164Intelligent technology
W
Wh
he
ee
el
ls
sp
pi
in
n cco
on
nt
tr
ro
ol
l ((T
TC
CS
S)
)
In vehicles with front wheel traction, the TCS lowers the engine
power to stop the wheel spinning when you accelerate. This feature
works at any speed in combination with the ABS. If there is an ABS
breakdown, the TCS stops working.
Vehicles fitted with TCS are also fitted with an electronic differential
lock (EDL).
The EDL makes it much easier, or even possible, to pull away,
accelerate and climb steep gradiants in unfavourable conditions.
The EDL works fully automatically – the driver does not need to do
anything at all.
It uses the ABS sensors to monitor the speed of the driving wheels.
Up to a speed of about 80 km/h (50 mph), a difference in speed of
the drive wheels of approximately 100 rpm caused by a slippery
road surface on o on
ne
e ssi
id
de
e
is balanced out by slowing down the
wheel which is slipping and thereby applying more driving force to
the other drive wheel through the differential.
T Th
hi
is
s cco
on
nt
tr
ro
ol
l ppr
ro
oc
ce
ed
du
ur
re
e cca
an
n bbe
e dde
et
te
ec
ct
te
ed
d bby
y tth
he
e sso
ou
un
nd
d iit
t mma
ak
ke
es
s.
.
I In
n oor
rd
de
er
r tto
o oob
bt
ta
ai
in
n tth
he
e bbe
es
st
t ppo
os
ss
si
ib
bl
le
e eef
ff
fe
ec
ct
t ffr
ro
om
m tth
he
e EED
DL
L,
, aal
lw
wa
ay
ys
s uus
se
e
t th
he
e ccl
lu
ut
tc
ch
h aan
nd
d aac
cc
ce
el
le
er
ra
at
to
or
r ppe
ed
da
al
ls
s aac
cc
co
or
rd
di
in
ng
g tto
o tth
he
e rro
oa
ad
d
c co
on
nd
di
it
ti
io
on
ns
s.
.To ensure that the brake disc of the braked wheel does not
overheat, the EDL will automatically switch itself off if excessive
demands are placed on it. The vehicle remains operational and has
the same characteristics as a vehicle without EDL. For this reason,
the switching off of the EDL is not noticed.
As soon as the brakes have cooled off, the EDL will switch itself
back on again.
If the ABS warning lamp lights up there may be a fault present in
the EDL. Take the vehicle to a Technical Service Centre as soon as
possible!
The TCS connects automatically once the engine is started. If
necessary, it can be connected or disconnected by pressing shortly
the button located on the central console.
When the TCS is switched off a pilot light comes on.
You should normally always have the TCS on. Only in exceptional
circumstances when you want the wheels to spin should you
switch it off. For instance:
– When you are using snow chains.
– When driving in deep snow or on a soft surface.
– When the car is stuck, to “rock” it out, and
W Wh
he
en
n aac
cc
ce
el
le
er
ra
at
ti
in
ng
g oon
n aa ssl
li
ip
pp
pe
er
ry
y rro
oa
ad
d ssu
ur
rf
fa
ac
ce
e,
, ee.
.g
g.
. oon
n iic
ce
e oor
r ssn
no
ow
w,
, uus
se
e tth
he
e
a ac
cc
ce
el
le
er
ra
at
to
or
r ppe
ed
da
al
l cca
ar
re
ef
fu
ul
ll
ly
y.
. TTh
he
e wwh
he
ee
el
ls
s cca
an
n ssp
pi
in
n,
, eev
ve
en
n wwi
it
th
h EED
DL
L,
, aan
nd
d tth
hu
us
s
i im
mp
pa
ai
ir
r ddr
ri
iv
vi
in
ng
g sst
ta
ab
bi
il
li
it
ty
y.
.
W
WA
AR
RN
NI
IN
NG
G
T Th
he
e sst
ty
yl
le
e oof
f ddr
ri
iv
vi
in
ng
g mmu
us
st
t aal
lw
wa
ay
ys
s bbe
e aad
da
ap
pt
te
ed
d tto
o ssu
ui
it
t tth
he
e rro
oa
ad
d ssu
ur
rf
fa
ac
ce
e aan
nd
d
t tr
ra
af
ff
fi
ic
c cco
on
nd
di
it
ti
io
on
ns
s.
. TTh
he
e iin
nc
cr
re
ea
as
se
ed
d ssa
af
fe
et
ty
y oof
ff
fe
er
re
ed
d bby
y tth
he
e EED
DL
L ssh
ho
ou
ul
ld
d nno
ot
t
e en
nc
co
ou
ur
ra
ag
ge
e oon
ne
e tto
o tta
ak
ke
e uun
nn
ne
ec
ce
es
ss
sa
ar
ry
y rri
is
sk
ks
s.
.
W
WA
AR
RN
NI
IN
NG
G
