2012 MERCEDES-BENZ C-CLASS SALOON tow bar

There is in
terference from a po werful radio
signal source.
The KEYLESS-GO function is impaired by,for
ex ample:
R high voltage po wer lines
R mobile phones
R electronic devices (no tebooks, tablets)
R shielding due tome tal objects or induction
loops for electrical gate systems or auto‐
matic bar riers #
Make sure that there is suf ficient dist ance
between theke y and the po tential sou rce of
inter fere nce. Ac
tivating/deactivating the automatic lo ck‐
ing feature The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. #
Toactivate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds. #
Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds. In
thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R While theve hicle is being tow star ted/
pushed.
R Ifth eve hicle is being tested on a roller dyna‐
mome ter. Locking/unlocking
the driver's door with the
emer gency key %
Ifyo u wish tolock theve hicle entirely using
th e emer gency key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the emer gency key. Opening and closing
79
Internal use only

Ad
justing the front seat electrically 1
Head restra int height
2 Seat backrest inclination
3 Seat height
4 Seat cushion length
5 Seat cushion inclination
6 Seat fore -and-aft position #
Save the settings with the memory function
(/ page 111). Ad
justs the 4-w aylumbar support 1
Higher
2 Softer
3 Lower
4 Firmer #
Using buttons 1to4 , adjust the conto ur
of the backrest individually tosuit your bac k. Head
restra ints Ad
justing the front seat head restra ints
mechanically &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel and the mir ror and fas‐
te nyo ur seat belt. Seats and
stowing 103
Internal use only

Fi
tting/ removing the rear seat head
re stra ints
Re moving #
Release there ar seat backrest and fold it for‐
wa rds slightly (/ page114). #
Pull the head restra int upwards as far as it
will go. #
Push release knob 1inthe direction of the
ar row and pull out the head restra int.
Fi tting #
Inse rtthe head restra int such that the
notches on the bar are on the left when
vie we d in the direction of tra vel. #
Push the head restra int down until it
engages. #
Foldthere ar seat backrest back until it
engages. Configuring
the seat settings Multimedia sy
stem:
4 © 5
Comfort 5
Seat comfort #
Select a seat.
Ad justing the backrest side bols ters #
Select Side bolsters . #
Adjust the air cushions. Ad
justing the backrest contour in the lumbar
re gion of the seat backrest (lumbar) #
Select Lumbar . #
Adjust the air cushions. Selecting
the massage prog ramme for the
front seats Multimedia sy
stem:
4 Vehicle 5
a Seats #
Select Driver's seat orPassenger . #
Select Massage. #
Select a massage programme.
The massage programme runs for appro x‐
ima tely 9to 15 minutes, depending on the
setting. #
Toset the massage intensit y:switch High
intensity onO or off ª. Seats and
stowing 105
Internal use only

Obser
vethefo llowing information when you are
loading the bicycle rack with up tothre e bicy‐
cles:
Loading the bicycle rack To
tal weight
of bicycle
rack and
load Max. dis‐
tance
1 1 Max. dis‐
tance
2 2
Up to75 kg 420 mm 300 mm Ve
hicle towing instructions
The vehicle is not suitable forth e use of tow bar
sy stems that are used forflat towing or ding hy
to wing, forex ample. Attach ing and using tow bar
sy stems can lead todamage on theve hicle.
When you are towing a vehicle with tow bar sys‐
te ms, safe driving characteristics cannot be
guaranteed forth eto wing vehicle or theto wed
ve hicle. The vehicle-trailer combination may
swer vefrom side toside. Comply with the per‐
mitted towing me thods (/ page 402) and the
instructions forto wing with bo thaxles on the
ground (/ page 403). Driving and parking
243
Internal use only

The multimedia connection unit is
found in the
stow age compartment under the armrest and
has two USB ports.
Depending on theve hicle's equipment, addi‐
tional USB ports can be found in thestow age
compartment of the cent reconsole and in the
re ar passenger compartment. #
Connect the USB device tothe USB port.
Pla yable music files are pla yed back only if
th e cor responding media display is activated.
% Use the USB port identified byç touse
Apple CarPlay ®
and Android Auto.
% Depending on theve hicle equipment there is
an additional USB port in there ar passenger
compartment. Ports th at are labelled with a
bat tery symbol can only be used tocharge
USB devices.
Selecting a track in the media playba ck
Multimedia sy stem:
4 Media
Selecting a track byskipping toa track #
Toskip backwards or forw ards toa
track: navigate up or down. Selecting a track using
the cur rent track list #
Select è. #
Select Current track list. #
Select a tra ck.
Selecting playback options
Multimedia sy stem:
4 Media 5
Z Options
Playing back similar trac ks #
Select Play similar tracks.
A track li stwith similar trac ksis created and
pla yed bac k.
Playback mode #
Select Random playback of the current track
list.
The cur rent track li stis pla yed in random
orde r. #
Select Random playback of the current
medium.
All trac kson the active data storage medium
are pla yed in random orde r. #
Select Normal track sequence .
The cur rent track li stis pla yed in the order it
appears on the data storage medium.
Controlling media playback
Multimedia sy stem:
4 Media 5
Y Playback control
A bar with playback controls is shown. #
Topause playback: select and confirm
Y with th e cent ral control element.
The Ë symbol is displa yed. #
Toresume playback: select and confirm
Y again with the cent ral control element.
The Ì symbol is displa yed.
To fast forw ard/r ewind #
MoveË onthe timeline.
To hide the playback controls #
Press the% button. 350
Multimedia sy stem
Internal use only

If, af
terte n minutes, a tyre pressure of
200 kPa (2.0 bar/29 psi) has been attained: &
WARNING Risk of accident from driving
wi th sealed tyres
A tyre temp orarily sealed with tyre sealant
impairs the handling characteristics and is
not suitable for higher speeds. #
Adapt your driving style according lyand
drive carefull y. #
Do not exceed the maximum speed
limit with a tyre that has been repaired
using tyre sealant. #
Obser vethe maximum permissible speed for
a tyre sealed with tyre sealant 80 km/h. #
Affix th e upper section of the TIREFIT sticker
to the instrument clus ter in a location where
it will be easi lyseen bythe driver.
* NO
TEStaining from leaking tyre sealant Af
ter use, excess tyre sealant may leak out
from thefilling hose. #
Therefore, place thefilling hose in the
plastic bag that con tained the TIREFIT
kit. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal Ty
re sealant contains polluta nts. #
Have the tyre sealant bottle disposed of
professionall y,e.g. at a Mercedes-Benz
Service Centre. #
Switch off the tyre inflation compressor. #
Unscr ew thefilling hose from theva lve of the
defective tyre. #
Stow th e tyre sealant bottle and the tyre
inflation compressor. #
Pull away immediatel y. #
Stop driving af ter appro ximately ten minu tes
and check the tyre pressure using the tyre
inflation compressor.
The tyre pressure must now be at least
13 0 kPa (1.3 bar/19 psi). &
WARNING Risk of accident due tothe
specified tyre pressure not being
attained
If th e specified tyre pressure is not reached,
th e tyre is too badly damaged. The tyre seal‐
ant cannot repair the tyre in this ins tance.
The braking and driving characteristics may
be great lyimpaired. #
Do not continue driving. #
Consult a qualified specialist workshop. Countries
that ha veMercedes-Benz
Service24h: you will find a sticke r with thete le‐
phone number, e.g. on the B‑pillar on the driver's
side. #
Cor rect the tyre pressure if it is still at least
13 0 kPa (1.3 bar/19 psi). See the tyre pres‐
sure table on the fuel filler flap forva lues. #
Toincrease the ty repressure: switch on
th e tyre inflation compressor. Breakdown assis
tance 395
Internal use only

Re
placing the 12V battery #
Obser vethe no tes on the12 V battery
(/ page 396).
Mercedes-Benz recommends that you ha vethe
12 V battery replaced at a qualified specialist
wo rkshop, e.g. at a Mercedes-Benz Service
Centre.
Obser vethefo llowing no tes if youwa ntto
re place the battery yourself:
R Alw aysre place a faulty bat tery with a battery
which meets the specific vehicle require‐
ments.
The vehicle is equipped with an AGMtech nol‐
ogy battery (Absorbent Glass Mat) or a li th‐
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM battery or lith‐
ium-ion batter y.Fo r saf etyre asons,
Mercedes-Benz recommends that you on ly
use bat teries which ha vebeen tested and
appr ovedfo ryo ur vehicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow fittings or term inal co vers from
th e battery being replaced. R
Make sure that theve nt hose is al ways con‐
nected tothe original opening on the side of
th e batter y.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
R Make sure that de tach able parts are recon‐
nected in the same way. To
w- starting or towing away Pe
rm itted towing me thods Plug-in
hybrid: be sure toobser vethe no tes in
th e Supplement. You could otherwise failto rec‐
ognise dangers.
* NO
TEDama gefrom auto matic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer‐
ta in situations:
R Active Brake Assi st
R Active Dis tance Assi stDISTRONIC R
HOLD function
R Active Parking Assist
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Mercedes-Benz
recommends transporting your
ve hicle in the case of a breakdown, rath er than
to wing it away.
Fo rto wing, use a tow rope or tow bar with bo th
axles on the ground. Do not use tow bar sys‐
te ms.
* NO
TEDama getotheve hicle due to tow‐
ing away incor rectly #
Obser vethe instructions and no tes on
to wing away. 402
Breakdown assis tance
Internal use only

#
Atowing dis tance of 50 km must not be
exc eeded. &
WARNING Risk of accident when towing
a ve hicle which is too heavy
If ano ther vehicle is tow- star ted or towed
aw ay, its weight must not exceed the permis‐
sible gross mass of your ow nve hicle, other‐
wise thefo llowing could occur:
R theto wing eye may become de tach ed.
R theve hicle/trailer combination may
swer veoreve nov erturn. #
If ano ther vehicle is tow- star ted or
to we daw ay, its weight must not exceed
th e permissible gross mass of your own
ve hicle. If a
vehicle must be tow- star ted or towe daw ay,
its permissible gross weight must not exceed the
permissible gross weight of theto wing vehicle. #
Information on the permissible gross mass of
th eve hicle can be found on theve hicle iden‐
tification plate (/ page 428). #
Vehicles with automatic transmission: do
not open the driver's door or front passenger
door, otherwise the automatic transmission
automatically shifts toposition j. #
Fittheto wing eye (/ page 406). #
Fasten theto w bar.
* NO
TEDama gedue toincor rect connec‐
tion of theto w bar #
Onlyconnect theto w rope or tow bar to
th eto wing eyes. #
Deactivate the automatic locking mechanism
(/ page 79). #
Do not activate the HOLD function. #
Deactivate tow- aw ay protection
(/ page 96). #
Deactivate Active Brake Assi st
( / page 210). #
Vehicles with automatic transmission:
shift the automatic transmission toposition
i. #
Release the electric parking brake. &
WARNING Risk of accident due tolimi‐
te d saf ety-re lated functions during the
to wing process
Saf ety-re lated functions are limited or no lon‐
ge rav ailable in thefo llowing situations:
R the ignition is switched off.
R the brake sy stem or po werst eering sys‐
te m is malfunctioning.
R the energy supply or the on-board electri‐
cal sy stem is malfunctioning.
When your vehicle is then towe daw ay, signif‐
icantly more ef fort may be requ ired tosteer
and brake than is norm allyrequ ired. #
Use a tow bar. #
Make sure that thesteering wheel can
mo vefreely before towing theve hicle
aw ay. 404
Breakdown assis tance
Internal use only