2022 MERCEDES-BENZ C-CLASS SALOON Owners Manual

If you depress the brake pedal quickly, BAS is
activ
ated:
= BAS automatically boosts the brake pressure.
= BAS can shorten the braking distance.
= ABS prevents the wheels from locking.
The brakes will function as usual once you release
the brake pedal. BAS is deactivated. Function of ESP
n&
WARNING Risk of skidding if ESP n
is
deactiv
ated
If you deactivate ESP n
, ESP n
canno
t carry out
vehicle stabilisation. 
ESP n
should onl
y be deactivated in the
following situations. *
NOTE Mer
cedes-AMG vehicles 
Observe the notes in the Supplement.
Y
ou could otherwise fail to recognise
dangers. The Electronic Stability Program (ESP
n
) can moni-
t
or and improve driving stability and traction in
the following situations within physical limits:
= When pulling away on wet or slippery carriage-
ways.
= When braking.
If the vehicle deviates from the direction desired
by the driver, ESP n
can stabilise the vehicle by
intervening in the following ways:
= One or more wheels are braked.
= The engine output is adapted according to the
situation.
When ESP n
is deactivated, the

ETS/4ETS (Electronic Traction System)
ET
S/4ETS traction control is part of ESP n
and
makes it possible to pull away and accelerate on a
slippery carriageway.
ETS/4ETS can improve the vehicle's traction by
intervening in the following ways:
= The drive wheels are braked individually if they
spin.
= More drive torque is transferred to the wheel
or wheels with traction.
*nOuence of drive programs on ESP n
The drive programs enable ESP n
to adapt to dif-
ferent weather and road conditions as well as the
driver's preferred driving style. Depending on the
selected drive program, the appropriate ESP n
mode will be activated. You can select the drive
programs using the DYNAMIC SELECT switch
(  page 190). Function of ESP
n
Cr osswind Assist ESP
n
Cr
osswind Assist detects sudden gusts of
side wind and helps the driver to keep the vehicle
in the lane:
= ESP n
Crosswind Assist is active at vehicle
speeds between approx. 75 km/h and
200 km/h when driving straight ahead or cor-
nering slightly.
= The vehicle is stabilised by means of individual
brake application on one side. Function of ESP
n
tr
ailer stabilisation &
WARNING Risk of accident in poor r
oad
and weather conditions
In poor road and weather conditions, the
tr
ailer stabilisation cannot prevent lurching of
the vehicle/trailer combination. Trailers with a
high centre of gravity may tip over before
ESP n
detects this. 
Always adapt your driving style to suit
t

he current road and weather conditions. When driving with a trailer, ESP
n
can s
tabilise
your vehicle if the trailer begins to swerve from
side to side:
= ESP n
trailer stabilisation is active above
speeds of 65 km/h.
= Slight swerving is reduced by means of a tar-
geted, individual brake application on one
side.
= In the event of severe swerving, the operating
energy output is also reduced and all wheels
are braked.
ESP n
trailer stabilisation may be impaired or may
not function if:
= The trailer is not connected correctly or is not
detected properly by the vehicle. Driving and parking
231

Activating/deactivating ESP
n
(Electr onic Stability
Program) Multimedia system:
4 © 5

Activating/deactivating the HOLD function
&
WARNING Risk of an accident due t o the
HOLD function being active when you
leave the vehicle
If the vehicle is only braked with the HOLD
function it could, in t
he following situations,
roll away:
= If there is a malfunction in the system or in
the power supply.
= If the HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. by a vehicle occupant. 
Always secure the vehicle against rolling
a
way before you leave it. Requirements:
= The v

ehicle is stationary.
= The driver's door is closed or the seat belt on
the driver's side is fastened.
= The vehicle has been started or has been
automatically switched oM by the ECO start/
stop function. =
The electr
ic parking brake is released.
= Active Distance Assist DISTRONIC is deactiva-
ted.
= The transmission is in position h, k or i.
Activating the HOLD function 
Depress the brake pedal, and aser a shor
t
time quickly depress further until the

=
The electr ic parking brake is released.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal and
depress it before the vehicle begins to roll away. &
WARNING Risk of accident and injur
y due
to the vehicle rolling away
Aser a shor
t time, Hill Start Assist no longer
holds the vehicle. 
Swisly mo
ve your foot from the brake
pedal to the accelerator pedal. Do not
leave the vehicle when it is being held by
Hill Start Assist. Function of Adaptive Brake Lights
Adaptive Brake Lights warn following
tr
aPc in an
emergency braking situation with the following
actions:
= Oashing the brake lamps
= activating the hazard warning lights
( page 138) If the vehicle is braked sharply from speeds above
50 km/h

, the brake lamps Oash rapidly. This pro-
vides traPc travelling behind you with an even
more noticeable warning. ATTENTION ASSIST
Function of ATTENTION ASSIST
A

TTENTION ASSIST assists you on long, monoto-
nous journeys, e.g. on motorways and trunk
roads. If indicators of fatigue or increasing lapses
in concentration on the part of the driver are
detected, the system suggests taking a break.
ATTENTION ASSIST is only an aid. It cannot
always detect fatigue or lapses in concentration in
time. The system is not a substitute for a well-res-
ted and attentive driver. On long journeys, take
regular breaks in good time that allow for ade-
quate recuperation.
You can choose between two settings:
= Standard: normal system sensitivity.
= Sensitive: higher system sensitivity. The driver
is warned earlier and the attention level detec- ted by ATTENTION ASSIST is adapted accord-
ingl

y.
If drowsiness or increasing lapses in concentra-
tion are detected, the ATTENTION ASSIST: Take
a break! warning appears in the driver's display.
You can acknowledge the message and take a
break where necessary. If you do not take a break
and ATTENTION ASSIST continues to detect
increasing lapses in concentration, you will be
warned again aser a minimum of 15 minutes. The following information is displayed in the driv-
er's displa

y:
= The length of the journey since the last break. 234
Driving and parking

=
The att ention level determined by ATTENTION
ASSIST.
The more segments 1 of the circle displayed,
the higher the detected attention level. Fewer seg-
ments 1 are displayed in the circle as the atten-
tion level decreases.
If ATTENTION ASSIST is unable to calculate the
attention level and cannot issue a warning, the
System suspended message appears.
If a warning is given in the driver's display, the
multimedia system oMers to search for a rest
area. You can select a rest area and start naviga-
tion to this rest area.
When you restart the vehicle, ATTENTION ASSIST
is automatically switched on. The last selected
sensitivity level remains stored.
System limits
ATTENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
If the system is not available due to an error, the
warning light is permanently lit Û in the driver
display Particularly in the following situations, ATTENTION
ASSIS T only functions in a restricted manner and
warnings may be delayed or not occur:
= If you have been driving for less than approx-
imately 30 minutes.
= If the road condition is poor (uneven road sur-
face or potholes).
= If there is a strong side wind.
= If you adopt a sporty driving style (high corner-
ing speeds or high rates of acceleration).
= If the Steering Assist function of Active Dis-
tance Assist DISTRONIC is active.
= If the clock is set to the incorrect time.
= If you change lanes and vary your speed fre-
quently in active driving situations.
= if ESP n
is not available
Also observe any information regarding display
messages that can be displayed in the driver's
display. The ATTENTION ASSIST drowsiness or alertness
assessment is r
eset and restarted when continu-
ing the journey in the following situations:
= If you switch oM the vehicle.
= If you unfasten your seat belt and open the
driver's door (e.g. to change drivers or take a
break).
Setting ATTENTION ASSIST
Multimedia system: 4 © 5
Settings 5
Assistance
5 Assistance 5
ATTENTION ASSIST
Setting the sensitivity 
Select = ne
xt to ATTENTION ASSIST . 
Select Standard or Sensitive . Cruise control and limiter
Function of cruise control
Cr

uise control regulates the speed to the value
selected by the driver.
If you accelerate to overtake, forexample, the
stored speed is not deleted. If you remove your Driving and parking
235

foot from the accelerator pedal
aser o vertaking,
cruise control will resume speed regulation back
to the stored speed.
You can store any speed above 20 km/h up to the
maximum design speed or up to the set winter
tyre limit.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers ( page 227).
Mercedes!

switches to passive mode. The