*
NO
TEDama getotheve hicle af ter driving
off-road When driving off-road or on unpa
ved sur fa‐
ces, fore ign bodies such as stones and
branches could become trapped on theve hi‐
cle underside, on wheels and tires, causing
damage totheve hicle.
Fo reign bodies could cause thefo llowing
damage:
R Damage the suspension, the fuel tank or
th e brake sy stem.
R Disturb the balance and cause vibrations. #
Regular lyremo veany trapped fore ign
bodies, e.g. stones and branches. #
After driving off-road, check carefully
whe ther there is any damage tothe
ve hicle. #
Ifth ere is damage, ha vetheve hicle
ch ecked at a qualified specialist work‐
shop. When driving off-road or on unpa
ved sur faces,
ch eck theve hicle underside, wheels and tires
re gularly at regular inter vals. In particular,
re mo veany trapped fore ign bodies, such as
st ones and branches.
Obser vethefo llowing no tesre ga rding fore ign
bodies of this kind:
R They may damage the suspension, the fuel
ta nk or the brake sy stem.
R They may disturb the balance and cause
vibrations.
R They may be flung out from theve hicle when
yo u continue driving.
If th ere is any damage, inform a qualified special‐
ist workshop.
When driving off-road on steep inclines, you must
make sure that the DEF tank is su fficiently filled.
Therefore, ensure a le vel of at least ten li ters
before off-road driving.
When driving off-road and on con stru ction sites,
sand, mud and water,also mixed with oil, can get
into the brakes. This may lead toare duction in
braking ef fect or total brake failure, also as a
re sult of increased wear. The braking characteris‐
tics will vary depending on the material that has
got into the sy stem. Clean the brakes af ter driv‐
ing off-road. If youth en notice a reduced braking
ef fect or hear scraping noises, ha vethe brake sy
stem checked immediately at a qualified spe‐
cialist workshop. Adjust your driving style to the
ch anged braking characteristics.
Driving off- road or on con stru ction sites increa‐
ses the possibility of vehicle damage which may
in turn lead tothefa ilure of cer tain major assem‐
blies and sy stems. Adapt your driving style to the
off-road driving conditions. Drive carefull y.Ha ve
any vehicle damage rectified at a qualified spe‐
cialist workshop as soon as possible.
When driving on rough cross-country terrain, do
not shift the transmission toneutral and do not
disengage the clutch. You could lose control
when attem pting tobrake theve hicle with the
service brake. If your vehicle cannot manage an
uphill incline, drive back down in reve rsege ar.
When loading your vehicle for off-road driving or
on a construction site, keep theve hicle's center
of gr avity as low as possible.
Checklist before off-road driving R Check the fuel and DEF le vels (/ page175)
and refill if necessary (/ page133).
R Engine: check the oil le vel and add oil if nec‐
essary (/ page 281). Before driving up or
down extreme inclines or slopes, fill th e oil to
th e maximum le vel.
% If
yo u drive up or down extreme inclines or
slopes, the00B2 symbol may appear in the
multifunction displa y.The engine operating
saf ety is not put at risk if you ha vefilled the
engine oil tothe maximum le vel before the
jou rney.
R Vehicle tool kit: check that the jack is work‐
ing (/ page 327).
R Make sure that a lug wrench (/ page 327), a
wo oden underlay forth e jac k,aro bust tow
ro pe, a folding spade and a wheel chock
(depending on equipment) are car ried in the
ve hicle.
R Tire s and wheels: check the tire tread dep th
( / page 308) and the tire pressure
(/ page 316).
Ru les for off-road driving
Alw ays be aware of the ground clearance of the
ve hicle and avoid obs tacles such as deep tire
ru ts. Driving and pa
rking 117
Using electronic le
vel control forch arging
with air in an emer gency *
NO
TEDama gedue topressure being too
high If
th e pressure in the air suspension bello ws
is too high, the compressed-air lines or the air
suspension bello wsmay be dama ged. #
Ensure you obse rveth e maximum per‐
missible operating pressure of 900 kPa
(9 bar/130 psi). Only
forve hicles with valves for electronic le vel
control emergency charging. If electronic le vel
control is malfunctioning and theve hicle is lean‐
ing, you can raise or lo werth eve hicle bycon‐
necting an extern al compressed-air source toone
of the emer gency valves (similar ly as withtire
va lve) . If electronic le vel control is not opera‐
tional, you can drive on carefully tothe nearest
qu alified specialist workshop and ha vethe mal‐
function remedied. #
Apply the parking brake. #
Vehicles with automatic transmission:
shift the transmission toposition 005D. #
Switch off the engine. #
Turn theva lve cap of the cor responding valve
(1 L = left, 2R = right). #
Connect theex tern al compressed-air source. #
Raise or lo werth eve hicle le velby charging or
re leasing compressed air until the driving
le ve l has been reached and theve hicle is in a
horizontal position. While doing so, ensure
yo u obse rveth e maximum permissible oper‐
ating pressure of 900 kPa (9 bar/130 psi). #
Disconnect theex tern al compressed-air
source. #
Tighten theva lve cap on theva lve (1 L =
left, 2R = right). #
Drive on carefully tothe nearest qualified
specialist workshop. 13 2
Driving and pa rking
Depending on
theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grill. Keep these parts
free of dirt, ice and slush (/ page 288). The sen‐
sors must not be co vered, forex ample bybicycle
ra ck s, overhanging loads or sticke rs. Af ter a colli‐
sion, ha vethe function of thera dar sensors
ch ecked at a qualified specialist workshop as
damage (bo thvisible or non-visible) may ha ve
occur redto the bumper or radiator trim. Fu
nction of driving sy stems and driving
saf ety sy stems In
this section, you will find information about the
fo llowing driving sy stems and driving saf ety sys‐
te ms:
R ABS ( Anti-lock braking system)
(/ page 146)
R ASR (acceleration skid control) (/ page 147)
R BAS (Brak eAssist System) (/ page146)
R ESP ®
(Electronic Stability Program)
(/ page 147)
R EBD ( Electronic Brakeforc eDistribution)
(/ page 148)
R Active Brake Assi st (/ page 149)
R Cruise co ntrol (/ page 151)
R Active Dis tance Assi stDISTRONIC
(/ page 152)
R Hill start assist (/ page155)
R HOLD fu nction (/ page 155)
R Parking Assist PARKTRONIC (/ page156)
R Rear view camera (/ page157)
R Surround view camera (/ page159)
R ATTENTION ASSIST (/ page162)
R Traf fic Sign Assi st (/ page 163)
R Blind Sp otAssi st (/ page 164)
R Active Lane Keeping Assist (/ page167) Fu
nctions of ABS (Anti-lock Braking Sy stem) Obser
vethe impor tant sa fety guidelines forthe
driving saf ety sy stem. ABS cont
rols the brake pressure in critical situa‐
tions:
R The wheels are pr evented from lo cking when
braking, e.g. during maximum full-s top brak‐
ing or when there is insuf ficient tire traction
R The steerability of theve hicle in term s of
ph ysical possibilities is ensured when braking
R ABS is active from speeds of appr ox. 3 mph
(5 km/h). On a slippery road sur face, ABS
inter venes even if you on lybrake gently.
Sy stem limits
If th ere is a malfunction and theye llow 0025 ABS
wa rning lamp lights up continuously in the instru‐
ment display af terst arting the engine, ABS may
be impaired or inoperative.
If ABS inter venes, you will feel a pulsing in the
brake pedal. The pulsating brake pedal may be an
indication of hazardous road conditions and func‐
tions as a reminder totake extra care while driv‐
ing.
If ABS in terv enes: keep the brake pedal firm ly
depressed until the braking situation has passed.
To car ryout maximum full-s top braking:
dep ress the brake pedal with full forc e. Fu
nction of BAS (Brake Assist Sy stem) &
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assi stSys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an emergency braking situation is
increased. #
Depress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. BA
S suppo rts yo u with additional braking forc e in
an emer gency braking situation.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatically boosts the braking forc e of
th e brakes
R BAS can sho rten the braking dis tance
R ABS pr events the wheels from locking
When youre lease the brake pedal, the brakes
function as usual again. BAS is deactivated. 14 6
Driving and pa rking
Au
tonomous braking function
The autonomous braking function may inter vene at speeds starting from appr oxima tely 4mph
(7 km/h) in thefo llowing situations: Ve
hicles tr avel‐
ing in front St
ationary vehi‐
cles Crossing
vehi‐
cles Crossing pedes‐
trians/cycli
stsSt
ationary
pedestrians
Up toappr ox.
15 5mph
(250 km/h) Up
toappr ox.
12 4mph
(200 km/h) No
reaction Uptoappr ox.
37 mph
(60 km/h) No
reaction Situation-dependent braking assistance
Situation-dependent braking assistance may inter vene at speeds starting from appr oxima tely
4 mp h (7 km/h) in thefo llowing situations: Ve
hicles tr avel‐
ing in front St
ationary vehi‐
cles Crossing
vehi‐
cles Crossing pedes‐
trians/cycli
stsSt
ationary
pedestrians
Up toappr ox.
15 5mph
(250 km/h) Up
toappr ox.
50 mph
(80 km/h) No
reaction Uptoappr ox.
37 mph
(60 km/h) No
reaction Canceling a brake application of
Active Brake
Assi st
Yo u can cancel a brake application of Active
Brake Assi stat any time by:
R Fully depressing the accelerator pedal or with
kickdown.
R Fully releasing the brake pedal (only during
situation-dependent braking assis tance).
Ac tive Brake Assi stmay cancel the brake applica‐
tion when one of thefo llowing conditions is fulfil‐
led:
R You maneuver toavo idthe obs tacle.
R Thereis no longer a risk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle.
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations:
R The sensors are af fected bysno w,rain, fog or
heavy spr ay.
R The sensors are dirty, fogged up, damaged or
co vered.
R The sensors are af fected byinter fere nce from
ot her radar sources, e.g. strongradar reflec‐
tions in parking garage s. R
If a loss of tire pressure or a faulty tire has
been de tected and displa yed.
R Full sy stem per form ance is not available for a
fe w seconds af ter switching on the ignition or
af te r driving off.
The sy stem may not react cor rectly in thefo llow‐
ing situations:
R In complex traf fic situations, objects may not
al wa ys be clear lyde tected.
R Pedestrians or vehicles mo vequickly into the
de tection range of the sensors.
R Pedestrians are obscured by other objects.
R In bends with a nar rowradius. Setting
Active Brake Assi st Requ
irements:
R The ignition is switched on.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Active Brake Assist
The following settings are available:
R Early
R Medium
R Late
R Off 15 0
Driving and pa rking
not a sy
stem for automatically keeping tothe
lane. You are responsible forth e dis tance tothe
ve hicle in front, forve hicle speed, braking in good
time and forst ay ing in your lane. If a lane-cor
recting brake application from Active
Lane Keeping Assist occurs, display 1appears
in the multifunction displa y.
Sy stem limits
No lane-cor recting brake application from Active
Lane Keeping Assist occurs in thefo llowing situa‐
tions:
R You clearly and actively steer, brake or accel‐
erate.
R You swit chon the turn signal.
R A driving saf ety sy stem inter venes, su chas
ESP ®
or Active Brake Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R ESP ®
has been switched off.
R When driving with a trailer, the electrical con‐
nection tothe trailer has been cor rectly
es tab lished.
R If a loss of tire pressure or a faulty tire has
been de tected and displa yed.
The sy stem may be impaired or may not function
in thefo llowing situations:
R There is poor visibilit y,e.g. due toinsuf ficient
illumination of thero ad, highly variable shade
conditions, or due torain, sno w,fog or heavy
spr ay.
R Glare from oncoming traf fic, direct sunlight or
re flections.
R There is dirt on the windshield in the vicinity
of the multifunction camera or the camera is
fo gged up, damaged or obscured.
R No or se veral unclear lane markings are pres‐
ent for one lane, e.g. in a construction area.
R The lane markings are worn, dark or co vered. R
The dis tance totheve hicle in front is too
small, and therefore the lane markings cann ot
be de tected.
R The lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
R The roadw ayisvery nar row and winding.
Ac tivating/deactivating Lane Keeping Assist
or Active Lane Keeping Assist
Multimedia sy stem:
4 © 5
Settings 5
Assistance #
Select Lane Keeping Assist orAct. Lane
Keep Asst. On.
Ac tivating or deactivating the warning #
Select Lane Keeping Assist orAct. Lane
Keep Asst. On. #
Select Warning. Wo
rkmode ADR (working speed control)
Fu
nction of ADR (working speed control)
When activated, ADR automatically increases the
engine speed toa preset speed or a speed you
ha ve set.
% Af
ter a cold start, the idle speed of the
engine is increased automaticall y.Ifth e pre‐
set working speed is lo werth an the
inc reased idle speed, thewo rking speed is
only reached once the engine has comple ted
th ewa rm-up phase.
It is only possible toactivate ADR with the
ve hicle stationary and the parking brake
applied.
On vehicles with automatic transmission, the
selector le ver must be in position 005D. 16 8
Driving and pa rking
designed
forth e trailer operation
re qu irements. #
Do not modify the ball coupling or the
trailer hitch. &
WARNING Risk of accident and inju ry
due toan incor rectly ins talled ball cou‐
pling
If th e ball coupling is not ins talled and
engaged cor rectly, it may become de tach ed
during tr avel and endanger other road users.
There is a risk of fata l injur y. #
Install and secure the ball coupling as
described in the ball coupling manufac‐
turer's ins tallation instructions. #
When the ball coupling has been ins tal‐
led, ensure that it is cor rectly secu red
before every trip. &
WARNING Risk of accident due toan
incor rectly ins talled and secured ball
coupling
If th e ball coupling has not been cor rectly
ins talled and secured, the trailer can become
de tach ed. #
Install and secure the ball coupling as
described in the ball coupling manufac‐
turer's ins tallation instructions. #
When the ball coupling has been ins tal‐
led, ensure that it is cor rectly secu red
before every trip. *
NO
TEWearing out the brake linings by
continuously dep ressing the brake pedal #
Do not depress the brake pedal continu‐
ously whilst driving. #
Touse the braking ef fect of the engine,
shift toa lo werge ar in good time. Alw
ays comply with the operating instructions of
th e manufacturer of the trailer coupling and the
ball nec k.
Place your vehicle/trailer combination on sur fa‐
ces that are as even as possible and secu reit
against rolling away ( /page 140). Couple and
uncouple the trailer carefully.
When backing up theto wing vehicle, ensure that
th ere is no-one between theve hicle and the
traile r. If
yo u do not couple the trailer totheto wing vehi‐
cle cor rectly, the trailer may become de tach ed.
Once it has been coupled and is roadwor thy, the
trailer mu stbe in a horizon tal position behind the
to wing vehicle.
No tethefo llowing rega rding theto ngue weight:
R Make full use of the maximum tongue weight,
where possible.
R Neverfa ll below a legally prescribed minimum
to ngue weight; theto ngue weight must
alw ays be positive.
R Do not exceed or fall below the permissible
to ngue weights – this must be obser ved dur‐
ing loading and unloading of the trailer.
Do not exceed thefo llowing values:
R Perm itted braked or unbraked towing capa‐
city
The maximum permissible towing capacity for
unbraked trailers is 1,653 lbs (750 kg).
R Perm issible rear axle load of theto wing vehi‐
cle
R Perm issible gross mass of theto wing vehicle
R Perm issible gross mass of the trailer
R Perm issible gross comb ination mass
R Maximum permissible speed of the trailer
The releva nt pe rmitted values, which must not be
exc eeded, can be found in thefo llowing places:
R Inyour vehicle documents
R Onthe identification plate of the trailer hitch
R Onthe trailer's identification plate
R Ontheve hicle identification plate
If th ere are discrepancies between theva lues, the
lo we stone shall appl y.
Before driving off, ensu rethefo llowing:
R The tire pressure on there ar axle of theto w‐
ing vehicle has been set forth e maximum
load.
R The headlamps ha vebeen set cor rectly.
Va lues appr ovedby the manufacturer can be
fo und on the identification plates and in the sec‐
tion forth eto wing vehicle (/ page311). 17 0
Driving and pa rking
ga
in driving experience and become accus‐
to med tothe new handling characteristics.
R Before driving, check thefo llowing:
- that the trailer tow hit chand ball coupling
are secure
- that the saf ety swit chfor braked trailers is
functioning cor rectly
- that the saf etych ains are secure and
undamaged
- that the electrical connections are secure
- that the lights are functioning cor rectly
- the wheels for dama geand cor rect tire
pressure (/ page 308)
R Adjust the outside mir rors so that you ha ve a
clear view of there ar section of the trailer.
R Ifth e trailer is equipped with an individual
braking sy stem, check before each journey
whe ther the brakes are functioning cor rectl y.
R Ifth e trailer has electronically cont rolled
brakes, pull away carefully wi th theve hicle/
trailer combination. Brake manually using the
brake controller and check whe ther the
brakes are functioning cor rectl y.
R Secu rethe load on the trailer in line with the
re qu irements and rules for load-securing
me thods.
R When driving with a trailer, check at regular
inter vals that the load is secure and that the
lights and brakes are functioning cor rectl y.
R Bear in mind that the handling characteristics
are more uns table when towing a trailer than
when driving without a trailer. Avoid sudden
st eering mo vements.
R The vehicle/trailer combination is heavier,
accelerates more slowl y,has a reduced
climbing ability and an increased braking dis‐
ta nce. It is more susceptible toside winds
and requ ires careful steering.
R If possible, do not brake suddenl y,but rath er
moderately at firs t so that the trailer can acti‐
va te its brakes. Then inc rease the pressure on
th e brake pedal.
R Ifth e automatic transmission shifts between
ge ars on uphill or downhill gradients, restrict
th e shift range. Select shi ftrange 4, 3, 2 or 1.
A lo werge ar and reduced speed decrease the
ri sk of engine damage.
R When driving on a downhill gradient, shift to a
lo we rge ar to use the engine's braking ef fect. Av
oid cons tant braking, as this could cause
th eve hicle brakes and possibly also the
trailer brakes toove rheat.
R Ifth e coolant temp erature increases signifi‐
cant lywhen the air-conditioning sy stem is
switched on, switch the air-conditioning sys‐
te m off.
Coolant heat can also be dissipated by
switching the air flow and thete mp erature of
th e heater or air conditioning tothe maximum
le ve l. Open the windo wsif necessar y.
R When overtak ing, pay particular attention to
th e increased overtaking dis tance of your
ve hicle/trailer combination.
Due tothe length of your vehicle/trailer com‐
bination you will require a longer stre tch of
ro ad before swit ching back tothe original
lane. Pe
rm issible trailer loads and trailer dr awbar
nose weights We
ight information &
WARNING Risk of accident due to
unbraked trailer with excessively high
gross weight
If yo uto w a trailer without a separate func‐
tional braking sy stem and a gross trailer
we ight (G TW) of more than 1635 lbs (750 kg),
th en theve hicle brake sy stem may overheat.
This increases the braking dis tance and the
brake sy stem may even fail. #
Always use a trailer with a separate
functional braking sy stem when towing
a trailer with a gross trailerweight
(G TW ) of more than 1635 lbs (750 kg). *
NO
TEDama getothe drive train, trans‐
mission or trailer tow hit chdue toexc ess
gross combination weight The permissible
gross combinationweight is
exc eeded.
The drive train, the transmission or the trailer
to w hit chmay be dama ged. #
Comply with the permissible gross com‐
bination weight. Fo
rve hicles with a permissible gross vehicle
we ight of 11030 lbs (5003 kg),th e permissible
gross combination weight is less than the sum of Driving and parking
17 3
Instrument Display with black
and white dis‐
play
1 Outside temp erature
2 Display section
3 Time
4 Transmission position
Fu rther displa yson the multifunction display:
0097 Gearshift
recommendation
é Parking Assist PARKTRONIC swit ched
off
00B2 Cruise cont
rol (/ page 151)
ç Active Dis tance Assi stDISTRONIC
(/ page 152)
z DSR (/page126)
00D9 HOLD fu
nction (/ page 155)
00CE Ad
aptive Highbeam Assist
(/ page 86)
Û ATTENTION ASSIST switched off
003E A door is not fully closed.
00C5 Re
ar wind owwiper swit ched on
(/ page 95)
002E LO
W RANGE active (/ page126)
SOS
NOT
RE ADY Emergency call sy
stem not active
h Active Lane Keeping Assist switched
off (/ page167)
00D4 Ac
tive Brake Assi stswitched off
(/ page 149)
e Blind SpotAssi stswitched off
(/ page 164)
Ve hicles with Traf fic Sign Assis t:de tected traf‐
fi c signs and messages (/ page 163). Setting
the instrument lighting #
Turn brightness control knob 1upwards or
down wards.
The lighting on the Instrument Display and
th e cont rol elements in theve hicle interior is
set.
% In
vehicles without brightness contro l knob
1, the instrument lighting can be set via the
on-board computer (/ page183). Menus and submenus
Calling up functions on
the service menu On-board computer:
4 Service #
Select and con firm there qu ired function.
The following functions are available on the
service menu:
R Announcements: message memory
(/ page 355)
R DEF: display the DEF fill le vel (/ page 137)
R Tires:
- Che ckthe tire pressure with the tire pres‐
sure monitor (/ page316)
- Restart the tire pressure monitor
(/ page 316)
R ASSYST PLUS : call upthe service due date
(/ page 278)
R Engine Oil Level: measu rethe engine oil le vel 17 8
Instrument Display and on-board computer