#
Toengage/disen gage:press the upper sec‐
tion of switch 1.
The indicator lamp in switch 1flashes while
th e all-wheel drive is engaged or disengaged.
The 00E5 and003D warning lamps light up in
th e instrument displa y.ESP ®
and ASR are
deacti vatedfo rth e duration of the shift oper‐
ation. If the shift operation is successful, the
00E5 and003D warning lamps in the instru‐
ment display go out and ESP ®
and ASR are
re activated.
As long as the indicator lamp in switch 1is
fl ashing, you can cancel the shift operation by
pressing switch 1again. If the shift operation
fa ils, the indicator lamp in switch 1brief ly
fl ashes thre e times. One of the shift conditions
wa s not met.
If th e indicator lamp in switch 1lights up, all-
wheel drive is engaged. A releva nt messa ge
appears in the display of the on-board computer.
% If
th eLO W RANGE gear reduction is engaged,
th e all-wheel drive cann otbe disengaged. Fu
nction of theLO W RANGE gear reduction The
LOW RANGE gear reduction enables very
slow driving in there spective gears. If you engage
LO W RANGE, the engine's per form ance charac‐
te rist ics and the automatic transmission's shift‐
ing characteristics are adjus ted according ly. The
transmission ratio from the engine tothe wheels
is around 40% lo werth an in thero ad position.
The drive torque is in creased cor respondingly.
Conditions for en gaging/disengaging
The following shifting conditions must be met in
order toengage or disengage LOW RANGE:
R All-wheel drive is engaged (/ page125).
R The engi ne isrunning.
R The vehicle is stationar y.
R You depress the brake pedal.
R Vehicles with automatic transmission: the
selector le ver is in position 005Dor005C. Engaging and disen
gaging LOWrange 1
Enga ging and disengaging LOWrange
% On
vehicles with DSR (Downhill Speed Regu‐
lation), switch 1isreplaced with the switch
fo r DSR. #
Toengage and disen gage:press the upper
section of switch 1.
The 002E indicator lamp flashes in the instru‐
ment display forth e duration of the shift
operation.
R When the shift operation take s place and
LO W RANGE is engaged, the002E indica‐
to r lamp lights up.
R When the shift operation take s place and
LO W RANGE is disengaged, the002E indi‐
cator lamp goes out.
As long as the indicator lamp 002Eisflashing,
yo u can cancel the shift operation bypressing
button 1again. If the shift operation fails, the
indicator lamp 002Ebrieflyflashes thre e times.
One of the shift conditions was not met. DSR (Downhill Speed
Regulation) Note
s on DSR If
yo ufa ilto adapt your driving style or you are
inat tentive, DSR can nei ther reduce therisk of
accident nor override the la wsof ph ysics. DSR
cannot take road, weather and traf fic conditions
into account. DSR is only an aid. You are respon‐
sible for a safe dis tancetotheve hicle in front, for
ve hicle speed and for braking in good time.
DSR supports you when driving downhill. DSR
main tains a set speed foryo u on downhill gradi‐
ents byapplying the brakes as required. Main‐ 12 6
Driving and pa rking
Fu
nctions of ASR (Acceleration Skid Control) ASR can neither
reduce therisk of an accident
nor override the la wsof ph ysics if the driver does
not pay attention when pulling away or accelerat‐
ing. ASR is only an aid. Alw ays adapt your driving
st yle to suit the pr evailing road and weather con‐
ditions.
If yo u activate or deactivate the all-wheel drive in
a ve hicle with this option, ASR will be deactivated
fo rth e duration of the activation/deactivation
process.
Ve hicles without steering wheel but tons: if
ASR is malfunctioning, the00E5 indicator lamp
lights up while the engine is running and the
engine output may be reduced (/ page 26).
ASR impr oves traction, i.e. the transfer of po wer
from the tires tothero ad sur face, for a sus tained
period and thereb y,also impr ovesth e driving sta‐
bility of theve hicle. If the drive wheels start to
spin, ASR brakes individual drive wheels and lim‐
its the engine torque. ASRthus significantly
assists you when pulling away and accelerating,
especially on wet or slippe ryroads.
If traction on thero ad sur face is not suf ficient,
eve n ASR will not allow youto pull away without
dif ficulty. The type of tires and totalwe ight of the
ve hicle as well as the gradient of thero ad also
play a crucial role.
If ASR inter venes, the00E5 warning lamp in the
Instrument Display flashes. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ry
out vehicle stabilization. In addition, other
driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified spe‐
cialist workshop. &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ryout
ve hicle stabilization. #
ESP ®
should only be deactivated in the
fo llowing situations. If
th e sur face requ ires, temp orarily deactivate
ESP ®
when pulling away ( / page 148).
Do not operate theve hicle on a roller dynamome‐
te r (e.g. for a per form ance test). If you ha veto
operate theve hicle on a roller dynamom eter, con‐
sult a qualified specialist workshop beforehand.
If yo u activate or deactivate the all-wheel drive in
a ve hicle with this option, ESP ®
will be deactiva‐
te dfo rth e duration of the activation/deactiva‐
tion process.
If ESP ®
is malfunctioning or deactivated, the
00E5 warning lamp lights up while the engine is
ru nning and the engine output may be reduced
(/ page 26).
% Only use wheels with
there commended tire
sizes. Only then will ESP ®
function properly.
ESP ®
can, within ph ysical limits, monitor and
impr ovedriving stability and traction in thefo l‐
lowing situations:
R When pulling away on wet or slippe ryroad
sur faces
R When braking
R Ifyo u are driving fasterthan 49.7 mph
(80 km/h) in stro ng crosswinds
If th eve hicle is deviating from the direction
desired bythe driver, ESP ®
can stabilize theve hi‐
cle byper form ing thefo llowing actions:
R One or more wheels are braked
R The drive sy stem per form ance is adap ted
depending on the situation
If ESP ®
is deactivated 00BB,the00E5 warning
lamp lights up con stantly in the Instrument Dis‐
play:
R Vehicle stabilization may be dela yed
R Crosswind Assist is still active
R The drive wheels may start tospin
R ASR traction control is no longer active
If ESP ®
is deactivated, ESP ®
will still support you
when braking.
If th e00E5 warning lamp in the Instrument Dis‐
play flashes, one or more wheels ha vereached
th eir tire traction limit:
R Adapt your driving style to suit the pr evailing
ro ad and weather conditions
R Do not deactivate ESP ®
under any circum‐
st ances Driving and parking
147
1
Wheel bolt for alloy wheel
2 Wheel bolt forst eel wheel #
Clean the wheel and wheel hub contact sur fa‐
ces. #
Vehicles with Super Single tires: first
ins tallth e adap terfo rth e nar row spare wheel
on the wheel hub. #
Slide the wheel which is tobe re-ins talled
onto the wheel hub or the adap terfo rthe
spare wheel and push it on.
Ve hicles with light alloy wheels #
Use the suitable short wheel bolts forthe
spare steel wheel found in theve hicle tool kit. #
Screw inthe wheel bolts until they are finger-
tight.
Wheels with wheel nuts #
Front wheels with wheel nut co ver:press the
wheel nut co ver onto the wheel nuts. #
Screw inthre e wheel nuts overth efixing
discs of the wheel nut co ver. #
Turn the wheel so that the wheel bolts are in
th e middle of the holes. #
Screw inthere maining wheel nuts. #
Slightly tighten all the wheel nuts. Lo
weri ngtheve hicle af ter a wheel change &
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. #
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist
wo rkshop and ha vethe tightening tor‐
qu ech ecked immediately. Re
quirements:
R The new wheel has been ins talled
(/ page 330).
Obser vethe no tes on raising theve hicle
(/ page 328).
Ve hicles with rear wheel drive
Only use the middle rod and the pump le verrod
with the largest diame terfo rth e jack as a lug
wrench extension. Only inse rtthe middle rod on
th e lug wrench, and alw ays as far as it will go.
Otherwise, thero ds could bend and deform so
much that they can no longer be used as pu mp
le ve rs forth e jac k.
Ve hicles with Super Single tires: ifyo u mount
th e spare wheel tothere ar axle, do not exceed
th e maximum speed of 34 mph (55 km/h) and
th e maximum dis tance of 62 miles (100 km). Oth‐
erwise, the transmission could be damaged due
to the dif fere nt rotational speeds of the wheels. #
Using the pump le ver,slowly turn the drain
scr ew onthe jack appr oximately one revo lu‐
tion and carefully lo werth eve hicle. #
Place the jack toone side. #
Pull thero d with the smallest diame ter off the
pump le ver.
The shor tened pu mpleve r ser ves as a lug
wrench extension. #
Starting with the middle rod, slide the lug
wrench extension as far as it will go onto the
lug wrench. Wheels and tires
331
#
Tighten the wheel bolts or nuts evenly in the
sequence indicated (1 to6 ).
Specified tightening torque:
R Steel wheel bolts: 177 lb-ft (240 Nm)
R Wheel nuts: 133 lb-f t(180 Nm)
R Alloy wheel bolts: 133 lb-f t(180 Nm) #
Push the pis ton on thehy draulic jack in again
and close the pressure release scr ew. #
Vehicles with all-wheel drive: turnthe jack
spindle clockwise as far as it will go.
% Yo
u can now ins tallth e hub caps on steel
wheels with wheel bolts. The ins tallation pro‐
cedure depends on whe ther the hub cap acts
as a trim that co vers the whole wheel, or just
co vers the center. #
Wheel with hub cap: positionthe opening
fo rth e tire valve in the hub cap overth e tire
va lve. #
Push the edge of the hub cap onto the wheel
ri m with bo thhands until it engages into
place. Make sure the hub cap retaining
cat ches engage on thesteel wheel. #
Wheel with central hub cap: positionthe
re taining lugs of the cent ral hub cap overthe
wheel bolts. #
Hitthe middle of the hub cap toengage it on
th e wheel. #
Secure thefa ulty wheel in the spare wheel
brac ket. #
Vehicles with Super Single tires: transport
th efa ulty rear wheel on the load area. The
re ar wheel is too lar geforth e spare wheel
brac ket. #
Check the tire pressure of the newly ins talled
wheel and adjust it if necessar y. #
Retighten the wheel bolts or wheel nuts tothe
specified tightening torque af terth eve hicle
has been driven 31miles (50 km). #
When using a wheel or spare wheel with a
new or newly painted wheel rim, ha vethe
wheel bolts or nuts retightened af ter appro x‐
ima tely 620 miles (1,000 km) to3,10 0 miles
(5,000 km).
% Ve
hicles with the tire pressure monitor
sy stem: all ins talled wheels must be equip‐
ped with functioning sensors.
Make sure toobser vethefo llowing fur ther rela‐
te d subject:
R Notes on tire pressure (/ page310) Spare wheel
Note
s onthe emer gency spare wheel and
spare wheel Spare wheel:
wheel and tire dimensions as well
as the type of tire cor respond totheot her ins tal‐
led wheels.
Emer gency spare wheel: wheel and/or tire
dimensions as well as the type of tire are dif fer‐
ent from the wheel tobe replaced. A label with a
speed limit can be found on the emer gency spa re
wheel.
An ins talled emer gency spa rewheel or spare
wheel changes the driving characteristics and
bears risks. &
WARNING Risk of accident caused by
incor rect wheel and tire dimensions
When the emer gency spa rewheel or the
spare wheel is ins talled, driving characteris‐
tics may be se verely affected.
The reis an inc reased risk of an accident.
To prev ent hazardous situations: #
Once the spare wheel or the emer gency
spa rewheel has been ins talled, check
th e tire pressure and adjust if neces‐
sar y. #
The emer gency spa rewheel may only
be used temp orarily and must be
re placed with a standard wheel as soon
as possible. #
Never ins tall more than one emer gency
spa rewheel. #
When operating your vehicle with the
emer gency spa rewheel ins talled, adapt 332
Wheels and tires