Start and driving
The control lamps light up together when the
ignition is s wit
ched on and shoul
d turn off af-
ter approximately 2 seconds. This is the time
taken for the function check.
Hydraulic Brake Assist (HBA) Electronic Stability Control (ESC)
The ESC helps to impr
o
ve safety. It reduces
the tendency to skid and improves the stabili-
ty and roadholding of the vehicle. The ESC
detects critical handling situations, such as
vehicle understeer or oversteer, or wheelspin
on the driving wheels. It stabilises the vehicle
by braking individual wheels or by reducing
the engine torque. The warning lamp will
flash on the instrument panel when the ESC is
intervening !.
The ESC includes the anti-lock brake system
(ABS), the hydraulic brake assist (HBA), the
traction control system (ASR), electronic dif-
ferential lock (EDS), electronic torque control
(XDS) and tractor-trailer sway mitigation*.
ESC also helps stabilise the vehicle by
changing the torque.
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up un-
der braking until the vehicle has reached a
virtual standstill. You can continue to steer the
vehicle even when the brakes are on full.
Keep your foot on the brake pedal and do not pump the brakes. You will feel the brake pedal
pulsat
e whil
e the ABS is working.
Hydraulic Brake Assist (HBA)
The brake assist system can reduce the re-
quired braking distance. The braking force is
automatically boosted if you press the brake
pedal quickly in an emergency. You must
keep pressing the brake pedal until the dan-
ger has passed.
Traction control system (ASR)
In the event of wheelspin, the traction control
system reduces the engine torque to match
the amount of grip available. This helps the
car to start moving, accelerate or climb a
gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes
the spinning wheel and directs the power to
the other driven wheel. This function is active
up to approximately 100 km/h (62 mph).
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The ve-
hicle can still be driven. The EDL will switch on
again automatically when the brake has
cooled down. Tractor-trailer sway mitigation*
If the vehicle is pulling a tr
ailer, it will control
the following: tractor-trailers tend to sway.
When the swaying of the trailer is felt by the
vehicle and detected by the ESC, it will auto-
matically brake the towing vehicle within the
limits of the system and mitigate the sway.
Tractor-trailer sway mitigation is not available
in all countries.
Electronic torque management (XDS)
When taking a curve, the driveshaft differen-
tial mechanism allows the outer wheel to turn
at a higher speed than the inner wheel. In this
way, the wheel that is turning faster (outer
wheel) receives less drive torque than the in-
ner wheel. This may mean that in certain sit-
uations the torque delivered to the inner
wheel is too high, causing the wheels to spin.
On the other hand, the outer wheel is receiv-
ing a lower drive torque than it could transmit.
This causes an overall loss of lateral grip on
the front axle, resulting in understeer or
“lengthening” of the trajectory.
The XDS system can detect and correct this
effect via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the driver
Driving
traction control is disconnected, or the ESC in
Sport mode or disconnect ed.
Multi-collision Br ak
e
In an accident, the multi-collision brake can
help the driver by braking to avoid the risk of
skidding during the accident, which could
lead to further collisions.
The multi-collision brake works for front, side
or rear accidents, when the airbag control
unit records its activation level and the acci-
dent takes place at a speed of over 10 km/h
(6 mph). The ESC automatically brakes the
vehicle, as long as the accident has not dam-
aged the ESC, the brake hydraulics or the on-
board network
The following actions control automatic brak-
ing during the accident:
Index
Total traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
T o
w-st
arting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 58
Tow-starting the engine . . . . . . . . . . . . . . . . . . . . . . 88 special characteristics . . . . . . . . . . . . . . . . . . . . . 87
Tow hitch control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
electrical unlocking . . . . . . . . . . . . . . . . . . . . . . . 332
Towing blind spot detector (BSD) . . . . . . . . . . . . . . . . . 303
special characteristics . . . . . . . . . . . . . . . . . . . . 303
Towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332 also see Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
electrical unlocking tow hitch . . . . . . . . . . . . . 332
fitting a bicycle rack . . . . . . . . . . . . . . . . . . . . . . 333
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 335
retrofitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
338
Towing the vehicle . . . . . . . . . . . . . . . . . . . . 57, 87, 89 automatic gearbox . . . . . . . . . . . . . . . . . . . . . 88, 89
driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 91
four-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
front towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
manual gearbox . . . . . . . . . . . . . . . . . . . . . . . 88, 89
rear towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
special characteristics . . . . . . . . . . . . . . . . . . . . . 87
things to note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
tow bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 88
towing not allowed . . . . . . . . . . . . . . . . . . . . . . . . . 88
with towing bracket . . . . . . . . . . . . . . . . . . . . . . . . 88
Towline anchorages . . . . . . . . . . . . . . . . . . . . . . 57, 84
Tow rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331, 334
Traffic Jam Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
295 malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
296
situations in which Traffic Jam Assist mustbe switched off . . . . . . . . . . . . . . . . . . . . . . . . . 296 Traffic sign detection system . . . . . . . . . . . . . . . . 107
indication on the display . . . . . . . . . . . . . . . . . . 107
limit
ed operation . . . . . . . . . . . . . . . . . . . . . . . . . . 108
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
speed warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 108
windscreen damage . . . . . . . . . . . . . . . . . . . . . . 109
Traffic signs indication on the display . . . . . . . . . . . . . . . . . . 107
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 329 adjusting the headlights . . . . . . . . . . . . . . . . . . 336
anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
anti-theft system . . . . . . . . . . . . . . . . . . . . . . . . . . 334
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
333
exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
hooking up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 333
loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 335
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 335
maximum trailer weight . . . . . . . . . . . . . . . . . . . 335
mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336, 383
parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318, 321
power socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
rear LED lights . . . . . . . . . . . . . . . . . . . . . . . . 331, 334
rear lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331, 334
retrofitting a towing bracket . . . . . . . . . . . . . . . 338
stabilisation of the towing vehicle and trail-er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 337
technical requirements . . . . . . . . . . . . . . . . . . . . 331
tow rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331, 334
trailer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
unlocking the electrical unlocking tow hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 332
vertical load on the coupling . . . . . . . . . 329, 335 Trailer mode
also see to wing bracket . . . . . . . . . . . . . . . . . . . 329
see Driving with a trailer . . . . . . . . . . . . . . . . . . . 329
Trailer weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Transporting children . . . . . . . . . . . . . . . . . . . . . . . . . 79
Transporting items fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
roof carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . 169
roof carrier system . . . . . . . . . . . . . . . . . . . . . . . . 169
Transporting objects loading the trailer . . . . . . . . . . . . . . . . . . . . . . . . . 335
net bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 166
retaining hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
roof carrier system . . . . . . . . . . . . . . . . . . . . . . . . 170
tailboard for long items . . . . . . . . . . . . . . . . . . . . 167
trailer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Trip odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Turn signal convenience function . . . . . . . . . . . . 137
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Tyre Mobility Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
85
inflating a tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
sealing a tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Tyre Mobility System see Anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . 84
Tyre monitoring system . . . . . . . . . . . . . . . . . . . . . . 361 tyre monitoring indicator . . . . . . . . . . . . . . . . . . 363
Tyre pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 358, 384
Tyre profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Tyre repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 84
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . 84 see also Anti-puncture kit . . . . . . . . . . . . . . . . . . 84
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 357 accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 358
changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 54
402