2018 MERCEDES-BENZ CLA wiring

Operating safety
Important safet yn otes
G WARNING
If you do not have the prescribed service/
maintenanc ew ork or any required repairs
carried out, this can result in malfunctions or
system failures. There is ar isk of an accident.
Always have the prescribed service/mainte-
nanc ew ork as well as any required repairs
carried out at aq ualified specialist workshop.
G WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is ar isk
of fire.
When driving off road or on unpaved roads,
chec kt he vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
G WARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardiz et he operatin gs afety of
the vehicle. There is an increased risk of an
acciden ta nd injury.
Never tamper with the wiring as well as elec-
tronic component sort heir software. You
should have all work to electrical and elec-
tronic equipment carried out at aq ualified
specialist workshop. ! There is ar isk of damage to the vehicle if: R
the vehicle becomes stuck ,e .g. on ah igh
curb or an unpaved road R
you drive too fast over an obstacle, e.g. a
curb, as peed bump or ap othole in the roadR
ah eavy objec ts trikes the underbody or
parts of the chassis
In situation sl ike this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the loads they are designed
to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust
system, they can catc hf ire.
In such situations, have the vehicle checked
and repaired immediately at aq ualified spe-
cialist workshop. If on continuin gy our jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult aq ualified spe-
cialist workshop.
Declarations of conformity USA: "The wireless devices of this vehicle com-
ply with Part 15 of the FCC Rules. Operation is
subject to the two following two conditions :1 )
These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation .C hanges
or modifications not expressly approved by the
party responsible for complianc ec ould void the
user’s authorit ytoo perate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions :( 1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."Operating safety 27
Introduction Z

Panic alarm X
To activate: press and hold the
3 button C for approx. one second.
Av isual and audible alarm is triggered if the
alarm system is armed. X
To deactivate: press 3 button C again.
or X
Insert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑ GOX
Press the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces
to which vehicle occupants are subjected during
an accident.
The restraint system comprises: R
Seat belt system R
Air bags R
Child restraint system R
Child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants: R
have fastened their seat belts correctly
( Y
page 43)R
have the seat and head restraint adjusted
properly ( Y
page 90) As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position ( Y
page 90).
You also have to make sure that an air bag can
inflate properly if deploye d( Y
page 45).
An air bag supplements ac orrectly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par-
ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against object sp enetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" ( Y
page 52).
See "Children in the vehicle" for information on
children traveling with you in the vehicle as well
as on child restraint systems ( Y
page 54).
Important safety notes
G WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even
fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate ap erson with
disabilities, contact an authorized Mercedes-
Benz Center for details. USA only: for further
information contact our Customer Assistance
Center at 1-800-FOR-MERCedes
(1 ‑ 800 ‑ 367 ‑ 6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.40
Occupant safety
Safety

General notes The multimedia system section in this Opera-
tor's Manua ld escribes the basi cp rinciples for
operation. More information can be found in the
Digital Operator's Manual.
Important safety notes
G WARNING
If you operate information systems and com-
municatio ne quipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle .T here is ar isk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the lega lr equirements for the
country in which you are currently driving when
operating the multimedia system.
The multimedia system calculates the route to
the destination withou tt aking the following into
account, for example: R
traffic lights R
stop and yield signs R
parking or stopping restrictions R
road narrowing R
other road and traffic rule sa nd regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example: R
ad iverted route R
the road layout or the direction of ao ne-way
street has been changed
For this reason, you must alway so bserve road
and traffic rule sa nd regulations during your
journey. Roa da nd traffic rule sa nd regulations
alway sh ave priority over multimedia system
driving recommendations. Navigation announcements are intended to
direct you whil ed riving withou td iverting your
attention from the road and driving.
Please alway su se this feature instead of con-
sulting the map display for directions. Looking
at the icons or map display can distract you from
traffic conditions and driving, and increase the
risk of an accident.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equip-
ment and meets the FCC radi of requency (RF)
Exposure Guidelines in Supplement CtoO ET65.
This equipment has very low level sofRFe nergy
that is deeme dtoc omply withou tm aximum
permissive exposure evaluation (MPE). How-
ever, it is recommended to insta l l it at ad istance
of at least 8i nches (approx. 20 cm) betwee nt he
radiation source and ap erson's body (not
including limb ss uch as hands, wrists, feet and
legs).
G WARNING
Modifications to electronic components, their
software as wel lasw iring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle .T here is an increase dr isk of an
accident and injury.
Never tamper with the wiring as wel lase lec-
tronic components or their software .Y ou
shoul dh ave all work to electrica la nd elec-
tronic equipment carried out at aq ualified
specialist workshop.
Function restrictions
For safety reasons, some functions are restric-
ted or unavailable whil et he vehicle is in motion.
You wil ln otice this, for example, because either
you wil ln ot be abl etos elect certain menu items
or am essag ew il la ppear to this effect.Function restrictions 229
Multimedia system Z