MERCEDES-BENZ CLS COUPE 2008 Repair Manual

Driving safety systems
58
If ABS intervenes:
X
Continue to depress the brake pedal with
force until the braking situation is over.
For full braking application:
X Depress the brake pedal with maximum
force. G
Risk of accident
If ABS is faulty, the wheels could lock when
braking. This limits the steerability of the
vehicle when braking and the braking dis-
tance may increase.
If ABS is deactivated due to a malfunction,
then
BAS and ESP are also deactivated. The
risk of your vehicle skidding is then
increased in certain situations.
You should therefore always adapt your
driving style to suit the prevailing road and
weather conditions. BAS (Brake Assist)
BAS operates in emergency braking situa-
tions.

If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
X Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. G
Risk of accident
If BAS has malfunctioned, the braking sys-
tem
remains available with full brake boost-
ing effect. However, braking force is not
automatically increased in emergency
braking situations and the stopping dis-
tance may increase. Adaptive brake lamps
i Adaptive

brake lamps are only available in
certain countries.
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS,
the brake lamps flash rapidly. In this way,
traffic travelling behind you is warned in an
even more noticeable manner.
If you brake from a speed of more than
70 km/h and bring the vehicle to a halt, the
hazard warning lamps switch on automati-
cally once the vehicle is stationary and the
brake lamps light up constantly if you depress
the brake pedal again. The hazard warning
lamps switch off automatically if you travel
faster than 10 km/h again. Safety
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Driving safety systems
59ESP
®
(Electronic Stability Program)
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tyres
and the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the
vehicle.
The engine output is also modified, if
necessary, to keep the vehicle on the desired
course within the scope of the laws of phys-
ics. ESP ®
assists the driver when pulling away
on wet or slippery roads. ESP ®
can also sta-
bilise the vehicle during braking.
When ESP ®
intervenes, the v warning
lamp flashes in the instrument cluster. G
Risk of accident
If the v
warning lamp in the instrument
cluster flashes, proceed as follows:
R
Do not deactivate ESP ®
under any cir-
cumstances.
R Only depress the accelerator pedal as far
as necessary when pulling away.
R Adapt your driving style to suit the pre-
vailing road and weather conditions.
The vehicle could otherwise go into a skid. ESP
®

cannot reduce the risk of an accident
if you drive too fast. ESP ®
cannot override
the laws of physics.
! If the vehicle is to be towed with the front
or rear axle raised, the ignition must be
switched off (key in position 0 or 1 in the
ignition lock). Application of the brakes by
ESP ®
could otherwise destroy the brake
system on the front or rear axle.
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly.
To deactivate/activate ESP ® ESP
®
is activated automatically when the
engine is running.
It may be best to deactivate ESP ®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel G
Risk of accident
Activate ESP ®
as soon as the situations
described
above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehi-
cle if the vehicle starts to skid or a wheel
starts to spin.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability
R Engine torque is not limited and the drive
wheels are able to spin. The spinning
wheels produce a cutting effect for better
traction.
R traction control is still activated.
R ESP ®
still provides support when you
brake.
i If ESP ®
is deactivated and one or more
wheels start to spin, the v warning lamp
in the instrument cluster flashes. ESP ®
does not, stabilise the vehicle. Safety
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Driving safety systems
601
To deactivate/activate ESP ®
X To deactivate: press button 1.
The v warning lamp in the instrument
cluster lights up.
G Risk of accident
If the v warning lamp in the instrument
cluster is permanently lit when the engine
is running, ESP ®
is deactivated or not avail-
able due to a malfunction. The risk of your
vehicle skidding is then increased in certain
situations.
You should always adapt your driving style
to suit the prevailing road and weather con-
ditions. X
To activate: press button 1.
The v warning lamp in the instrument
cluster goes out.
EBV (electronic brake-power distribu-
tion)
EBV monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability under braking.
G Risk of accident
If EBV is malfunctioning, the brake system
is still available with full brake boosting
effect. However, the rear wheels can still
lock, e.g. under full braking. This could
cause you to lose control of your vehicle
and cause an accident. You should there-
fore adapt your driving style to the different
handling characteristics.
ADAPTIVE BRAKE
Due to its higher level of braking safety,
ADAPTIVE BRAKE offers exceptional braking
comfort. In addition to the braking function,
ADAPTIVE BRAKE also features the conveni-
ence function HOLD (Y page 144). For fur-
ther information, see Driving tips
(Y page 206).
Safety
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Anti-theft systems
61Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
Activating the immobiliser X
With the key: remove the key from the
ignition lock.
X With KEYLESS GO*: press the KEYLESS
GO button on the selector lever.
The engine switches off.
Deactivating the immobiliser X
With the key: turn the key to position 2 in
the ignition lock.
X With KEYLESS GO*: press the KEYLESS
GO button on the selector lever twice with-
out depressing the brake.
i The immobiliser is always deactivated
when you start the engine. ATA* (anti-theft alarm system)
A visual and audible alarm is triggered if the
alarm system is primed and you open:
R a door
R a door using the emergency key element
R the boot lid
R the bonnet
The alarm is not switched off even if you close
an open door again. 1
Indicator lamp
X To prime: lock the vehicle using the key.
On vehicles with KEYLESS GO*, the locking button on the door handle/boot lid can also
be used.
Indicator lamp 1 flashes. The alarm sys-
tem is primed after approximately 15 sec-
onds.
X To deactivate: unlock the vehicle using the
key. On vehicles with KEYLESS GO*, you
can also unlock the vehicle by opening the
door/boot lid.
Switching off the alarm X
With the key: insert the key into the igni-
tion lock.
The alarm is switched off.
or
X Press the Œ or ‹ button on the key.
The alarm is switched off.
X With KEYLESS GO*: pull the door handle.
The key must be outside the vehicle.
The alarm is switched off.
or
X Press the KEYLESS GO button on the selec-
tor lever. The key must be inside the vehi-
cle.
The alarm is switched off. Safety
* optional
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Anti-theft systems
62 Tow-away protection*
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This happens
if the vehicle is jacked up on one side, for
example.
Priming tow-away protection X
Lock the vehicle using the key. On vehicles
with KEYLESS GO*, the locking button on
the door handle/boot lid can also be used.
Tow-away protection is primed after
approximately 30 seconds.
To deactivate tow-away protection When you unlock your vehicle using the key
or KEYLESS GO*, tow-away protection is
automatically deactivated.
Deactivate tow-away protection manually to
prevent a false alarm if your vehicle:
R
is being transported
R is being loaded, e.g. onto a ferry or car
transporter
R is being parked on a movable surface, e.g.
split-level garages 1
To deactivate tow-away protection
2 Indicator lamp
X Remove the key from the ignition lock.
X Press button 1.
Indicator lamp 2 lights up briefly.
X Lock the vehicle using the key. On vehicles
with KEYLESS GO*, the locking button on
the door handle/boot lid can also be used.
Tow-away protection remains deactivated
until the vehicle is unlocked and locked
again. Interior motion sensor*
If the interior motion sensor is primed, a vis-
ual and audible alarm is triggered if move-
ment is detected in the vehicle interior while
the vehicle is locked. This occurs, for exam-
ple, if someone breaks the side windows of
your vehicle or reaches into the vehicle's inte-
rior.
Priming the interior motion sensor X
Make sure that:
R
the side windows are closed
R the sliding/tilting sunroof* is closed
R there are no objects, e.g. mascots, hang-
ing on the rear-view mirror or on the
grasp handles on the roof trim.
This will prevent false alarms.
X Lock the vehicle using the key or, on vehi-
cles with KEYLESS GO*, using the locking
buttons on the door handle/boot lid.
The interior motion sensor is primed after
approximately 30 seconds. Safety
* optional
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Anti-theft systems
63
To deactivate the interior motion sen-
sor To prevent a false alarm, deactivate the inte-
rior motion sensor if you lock your vehicle and
R
people or animals remain in the vehicle
R the windows remain open
R the sliding/tilting sunroof* remains open 1
To deactivate the interior motion sensor
2 Indicator lamp X
Remove the key from the ignition lock.
X Press button 1.
Indicator lamp 2 flashes briefly.
X Lock the vehicle using the key. On vehicles
with KEYLESS GO*, the locking button on
the door handle/boot lid can also be used.
The interior motion sensor remains deacti-
vated until the vehicle is unlocked and
locked again. Safety
* optional
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65
Opening and closing
...........................66
Key positions ....................................... 74
Seats .................................................... 75
Steering wheel .................................... 81
Mirrors ................................................. 83
Memory functions* ............................. 86
Seat belts ............................................. 88
Lights ................................................... 91
Windscreen wipers .............................97
Side windows ...................................... 98Driving and parking ..........................
101
Transmission ..................................... 104
Instrument cluster ............................109
On-board computer ..........................111
Driving systems ................................ 132
Air conditioning ................................. 151
Sliding sunroof .................................. 169
Loading and stowing ........................172
Features ............................................. 180 Controls
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Opening and closing
66 Opening and closing
Key
The vehicle's equipment includes two keys
with remote control. Each key contains an
emergency key element.
The key is configured at the factory to cen-
trally lock and unlock the following:
R the doors
R the boot lid
R the fuel filler flap G
Risk of accident
Never leave children unsupervised in the
vehicle. They could open a door from the
inside, even if it has been locked, or start
the vehicle if the key is left in it. They could
endanger themselves and others. You
should therefore take the key with you
when leaving the vehicle, even if you are
only leaving it for a short time.1 j Locking button
2 i Unlocking button for the boot lid
3 k Unlocking button
4 Battery check lamp
i The key can also be used to open and
close the sliding/tilting sunroof* and the
side windows. You can open them using the
summer opening feature (Y page 100). You
can close them using the convenience clos-
ing feature ( Y page 100). Factory settings
X
To unlock centrally: press the k but-
ton.
The turn signals flash once. The locking
knobs in the doors pop up. The anti-theft
alarm system* is deactivated.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer.
i If you do not open either a door or the
boot lid after you have unlocked the vehi-
cle, it will automatically relock after approx-
imately 40 seconds.
X To lock centrally: press the j button.
The turn signals flash three times if the
doors and boot lid are closed. The locking
knobs in the doors drop down. The anti-
theft alarm system* and the immobiliser
are primed.
Individual settings
You can change the setting of the locking
system in such a way that pressing the
k button only unlocks the driver's door
and the fuel filler flap. This is useful if you fre-
quently travel on your own.
Controls
* optional
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Opening and closing
67
X
To change the setting: press the k
and j buttons simultaneously for
approximately six seconds until the battery
check lamp flashes twice.
The key now functions as follows:
X To unlock the driver's door: press the
k button once.
X To unlock centrally: press the k but-
ton twice.
X To lock centrally: press the j button.
Restoring the factory settings X
Press the k and j buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice. KEYLESS GO*
If you are carrying the KEYLESS GO key on
your person, you can use the KEYLESS GO
functions of your vehicle. The KEYLESS GO
key should not be more than one metre away
from the vehicle. However, you can also use
the KEYLESS GO key like a normal key with
remote control.
When you pull the door handle, the following
unlock centrally if the factory settings have
not been changed:
R the doors
R the boot lid
R the fuel filler flap G
Risk of accident
Never leave children unsupervised in the
vehicle. They could open a door from the
inside at any time, even if it has been
locked. Or they could start the vehicle if a
valid KEYLESS GO key is in the vehicle and
they press the KEYLESS GO button on the
gear selector lever. They could endanger
themselves and others. Switch off the
engine and take the KEYLESS GO key with
you, even if you are only leaving the vehicle
for a short time. 1
j Locking button
2 i Unlocking button for the boot lid
3 k Unlocking button
4 Battery check lamp
i You can also use the KEYLESS GO key to
open and close the side windows and slid-
ing/tilting sunroof* . You can open them
using the summer opening feature
(Y page 100). You can close them using
the convenience closing feature
(Y page 100).
i If the vehicle has been parked for a long
time, you must pull the door handle to acti-
vate the KEYLESS GO functions. Controls
* optional
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