check engine AUDI Q7 2010 Owner´s Manual

Clear vision
Lights
Switching the headlights on and off -'t!-
In the "AUTO" position, a light sensor* automatically
swit ches the head- and tai llights on and off in response
to light condition s.
F ig . 5 3 Inst rum ent
pan el: li ght swit ch
The light switch must not be overturned past the stops in
either direction.
Switching on automatic headlight control
-Turn the light swi tch to AUTO ::::, fig. 53.
Switching on the side marker lights
-Tur n the light sw itch to 300~.
Switching on the headlights and high beam
- Turn the light swi tch to ~D.
- Push the high beam lever forward towards the instrume nt
panel=>
page 69.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Switching off the lights
-Turn the lig ht swit ch to 0.
Clear vision
The headligh ts only work when the ignition is switched on. Whi le
sta rting the engine or when switchi ng off the ignition, the headlights
will go off and o nly the s ide marker lights will be on.
After start ing th e engine, the headlights are automatically adjusted*
to the load and a ng le of the vehicle (fo r example, during acceleration,
braking) . This prevents oncoming traffic from experiencing unneces­
sary head light glare from your head lig hts.
If the system is not operati ng p roperly, a warning symbol in t he Auto­
Check Control is displayed =>
page 34.
With the side marker lights o r headlights switched on, the symbol
next to the light switch illuminates
coo:.
Daytime running lights
• USA models: The daytime running lights w ill come on automati­
ca lly when the ign ition is turned on and the light switch => fig. 53 is
in the
O position or the AUTO position (only in daylight conditions).
Th e
Daytime running light s function can be tu rned on and off in the
MMI menu
Exterior lighting=> page 66.
• Canada model s: The d ay time r unning ligh ts w ill come on a uto­
matically when the ig nitio n is turned on and the light switch=> fig. 53
is in the
O pos itio n or the AUTO position (on ly in daylight conditions)
=> & .
Automatic headlight control *
In the switch pos ition AUTO t h e automatic headlight control is
tu rned on. The low beams and tail lights a re turned on au tomatically
throug h a light sensor as soon as ambient br ightness (e .g . when
driving into a tunnel) falls below a va lue preset at the factory . When
amb ient b rightness increases again, the low beams are turned off
again automatically =>& . ..,_
Vehicle care Do-it-yourselt service iTechnical data

1111 ...... _A_ u_ t_o _m_ a_ t_ic _ t_ r_ a_ n_s _ m __ is_s_ , _·o _ n ____________________________________________ _
The selector lever must be in Nor P. If one of the driv ing positions is
eng aged a sa fety swi tch will p reven t the eng ine fr om being s tarted.
See also=>
page 125.
Before you move t he selecto r lever from t he P position, yo u m ust
a lw ay s a pply the brake ped al befo re a nd whi le de press ing the bu tton
in the handle of the selector lever.
& WARNING
• Unintended vehicle movement can cause serious injury.
- When the selector lever is in a driving position, the vehicle
may creep , even at idle speed. Therefore do not release the
parking brake or foot brake until you are ready to move,
because power is transmitted to the wheels as soon as a driving
position i s engaged .
- Do not accelerate while selecting a driv ing position . At this
time the engine must be at idle speed so that undue stre ss is
not placed on the clutches in the transmission .
- Remember: • even when stopped briefly with the automatic
transmission in "D", "S " or "R", engine power is being trans·
mitted to the wheels . Your vehicle could "creep " forward or
backward. When stopped, keep the brake pedal fully
depre ssed and use the parking brake if necessary to keep the
vehicle from roll ing .
• If the selector lever is unintentionally moved into N while you
are driving, take your foot off the accelerator pedal and wait for
the engine to return to idle speed before selecting a driving posi ­
tion .
• Never shift into "R" or "P " when the vehicle is in motion.
• Never get out of the d riv er 's seat when the engine is running.
• If you must get out of the vehicle, move the selector lever
securely into the P position and apply the parking brake firmly.
• If the engine must remain running, nev er have any driving
position engaged when checking under the hood. Make sure the
s e lector lever has securely engaged and is locked in "P " with the
& WARNING (co ntinued )
parking brake firmly set=> page 286, "Engine compartment".
Otherwise, any increa se in engine speed may set the vehicle in
motion, even with the parking brake applied. •
Selector Lever positions
Thi s sec tion describes the select or le ver p osit io ns and
driving ranges.
Fig. 160 Di spl ay in
th e in strument clu ster :
s elect or lever in posi·
t ion P
The instrument cluster display shows the current se lector lever posi­
t ion.
P -Park
In th is selector lever posi tion t he transmission is mecha nically
loc ked. Engage P only when th e vehicle is
completely stopped=> &
in "Driving t he automatic transm ission" o n page 161.
To shift in or out of pos ition P, yo u must first press and hold the brake
pe dal
and then press t he release button in the selector leve r handle
w hil e moving the selec to r lever to or from P. Y ou ca n shi ft out of this
position on ly w it h the ignition o n.
R -Reverse
Th e transm ission will automatica lly select the lowest gear ratio when
you s hift into reverse . _,,

Intelligent technology
--------------------------------------------------' '----'----
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR w ill also be out of action.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
To ensure that the ASR works properly, all four whee ls must be fitted
with ident ical tires. Any differences in rolling radius of the tires can
cause the system to reduce engine power when th is is not desired.
See also=>
page 326, "New tires and replacing tires and whee ls" .•
Braking
General information
What affects braking efficiency?
Operating conditions and driving habits
The brakes on today's automobiles are still subject to wear,
depending large ly on operating conditions and driving habits=>& .
On vehicles that are either driven mostly in stop -and -go city traffic or
are driven hard, the brake pads should be checked by your authorized
Audi dealer more often than specified in the
Warranty & Mainte­
nance booklet.
Failure to have your brake pads inspected can result
in reduced brake pe rformance .
On steep slopes, you should use the brak ing effect of the engine . This
way, you prevent unnecessary wear on the brake system. If you must
use your brakes, do not hold the brakes down continuously. Pump the
brakes at intervals.
Noises may occur when braking depending on the speed , braking
force and outside conditions such as temperature and humidity.
Safety first
Moisture or road salt
If you are driving faster than 31 mph (SO km/h) and the windshield
wipers are on, the brake pads wi ll briefly touch the brake discs in
regular interva ls so as to improve reaction time when braking on wet
surfaces . You, the driver, will not not ice anything.
Under certain cond itions, for example, when driving through wa ter or
very heavy rain, or even after washing yo ur vehicle , the braking effect
can be reduced due to moisture (or in free zing conditions ice) on the
brake pads. A few careful brake applications should dry off the brake
pads or remove any ice coatings .
The effect iveness of the brakes can be reduced when the vehicle is
dr iven on a sa lt-covered road and the brakes are not used. Here too,
you should clean off accumu lated salt coating from brake discs and
pads with a few careful applications of the brake=> & -
Corrosion
There may be a tendency for dirt to build up o n the brake pads and
corrosion to form on the dis cs if the car is no t driven regularly or only
for short trips with little use of the brakes.
If the brakes are not used frequently, or if corrosion has formed on
the discs, it is advisable to clean off the pads and discs by braking
firmly a few times from a moderately high speed=> &.
Faults in the brake system
If you should notice a sudden increase in brake pedal travel, then one
o f the two brake circuits may have failed==>& .
Low brake fluid level
Malfunctions can occur in the brake system if the brake fluid level is
too low. The brake fluid level is monitored e lectron ically .
Brake lining wear status
Brake lining wear may be checked by visual inspection of the condi­
tion of the brake pads through the openings in the wheel. If neces­
sary, the wheel may be removed for this inspection =>
page 339,
"Changing a wheel". ._.
Vehicle care Technical data

lillill.a._...:I:..: n~ t .::.e::::..::.: ll~igent technology ,_ _______________________________________ _
in. WARNING
• You should perform braking maneuvers for the purpose of
cleaning the brake system only if road condition s permit. Other
road u sers must not b e put at r isk - you may cau se an ac cident!
• Before d esc ending a steep gr ade , redu ce speed and shift t ran s­
mission into a lower gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or too often . This could
c ause the brake s to get hot and diminish braking efficiency.
• Do not "ride the brakes " by re sting your foot on the pedal when
you do not intend to brake. Thi s may caus e the brakes to overheat ,
premature wear and increa sed stopping di stance.
• Under certain climatic and operating conditions such as
pas sing through water, driving in heavy rain or after washing the
vehicle, the effectiveness of the brake s can be reduced . In winter,
ice can accumulate on the brake pads , linings , disc s and drums .
Carefully apply brakes for a test. Brake s will dry and ice coatings
will be cleaned off after a few careful brake applications.
• Driving for an extended period of time on salt -cov ered roads
without using your brakes can al so affect braking efficiency. Clean
off accumulated salt coating from brake d iscs and pads with a few
careful brake applications.
• If you damage the front spoiler , or if you install a different
s poiler , be sure the air flow to the front brakes is not obstructed.
Otherwise the brake system could overheat reducing the effective­
ness of the entire brake system.
• Failure of one brake circuit will impair the braking capability
resulting in an increased stopping distance. Avoid driving the
vehicle and have it towed to the nearest authorized Audi dealer or
qualified wo rkshop. •
Brake booster
The brake booster adds e xtra brakin g pow er .
The brake booster wor ks with vacuum pressure which is created on ly
w hen the en gine is ru nning =>& .
in. WARNING
• Never let the vehicle roll to a stop with the engine shut off .
• If the brake booster i s not working , for example when towing
your vehicle , or because the brake booster has somehow been
damaged , the b rake pedal must be p ressed considerably harder to
make up for the lack of booster assistan ce.
Functioning of Anti-Lock Brake System
(ABS)
AB S prevents the wheels from locking up under br aking.
T he ABS co ntribu tes effectively to vehicle co ntrol s ince it prevents t he
w hee ls from
locking when the b rakes are a pplied. This means t hat t he
veh icle rema ins steerable and is less likely to s kid .
W ith ABS you do not need to
pump the brake. Just hold the brake
pedal down .
However, do not expect the ABS to shorten braking distance u nder
all
circums tances. When driving on grave l or on newly fa llen snow on top
of icy su rfaces, braking dis tance may be even longer, therefore, under
these c irc umstances, it is especially important that you dr ive slowly
and w it h great care .
How the ABS system works
An automatic check is made when a speed of about 12 mph (20 km/h)
is reached . When this happens, a p umping noise can be hea rd. ._

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
If an individual wheel begins to rotate too slowly in relation to vehicle
speed and tends to lock, the ABS automatically reduces brake pres­
sure to prevent that wheel from locking .
Thi s automatic adjustment process wi ll cause a
slight vibration of
the brake pedal and some noises to alert you that vehicle speed must
be adapted to existing road and traffic conditions.
_& WARNING
Although the ABS is very effective, always remember that braking
capability is limited by tire traction. Always adjust your driving
speed according to the road and traffic conditions. Do not let the
extra safety afforded by the ABS tempt you into taking extra risks.
The ABS cannot overcome the laws of physics .
(I) Tips
• If ABS is not funct ioning properly, a warning light will come on .
See ~
page 19.
• If a fault occurs in the ABS, the EDL is also not functioning. This is
ind icat ed by the ABS warning light. •
Brake assistant
The brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power and
thus to achieve a shorter stopping distance.
If the driver presses the
brake peda l very qu ickly , the brake assistant automatically boosts the
braking force to the maximum level, up to the point where the anti­
lock brake function (ABS) intervenes to stop the whee ls from locking.
You should then keep the brake pedal pressed until the vehicle has
braked to the required speed. The brake assistant switches itself off
as soon as you release the brake pedal.
Controls and equip­ ment Safety first Vehicle operation
Automatic full braking
assist
This function allows full braking in spite of high brake pedal forces
(e .g . when the brakes are severely stressed because the veh icle is fully
loaded). The driver notices this function through a reduction of pedal
force and increased pedal travel. When the brake pedal is released,
full braking assist switches off again automatically.
If there is an ABS failure, the brak e assistant and automatic full
braking assist are not available.
Th e brake assistant will not be operative if there is a ma lfunction in
the ABS .
_& WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow the vehicle ahead of you too closely. Increased risk of an
accident cannot be compensated for even by the brake assistant ,
so always maintain a safe speed.•
Servotronic® -advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortable and safe steering response exactly matched to the
vehicle speed .
Power steering will not work if the engine is off. As a result , the
steering wheel will be hard to turn .
Th e power steering fluid level is checked during the scheduled main­
tenance services.
Vehicle care Do-it-yourself service Technical data

Intelligent technology
'-------------------------------------------------
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remote key or power seat adjust­
me nt, may not be available. The convenience functions will be avail­
able again when you turn on the ignition and start the engine.
With the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged.
If start ing capability is jeopardized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes .
The warning indicates that the system will be turned off automati­
cally after 3 minutes. If you wish to continue using the functions, you
have to start the engine.
With the engine running
Although electrical energy is generated when the vehicle is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
To bring the energy balance back into equilibr ium, consumers which
require especially large amounts of energy are temporarily cut back
or switched off. Heat ing systems in particular require a great deal of
energy. If you notice, for example, that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be available again as soon as
the energy balance has been restored .
You will also notice that engine idle speed has been increased
slightly. This is norma l and not a cause for concern. By increasing
engine idle speed the additional energy required is generated and the
battery is charged.
Driver notification in the instrument
cluster display
If battery power drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
with the following driver message:
i...-3 Low battery charge: battery will be charged while driving
This notification reminds you that the starting capability of the
engine may be limited. As soon as you start driving again, the battery
w ill be recharged and the notification will go out.
Driver notification appears and goes out again
If th is driver notification appears after the ignition is turned on or
whi le driving and it goes out again after a while, the battery has been
adequately recharged.
Driver notification appears and does not go out
again
If this driver notification appears after the ignition is turned on o r
wh ile driving and does not go out again, the battery's state of charge
is not in the optimal range. Starting ability is restricted. Have the
battery checked as soon as possible by an authorized Audi dealer or
qualified workshop. •

Driving off road
- Activate the ESP offroad mode=> page 252 as needed .
- Use the
hill descent control => page 253 when driving
down steep sections on hills.
Unpaved roads and offroad
Drive slowly on unfamiliar roads and unknown offroad sections, and
loo k out for unexpected obstacles (e .g. potho les, rocks, t ree st umps,
etc.).
T o prevent the vehicle from bo ttoming and avoid dam age to the
underbody, you should drive straight across severe bumps in the
gro und with on ly one s ide of the vehicle so tha t on ly two of your
wheels cross the bumps.
Drive brisk ly throug h sandy or marshy offroad sections and do not
stop, if at all poss ible.
Driving through water
Your vehicle ca n drive at maximum wal king speed thro ugh stand ing
water if the gro und is firm enough . The
maximum water depth is
1 9. 7 in o r 500 mm (ve hicles w it h out air spr ings) or 2 1.1 in or
535 mm (vehicles with Adaptive Air Suspension*, at high level 2).
Driving on a slope
If you ever find yourself not able to climb a slope, do not try to t urn
around, drive bac k dow n in
rever se . Ot herw ise, you run t he ris k of
tipping over .
If the vehicle threaten s to tip over when driving a cross a slope , you
must immediately steer downh ill in the direction of the slope .
Do not park your vehicle on steep slopes or gra des .
T o red uce the risk of tipp ing ove r, d rive on s lopes in t he di re ct io n of
the downward slope (fall line) -
not crosswise .
Driving on snow-covered ground
T he standard tires fitted to your vehicle are not snow ti res. So you
should mo unt wheels with snow t ires in good t ime where winter road
conditions prevail. Before driving on unp lowed stretches o f deep snow, install tire chains
. For tech nica l reasons, t ire chains may only
be ins talle d on the re a r wheels - never on the front whee ls.
& WARNING
After driving through water , mud, slush, etc. , the brake s may be
slow to take effect because of wet brake rotors and pads.
Dry the
brake s first by braking carefully to re store the full braking effe ct.
0 Note
Vehicle components such as the engine, trans mission, s uspension or
electrical system can be severely damaged by dr iv ing through water.
W Tips
• Check the dept h of the water before dr iv in g through it.
• Do not stop the vehicle, dr ive in reverse or sw itch the e ngine off
when driving through water .
• Keep in m ind th at on coming vehicles m ay cre ate w aves t hat ra ise
the water level and make it too deep for your vehicle to drive through
safe ly .
• Avoid dr iving through sa lt water because it ca n cause corrosion .•

pressure label is located o n the dr iver's side B-pillar. Inflate trailer
t ires to tra ile r and t ire ma nufacturers' spec ifications.
Lights
T he headl ight settings shou ld be chec ked with the tr ailer attached
before driving off. Check to make sure both vehicle and trailer lights
are wo rking properly.
Safety chains
Be sure tra ile r safety cha ins are p roperly connected from the t rai ler
to the hitch on the vehicle. Leave enough slack in the chains to perm it
tu rning corners . When you install sa fe ty ch ains, ma ke sure they will
not drag on the road when you are driving.
T he chains should cross under the trai ler tongue to prevent it from
dropping in case of separation from the h itch .
0 Note
If you are goi ng to tow a trai ler , you must activate the trai ler opera­
tion mode =>
page 180, "Towing a trailer". •
Driving instructior,s
Driving with a trailer always requires e xtra care and
consideration.
To obtain the best possib le handling of ve hicle a nd trailer ,
please note the following :
- Do not tow a loaded trailer when your car itself is not
loaded.
- Be especia lly careful when pass ing other vehicles .
- Observe speed limi ts.
- Do not drive at the maximum pe rmissible speed.
Controls and equip­
ment Safety first Vehicle operation
- Always apply brakes early.
- Mo
nitor the temperature gauge.
Weight distri but ion
T owing a loaded trailer with an empty car results in a highly unstable
distribution of we ight . If t his cannot be avoided , drive at very low
speeds only to avoid the risk of losing steering control.
A "balanced" rig is easier to operate and control. This means that the
tow veh icle shou ld be loaded to the extent poss ible and permissib le,
wh ile keeping the tra ile r as lig ht as poss ible unde r the ci rc u mstances.
Whe never possible, transfer some cargo to the luggage compart ­
me nt o f the tow vehicle while observing tongue load requirements
and vehicle loading considerations.
Speed
The higher the speed, the more d ifficult it becomes for the driver to
control the r ig . Do not dr ive at the maxim um permiss ible speed .
Reduce your speed eve n more if load, weather or w ind conditions are
unfavorable -particular ly when going downhill.
Reduce vehicle speed
immed iately if the tra ile r shows the slightest
sign of swaying.
Do not tr y to stop the s wayi ng by a ccele rating .
Observe speed lim its. In some areas, speeds for veh icles towing
trailers are lowe r than for regular veh icles .
Always apply brakes early. When driving downhi ll, shift into a lower
gear to use the engine brak ing effect to slow t he ve hicle . Use of the
brakes alone can cause them to overheat and fa il.
Coolant temperatur e
The coo lant temperature gauge=> page 10 must be observed care­
fu lly. If the needle moves close to the upper end of the sca le, reduce
speed immediately and/or turn off the air conditioner.
If the coo lant temperature warning light in the instrument clus ter
starts flash ing
- F- , pull off the road, stop and let the engine idle for
about two m inutes to prevent hea t buil d-up.
Vehicle care Do-it-yourself service Technical data

labeled ask the station operator what fuel is being dispensed befo re
fi lling up yo ur vehicle.
Service stations offering Diesel f uel are generally loca ted on truck
routes or major hig hways. Directo ries of Diese l fue l stations are
usually availab le at Diese l fuel stations.
Some states in t he USA require permits to purchase Diesel fuel. Check
w ith your State Mo tor Vehicle De partment.
Diesel fuel may not be available outs ide the USA and Canada. Be sure
to check before trave ling to othe r countries .
Winter operation
At t empe ratures below 20° F (- 7° C), Die sel fue l No . 2 l oses its flu idity
due to wax separation, wh ich may clog the fuel filter or tank fi lter and
keep the engine from running .
T o help t he filte r from be ing clogged by wax, the fue l fi lter in your
vehicle is automatically preheated. Preheat ing the fuel f ilter makes
operat io n of yo ur vehicle possib le with Die sel fuel No. 2 dow n to -
10° F (-24° C).
If you expect temperat ures below 5° F (-1S° C) ask yo ur fuel dealer
whether their Diesel fuel No . 2 is suffic iently w interized for the
prevailing and expected temperat ures.
If not winterized or insuff ic ie ntly w inte riz ed Diese l fuel has already
thickened to the extent that the engine w ill not start, warm the
vehicle up by leaving i t in a heated garage.
It is normal that the eng ine noise level (dieseling) is louder during the
warm-up period in winte r. It is also normal when whitish -blue smoke
comes out of t he tailpipe afte r start ing and du ring warm-up. The
amount of smoke depends on the outside temperature .
Do not let your Diesel engine idle unnecessa rily af ter a co ld start.
Dr iv ing off slow ly w ill shorten the warm-up per iod.
Safety first
Fuel supply and filling your fuel tank
& WARNING
• Never use "starting as sist flu ids ." Th ey may be potentially
explo sive or cause a "run-away " engine condition . Thi s could
re sult in s eriou s engine damage and per sonal injury .
• Never u se fuel line anti -freeze off ered fo r ga soline engine s.
0 Note
• Your D iesel eng ine has been spec ifically desig ned to ope rate on ly
on Ultra Low Sulfur Diesel fue l. Therefore, never use home heating o il
or reg ular gasoline . The properties of these fuels may cause serious
damage to the fuel injection system and to t he engine . Using these
fue ls can cause expens ive eng ine repairs and will also adversely affect
your New Vehicle Lim ited Wa rranty.
• If Diese l fuel shou ld get on any rubber hose, it must be wiped off
immediately. Then wash the contaminated hose port ion w ith soap
and warm water . Do not allow Diesel fue l to remain on connecting
hoses. They may deve lop leaks and cause se rious damage. •
Fuel tank
Fuel filler neck
The f ue l fi ller neck is located o n the rig ht rea r side panel behind t he
fue l filler flap.
If the power locking system shou ld fai l, you can st ill open the flap
ma nually- for deta iled instructions see:::::>
page 292.
You can find the fue l tank capacity of your veh icle in
Technical Data
:::::, page 3 63.
The label on the inside of t he fuel filler flap tells you the correct fuel
for your veh icle. For more informat ion about fuel specifications, see
:::::>
page 287 . _,,
Vehicle care Technical data

Fuel supply and filling your fuel tank
When the minimum Ad Blue level has been reached, you must add at
least 1 gallon (3.8 liters) . This is equal to two bott les from the refill
conta iner available from authorized dealers=>
page 294. This is the
minimum amount required to ensure the system detects the refilling
and to start the engine .
Filling incorrectly
If the Ad Blue tank was filled with a different fluid than Ad Blue and
the system detects that it is incorrect, you will be notified as follows:
1 , I 110 J Check AdBlue ! No restart
in 600
miles (1000 km)
!
This message appears when it is only possible to drive the distance
indicated in the driver information system . You will also hear a
warning signal. Drive to the nearest qualified workshop to have the
malfunction repaired. Otherwise the engine will not start again if you
stop it once the distance indicated has been driven .
Ad Blue ,0 0 mi (0 km) Check Ad Blue ! No restart !
This message appears if the system detects it was filled incorrectly.
You will also hear three warning signals in a row. Drive immediately
to the nearest qualified workshop to have the malfunction repaired.
Otherwise you will not be able to start the engine again once you stop
it .•
A pp lies to vehicles : w ith diesel engine
Filling AdBlue
A special refill bottle must be used to fill the Ad Blue.
Fig . 227 Right rear
vehicle side: removing
the AdBlue cap
Fig . 228 Ad Blue filler
tube: inserting the refill bottle
The filler flap automatically unlocks or locks when the central
locking system is operated. The Ad Blue filler tube is located
at the right near the diesel filler tube.
Opening the filler tube and adding AdBlue
-Press the left side of the fuel filler flap to open it
=> page 290, fig. 222 -arrow- .
- Turn the cap counterclockwise with the lug wrench from
the vehicle tool ki t to remove it~ fig. 227.
~