
This could cause damage
totheve hicle or
th e tyres. #
Neverfit snow chains on the front
wheels. #
Only fit snow chains on there ar wheels
in pairs. *
NO
TEDama getothe wheel trim from fit‐
te d snow chains If sn
ow ch ains are fitted tosteel wheels, the
wheel trims can be damaged. #
Remo vethe wheel trims of steel wheels
before fitting snow chains. R
Snow chains are on ly permissible for cer tain
wheel/tyre combinations. You can obtain
information about this from a Mercedes-Benz
Service Cent re.
R For saf etyre asons, on lyuse sn owchains that
ha ve been specifically appr ovedfo ryo ur
ve hicle byMercedes-Benz, or snow chains
with the same quality standard. R
If sn owchains are fitted, the maximum per‐
missible speed is 50 km/h.
R Vehicles with Parking Pilo t:Do not use
Pa rking Assist PARKTRONIC if sn ow chains
are fitted.
R Vehicles with AIR BODY CONT ROL:On ly
drive at raised vehicle le vel if snow chains
are fitted.
% You can permanently limit the maximum
ve hicle speed for driving with winter tyres
(→ page 202).
% You can deactivate ESP ®
to pull away
( → page 193). This all owsth e wheels tospin,
achieving an increased driving forc e. Ty
re pressure Note
s on tyre pressure &
WARNING Risk of accident due toinsuf‐
fi cient or excessive tyre pressure
Underinfla ted or overinfla ted tyres pose the
fo llowing risks:
R The tyres may bur st, especially as the
load and vehicle speed increase.
R The tyres may wearexc essively and/or
une venly, which may greatlyimpair tyre
traction.
R The driving characteristics, as well as
st eering and braking, may be greatly
impaired. #
Comply with there commended tyre
pressure and check the tyre pressure of
all tyres including the spare wheel regu‐
larly:
R at least once a month
R when the load changes 41 0
Wheels and tyres 

R
before embarking on a longer journey
R if operating conditions change, e.g. off-
ro ad driving #
Adjust the tyre pressure as necessar y.Driving wi
thtyre pressu rethat is too high or too
low can:
R Sho rten the service life of the tyres.
R Cause increased tyre damage.
R Adversely af fect handling characteristics and
th us driving saf ety, e.g. due toaquaplaning. &
WARNING Risk of accident from repea‐
te d tyre pressure drop
If th e tyre pressure drops repeatedl y,the
wheel, valve or tyre may be damaged.
Insuf ficient tyre pressure can cause the tyres
to bur st. #
Inspect the tyre for signs of fore ign
objects. #
Check whe ther the wheel or valve has a
leak. #
Ifyo u are unable torectify the damage,
conta ct aqualified specialist workshop. Information on
there commended tyre pressure
fo rth eve hicle's factor y-fitted tyres can be found
on the tyre pressure table on the inside of the
fuel filler flap (→ page411).
Use a sui table pressure gauge tocheck the tyre
pressure. The outer appearance of a tyre does
not permit any reliable conclusion about the tyre
pressure.
Ve hicles with a tyre pressure monitoring sys‐
te m: You can also check the tyre pressure using
th e on-board computer.
Only cor rect tyre pressures when the tyres are
cold. Conditions for cold tyres:
R The vehicle has been par ked with the tyres
out of direct sunlight for at least thre e hours.
R The vehicle has tr avelled less than 1.6 km.
A rise in the tyre temp erature of 10°C increases
th e tyre pressure byappr ox.10 kPa (0.1 ba r,1.
5 psi). Take this into account when checking
th e tyre pressure of warm tyres.
Note s on trailer operation
Alw ays inflate there ar axle tyres tothere com‐
mended tyre pressures on the tyre pressure
ta ble for increased load. Ty
re pressure table The tyre pressure
table is on the inside of the
fuel filler flap. Wheels and tyres
411 

The tyre pressure
table sho ws there commended
tyre pressure for all tyres appro vedfo rth is vehi‐
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions,
i.e. loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pres‐
sure, the tyre pressure information following is
only valid forth ose tyre sizes. If
th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures.
These tyre pressures may impr oveyour vehicle's
ri de comfort. Fuel consum ption may then
increase slightl y.
The load conditions "partially laden" and "fully
laden" are defined in theta ble for dif fere nt num‐
be rs of passengers and amounts of luggage. The
actual number of seats may dif fer from this.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page410) Ty
re pressure moni toring sy stem Fu
nction of the ty repressure moni toring sys‐
tem
The sy stem checks the tyre pressure of the tyres
fi tted totheve hicle bymeans of a tyre pressu re
sensor.
New tyre pressure sensors, e.g. in winter tyres,
are automatically taught-in thefirs t time they are
driven. The tyre pressure appears in
the multifunction
display (→ page 257).
If th ere is a subs tantial pressure loss or if the
tyre temp erature is excessive, a warning will be
given:
R Via display messages (→ page 481).
R Viath eh warning lamp in the instrument
clus ter (→ page 516).
It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation. Set the tyre
pressure for cold tyres using a tyre pressu re
ga uge. Notethat the cor rect tyre pressure for
th e cur rent operating situation mu stfirs t be
ta ught-in tothe tyre pressure monitoring sys‐
te m.
In most cases, the tyre pressure monitoring sys‐
te m will auto matically update the new refere nce
va lues af teryo u ha vechanged the tyre pressure.
Yo u can, ho wever,also update there fere nce val‐
ues byrestarting the tyre pressure monitoring
sy stem manually (→ page413). 412
Wheels and tyres 

Sy
stem limitations
The tyre pressure monitoring sy stem does not
issue a warning:
R Ifth e tyre pressure is set incor rectl y.
R Ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tyre.
R Ifth ere is a malfunction caused byano ther
ra dio signal source.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page410)
Checking the ty repressure with the tyre
pressure moni toring sy stem
Requ irements:
R The ignition is switched on.
On-board computer: , Service .
Tyre pressure
One of thefo llowing displa ysappears:
R Cur rent tyre pressure of ea chwheel: R
Tyre pressures will be displayed after a few
minutes of driving
R Tyre pressure monitor active: thete ach-in
process of the sy stem is not yet compl ete.
The tyre pressures are already being moni‐
to re d. #
Compare the tyre pressure with there com‐
mended tyre pressure forth e cur rent operat‐
ing condition (→ page 411). Obse rvethe
no tes on tyre temp erature (→ page410).
% The values displa yed in the multifunction dis‐
play may deviate from those of the tyre pres‐
sure gauge as they referto sea le vel.At high
altitudes, the tyre pressure values indicated by
pressure gauges are higher than those
shown bythe on-board computer. In this
case, do not reduce the tyre pressure.
Make sure you also obse rveth efo llowing related
subjects:
R Notes on tyre pressure (→ page410)
Re starting the ty repressure moni toring sys‐
tem
Re quirements:
R The recommended tyre pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page410).
Re start the tyre pressure monitoring sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. Wheels and tyres
413 

On-board computer:
, Service .
Tyre pressure #
Swipe down wards on theTo uch Control on
th e left-hand side of thesteering wheel.
The Use current pressures as new reference
values message is shown in the multifunction
displa y. #
Press atoconfirm there start.
The Tyre press. monitor restarted message is
shown in the multifunction displa y.
Cur rent wa rning messages are dele ted and
th eh yellow warning lamp goes out.
Af teryo u ha vedriven for a few minutes, the
sy stem checks whe ther the cur rent tyre pres‐
su res are within the specified range. The cur‐
re nt tyre pressures are then accep ted as ref‐
erence values and monitored.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page410) Ra
dio-type appr oval of the ty repressure
moni toring sy stem
Ra dio equipment appr oval numbers Countr
yRadio equipment appr oval
number
Abu Dhabi TRA REGISTERED NO: ER3 7156/15.
DEALER NO: DA00470 74/10
Argentina AFTIC:H1 4788
Duba iT RA
REGI STERED NO: ER3 7156/15.
DEALER NO: DA00470 74/10
European
Union Hereb
y,Schrader Electronics
Ltd., declares that this TPMS is in
compliance with the essential
re qu irements and other pr ovi‐
sions of directive 1999/5/EC.
The declaration of conformity
may be consul ted at emcteam@
schrader.co.uk Countr
yRadio equipment appr oval
number
Jordan Kingdom of Jordon Type appr oval
fo rTy re Pressure sensor.
Manufacturer: Schrader Elect ron‐
ics Ltd. Model: AG5SP4
Ty pe Appr oval Numb er:
TRC/LPD/20 15/21
Kingdom of Jo rdon Type appr oval
fo rTy re Pressure sensor.
Manufacturer: Schrader Elect ron‐
ics Ltd. Model: MFR
Ty pe Appr oval Numb er:
TRC/LPD/20 15/223
Mal aysia RCDD/04A/0 615/S(15-2095)
Morocco AGREE PAR L'ANRT MA ROC
Nume rod'agrement :MR 10216
ANRT 20 15
Date d'agrement :18/3/20 15414
Wheels and tyres 

Count
ryRadio equipment appr oval
number
Mexico IFT:RCPSC AG15-0627
IFT:RL VSCMF 15-0959
Moldo va Philip‐
pines
NTC
Ty
pe Appr oved.
No:ESD-1 5105 76CNTC
Serbia Sin
gapor eC omplies with IDA Standards DA
10 5282 Countr
yRadio equipment appr oval
number
South
Africa TA
-20 15/0 72 App roved
TA -20 15/117 App roved Count
ryRadio equipment appr oval
number
Ukraine Schrader Electronics
цім
стверджує, що обладнання
Радіопередав ачмоделі AG5SP4
системи контролю тиск ув
шині ав томобіля відповідає
вимогам Технічного
регламент урадіообладнання і
телек омунікаційног окінцевого
(термінального )обладнання
(Постанов аКМУ № 679від 24
червня 2009р.)Декларація
відповідн ості знах одиться на
са йті Schrader Electronics та
надається за запит омна
елек трону адре суemc‐
te [email protected]
Schrader Elect ronics цім
стверджує, що обладнання Wheels and tyres
415 

Count
ryRadio equipment appr oval
number
Радіопередав ачмоделі MFR
системи контролю тиск ув
шині ав томобіля відповідає
вимогам Технічного
регламент урадіообладнання і
телек омунікаційног окінцевого
(термінального )обладнання
(Постанов аКМУ № 679від 24
червня 2009р.)Декларація
відповідн ості знах одиться на
са йті Schrader Electronics та
надається за запит омна
елек трону адре суemc‐
te [email protected]
Uni ted
Arab Emi‐
ra tes TRA
REGISTERED NO :ER3
7156/15.
DEALER NO:DA00470 74/10 Brazil
Es
te equipamento opera em caráter secundário,
is to é, não tem direito à pr oteção contra inter fer‐
ência prejudicial, mesmo de es tações do mesmo
tipo, e não pode causar inter ferê ncia a si stemas
operando em caráter primário. Vi
etnam Ty
re pressure loss warning sy stem Fu
nction of the ty repressure loss warning
sy stem
The tyre pressure loss warning sy stem warnsthe
driver bymeans of display messa ges when there
is a se vere tyre pressu reloss.
Af ter a change in tyre pressure, a wheel rotation
or a wheel change, the tyre pressure loss warn‐
ing sy stem has tobe taught-in again bybeing
re star ted (→ page 417). 416
Wheels and tyres 

The tyre pressure loss
warning sy stem does not
re place the need toregularly check the tyre
pressures.
Sy stem limitations
The tyre pressure loss warning sy stem does not
issue a warning:
R Ifth e tyre pressure is set incor rectl y.
R Ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tyre.
R Ifth e pressure loss in se veral tyres decrea‐
ses at the same rate.
The tyre pressure loss warning sy stem has a
limited or dela yed function:
R When thero ad sur face is poo r,e.g. snow or
gr ave l.
R When driving with snow chains.
R When driving in a very sporty driving style
with high cornering speeds or sudden accel‐
eration.
R When towing a very heavy or large trailer.
R When driving with a high load. Be sure
toalso obse rveth efo llowing fur ther
re lated subjects:
R Display messages about the tyres
(→ page 481)
R Notes on tyre pressure (→ page410)
Re starting the ty repressure loss warning
sy stem
Requ irements:
R The recommended tyre pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page410).
On -boa rdcompu ter:
, Service .
Tyre pressure
The Run Flat Indicator active Restart with OK
messa geis shown in the multifunction displa y.
Re start the tyre pressure loss warning sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. #
Press atobegin the new start.
The Tyre pressure now OK? message is
shown in the multifunction displa y. #
Select Yes. #
Press atoconfirm there start.
The Run Flat Indicator restarted message is
shown in the multifunction displa y.
Af teryo u ha vedriven for a few minutes, the
tyre pressu reloss warning sy stem monitors
th e set tyre pressures of all the tyres.
Make sure you also obse rveth efo llowing related
subjects:
R Notes on tyre pressure (→ page410) Wheel
change Note
s on selecting, fitting and replacing
tyres Yo
u can ask for information rega rding permit ted
wheel/tyre combinations at a Mercedes-Benz
Service Cent re. Wheels and tyres
417