2017 MERCEDES-BENZ GLS-Class SUV media center

ASSYST PLUS
Service message
The ASSYSTPLU Sservic einterval display
inform syou of th enext servic edue date.
Information on th etyp eof servic eand servic e
intervals (see th eseparat eMaintenance Book -
let).
You can obtain further information from an
authorize dMercedes-Benz Cente ror at
http://www.mbusa.co m(US Aonly).
iThe ASSYS TPLU Sservic einterval display
does no tsho wany information on th eengin e
oil level. Observ eth enote son th eengin eoil
level (
Ypage 320).
The multifunction display shows aservic emes -
sage for several seconds, e.g. :
RService Ain .. Day s
RService ADue
RServic e AOverdu eby .. Day s
Dependingon th eoperating condition sof th e
vehicle, th eremaining time or distanc euntil th e
next servic edue dat eis displayed.
The lette rA
or B,possibl yin connection wit h a
number or another letter, shows th etyp eof ser -
vice. A
stand sfor aminor servic eand Bfora
major service.
You can obtain further information from an
authorize dMercedes-Benz Center.
The ASSYS TPLU Sservic einterval display does
no ttak eint oaccoun tany periods of time during
whic hth ebattery is disconnected.
Maintainin gth etime-dependen tservic esched-
ule:
XNot edown th eservic edue dat edisplayed in
th emultifunction display before disconnect -
ing th ebattery.
or
XAfte rreconnecting th ebattery, subtrac tth e
battery disconnection periods from th eser -
vic edat eshown on th edisplay.
Hiding a service message
XPress th e% ora buttonon th esteering
wheel.
Displaying service messages
XSwitc hon th eignition .
XPress th e= or; buttonon th esteering
whee lto select th eServ.menu.
XPress th e9 or: buttonto select th e
ASSYSTPLU Ssubmen uand confirm by press-
ing th ea button.
The servic edue dat eappear sin th emulti-
function display.
Infor mation about Service
Resetting the ASSYST PLUS service
interval display
!If th eASSYS TPLU Sservic einterval display
has been inadvertentl yreset ,this setting can
be correcte dat aqualified specialist work-
shop.
Hav eservic ewor kcarrie dout as described in
th eMaintenance Booklet .This may otherwise
lead to increased wear and damag eto th e
major assemblies or th evehicle.
A qualified specialist workshop ,e.g. an author-
ized Mercedes-Benz Center, will reset th e
ASSYS TPLU Sservic einterval display after th e
servic ewor khas been carrie dout .You can also
obtain further information on maintenance
work, for example.
Special service requirements
The specifie dmaintenance interval takes only
th enormal operation of th evehicl eint o
account. Under arduous operating condition sor
increased load on th evehicle, maintenance
wor kmus tbe carrie dout mor efrequently, for
example:
Rregular cit ydrivin gwit hfrequen tintermediat e
stops
Rif th evehicl eis primarily used to travel short
distances
Ruse in mountainous terrain or on poor road
surfaces
Rif th eengin eis often lef tidlin gfor lon gperiods
Under these or similar conditions, have, for
example, th eair filter, engin eoil and oil filter
replace dor changed mor efrequently. Under
arduous operating conditions, th etires mus tbe
checke dmor eoften .Further information can be
ASSYST PLUS323
Maintenance and care
Z

The vehicle will then use very little energy, thus
conserving battery power.
If the power supply has been interrupted, e.g. ifyou reconnect the battery, you will have to:
Rset the clock; see the Digital Operator's Man-
ual
On vehicles with a multimedia system and
navigation system, the clock is set automati-
cally.
Rreset the function for folding the exterior mir-
rors in/out automatically, by folding the mir-
rors out once (
Ypage 108).
Charging the 12 V battery
GWARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
GWARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
!Only use battery chargers with a maximum
charging voltage of 14.8 V.
!Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (
Ypage 338).
XOpen the hood.
XConnect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure (
Ypage 338).
Keep away from fire and open flames. Do not
lean over a battery. Never charge the battery if it
is still installed in the vehicle, unless you use a
battery charger which has been tested and
approved by Mercedes-Benz. A battery charger
unit specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the
charging of the battery in its installed position.
Contact an authorized Mercedes-Benz Center
for further information and availability. Read the
battery charger's operating instructions before
charging the battery.
If, at low temperatures, the indicator lamps/
warning lamps in the instrument cluster do not
light up, it is highly likely that the discharged
battery has frozen. In this case you may neither
jump-start the vehicle nor charge the battery.
The service life of a thawed-out battery may be
shorter. The starting characteristics can be
impaired, particularly at low temperatures. Have
the thawed-out battery checked at a qualified
specialist workshop.
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point in the engine com-
partment, consisting of a positive terminal and a ground point.
GWARNING
Battery acid is caustic. There is a risk of injury.
338Jump-starting
Breakdown assistance

Important safety notes
GWARNING
If wheels and tires of th ewrong siz eare used,
th ewhee lbrakes or suspension component s
may be damaged. Ther eis aris kof an acci-
dent.
Always replace wheels and tires wit hthose
that fulfill th especification sof th eoriginal
part .
When replacing wheels, mak esur eto use th e
correct:
Rdesignation
Rmodel
When replacing tires ,mak esur eto use th e
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNIN G
A flat tire severely impairs th edriving ,steer -
ing and braking characteristics of th evehicle.
Ther eis aris kof accident.
Tires without run-flat characteristics :
Rdo notdriv ewit h a flat tire.
Rimmediately replace th eflat tire wit hyour
emergenc yspar ewhee lor spar ewheel, or
consult aqualified specialist workshop.
Tires wit hrun-flat characteristics :
Rpay attention to theinformation and warn -
ing notice son MOExtended tires (tire swit h
run-flat characteristics).
Accessories that are no tapprove dfor your vehi-
cle by Mercedes-Ben zor are no tbein gused cor-
rectl ycan impair th eoperating safety.
Before purchasing and usin gnon-approve d
accessories, visit aqualified specialist work-
sho pand inquire about :
Rsuitability
Rlegal stipulation s
Rfactory recommendation sFurther information regarding wheels and tires
can be foun
dunder "Wheel/tire combinations"
(
Ypage 371).
You can ask for information regarding permitte d
wheel-tire combination sat an authorize d
Mercedes-Ben zCenter.
Tir epressur einformation can be found:
Ron th eTir eand Loading Information placard
on th eB-pillar on th edriver' sside
Rin th etire pressur etable in th efuel filler flap
Rin th e"Tir epressure" section
Operation
Information on driving
Chec kth etire pressur ewhen th evehicl eis
heavily laden and adjust prio rto atrip.
While driving ,pay attention to vibrations, noises
and unusual handlin gcharacteristics ,e.g. pull-
ing to on eside .This may indicat ethat th e
wheels or tires are damaged. If you suspec tthat
a tire is defective, reduce your spee dimmedi-
ately. Stop th evehicl eas soo nas possible to
chec kth ewheels and tires for damage. Hidden
tire damag ecould also be causing th eunusual
handlin gcharacteristics .If you fin dno sign sof
damage, hav eth etires and wheels checke dat a
qualified specialist workshop.
When parking your vehicle, mak esur ethat th e
tires do no tget deformed by th ecur bor other
obstacles. If it is necessar yto driv eove rcurbs,
spee dhump sor similar elevations, tr yto do so
slowly and at an obtuse angle. Otherwise, th e
tires ,particularly th esidewalls, may be dam-
aged.
Regular checking of wheels and tires
GWARNIN G
Damaged tires can caus etire inflation pres-
sur eloss .As aresult ,you could lose control of
your vehicle. Ther eis aris kof accident.
Chec kth etires regularly for sign sof damag e
and replace any damaged tires immediately.
346Operation
Wheels and tires