.... N
0 CJ '
_& WARNING
Temperature grades apply to tires that are properly inflated and not over or underinflat
ed .
Tire pressure monitoring
system
CD General notes
Each t ire, including the spare (if provided),
should be checked monthly when cold and inflat
ed to the inflation pressure recommended by the
veh icle manufac turer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inf lation pressure la
be l, you should determine the proper tire infla
tion pressure for those tires).
As an added safety feature, your veh icle has been
equipped with a tire pressure monitoring system
(TPMS) that illuminates a low tire press ure te ll
tale when one or more of your tires is significant l y under-inflated. Accordingly, when the low tire
pressure tellta le illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a s ignifi
cantly under-inflated tire causes the tire to over
heat and can lead to t ire failure. Unde r-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop
ping ability .
Please note that the TPMS is not a substitute for
proper tire maintenance, and i t is the driver's re
sponsib ility to ma inta in correct tire pressure,
even if under -inflation has not reached the level
to trigger illum inat ion of the TPMS low tire pres
sure telltale.
Your veh icle has also bee n eq uipp ed w ith a TPMS
mal function indicator to indicate when the sys
tem is not operating properly. The TPMS mal
function indicator is combined w ith the low tire
pressure tellta le. When the system detects a
malfunction, the telltale will flash for approxi
mately one minute and then remain cont inuously
illuminated . This sequence will continue upon
Wheels
subsequent vehicle start-ups as long as the mal
function exists .
When the malfunction indicator is illuminated ,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
i nsta llation of replacement or alternate tires or
whee ls on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS ma lfunction telltale after replac ing one or
more tires or wheels on your vehicle to ensure
that the replacement or a lternate tires and
whee ls allow the TPMS to continue to function
properly.
If the Tire Pressure Monitoring System
indicator appears
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system mo/function .
Fig. 197 Instrume nt cluste r: indicator light with message
Us ing the ABS sensors, the tir e pressure monitor
ing system compares the tire tread circumfer
ence and vibration characteristics of the individu
al tires. If the press ure changes in one or more
tires , this is indicated in the instrument cluster
display with an indicator light
ti] and a message.
If only one tire is affected, the location of that
tire will be indicated.
T he tire press ures must be stored in the Infotain
ment system again each time the pressures
change (switching between partial and full load
pressure) or after changing or replacing a tire on
your vehicle¢
page 250. The tire pressure moni
toring system only monitors the tire pressure you have stored. Refer to the tire pressure label for ..,.
249
-The spare tire is intended on ly for tempora
ry and short-term use. It shou ld be replaced
as soon as possible with the normal wheel
and t ire.
- After mounting the compact spare tire, the
tire pressure must be checked as soon as
poss ible. The t ire pressure of the compact
spare tire m ust be 4.2 bar; otherwise, you
risk having an accident.
- Do not drive faster than SO mph (80 km/h).
You risk hav ing an accident .
-Avoid full-throttle accelerat ion, heavy brak
ing, and fast cornering . You risk having an
acc ident.
- Never drive us ing more than one spare
wheel and tire . You risk having an acc ident.
- Normal summer or winter tires must not be
mounted on the compact spare wheel rim .
- For technical reasons, the use of tire chains
on the spare tire is not perm itted. If it is
necessary to drive with t ire chains, the spare
wheel m ust be mounted on the front axle i n
the even t of a flat in a rea r tire. The new ly
avail able front wheel m ust then be insta lled
in place of the rear wheel with the flat tire .
Installing the tire chain before mounting
the wheel and tire is recommended .
- Loose items in the passenger compartment
can cause ser ious personal injury during
hard braking or in an acc ident. Never store
the inflatable spare t ire or jack and too ls in
the passenger compartment.
Replacing wheels
Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a
wheel.
• After you experience a tire failure , pull the car
well away from moving t raff ic and try to reach
level ground before you stop¢ A-
• All passengers sho uld leave the car and move
to a safe location (fo r instance, be hind the
guardrail) ¢
A.
• Engage the parking b rake to prevent yo ur vehi
cle from roll ing unintentionally ¢
A-
Em ergenc y ass is tanc e
• Move selecto r lever t o po sit ion P ¢ A .
• If you are towing a trai ler, unhitch the trailer
from yo ur vehicle .
• Take the
jack and the spare tire out of the lug
gage compartment
¢page 251, ¢page 252.
A WARNING
You or your passengers could be injured while
changing a whee l if you do no t follow these
safety precaut ions:
- If you have a flat tire, move a safe distance
off the road. Turn off the eng ine, turn the
emergency f lashers on a nd use other wa rn
ing devices to alert other motorists.
- Make sure that passenge rs wait i n a safe
p la ce away from the vehicle and well away
fr om the road and t raff ic.
- To help preven t the veh icle from moving
suddenly and possib ly slipping off the ja ck,
always fu lly set the park ing brake and bloc k
the wheel diagonally opposite the wheel be ing changed. When one front whee l is lifted
off the ground, placing the Automatic
Transmission in P (Park) wi ll
not prevent the
veh icle from moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary, use a
sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com
partment
¢ page 131.
(!) Tips
Before changing the wheel, you must activate
the jacking mode, so that the automat ic con
tro ls for the Adaptive Air Suspension* do not
make it more difficult to lift the vehicle with
the jack ¢
page 255.
Changing a wheel
When you change a wheel , follow the sequence
described below step -by -step and in exactly that
order .
l. Activate the vehicle jack mode*¢ page 255. .,.
253