
Seats
80
3
Massage function
4 Upper back support
5 Lumbar region support
6 Seat cushion length
X To activate/deactivate:  press button 1.
The indicator lamp in the button lights up/
goes out.
When switched on, the message  Driving
dynamics seat adjustment appears in
the multi-function display for five seconds.
Massage function (PULSE) The massage function helps you to prevent
muscle tension on long journeys.
X
Press button 3.
The indicator lamp in the button lights up.
The air cushions in the lumbar region
vibrate for approximately five minutes. Seat ventilation*
The three blue indicator lamps in the button
indicate the ventilation level you have selec-
ted. 1
Seat ventilation
X Make sure that the key is in position 1 or
2 in the ignition lock.
X To switch on:  press button 1 repeatedly
until the required ventilation level is set.
i If you open the side windows and the slid-
ing sunroof* using the key ( Y page 100),
the driver's seat ventilation automatically
switches to the highest level.
X To switch off:  press button 1 repeatedly
until all the indicator lamps go out. i
If the battery voltage is too low, the seat
ventilation switches off temporarily. Seat heating*
The three red indicator lamps in the button
indicate the heating level you have selected. 1
Front-seat heating Controls
* optional
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On-board computer
118
Resetting the current lap
X
Press the æ button to stop the RACE-
TIMER.
X Press the  ç button to reset the lap time
to "0".
Deleting all laps
If you have switched off the engine, the RACE-
TIMER is reset to "0" after 30 seconds. All laps
are deleted.
It is not possible to delete a single stored lap
on its own.
X Press the æ button to stop the RACE-
TIMER.
X Press the reset button on the left of the
instrument cluster twice.
X Press the æ button to start the RACE-
TIMER.
All laps are deleted.
Overall evaluation This function is only available if you have
stored at least one lap and have stopped the
RACETIMER.
X
Press the  j button repeatedly until the
overall evaluation appears. 1
RACETIMER overall evaluation
2 Total time driven
3 Top speed
4 Distance covered
5 Average speed
Lap evaluation This function is only available if you have
stored at least two laps and have stopped the
RACETIMER.
X
Press the  j button repeatedly until a lap
evaluation appears.
Each lap is shown in a separate submenu.
You are able to see the fastest lap by flash-
ing symbol  1. 1
Lap
2 Lap time
3 Top speed
4 Lap length
5 Average lap speed
X Press the j or k button to select a
different lap evaluation. Audio/TV*/DVD* menu
Use the functions in the  Audio/TV/DVD
menu to operate the audio equipment or
COMAND APS*. If the audio equipment or
COMAND APS* is switched off, the multi-
function display shows the  Audio off mes-
sage.
i Menu overview: see ( Y page 114).
Use the buttons on the multi-function steer-
ing wheel. Controls
* optional
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Battery
288 Battery
Notes on the battery
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period.
To prevent damage from corrosion, only
replace the battery with one that has a central
ventilation cover.
Consult a Mercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
a long period of time. G
Risk of injury
Comply with safety precautions and take
protective measures when handling batter-
ies.Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the bat-
tery. Avoid creating
sparks.
Battery acid is caustic.
Avoid contact with the
skin, eyes or clothing.
Wear suitable protective
clothing, in particular
gloves, an apron and a
face mask.
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.
Wear eye protection.
Keep children away.
Observe this Owner's
Manual.
H Environmental note
Do not dispose of batteries with the house-
hold rubbish. Dispose of defective batteries
in an environmentally responsible manner.
Take them to a Mercedes-Benz Service
Centre or a special collection point for old
batteries.
G Risk of injury
Mercedes-Benz recommends that, for
safety reasons, you only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz. These bat-
teries provide increased impact protection
to prevent vehicle occupants from suffering
acid burns should the battery be damaged
in the event of an accident.
To prevent acid burns, observe the follow-
ing safety notes when handling batteries:
R Do not lean over batteries.
R Do not place any metal objects on a bat-
tery. You could otherwise cause a short
circuit and the battery's highly flammable
gas mixture could ignite.
R Make sure that you do not create elec-
trostatic charge, e.g. by wearing syn-
thetic clothing or as a result of friction on
fabrics. You should not therefore pull or
slide the battery over carpets or other
synthetic materials.
R Never touch the battery first. To dis-
charge a possible electrostatic charge,
Practical advice
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Jump-starting
291
X
Charge the battery. Observe the notes in
the operating instructions for your battery
charger.
X Refit the charged battery.
To do this, follow the steps described in
"Removing the battery" 
(Y page 290) in
reverse order.
!  Do 
 not fit refillable batteries without elec-
trostatic protection. The electrostatic dis-
charge could otherwise cause the battery
to explode. The battery acid released could
cause damage to your vehicle.
Further information on electrostatic protec-
tion (Y page 289). G
Risk of injury
Battery acid is caustic. Avoid contact with
the skin, eyes or clothing. Reconnecting the battery
!  Always reconnect the battery in the
sequence 
described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers.
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose. Make sure that
a 
cell cap is fitted between the battery and
the breather hose.
X Refit the electrostatic protection if neces-
sary ( Y page 289).
i If 
 the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R Set the time (Y page 125).
R Reset the sliding/tilting sunroof*
(Y page 171).
R Reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once ( Y page 84). Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle 
or from an external battery using jump
leads.
Observe the following points:
R Jump-starting must only be performed
when the engine and catalytic converter
are cold.
R Do not start the engine if the battery has
frozen. Thaw the battery out first.
R Jump-starting may only be performed from
12V batteries.
R Only use jump leads which are protected
against polarity reversal and which have a
sufficient cross-section and insulated ter-
minal clamps.
i Jump leads which are protected against
polarity reversal and further information
about jump-starting can be obtained from
any Mercedes-Benz Service Centre.
!  Avoid repeated and lengthy starting
attempts.
Never start the vehicle using a rapid battery
charger. Practical advice
* optional
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Vehicle dimensions
309Vehicle dimensions
CLS 280
CLS 350
45 CLS 350 CGI
45 CLS 500 CLS 63 AMG CLS 320 CDI
Vehicle length
(ECE) 4,917 mm 4,917 mm 4,917 mm 4,917 mm 4,915 mm 4,917 mm
Vehicle width
with exterior
mirrors 
folded
out 2,107 mm 2,107 mm 2,107 mm 2,107 mm 2,107 mm 2,107 mm
Vehicle height 1,430 mm 1,430 mm 1,430 mm 1,415 mm 1,389 mm 1,430 mm
Wheelbase 2,854 mm 2,854 mm 2,854 mm 2,854 mm 2,854 mm 2,854 mm
45
Only for certain countries. Technical data
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