%
When ESP ®
is deactivated, you are still assis‐
te dby ESP ®
when braking.
ESP ®
is inter vening if the ESP ®
÷ warning
lamp flashes in the instrument clus ter:
R Do not deacti vate ESP ®
.
R Only depress the accelera tor pedal as far as
is necessar y.
R Adapt your driving style to suit the cur rent
ro ad and weather conditions.
Deactivate ESP ®
in thefo llowing situations to
impr ovetraction:
R When using snow chains. R
In deep sn ow.
R On sand or gr avel.
% Spinning the wheels results in a cutting
action which pr ovides better grip.
If th e ESP ®
÷ warning lamp lights up continu‐
ousl y,ESP ®
is not available due toa malfunction.
Obse rveth efo llowing information:
R Warning and indicator lamps (→ page 438)
R Display messages (→ page 381)
ETS/4ETS (Electronic Traction Sy stem)
ETS/4E TStraction control is pa rtof ESP ®
and
makes it possible topull away and accelerate on
a slippe rycar riag ew ay. ETS/4ETS can impr
ovetheve hicle's traction by
inter vening in thefo llowing ways:
R The drive wheels are braked individually if
they spin.
R More drive torque is transferred tothe wheel
or wheels with traction.
Influence of drive prog rams on ESP ®
The drive programs enable ESP ®
to adapt todif‐
fe re nt we ather and road conditions as well as
th e driver's prefer red driving style. You can
select the drive prog rams using theDY NA MIC
SELECT switch (→ page170). Driving and pa
rking 19 3
&
WARNING Risk of accident due toincor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed torque. #
Have the tightening torque checked
immediately at a qualified specialist
wo rkshop af terch anging a wheel. #
Check the tyre pressure of the newly moun‐
te d wheel and adjust according ly.#
Vehicles with tyre pressure loss warning
sy stem: restart the tyre pressure loss warn‐
ing sy stem (→ page 352).
Exception: the new wheel is an emer gency
spa rewheel. #
Vehicles with a tyre pressure monitoring
sy stem: restart the tyre pressure monitoring
sy stem (→ page 348).
Exception: the new wheel is an emer gency
spa rewheel. Make sure
toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (→ page 345) Emer
gency spare wheel Note
s onthe emer gency spare wheel &
WARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of
th e emer gency spa rewheel or spare wheel
and the wheel tobe replaced may dif fer.
Mounting an emer gency spa rewheel/spare
wheel may se verely impair the driving char‐
acteristics.
To preve nt hazardous situations: #
Adapt your driving style according lyand
drive carefull y. #
Neverfit more than one emer gency
spa rewheel or spare wheel that dif fers
in size. #
Only use an emer gency spa rewheel or
spare wheel of a dif fere nt size brie fly. #
Do not switch off ESP ®
. #
>Ha vethe emer gency spa rewheel or
spare wheel of a dif fere nt size replaced
at the nearest qualified specialist work‐
shop. The new wheel must ha vethe
cor rect dimensions. Check
the tyre pressure of the emer gency spa re
wheel fitted. Co rrect the pressure as necessar y.
The maximum permissible speed with an emer‐
ge ncy spa rewheel fitted is 80 km/h.
Do not fit th e emer gency spa rewheel with sn ow
ch ains.
Re place the emer gency spa rewheel af ter six
ye ars at the latest, rega rdless of wear.
% Ve
hicles with a tyre pressure loss warn‐
ing sy stem: If an emer gency spa rewheel is
fi tted the tyre pressure loss warning sy stem
cann otfunction reliabl y.Only restart the sys‐
te m again when the emer gency spa rewheel
has been replaced with a new wheel. 362
Wheels and tyres
