2021 MERCEDES-BENZ GLS SUV cooling

Tr
aile rhitc h Gene
ralno teson thetrailer hitch Modif
ications totheengine cooling system may
be neces sary,dependin gon theve hicle model.
The retrof itti ng ofatrai le rhi tc his only perm issi‐
ble ifato wing capac ityisspec ified inyour vehi‐
cle documents.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop. To
wing capacit y The
tongu ewe ight isno tinc luded intheto wing
capac ity. Mod
el Towing capacit y,
br ak ed
All models 7716 .2 lbs(3 500 kg) Mer
cede s‑Maybac hT owing capa city,
br ak ed
All models 7716 .2 lbs(3 500 kg) Maximum
tongue weight andload capacity *
NO
TEDama gecau sed bythetrailer
comin gloose If
th eto ngu ewe ight used istoolow, the
tr ai le rma ycome loose . #
Theto ngu ewe ight mustno tbe belo w
11 0.2 lb(50 kg). #
Use ato ngu ewe ight that isas clo seas
poss ibletothemaximum permissible
to ngu ewe ight . *
NO
TEDama gecau sed bythebicy cle
ra ck comi ngloose Whe
nus ing abi cy cle rack ,bo th themaximal
to ngu ewe ight andthemaximal loadcapacity
should beobser ved. #
Donotexc eed theper missible load
capacity . Obser
vetheadditional noteson load capacity .To
ngue weight Model
Maximumtongue
we ight
All models 617.3 lbs (280 kg) Mer
cede s‑Maybac hM aximum tongue
we ight
All models 617.3 lbs (280 kg) Missing
values werenotye tav ailable atthetime
of going topress.
Load capacit y Model
Maximumload
All models Mer
cedes‑Ma ybachM aximumload
All mode ls Pe
rm issible rear axle load (traile roper ation ) Miss
ingvalues werenotav ailable atthetime of
going topress. 406
Tech nica lda ta

Engine
Displa
ymes sages
Possible causes/conseq uencesand0050 0050
Solutions
To switch engine off,press
and hold Start/S topbut-
ton foratleast 3secon ds
or press 3times. *Y
ouhave pressed thest ar t/ stop butt onwhile theve hicle isin mo tion. #
Information aboutswitchingoffth eengine whiledriving (/page16 9).
00BD
Che ckCoo lant Level See
Opera tor'sManu al *T
hecoolant leve lis toolow.
* NO
TEEngi nedama gedue toinsuf ficie ntcool ant #
Avoid long journeys wit hins ufficie ntcool ant. #
Addcoolant (/page326 ). #
Have theengine cooling system checkedat aqu alif ied spec ialistwo rkshop.
ÿ
Coola ntToo HotStop Vehi-
cle Turn Engine Off *T
hecoolant istooho t. #
Pull overand stop theve hicle safely and switc hof fth eengine, paying attent ion toroad and traffic condi tions. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. Disp
lay mess ages and warning/ indic ator lam ps 423

Re
ar air vents <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .............165
Re ar oper atingunit .............................. 160
Re frig er ant .................. ........................ 400
Re frig er ant filling capac ity.............. .....4 01
Re mo ving condensatio nfrom the
windo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 162
Re sidua lheat ......... .............................. 162
Re sidua lheat (rear oper ating unit) ...... 163
Se tting (MBU Xmul time diasy stem) ..... 160
Se tting theair distribution ...................1 59
Se tting theair flow <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 159
Se tting thefragr ance system ............... 163
Se tting thete mp eratur e......................1 59
Switc hingthere ar wind owheat er
on/of f.................................................1 59
Ve ntil ating theve hicle (convenie nce
op eni ng) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 83
Wi ndsh ield hea ter ...... ..........................164
Coat hook .................................................1 32
Co ckpit <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>6
Ov ervie w <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> ..............6
Co ffee cup symbol
see ATTENTION ASSIST Collapsible
sparewheel .......................... 387
Inf lating .......................................... ..... 388
No tes ................................................... 387
Re mo ving ............................................ 388
Col lision detection (parked vehicl e)...... 200
Comb inationswi tch ...... ..........................144
Com puter
see On-boar dcom puter
Consum ption indicat or
Calling up........................................ .... 185
Con venience closing featur e....... ............. 83
Co nvenience opening................................ 83
Coolant (engine)
Capacit y.......................................... .... 399
Chec kleve l.......................................... 326
No tes .................................................. 398
Cool ing
see Clima tecontr ol
Co pyrights
Licen se.................................................. 34
Tr ademar ks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 35
Co rnering light .........................................1 46 Cr
oss Traf fic Aler t...................................2 60
Cr oss wind Ass ist
Fu nctio n/no tes ................................... 206
Cr uise contr ol.......................................... 212
Butt ons <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> .......213
Callin gup aspee d...............................2 13
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>212
Re quiremen ts:.....................................2 13
Sel ecting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 213
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 213
St or ing aspeed .................................... 213
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 213
Swi tching on<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 213
Sy stem limit ations ...............................2 12
Cup holder
Swit ching thecooling/ heatingfunc‐
tion on/off.......................................... 133
Cush ionba g................................................ 42
Cus tomer Assist ance Center (CAC ).........2 9
Cus tomer Relat ions Depar tment .............2 9 480
Index