pos-
sible, switch on the right-hand d or left-
hand c standing lamps. X
To switch on: turn the light switch to ` .
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated. X
To switch on the standing lamps: the
SmartKey should not be in the ignition lock or
it should be in position 0 .X
Turn the light switch to c (l eft-hand side of
the vehicle) or d (right-hand side of the
vehicle).
Combination switch
X
To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow D or

Interior lighting control
General notes In order to preven t th e vehicle's battery from
discharging , th e interio r lighting function s are
automatically deactivated after som e time
except when th e SmartKey is in position 2 in th e
ignition lock.
The color and brightness for th e ambien t lighting
may be set via th e multimedia system; see th e
separat e operating instructions.
Automatic interior lighting control X
To switch on: set th e switch to center posi-
tion

X
Insert the new bulb into bulb holder D .X
Insert bulb holder D and turn it clockwise.X
Press on housing cover C and turn it to the
right. X
Replace the cover in the front wheel housing
( Y
page 104).
High-beam headlamps/daytime run-
ning lamps/parking lamps and stand-
ing lamps (halogen headlamps) X
Switch off the lights. X
Open the hood. X
Turn housing cover C counter-clockwise and
remove it. X
Turn bulb holder D counter-clockwise and
pull out. X
Insert the new bulb and engage it to the stop. X
Press on housing cover C and turn it to the
right.
Turn signals (halogen headlamps)
X
Switch off the lights. X
Open the hood. X
Turn bulb holder C counter-clockwise and
pull out. X
Turn the bulb counter-clockwise and pull it
out of bulb holder C .X
Insert the new bulb into bulb holder C .X
Insert bulb holder C and turn it clockwise
until it engages.
Replacing rear bulbs
Opening and closing the side trim pan-
els
View of right-hand side trim panel
You must open the side trim panel in the trunk
before you can replace the bulbs in the tail
lamps. X
To open: release right or left side trim
panel C at the top and fold it down in the
direction of the arrow. X
To close: insert side panel C .
Tail lamps X
Switch off the lights. X
Open the trunk. X
Open the side trim panel ( Y
page 105).Replacing bulbs 105
Lights and windshield wipers Z