MERCEDES-BENZ CLA 2016 Owners Manual

Jump-starting For the jump-starting procedure, use only the jump-starting connection point, consisting of a
positive terminal and a ground point, in the engine compartment.
G WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the
battery. Keep children away from batteries. Wash away battery acid immediately with plenty of
clean water and seek medical attention.
G WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is a risk
of an explosion.
Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ven-
tilation while charging and jump-starting. Do not lean over a battery.
G WARNING
During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks
are created, the hydrogen gas can ignite. There is a risk of an explosion. R
Make sure that the positive terminal of a connected battery does not come into contact with
vehicle parts. R
Never place metal objects or tools on a battery. R
It is important that you observe the described order of the battery terminals when connecting
and disconnecting a battery. R
When jump-starting, make sure that the battery poles with identical polarity are connected. R
It is particularly important to observe the described order when connecting and disconnecting
the jumper cables. R
Never connect or disconnect the battery terminals while the engine is running.
G WARNING
A discharged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If the indicator/warning lamps do not light up at low temperatures, it is very likely that the
discharged battery has frozen. In this case you may neither jump-start the vehicle nor charge
the battery. Let the battery thaw first. The service life of a thawed-out battery may be shorter.
The starting characteristics can be impaired, particularly at low temperatures. Have the
thawed-out battery checked at a qualified specialist workshop. Jump-starting 319
Breakdown assistance Z

Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from a second battery using jumper
cables. Observe the following points: R
The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a second battery or a jump-starting device. R
You may only jump-start the vehicle when the engine and exhaust system are cold. R
Do not start the engine if the battery is frozen. Let the battery thaw first. R
Only jump-start from batteries with a 12 V voltage rating. R
Only use jumper cables that are not damaged and have a sufficient cross-section and insu-
lated terminal clamps. R
Make sure that the two vehicles do not touch.
Make sure that: R
the jumper cables are not damaged. R
non-insulated parts of the terminal clamps do not come into contact with other metal parts
while the jumper cables are connected to the battery. R
The jumper cables cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan. X
Secure the vehicle by applying the electric parking brake. X
Shift the transmission to position P .X
Turn the SmartKey to position 0 in the ignition lock and remove it.X
Switch off all electrical consumers, e.g. rear window defroster, lighting, etc. X
Open the hood.
Position number

X
Start the engine of the donor vehicle and run it at idling speed. X
Connect negative terminal

! Make sure that the electric parking brake
is released. If the electric parking brake is
faulty, visit a qualified specialist workshop.
! Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged.
! Do not use the towing eyes for recovery
purposes as this could damage the vehicle.
If in doubt, recover the vehicle with a crane.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! The vehicle can be towed a maximum of
30 miles (50km). The towing speed of
30 mph (50km/h) must not be exceeded.
If the vehicle has to be towed more than
30 miles (50km), the front axle must be
raised or the entire vehicle raised and
transported.
! Do not tow with sling-type equipment.
This could damage the vehicle.
! When towing vehicles with KEYLESS-GO,
use the key instead of the Start/Stop but-
ton. Otherwise, the automatic transmission
may shift to position P when the driver's or
front-passenger door are opened, which
could lead to damage to the transmission.
! Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission.
It is better to have the vehicle transported
than to have it towed away.
If the vehicle can no longer be driven because
of an accident or breakdown, you have the
following options: R
Transporting the vehicle
As a rule, you should have the vehicle trans-
ported. R
Towing the vehicle with a tow rope or tow
bar
Only tow the vehicle in exceptional cases. The battery must be connected and charged.
Otherwise, you: R
cannot turn the SmartKey to position 2 in
the ignition lock R
cannot release the electric parking brake R
cannot shift the transmission to position N
The function of the electric parking brake and
the parking lock is dependent on the on-board
voltage.
If the on-board voltage is low or there is a
system malfunction, it is possible that: R
the electric parking brake may not be
applied in certain circumstances, or R
the transmission may not be shifted to P
Switch off non-essential consumers, e.g. the
radio.
Disarm the automatic locking feature before
the vehicle is towed ( Y
page 222). You could
otherwise be locked out when pushing or
towing the vehicle.
Installing/removing the towing eye
Installing the towing eye
The brackets for the screw-in towing eye are
located in the bumpers. They are at the rear
and at the front, under covers C .322
Towing and tow-starting
Breakdown assistance

X
Remove th e towin g eye from th e stowage
space.
The towin g eye is locate d wit h th e vehicl e
tool ki t under th e cargo compartmen t floor
( Y
page 310).
Vehicles wit h th e TIREFI T kit: th e towin g
eye is beneat h th e tire inflation compres-
sor . X
Press th e mar k on cover C inward s in th e
direction of th e arrow.X
Tak e cover C off th e opening.X
Screw in th e towin g eye clockwise to th e
stop.
Removin g th e towing eyeX
Unscrew and remove th e towin g eye.X
Attac h cover C to th e bumper and press
until it engages. X
Plac e th e towin g eye in th e stowage well
beneat h th e cargo compartmen t floor in
th e cargo compartmen t ( Y
page 310).X
Vehicles wit h th e TIREFI T kit: put bac k th e
tire inflation compressor.
Towing th e veh icle wit h th e fr ont axle
raised
Observ e th e important safet y note s when
towin g your vehicl e wit h th e fron t axl e raised
( Y
page 321).
Only vehicles withou t 4MATIC can be
towe d wit h th e front axle raised .
! Vehicles wit h 4MATIC mus t no t be towed
wit h either th e fron t or th e rear axl e raised,
as doin g so will damag e th e transmission .
Vehicles wit h 4MATIC may either be towed
away wit h bot h axles on th e ground or be loa-
ded up and transported.
! The ignition mus t be switched off if th e
vehicl e is bein g towed wit h th e fron t axl e
raised. Otherwise , ES P ®
may interven e and
damag e th e brak e system. X
On vehicles wit h KEYLESS-G O or th e
KEYLESS-G O star t function: you mus t
use th e SmartKey instead of th e Start/Sto p
butto n ( Y
page 148). X
Mak e sur e that th e vehicl e is stationary.X
Turn th e SmartKey to position 2 in th e igni-
tion lock. X
Whe n th e vehicl e is stationary, depress th e
brak e pedal and keep it depressed. X
Shift th e automatic transmission to posi-
tion P . X
Releas e th e brak e pedal .X
Releas e th e electric parkin g brake.X
Switc h off th e automatic locking
( Y
page 222). X
Switc h on th e hazard warnin g lamp s
( Y
page 117). X
Turn th e SmartKey in th e ignition loc k to
position 0 and leav e th e SmartKey in th e
ignition lock.
Towing a veh icle wit h bot h axles on
th e groun d
It is important that you observ e th e safet y
instruction s when towin g away your vehicl e
( Y
page 321). X
On vehicles wit h KEYLESS-G O or th e
KEYLESS-G O star t function: you mus t
use th e SmartKey instead of th e Start/Sto p
butto n ( Y
page 148).
The automatic transmission automatically
shift s to position P when you open th e driver's
or front-passenger doo r or when you remove
th e SmartKey from th e ignition lock. In order
to ensur e that th e automatic transmission
stays in position N when towin g th e vehicle,
you mus t observ e th e followin g points :X
Mak e sur e that th e vehicl e is stationary.X
Turn th e SmartKey to position 2 in th e igni-
tion lock.Towing and tow-starting 323
Breakdown assistance Z

X
Depress and hold the brake pedal. X
Shift the automatic transmission to posi-
tion N .X
Leave the SmartKey in position 2 in the
ignition lock. X
Release the brake pedal. X
Release the electric parking brake. X
Switch on the hazard warning lamps
( Y
page 117).
i In order to signal a change of direction
when towing the vehicle with the hazard
warning lamps switched on, use the com-
bination switch as usual. In this case, only
the indicator lamps for the direction of
travel flash. After resetting the combina-
tion switch, the hazard warning lamp starts
flashing again.
Transporting the vehicle
4MATIC vehicles/vehicles with auto-
matic transmission
! When the vehicle is loaded for transport,
the front and rear axles must be stationary
and on the same transportation vehicle.
Positioning over the connection point of the
transport vehicle is not permitted. The drive
train may otherwise be damaged.
All vehicles
! You may only secure the vehicle by the
wheels, not by parts of the vehicle such as axle or steering components. Otherwise,
the vehicle could be damaged. X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 147). X
Shift the transmission to position N .
As soon as the vehicle has been loaded: X
Prevent the vehicle from rolling away by
applying the electric parking brake. X
Shift the transmission to position P .X
Turn the SmartKey to position 0 in the igni-
tion lock and remove it. X
Secure the vehicle.
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporting
purposes.
Notes on 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised,
as doing so will damage the transmission.
Vehicles with 4MATIC may only either be
towed away with both axles on the ground or
be loaded up and transported.
If the vehicle's transmission, front, or rear
axle is damaged, have the vehicle transported
on a truck or trailer.
In the event of damage to the electrical
system:
If the battery is defective, the automatic
transmission will be locked in position P . To
shift the automatic transmission to position
N , you must provide power to the vehicle's
electrical system in the same way as when
jump-starting ( Y
page 319).
Have the vehicle transported on a transporter
or trailer.324
Towing and tow-starting
Breakdown assistance

Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-started. You could other-
wise damage the automatic transmission.
i You can find information on "Jump-start-
ing" under ( Y
page 319).
Fuses
Important safety notes
G WARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist workshop, e.g. an authorized
Mercedes-Benz Center.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse rating for the system
concerned. Only use fuses marked with an
"S". Otherwise, components or systems
could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating. Before changing a fuse X
Secure the vehicle against rolling away
( Y
page 169). X
Switch off all electrical consumers. X
Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock. X
Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: open the driver's
door.
The on-board electronics now have status
0 . This is the same as the SmartKey having
been removed.
The fuses are located in various fuse boxes: R
Fuse box in the engine compartment on the
left-hand side of the vehicle, when viewed
in the direction of travel R
Fuse box in the front-passenger footwell
The fuse allocation chart is on the fuse box in
the front-passenger footwell ( Y
page 326).
Fuse box in the engine compartment
G WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses. Fuses 325
Breakdown assistance Z

X
Open the hood. X
Use a dry cloth to remove any moisture
from the fuse box. X
To open: open clamps D .X
Fold up cover C in the direction of the
arrow and remove it.
X
To close: check whether the seal is lying
correctly in cover C .X
Insert cover C at the back into openings

Useful information ............................ 328
Important safety notes ..................... 328
Operation ........................................... 328
Winter operation ............................... 330
Tire pressure ..................................... 332
Loading the vehicle .......................... 339
All about wheels and tires ............... 343
Changing a wheel .............................. 351
Wheel and tire combinations ........... 355 327
Wheels and tires

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops ( Y
page 25).
Important safety notes
G WARNING
If wheels and tires of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct: R
designation R
model
When replacing tires, make sure to use the
correct: R
designation R
manufacturer R
model
G WARNING
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tires without run-flat characteristics: R
do not drive with a flat tire. R
immediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop. Tires with run-flat characteristics: R
pay attention to the information and warn-
ing notices on MOExtended tires (tires with
run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair the operating
safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and inquire about: R
suitability R
legal stipulations R
factory recommendations
Information on the sizes and types of wheels
and tires for your vehicle can be found under
"Wheel/tire combinations" ( Y
page 355).
Information on tire pressure can be found: R
on the Tire and Loading Information placard
on the B-pillar on the driver's side
( Y
page 339) R
in the tire pressure table in the fuel filler flap
( Y
page 168) R
under "Tire pressure" ( Y
page 332)
Operation
Information on driving
Check the tire pressure when the vehicle is
heavily laden and adjust prior to a trip.
While driving, pay attention to vibrations,
noises and unusual handling characteristics,
e.g. pulling to one side. This may indicate that
the wheels or tires are damaged. If you sus-
pect that a tire is defective, reduce your
speed immediately. Stop the vehicle as soon
as possible to check the wheels and tires for
damage. Hidden tire damage could also be
causing the unusual handling characteristics.
If you find no signs of damage, have the tires
and wheels checked at a qualified specialist
workshop.328
Operation
Wheels and tires