2016 MERCEDES-BENZ CLS-Class Repair

board. This poses an increased risk of injury or
even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe classification of the person in the front-passenger seat is correct and the front-
passenger front air bag is enabled or disa-
bled in accordance with the person in the
front-passenger seat
Rthe person is seated properly with a cor-
rectly fastened seatbelt
Rthe front-passenger seat has been moved
as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not, the front-
passenger seat may not be used. Do not
install a child restraint system on the front-
passenger seat. Have the Occupant Classifi-
cation System (OCS) checked and repaired
immediately at a qualified specialist work-
shop.
GWARNING
Objects between the seat surface and the
child restraint system could affect OCS oper- ation. This could result in the front-passenger
air bag not functioning as intended during an
accident. This poses an increased risk of
injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the forward-
facing child restraint system must, as far as
possible, be resting on the backrest of the
front-passenger seat. Always comply with the
child restraint system manufacturer's instal-
lation instructions.
After the system self-test, the PASSENGER AIR
BAG OFF indicator lamp displays the status of
the front-passenger front air bag (
Ypage 49).
For more information about the OCS, see "Prob-
lems with the Occupant Classification System"
(
Ypage 53).
52Occupant safety
Safety

Have the vehicle towed to a qualified special-
ist workshop in order to have a deployed air
bag replaced.
It is important for your safety and that of your
passenger to have deployed air bags replaced
and to have any malfunctioning air bags
repaired. This will help to make sure the air bags
continue to perform their protective function for
the vehicle occupants in the event of a crash.
GWARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer opera-
tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Ten-
sioning Devices which have been triggered
immediately replaced at a qualified specialist workshop.
An electric motor is used by PRE-SAFE
®to trig-
ger the tightening of the seat belt in hazardous
situations. This procedure is reversible.
If Emergency Tensioning Devices are triggered
or air bags are deployed, you will hear a bang,
and a small amount of powder may also be
released. The 6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your hear-
ing. The powder that is released generally does
not constitute a health hazard, but it may cause
short-term breathing difficulties in people with
asthma or other respiratory problems. Provided
it is safe to do so, you should leave the vehicle
immediately or open the window in order to pre-
vent breathing difficulties.
Air bags and pyrotechnic Emergency Tensioning
Devices (ETDs) contain perchlorate material,
which may require special handling and regard
for the environment. National guidelines must
be observed during disposal. In California, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
Method of operation
During the first stage of a collision, the restraint
system control unit evaluates important physi-
cal data relating to vehicle deceleration or accel-
eration, such as:
Rduration
Rdirection
Rintensity
Based on the evaluation of this data, the
restraint system control unit triggers the Emer-
gency Tensioning Devices during a frontal or
rear collision.
An Emergency Tensioning Device can only be
triggered, if:
Rthe ignition is switched on
Rthe components of the restraint system are
operational. You can find further information
under: "Restraint system warning lamp"
(
Ypage 41)
Rthe belt tongue is engaged in the buckle on
the respective front-passenger seat
The Emergency Tensioning Devices in the rear
compartment are triggered independently of the
lock status of the seat belts.
If the restraint system control unit detects a
more severe accident, further components of
the restraint system are activated independ-
ently of each other in certain frontal collision
situations:
RFront air bags and driver's knee bag
RWindow curtain air bag, if the system deter-
mines that deployment can offer additional
protection to that provided by the seat belt
The front-passenger front air bag is activated or
deactivated depending on the person on the
front-passenger seat. The front-passenger front
air bag can only deploy in an accident if the
PASSENGER AIR BAG OFF indicator lamp is off. Observe the information on the PASSENGER AIR
BAG OFF indicator lamp (
Ypage 42).
Your vehicle has two-stage front air bags. During the fi
rst deployment stage, the front air bag is
filled with propellant gas to reduce the risk of
injuries. The front air bag is fully deployed with
the maximum amount of propellant gas if a sec-
ond deployment threshold is reached within a
few milliseconds.
The activation threshold of the Emergency Ten-
sioning Devices and the air bag are determined
by evaluating the rate of vehicle deceleration or
acceleration which occurs at various points in
54Occupant safety
Safety

Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and driving
safety systems adjusts automatically while a
certain distance is being driven after the vehiclehas been delivered or after repairs. Full system
effectiveness is not reached until the end of this
teach-in procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after several hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its per-
formance in the future.
RYou should therefore drive at varying vehicle
and engine speeds for the first 1000 miles
(1500 km).
RAvoid heavy loads, e.g. driving at full throttle,during this period.
RChange gear in good time, before the tach-
ometer needle is Ôof the way to the red area
of the tachometer.
RDo not manually shift to a lower gear to brake
the vehicle.
RTry to avoid depressing the accelerator pedal
beyond the point of resistance (kickdown).
Additional breaking-in notes for Mercedes-AMG
vehicles:
RDo not drive faster than 85 mph (140 km/h)
for the first 1,000 miles (1,500 km).
ROnly allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
RChange gear in good time.
After 1000 miles (1500 km), you can increase
the engine speed gradually and accelerate the
vehicle to full speed.
You should also observe these notes on break-
ing in if the engine or parts of the drive train on
your vehicle have been replaced.
Always observe the respective maximu
m per-
missible speed.
Self-locking rear axle differential
(Mercedes-AMG vehicles)
Your vehicle is equipped with a self-locking dif-
ferential on the rear axle.
Change the oil to improve protection of the rear axle differential:
Rafter a breaking-in period of 1,850 miles
(3,000 km)
Revery 31,000 miles (50,000 km) or 3 years
These oil changes prolong the service life of the
differential. Have the oil change carried out at a
qualified specialist workshop.
Driving
Important safety notes
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
GWARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
126Driving
Dr iving an d parking

XWait for a voice connection to the Mercedes-Benz Customer Assistance Center.
XAfter the emergency call, close cover :.
If the mobile phone network is unavailable,
mbrace will not be able to make the emergency
call. If you leave the vehicle immediately after
pressing the SOS button, you will not know
whether mbrace placed the emergency call. In
this case, always summon assistance by other
means.
Roadside Assistance button
XTo call Roadside Assistance: press Road-
side Assistance button :.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in Roadside Assistance
button :flashes while the call is active. The
Connecting Call
message appears in the
multifunction display. The audio output is
muted.
If a connection can be made, the Call Con‐
nectedmessage appears in the multifunction
display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
Rcurrent location of the vehicle
Rvehicle identification number
The multimedia system display indicates that a
call is active. During the call, you can change to
the navigation menu by pressing the NAVI but-
ton on the multimedia system, for example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants. From the remote malfunction diagnosis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
(
Ypage 268).
The Mercedes-Benz Customer Assistance Cen-
ter either sends a qualified Mercedes-Benz tech-
nician or makes arrangements for your vehicle
to be transported to the nearest authorized
Mercedes-Benz Center.
You may be charged for services such as repair
work and/or towing.
You can find more information in the separate
mbrace manual.
The system has not been able to initiate a Road-
side Assistance call, if:
Rthe indicator lamp for Roadside Assistance
call button Fis flashing continuously.
Rno voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone net-
work is not available, for example.
The Call Failed
message appears in the mul-
tifunction display.
XTo end a call: press the~button on the
multifunction steering wheel.
or
XPress the corresponding multimedia system
button for ending a phone call.
MB Info call button
XTo call MB Info: press MB Info call button :.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in MB Info call button :
flashes while the connection is being made.
The Connecting Call
message appears in
Features265
Stowage and features
Z

XReleaseth ebrak epedal .
XReleas eth eparking brake.
XSwitc hoff th eignition and leav eth eSmartKey
in th eignition lock.
You can wash th evehicl ein an automatic car
wash from th ever ystart .
If th evehicl eis ver ydirty, pre-was hit before
cleaning it in an automatic car wash.
Afte rusin gan automatic car wash, wipe off wax
from th ewindshield and th ewiper blades. This
will preven tsmears and reduce wipin gnoises
caused by residue on th ewindshield.
Washing by hand
In som ecountries, washing by han dis only
allowe dat specially equipped washing bays.
Observ eth elegal requirements in eac hcountry.
XDo no tuse hot water and do no twash th e
vehicl ein direct sunlight.
XUse asof tspong eto clean.
XUse amild cleaning agent, suc has acar
shampoo approve dby Mercedes-Benz.
XThoroughly hos edown th evehicl ewit h a gen -
tl e je tof water.
XDo no tpoin tth ewater je tdirectly towards th e
air inlet .
XUse plenty of water and rinse out th espong e
frequently.
XRins eth evehicl ewit hclean water and dry
thoroughly wit h achamois.
XDo no tlet th ecleaning agen tdry on th epaint-
work.
Carefully remove all deposit sof road salt as
soo nas possibl ewhen driving in winter.
Power washers
GWARNIN G
The water je tfrom acircular je tnozzle (dir t
blasters )can caus einvisible exterio rdamag e
to th etires or chassi scomponents. Compo-
nent sdamaged in this way may fail unexpect-
edly. There is aris kof an accident.
Do no tuse power washers wit hcircular je t
nozzles to clean th evehicle. Hav edamaged
tires or chassi scomponent sreplace dimme-
diately.
!Always maintai n adistanc eof at least
11.8 in (30 cm) between th evehicl eand th e
powe rwashe rnozzle. Information about th e
correc tdistanc eis available from th eequip -
men tmanufacturer.
Mov eth epowe rwashe rnozzle around when
cleaning your vehicle.
Do no taim directly at any of th efollowing:
Rtires
Rdoor gaps ,roo fgaps ,joints, etc.
Relectrical component s
Rbattery
Rconnectors
Rlights
Rseals
Rtrim
Rventilation slots
Damaged seals or electrical component scan
lead to leak sor failures .
Cleaning the paintwork
!Do notaffix:
Rstickers
Rfilm s
Rmagnetic plates or similar items
to painte dsurfaces. You could otherwise
damag eth epaintwork .
Scratches, corrosiv edeposits, areas affecte dby
corrosio nand damag ecaused by inadequat e
car ecanno talways be completely repaired. In
suc hcases, visit aqualified specialist workshop.
XRemove dirt immediately, wher epossible,
while avoidin grubbing to ohard.
XSoak insec tremain swit hinsec tremove rand
rinse off th etreated areas afterwards .
XSoak bird droppings withwater and rinse off
th etreated areas afterwards .
XRemove coolant, brakefluid ,tree resin, oils ,
fuel sand greases by rubbing gentl ywit h a
cloth soaked in petroleum ether or lighte r
fluid .
XUse tar remove rto remove tar stains.
XUse silicon eremove rto remove wax.
If water no longer forms "beads "on th epain t
surface, use th epain tcar eproducts recommen -
ded and approve dby Mercedes-Benz .This is th e
cas eapproximately every three to fiv emonths,
280Care
Maintenance and care

depending on the climate conditions and the
care product used.
If dirt has penetrated the paint surface or if the
paint has become dull, the paint cleaner recom-
mended and approved by Mercedes-Benz
should be used.
Do not use these care products in the sun or on
the hood while the hood is hot.
XUse a suitable touch-up stick, e.g. MB Touch-
Up Stick, to repair slight damage to the paint- work quickly and provisionally.
Matte finish care
!Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to shine.
!The following may cause the paint to
become shiny and thus reduce the matte
effect:
Rstrong rubbing of the paintwork with
unsuitable materials
Rfrequent use of automatic car washes
Rwashing the vehicle in direct sunlight
!Never use paint cleaner, buffing or polishing
products, or gloss preserver, e.g. wax. These
products are only suitable for high-gloss sur-
faces. Their use on vehicles with matte finish
leads to considerable surface damage (shiny,
mottled areas).
Always have paintwork repairs carried out at a
qualified specialist workshop.
!Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a clear
matte finish. This will help you to avoid damage
to the paintwork due to incorrect treatment.
These notes also apply to light alloy wheels with a clear matte finish.
iThe vehicle should preferably be washed by
hand using a soft sponge, car shampoo and
plenty of water.
iUse only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the vehicle parts
Cleaning the wheels
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
!Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after cleaning.
Braking heats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked.
Cleaning the windows
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring. There
is otherwise a risk of damaging the windows.
!Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals and pollen may under certain circumstances pre-
Care281
Maintenance and care
Z

Tire pressure not reached
If a pressure of 180 kPa (1.8 bar/26 psi) has not
been attained after five minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
Note that tire sealant may escape when you
unscrew the filler hose.
XVery slowly drive forwards or reverse approx-
imately 30 ft (10 m).
XPump up the tire again.
After a maximum of five minutes the tire pres-sure must be at least 180 kPa (1.8 bar/
26 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire
pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
Tire pressure reached
GWARNING
A tire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk of
accident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed the specified maximum speed with a tire that
has been repaired using tire sealant.
The maximum speed for a tire sealed with tire
sealant is 50 mph (80 km/h). The upper part of
the TIREFIT sticker must be affixed to the instru-
ment cluster in the driver's field of vision.
!After use, excess tire sealant may run out of
the filler hose. This could cause stains.
Therefore, place the tire sealant bottle with
filler hose in the plastic bag which is con-
tained in the TIREFIT kit.
HEnvironmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at a qualified specialist
workshop.
If a tire pressure of 180 kPa (1.8 ba r/26 psi) has
been attained after five minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
XStow the tire sealant bottle and the tire infla-
tion compressor.
XPull away immediately.
XStop after driving for approximately ten
minutes and check the tire pressure with the
tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).
GWARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
iIn cases such as the one mentioned above,
contact an authorized Mercedes-Benz Cen-
ter. Or call 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada).
XCorrect the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the Tire and
Loading Information placard on the driver's
side B-pillar or the tire pressure table in the
fuel filler flap for values.
XTo increase the tire pressure: switch on the
tire inflation compressor.
290Flat tire
Breakdown assistance