Problems with hot
water auxiliary heating Problem
Possible causes/consequences and 0050 0050Solutions
FA IL00A3 Signal transmission between transmitter and
vehicle is malfunctioning. #
Change your position in relation totheve hicle, moving closer if nec‐
essar y.
FA IL The
star ter battery is not suf ficiently charge d. #
Charge thest ar ter batter y.
The fuel tank is not filled up tothere ser veleve l. #
Refuel at the nearest gasst ation.
FA IL0099 Au
xilia ryheating is malfunctioning. #
Have the auxiliary heating checked at a qualified specialist work‐
shop. Operating cargo compartment
ventilation If
yo ur vehicle is equipped with a roof ventilator,
yo u can admit fresh air tothe cargo compart‐
ment, or extract air from it as well. #
Swit chon the ignition. #
Toswitch on and extract: press switch 1
at theto p.
The roof ventilator remo ves used air from the
cargo compa rtment. #
Toswitch on and admit fresh air: press
switch 2atthe bottom.
The roof ventilator feeds fresh air into the
cargo compa rtment. #
Toswitch off: setthe switch tothe center
position. 108
Climate cont rol
Diesel pa
rticulate filter Note
s onrege neration &
DANG ER Risk of death caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vethe engine or, if present,
th e auxiliary heating running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk offire caused byhot
ex haust sy stem parts
Flammable materials such as lea ves, grass or
twigs may ignite. #
Park theve hicle so that no flammable
material can come into con tact wi thhot
ve hicle components. #
In particular, do not park on dry grass‐
land or har vested grain fields. Re
generation wi thout inter ruption take s appr ox.
15 minutes.
If th eve hicle is predominantly used for short dis‐
ta nce driving or extended non-operational times,
th is could lead toa malfunction in the automatic
cleaning function forth e diesel particulate filter.
As a result, permanent blocking of the diesel par‐
ticulate filter may occur. and fuel may also accu‐
mulate in the engine oil and cause engine failure.
If yo u main lydrive short dis tances, you should
drive on a free way or go for a country drive for 20
minutes every500 km (300 miles). This facili‐
ta testh e diesel particulate filter's burn-off proc‐
ess.
* NO
TEDama gedue tohot exhaust gases During
rege neration, extremely hot exhaust
ga ses escape from theta ilpipe. #
During rege neration, maintain a mini‐
mum di stance of 7 ft(2 m) from other
objects, e.g. par kedve hicles. Displaying load
On-board computer:
4 Service 5
Consumption Info
The load of the diesel particulate filter is dis‐
pla yed. Load display at
75% load #
Toexitth e displa y:press the back button on
th e left-hand side of thesteering wheel.
Bear in mind thefo llowing related topic:
R Operating the on-board computer
(/ page 120) Battery main switch
Note
s onthe bat tery main switch *
NO
TEDama getothe electrical sy stem If
yo ure mo vethe battery main switch, it
could lead tothe electrical sy stem becoming
damaged. #
Make sure that the ignition is switched
off and that at least 15minutes ha ve
passed before removing the battery
main switch. Otherwise, electrical sys‐
te m components could be dama ged. Yo
u can use the battery main switch todiscon‐
nect the cur rent toall your vehicle's consumers.
This will pr event uncontrolled battery discha rge
caused byquiescent cur rent consumers.
If yo ur vehicle is equipped with an auxiliary bat‐
te ry inthe engine compartment or in the base of
th e co-driver's seat, you must disconnect bo th
batteries. Only then is the electrical sy stem fully
disconnected from the po wer supp ly. 12 0
Driving and pa rking
%
Only disconnect theve hicle from the po wer
supply using the battery main switch in the
fo llowing situations:
R The vehicle is stationary for a long time
R It is absolutely necessary todisconnect
th eve hicle from the po wer supply
Af ter switching on the po wer supp ly,yo u will
need toreset the side windo ws (/page 58)
and the electric sliding door (/ page 55).Switching
the po wer supply on/o ff Switching off
the po wer supply Battery main switch
* NO
TEDama getothe auxiliary battery in
ve hicles with a rear wheel drive and auto‐
matic transmission If
th e battery main switch is remo ved, the
auxiliary battery could be damaged byheavy
discharging. #
Do not remo vethe battery main switch. #
Consult a qualified specialist workshop
to put theve hicle out of use. %
No
tethere maining time before the next
service due date and oil change . The time
re cording is also dis rupted if the po wer sup‐
ply is disconnected. #
Switch off the ignition and wait at least
15 minutes. #
Remo vecover1. Todo this, take hold of the
co ver at the upper edge, mo veit outwards in
th e direction of the driver's door and lift it off. #
Press and hold button 3. #
Pull plug 2out of the ground pin. #
Push plug 2asfar as possible in the direc‐
tion of the ar row sothat it cannot make con‐
ta ct wi th the ground pin.
All star ter battery consumers are disconnec‐
te d from the po wer supp ly.
Switching on the po wer supply Battery main switch
#
Press plug 2onto the ground pin until you
fe el it engage and plug 2is in full contact
with the ground pin.
All star ter battery consumers are reconnec‐
te dto the po wer supply. #
Fasten co ver1. Todo this, place the co ver
on from abo ve. #
Press the co ver into the neighboring switch‐
ing console on theright hand side. Driving and parking
121
Coupling/uncoupling a trailer
Coupling a trailer
* NO
TEDama getotheve hicle battery due
to full discharge Charging
the trailer battery using the po wer
supply of the trailer can damage theve hicle
batter y. #
Do not use theve hicle's po wer supply
to charge the trailer batter y. #
Shift the selector le verto position 005D. #
Apply theve hicle's parking brake. #
Close all the doors. #
Position the trailer on a le vel sur face behind
th eve hicle.
% The ball head height
changes depending on
th eve hicle's load. In this case, use a trailer
with a height-adjus table trailer dr awbar. #
Couple up the trailer. #
Establish all electrical and other connections
to the trailer. #
Remo veobjects or devices which pr eventthe
trailer from rolling, e.g. wheel choc ks. #
Release the trailer's parking brake.
% The
vehicle harness has a cable connection
to the brake light indicator lamp.
Obser vethe maximum permissible trailer dimen‐
sions (width and length).
Most US states and all Canadian pr ovinces pre‐
scribe thefo llowing points, and you are ur gently
re commended tocomply wi th these:
R Safetych ains between theto wing vehicle and
th e trailer. The chains should be routed in a
criss-cross pat tern under the trailer dr awbar.
They must be connected tothe trailer tow
hitch and not tothe bumper or totheve hicle
axle.
Lea vesuf ficient sla ckinthech ains. This
allo wsforeve n sha rpcornering.
R A separate brake sy stem is requ ired for cer‐
ta in trailers.
R A saf etyfe ature is requ ired for braked trailers.
De term ine the specific requ irements acco rd‐
ing tothere leva nt la ws.
If th e trailer becomes de tach ed from theto w‐
ing vehicle, the saf etyfe ature triggers the
trailer brakes and can thus reduce the danger. Un
coupling a trailer &
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an
engaged overrun brake. Do not uncouple a trailer with an
overrun brake in
a st ate of overrun. Otherwise, there bound of the
ove rrun brake can damage your vehicle. #
Shift the selector le verto position 005D. #
Apply theve hicle's parking brake. #
Close all the doors. #
Apply the trailer's parking brake. #
Secure the trailer against rolling away with a
wheel chock or similar object. #
Remo vethe trailer cables and saf etych ains. #
Uncou plethe trailer. Information about
towing a trailer Operating a trailer is subject
tomany statutory
re gulations such as speed restrictions.
Many states also requ ire an auxiliary separate
functional braking sy stem when towing a weight
th at exc eeds a cer tain limit. Foryo ur saf ety, it is
re commended touse a separate functional brak‐
ing sy stem on any towe dve hicle.
Make sure that your trailer combination meets
local regulations. This not only applies to your
place of residence, but also to your destination.
In fo rm ation on this can be obtained from the
police and local authorities.
Comply with thefo llowing when driving with a
trailer:
R Practice cornering, stopping and backing up
in a traf fic-free location. In this wa y,yo u will 17 2
Driving and pa rking
If
yo uwa nttoreplace thest ar ter battery yourself,
obse rveth efo llowing no tes:
R Alwaysre place a defective star ter battery
with a star ter battery which meets the spe‐
cific requ irements of theve hicle.
R Carryove r de tach able parts such as theve nt
hose, elbow fitting or term inal co ver from the
st ar ter battery tobe replaced.
R Make sure that theve nt hose is al ways con‐
nected toits original opening on the battery
side.
Ins tallth eex isting or newly supplied stop
plugs.
Otherwise, gases or battery acid could
escape.
R Make sure that the de tach able parts are con‐
nec ted in the same way as before. Disconnecting
the auxiliary bat tery inthe
engine compa rtment *
NO
TEDama getoelectrical assemblies Elect
rical assemblies could be damaged if the
st ar ter battery is disconnected while the
engine is running. #
Switch off the engine. Then, release the
battery clamps of thest ar ter batter y. #
Always disconnect thest ar ter battery in
th e battery case in the left foot we llfirs t.
Otherwise, electrical assemblies, e.g.
th e alternator, could be damaged. *
NO
TEDama getotheve hicle's electron‐
ics Incor
rectly disconnecting the auxiliary battery
can cause damage totheve hicle's electron‐
ics. #
Always disconnect the auxiliary battery
as described in thefo llowing sequence.
Do not reve rseth e battery term inals
under any circums tances. #
Obser vethe saf ety measures and pr otection
notices when disconnecting the auxiliary bat‐
te ry ( / page 295). #
Switch off all electrical consumers. #
Switch off the engine and the po wer supp ly. #
Open the hood (/ page278). #
Firs t loosen and remo vethe negative term inal
clamp on the auxiliary battery so that the
cla mp is no longer in con tact wi th thete rm i‐
nal. #
Remo vethe positive term inal clamp co ver. #
Loosen and remo vethe positive term inal
clamp. To
wing or tow- starting Overview of permissible
towing me thods In
theeve nt of a breakdown, Mercedes-Benz rec‐
ommends that you ha vetheve hicle transpor ted
ins tead of towe d.
* NO
TEDama getotheve hicle due to tow‐
ing away incor rectly #
Obser vethe instructions and no tes on
to wing away. %
Ve
hicles with automatic transmission
and rear-wheel drive: ifth ere is a malfunc‐
tion, the automatic transmission may be
loc ked in position 005D.
If th e automatic transmission cann otbe shif‐
te dto position 005C, transport theve hicle
(/ page 303). A towing vehicle with lifting
equipment is requ ired forve hicle transport. 300
Breakdown assis tance
Display messages
Possible causes/consequences and 0050 0050Solutions #
Pull over and stop theve hicle safely as soon as possible,
paying attention toroad and traf fic conditions. Do not con‐
tinue driving under any circums tances. #
Consult a qualified specialist workshop. #
Stop theve hicle immediately in accordance with the traf fic con‐
ditions. Do not continue driving. #
Consult a qualified specialist workshop.
Shift to 'P' or 'N' to Start
Engine *
Yo u ha veattem pted tostart the engine in transmission position 005B
or 005E. #
Shift the transmission toposition 005Dor005C.
To Engage Transmiss.
Position R First Depress
the Brake *
Yo u ha veattem pted toshift from position 005Bor005C toposition 005E. #
Depress the brake pedal. #
Shift the transmission toposition 005E.
Air Conditioning Malfunc-
tion See Operator's Man-
ual *T
he function of the climate cont rol sy stem is temp orarily restricted.
The quantity of air and flow of fresh air are contro lled automatically. #
Have the climate cont rol sy stem checked at a qualified specialist
wo rkshop.
Auxiliary Battery Mal-
function *T
he auxiliary batteryforth e transmission is no longer being
ch arge d. #
Visit a qualified specialist workshop. #
Until then, alw ays shift the transmission toposition 005Dmanually
before you swit choff the engine. #
Before leaving theve hicle, apply the parking brake.
Reversing Not Possible
Service Required *T
he transmission is malfunctioning. It is no longer possible toselect
re ve rsege ar. #
Visit a qualified specialist workshop.
Transmission Malfunc-
tion Stop *T
he transmission is malfunctioning. The transmission automatically
shifts toposition 005C. #
Stop theve hicle immediately in accordance with the traf fic con‐
ditions. #
Shift the transmission toposition 005D. #
Consult a qualified specialist workshop.
0072
Vehicle Operational
Switch the Ignition Off
Before Exiting *Y
ou are about toexitth eve hicle when it is in a ready-to-d rive state. #
When youex itth eve hicle, switch off the ignition and take the
ke y with you. #
Ifyo u do not exitth eve hicle, switch off the electrical consum‐
ers, e.g. the seat heating. Otherwise, the12 ‑V battery may dis‐
ch arge and it will be possible tostart theve hicle only with the
aid of a second battery (s tarting assis tance).
Service Required Do Not
Shift Gears Visit Dealer *T
he transmission is malfunctioning. The transmission position can
no longer be changed. Display messages and
warning and indicator lamps 373
Android
Auto ......................................... 252
Connecting a mobile phone .............. 253
Control using the application but‐
to ns .................................................. 253
Ending .............................................. 253
No te ................................................. 253
Overview .......................................... 252
Sound settings ................................. 253
Tr ans ferred vehicle data ...................2 53
Animals Pets in theve hicle .............................. 45
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft Alarm sy stem
see ATA (Anti -Theft Alarm sy stem)
Anti-theft pr otection
Immobilizer ........................................ .61
Anti-theft pr otection
see ATA (Anti -Theft Alarm sy stem)
Apple CarPlay ®
...................................... 251
Connecting an iPhone ®
.................... 252
Control using the application but‐
to ns .................................................. 252
Ending .............................................. 252
No tes ................................................ 251
Overview ...........................................2 51
Sound settings ................................. 252
Tr ans ferred vehicle data ...................2 53
Ashtr ays
In the windshield stowage com‐
partment ............................................ 79
ASR (acceleration skid cont rol) .......... .147
Assistance graphic (on-board com‐
puter) ..................................................... 17 9
ASS YST PLUS ........................................ 278
Battery disconnection periods .......... 278
Displ aying the service due date ........ 278
Fu nction/no tes ................................ 278
Re gular maintenance work ............... 278
Special service requirements .......... .278
ATA (Anti-Theft Alarm sy stem) .............. .61
Ac tivating/deactivating the interior
motion sensor .................................... 63
Fu nction .............................................. 61
Interior motion sensor function .......... 63
St opping the alarm ............................. 62
Switching theto w- aw ay alarm
on/off ................................................ 62
To w- aw ay alarm function .................... 62 At
tachments .......................................... .22
AT TENTION ASSI ST....................... 162, 16 3
Fu nction ........................................... 16 2
Setting .............................................. 16 3
Sy stem limitations ............................1 62
Au thorized workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights ........................84
Au tomatic transmission
DIRECT SELECT le ver ........................ 12 2
Engaging drive position .................... 12 3
Engaging neutral ............................... 12 2
Engaging reve rsege ar ...................... 12 2
Kickdown .......................................... 124
Re stricting the shift range ................ 124
Selecting pa rkposition .....................1 23
Tr ansmission position display .......... .122
Tr ansmission positions .................... .122
Au xiliary heating ..................................1 05
Fu nction ........................................... 105
Axle load .............................................. .338 B
Back support see Lumbar support (4-w ay)
BA S (Brake Assist Sy stem) .................. 14 6
Battery Charging ........................................... 295
Charging a vehicle battery ................2 95
Disconnecting the auxiliary battery
in the engine compartment .............. 300
Disconnecting thest ar ter battery .... 298
Jump -sta rting (vehicle) .................... .295
Ke y .................................................... .47
No tes (vehicle) ................................. 294
Re moving or ins talling thest ar ter
battery .............................................2 99
St arter battery .................................. 297
Battery main switch Notes ................................................ 12 0
Switching po wer supp lyon/off ......... 121
Belt see Seat belt
Belt warning
see Seat belt
Blind Spot Assist .................................. 16 4
Ac tivating/deactivating .................... 16 5
Fu nction ........................................... 16 4
Re ar Cross Traf fic Alert .................... 16 6388
Index