AUDI Q7 2017 Owner´s Manual

u (0 ...... N r--. N ...... 0
0
:E <t
This message appears when there is only enough
Ad Blue left to drive the distance indicated in the
i nstr ument cluster . Fill the Ad Blue .
• Refill with at least x qt (l) AdBlue. No en·
gine start in
x mi (km ). See owner 's manual
This message appears when there is only eno ugh
Ad Blue lef t to d rive the distance indicated in the
i nstr ument cluster. Fill the Ad B lue. O therwise
the engine will not start again if you stop it once
the distance indicated has been driven .
• Refill with at least x qt (l) AdBlue . Engine
start n ot possibl e. See owner 's manual
This message appea rs when the Ad Blue tank is
empty. Fill the AdB lue. Otherwise you will not be
ab le to s tart the engine aga in once yo u stop it.
The AdBlue must be refilled when the amount in
the tank has reached the minimum level
¢ page 319, Preparation.
Incorrect filling /system ma lfunction
A message appears if the Ad Blue tank was filled
with a fluid other than AdBlue and the system
has detected that the tank was f illed incor rectly,
or if there is a system malfunction .
II Ad Blue: malfunct ion ! No engine start in
x mi (km ). Se e owner's manual
This message appears when it is only possible to
drive the d istance ind icated in the instrument
cluster . Drive to the nearest author ized Audi
dealer o r authorized Aud i Serv ice Facility to have
the malfunction corrected . Otherwise the engine
w ill not start again if you stop it once the d is­
tance indicated has been dr iven .
• Ad Blu e: malfunction! No engine start poss i­
ble . See owner' s manual
This message appears if the system has detected
that the tank was filled incorrectly or that there
is a malfunction. Drive immediately to the near ­
est autho rized Aud i dea ler or authorized Aud i
Service Facility to have the malfunction correct­
ed. Othe rwise you will not be able to start the en­
g ine again once you stop i t.
Checking and Filling
Preparation
Applies to: vehicles with selective cata lytic reduction
Fig. 263 Right rear s ide o f the ve hicle: removing t he Ad Bl­
u e cap
The Ad Blue tank ope ning is located near the d ie­
se l tank opening. Add at least the amount of
AdB lue shown in the instrument cluster display.
This is the minimum amount required to ensure
the system detects the refilling and to start the
engine. You can add a maximum of 6.3 gallons
(24 L).
Requirement: the request to add Ad Bl ue must
appear in the instrument cluster display.
.. Switch t he ignit ion off .
.. Open the tank filler door¢
page 316 .
.. Turn the ta nk filler neck cap to the left to re­
move
¢fig . 263 .
.. Ref ill Ad Blue us ing a pump nozzle ¢ page 320,
a canister ¢ page 320 or a bott le ¢ page 320 .
A WARNING ,~ -Ad B lue can irritate the s kin, eyes and respira­
tory sys tem.
If th ere is contact with t he flu id,
flus h immed iate ly w ith plenty of wa ter. Con­
su lt a phys icia n if necessary .
(D Note
- Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not m ix any addi­
tives with the Ad Blue and do not dilu te it
w ith wate r.
- Do not add AdBl ue to the diesel tank or add
diese l fuel to t he A d Bl ue tank. Do not s tart
t he engine un de r any c ircumst ances if th e
wrong fuel is filled in the tan k. There is a
319

Checking and Filling
risk of damaging the fuel tank system and
the engine. See an authorized Audi dealer or
authorized Audi Service Facility for assis­
tance.
- Ad Blue attacks surfaces such as painted ve­
hicle components, plastic and carpet. Re­
move the fluid as quickly as possible with a
damp cloth and plenty of cold water. If the
Ad Blue has already crystallized, use warm
water and a sponge . AdBlue residue that is
not removed will crystallize and can damage
the affected surface.
- Do not store refill bottles or canisters per­
manently in the vehicle. If the container
leaks, the escaping AdBlue could damage
the vehicle interior.
- Do not allow AdBlue to come into contact
with clothing. If there is contact with the
fluid, flush immediately with plenty of wa­
ter.
(D Tips
Follow the Ad Blue manufacturer 's instruc­
tions for use and storage.
Refilling AdBlue using a pump
Applies to: veh icles with selective catalyt ic reduction
.,. Open the tank filler door ¢ page 316, fig. 259.
.,. Turn the tank filler neck cap to the left to re­
move
¢ page 319, fig . 263.
.,. Refill Ad Blue until the pump noz zle switches
off for the first time
¢ (D .
.,. Close the filler tube¢ page 321, Completing
AdBlue refill
(fl Note
- The pump nozzle handle must be pointing downward when filling. Otherwise the pump nozzle will not switch off automati­
cally
¢ Q) in Preparation on page 319.
- Do not continue filling once the pump noz­
zle automatically switches off for the first
time. The AdBlue tank system could be
overfilled and leak Ad Blue
¢(D in Prepara­
tion on page 319.
320
Refilling AdBlue using a canister
Applies to: vehicles with selective catalytic reduction
®
+®
Fig. 264 Caniste r w ith attachable hose
.,. Remove the cover from the refill canister¢ A
in Preparation on page 319, ¢ (Din Prepara ­
tion on page 319 .
.,. Secure the end of the hose (Don the opening in
the canister @by turning the hose to the right.
.,. Remove the cap@from the other end of the
hose @ .
.,. Position the end of the hose @on the filler
neck in the vehicle and turn the hose to the
right to tighten it .
.,. Lift th@ canist er up and then tip it. Continu e
holding the canister in a tipped position until it
is empty or until no more fluid flows into the
tank.
.,. Remove the canister and close the filler tube
¢ page 321, Completing AdBlue refill .
(D Note
Only use refill canisters that are approved for
your vehicle. Using other systems can cause Ad Blue to leak .
(D Tips
-An authorized Audi dealer or authorized
Audi repair facility can tell you which refill
canisters are approved for your vehicle .
- A permitted refill canister contains approxi­
mately 1.3 gallons (5 liters) of Ad Blue.
Refilling AdBlue using a bottle
Applies to: vehicles with selective catalytic reduction
.,. Remove the cap from the refill bottle ¢ A in
Preparation on page 319, ¢(Din Preparation
an page 319. ..,.

u co .... N r-... N .... 0
0
:E: '<t
• Position the bottle on the filler tube and tu rn
the bottle clockwise unti l it stops turning.
• Press lightly against the bottom of the bottle
to empty it. Continue pressing the bottom of
the bottle until it is empty or until f luid stops
flowing into the tank .
• Remove the bottle and seal the filler neck
~ page 321, Completing AdBlue refill .
(D Note
Only use refill bottles that are approved for
your veh icle. Us ing other systems can cause
Ad Blue to leak.
- You can obta in refill bottles from an author­
i zed Audi dealer or author ized Audi Service
Fac ility.
- A perm itted refill bottle contains approxi­
mately 0.5 gallon ( 1.9 liters) of Ad B lue.
Completing AdBlue refill
Applies to: vehicles with selective catalytic reduction
Closing th e filler neck
• Turn the Ad Blue cap to the right on the filler
tube u ntil the cap clicks into p lace
c;> .&. in
Preparation on page 319,
c;> (D in Preparation
on page 319 ..
• Then press on the left side of the tank door un -
ti l it latches.
After filling
The vehicle must be driven so that the system
recognizes t hat the Ad Bl ue was refilled. This can
take severa l min utes .
• If there was no Ad Blue left in the tank and a
range of O mi (0 km) was shown in the display ,
switch the ign ition on for about 30 seconds be­
f ore star ting the engine .
(D Tips
Ad Blue in the tank can free ze at very low tem­
pe ra tures. If this happens, the system will
no t detect t hat the Ad Bl ue was refilled and i t
wi ll continue to inform you of the low Ad Blue
Ch eck ing and Filling
level. The message t urns off as soon as the
tank thaws out again .
Emissions control
systems
Catalytic con verter
Applies to: vehicles with gasoline engines
T he vehicle may only be driven with un leaded
gasoline, otherwise the catalytic converter will be
destroyed.
Never drive until the tank is compl ete ly empty .
The irregu lar supply of fuel that resu lts from that
can cause eng ine misfires. Uncombusted fuel will
enter the exhaust system, which can cause over­
heating and damage to the catalytic converter .
Diesel particulate filt er
Applies to: vehicles with diesel engines
The diese l particu late filter filters near ly all of
the soot particles out of the exhaust. The filter
cleans itself automatically under norma l driving
condit ions. If the filter cannot clean itself (for ex­
ample, because you are only driving short distan ­
ces), the filter becomes clogged with soot and
the
1\1 i ndicato r light for the diese l part iculate
filte r tu rns on
c;> page 30.
_& WARNING
The tempera ture of the exhaus t sys tem is
high, bot h when driv ing and a fter stoppi ng
the engine.
- Never tou ch the e xhaust tail pipes once they
have become hot. This cou ld res ult in burns .
- Do not par k your veh icle over flamm ab le
materia ls such as grass or leaves because
the high temperature of the emissions con­ trol system (catalytic converter or diesel particu late filter) cou ld start a fire.
- Do not app ly underbody protectant in the
exhaust system area, beca use this increases
the risk of f ire.
321

Check ing and F illing
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
Fo r wo rk in th e engine compa rtmen t, s uch as
c h ec kin g and filli ng flu id s, th ere is a risk of in­
j u ry, sc aldin g, ac cide nts, a nd b urn s. For this
rea son, foll ow all the warning s and gener al
s a fe ty p recaution s pr ov ided in the f ollow ing in·
f o rm ation . Th e en gine c omp artmen t is a dan ­
ger ous are a.
¢ ,&.
_& WARNING
- T urn the engine off.
- Switch the ign ition off .
- Set the parking brake .
- Select the P selector lever pos ition .
- let the engine cool down.
- Never open the hood when there is steam or coolant escaping from the engine compart­
ment, because there is a risk that you could
be burned . Wait until no steam or coolant is
escaping .
- Keep ch ildren away from the engine com­
partment .
- Never spill flu ids on a hot engine. These flu­
ids (such as the anti -freezing agent con ­
ta ined in the coolant) can ignite .
- Avoid short circu its in the electrical system .
- When working in the engine compartment,
remember that the rad iator fan can sw itch
on even if the ignition is switched off, which
increases the risk of in jury .
- Never open the cap on the coolant expan­
sion tank when the eng ine is warm . The
cooling system is under pressure.
- To protect your face, hands, and arms from hot steam or coolant, cove r the cap with a
large cloth when opening.
- Do not remove the engine cover under any circumstances . This increases the risk of
burns.
- If tests need to be performed w ith the en­
gine running, there is additional danger d ue
to moving components (such as the ribbed
322
be lt, alternator and radiator fan) and from
the high-voltage ignition system.
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the engine compartment) if the veh i­
cle is stat ionary but the eng ine is running
and a gear is engaged . Otherwise, the veh i­
cle will start to move immediately and this
could result in an acc ident .
- Pay attent ion to the following warnings
when work on the fue l system is required:
- Do not smoke .
- Never work near open flames .
- Always have a working fire extinguisher
nearby
- All work on the battery or elect rical system
in your vehicle can result in injuries, chemi­
cal b urns, acc idents or burns . Because of
this, all work must be performed
onl y by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk o f electric shock and in ­
jury, never touch the following components
when the engine is running or is being start•
ed:
- Ign ition cable
- Other components in the electronic high -
vo ltage ign ition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake firs t and then se lect
the P selector lever position.
- Always proceed w ith extreme caution so
that clothing, jewelry or long hair do not become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginn ing
work and do not wear clothing that can hang down into the engine .
- Lim it your exposure to exhaust and chemi­
cals to as short a time as possible
¢ .&. .
A WARNING
California Proposition 65 Warning:

u (0 .... N r--. N .... 0
0
:E <t
-Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts , terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
(D Note
When filling fluids, be sure not to mix the flu­
ids up. Otherwise severe ma lfunctions and en­
gine damage will occur.
@ For the sake of the environment
You shou ld regularly check the ground under
your vehicle in order to detect leaks quickly . If
there are visible spots from oil or other fluids, bring your vehicle to an authorized Audi deal­
er or author ized Audi Service Facility to be
checked.
Opening and closing the hood
The hood is released from inside the vehicle.
Fig. 265 Drive r foo twe ll: release leve r
Checking and Filling
Fig. 266 Unloc ked hood : lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged .
Opening the hood
"With the driver's doo r open, pull the lever be ­
low the instrument panel in the direction of the
arrow
q fig . 265 .
" Ra ise the hood slightly ¢.&_ .
" Press the lever
q fig. 266 in the direct ion of the
arrow. This releases the hooks .
"O pen the hood .
Closing the hood
" Push the hood down until you override the
force of the struts.
" Let the hood fall lightly into the latch.
Do not
press
it in. ¢ .&_ .
A WARNING ,..___
-Never open the hood when there is steam or
coo lant escaping from the engine compart ­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping .
- For safety reasons, the hood must always be
closed securely while driving . Because of
this, always check the hood after closing it
to make sure it is latched correctly . The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched
while you are driving, stop immediately and
close it, because driving when the hood is
not latched increases the r isk of an accident . .._
323

Checking and Filling
-If the hood is not latched completely, it
could fly up while you are driving and ob­
struct your vision.
Engine compartment overview
The most important check points.
Fig. 267 Typ ical location of the reservoir and the engine oil filler opening
@ Jump start point(+) under a cover,(-) with
hex head screw
c;, page 331 qpage 372
@ Coolant expansion tank (-L) ~ page 328
@ Engine oil label * with VW standard
,=;, page 324
© Engine oil filler opening (9:::r.) c;, page 326
® Brake fluid reservoir ((0)) c;, page 329
® Washer fluid reservoir (W) c;, page 331
The coolant expansion tank and the engine o il
filling opening
c;, fig . 267 (items @and @) may
be located in different places depending on the
engine design.
324
8,_ WARNING
Read and follow all WARNINGS befo re check­
ing anything in the engine compartment
c;, page 322.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci ­
fications.
The serv ice interval d isplay i n the instrumen t
clus ter of your vehicle will inform you when it is
time for an o il change . We recommend that you
have your oi l changed by an author ized Audi Serv-
ice Advisor. ..,_

u co ...... N r-... N ...... 0
0
:E: '<t
If you must add oil between oil changes, use an
oil that matches the Audi oil quality standard listed on the st icker. The sticker is located at the
front of the engine compartment
c> page 324,
fig . 267.
Audi re comm end s
Ocastrot /[g/j;t{E'g Frtw.::<.. ·-:dr,,JA.L
A ud i recommends Longlife h igh perform ance
e ngin e oil from Audi Genui ne Part s
Using the proper engine oil is important for the
functionality and service life of the eng ine. Your
engine was factory -filled with a high-quality oil
which can usua lly be used throughout the entire
yea r.
Note
Your Limited New Vehicle Warranty does not
cover damage o r malfunctions due to failure
to follow recommended maintenance and use requirements as set fo rth in the Aud i Owner's
Manual and Warranty
& Maintenance booklet.
- Use only a high q ual ity eng ine oil that ex-
pressly complies with the Aud i oil q uality
standard specified for your vehi cle's engine .
Using any other oil can cause serious engine
damage .
- Do not mix any l ubricants o r other additives
into the engine oil. Doing so can cause en­
gine damage.
(D Tips
If you need to add oil and there is none availa ­
b le that meets the Audi oil quality standard
your eng ine requires, you may add a total of
no more than 0.5 qt (0.5 l) of a h igh-quality
"synthet ic" o il that meets the following speci­
fications .
- Vehicles with gasoline eng ine: ACEA A3 or
API SM with a viscosity grade of SAE OW-30,
SAE 5W -30 or SAE 5W-40 .
- Vehicles with d iesel eng ine : ACEA C3 or
API CF with a v iscosity grade of SAE OW-30
or SAE 5W -30 .
- For more information about engine o il that
has been approved for your vehicle, please
contact e ither you r authorized Audi dea le r
or A udi C ustome r Relat ions at
Ch eck ing and Filling
1 (800) 822 -2834 or visit our web site at
www.audiusa .com or www .audicanada .ca.
Engine oil consumption
The engin e in your v ehicl e dep ends on an ad e­
quat e amount of oil to lubricate and cool all of
its moving parts.
In order to provide effect ive lub rication and cool­
ing of inte rnal engine components, all inte rnal
combustion engines consume a certain amount
of oil. Oil consumption varies from eng ine to en­
gine and may change significantly over the life of
the engine. Typ ically, engines w ith a specified
break -in period (see
c> page 79) consume more
o il dur ing the break-in per iod than they consume
after oil consumption has stabilized .
Under normal cond itions, the rate of oil con­
sumption depends on the qua lity and viscos ity of
the oil, the RPM (revolutions per m inute) at
which the engine is operated, the amb ient tem­
perature and road condi tions. Further facto rs a re
the amo unt of oil di lution from water co ndensa­
tion or fue l resid ue a nd the oxidation level of the
oi l. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
time unt il replacement of worn components may
become necessary.
With a ll these variab les coming into play, no
standard rate of oi l consumption can be estab­
lished or spec ified . There is no alternative to reg­
ular and frequent checking of the oi l level, see
Note .
If the y ellow engine oil leve l warning symbo l Bl
in the instrument cluster lights up, you should
check the o il level as soon as possible
c> page 326. Top off the o il at your earliest con­
venience
c> page 326 .
A WARNING
--Before you check anyth ing in the eng ine com-
partment, always read and heed all WARN­
I NGS
c> .&. in Working in the engine compart-
ment on page 322.
Ill>
325

Check ing and F illing
CJ) Note
Driving with an insufficient oil level is likely to
cause severe damage to the engine .
@ Tips
-The oil pre ssure warn ing display. i s not
an ind icato r of the oil l evel. Do not rel y on
it. In stead , che ck th e oil le vel in your e n­
gi ne a t regul ar int ervals, prefe rably e ach
t ime you re fuel , and al ways befo re go ing
on a long trip .
-If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you consult an authorized Aud i
dealer to have the cause of your concern properly d iagnosed . Keep in mind that the
accurate measurement of oil consumpt ion
r equi res great ca re and may take some
time. An authorized Audi dealer has instruc­
tions about how to measure oil consump­
tion accurately.
Checking the engine oil level and adding
engine oil
The engine oil level can be checked in the Info­
t ainmen t sys tem
F ig . 268 Engin e co mpartme nt: e ngine o il fille r ope ning
c ove r
Checking th e engine oil l evel
-Park t he vehicle on a leve l surface .
- Sh ut the engine off when it is warm.
0 N
-N
>< (X) IX)
- Switc h only the ignition back on. Wa it approxi-
mately two minutes so that the engine oil can
flow back into the oil pan.
326
- Select in the Infotainment system: the !MENUI
button > V ehicle > l eft control button > Se rvice
& ch ec ks > Oil level.
- Check the oil level in the Infotainment system
disp lay . Add engine oi l if the bar in the oil level
indicator is just before "min".
Adding engine oil
Fo llow the safety precautions ~ .&. in Working in
the engine compartment on page 322.
- Stop the engine and open the hood
~ page 323.
-Unscrew the cap 9=;,1 on the engine oi l filling
open ing ~
fig. 268, ~ page 324.
-Carefully add 0.5 quart (0.5 liter) of the correct
oil ~
page 324 .
-Close the eng ine oil filler opening cap.
- Close the hood, restart the ignit ion after two
m inutes and read the current o il level in the In ­
fotainment system.
&_ WARNING
- When adding oil, do not let oil dr ip onto hot
engine components. This inc reases the risk
of afire.
- You must secure the cap on the oil fi ller
open ing correctly so that oil does not leak
ou t onto the ho t engine and exhaust system
when the engine is running, beca use this is
a fire hazard .
- Always clean skin thoroughly if it comes into
contact with engine oil.
(D Note
-The engine o il level must not be under the
" min" marking, because this incre ases the
risk of engine damage.
- If the message
II Plea se redu ce oil lev el
appears, there is too much oil in the eng ine
and there is a risk of damaging the cata lytic
converter and engine. Do not start the en­
gine . Contact an authorized A udi dealer or
authorized Audi Service Fac ility to have ex­
cess engine o il extracted if necessary .
- Do not mix any addit iona l lubricants into
the engine oil. Damage caused by such add i­
t ives is not covered by the warranty.
...

u co ...... N r-... N ...... 0
0
:E: '<t
@ For the sa ke of the env ironment
- Oil should never enter the sewer system or
come into contact with the ground.
- Pay attention to legal requirements when
disposing of empty oil containers.
(D Tips
- The oil level indicator in the display is only
an informational disp lay. If the oil leve l is
too low, a minimum oil warning appears in
the instrument cluster. Add oil and close
the hood. The current oil level is displayed
in the instrument cluster the next time the
ignition is switched on .
- The engine oil consumption may be up to
0.5 quart/600 miles (0.5 liter/1,000 km),
depend ing o n driving style and operating
cond itions. Consumption may be higher
during the first 3,000 miles (5,000 km). Be­
ca use of th is, the engine oil level m ust be
checked regularly.
It would be best to check
each time you ref uel your vehicle and before
l ong drives.
Changing the engine oil
We recommend that hove your oil changed by an
authorized Audi dealer or a qualified service sta­ tion .
Before you check anyth ing in the engine compart­
ment,
al ways r ead and h eed all WARNIN GS~ &
in Working in the engine compartment on
page 322.
The engine oil must be changed according to the
intervals specified in your Warranty
& Mainte­
nance booklet . This is very important because the
lubricating properties of oil diminish gradually
during normal vehicle use.
Under some circumstances the engine oi l should
be changed more frequently. Change oil more of­
ten if yo u drive mostly short distances, operate
the vehicle in dusty areas or under predominant ly
stop-and-go traffic condit ions, or have your vehi­
cle where temperatures remain below freezing
for extended periods .
Check ing and Filling
Detergent additives in the oi l will make fresh oil
look dark after the engine has been running for a
short time . This is normal and is not a reason to
change the oi l more often than recommended.
Because of the problem of proper disposal, along
with the specia l tools and necessary expertise re­
quired, we strongly recommend that you have
your o il changed by an authorized
Audi de aler or
a qual ified service stat ion.
If yo u choo se to ch ange your oil yo urself , please
note the following important information:
A WARNING "--
To reduce the risk of persona l injury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protection.
-
-To reduce the r isk of burns from hot engine
oil, let the engine cool down to the touch.
- When removing the oil drain plug w ith your
f ingers, stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.
- Drain the oil into a container designed for
this purpose, one large enough to hold at least the tota l amount of oil in your engine.
- Engine oil is poisonous. Keep it well out of
the reach of children.
- Continuous contact with used engine o il is
harmful to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water .
«I) Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adversely affect yo ur Audi limited New Vehi­
cle Warranty .
@ For the sake of the environment
-Before chang ing your oil, first make sure
you know where you can properly d ispose of
the used oil.
- Always dispose of used engine o il properly .
Do not dump it on garden soil, wooded
327

Checking and Filling
areas, into open streams or down sewage
drains.
- Recycle used engine oil by taking it to a used
engine oil collection facility in your area, or
contact a service station .
Cooling system
Coolant
The engine cooling system is filled with a mixture
of pur ified water and coolant addit ive at the fa c­
tory. This coolant must not be not changed.
The coolant leve l is monitored through the. in­
d icator light~
page 26. Howeve r, we do recom­
mend occasionally check ing the coo lant level
manually.
I f you must add coolant, use a m ixt ure of water
a nd coolant addit ive. M ixing the coolant additive
with d istilled water is recommended .
Coolant additive
The coolant addit ive is made of anti-freez ing and
corros ion protection agents. Only use the fo llow­
ing coolant add it ives. These additives may be
mixed w ith each other.
Coolant additive Specification
G13
TL 774)
G12++ TL
774 G
The amount of coo lant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant addi­
tive percentage is too low, the coolant can freeze
and damage the eng ine.
Coolant Freeze protec-
additive tion
Warm min .40% m in. -13 °F
reg ions max. 45% (-25 °()
Cold min. 50% max. -40 °F
reg ions max. 55% (-40 °C)
- Befo re the start of winter, have an author­
i zed Audi dealer or authorized A udi Se rvice
Fac ility check if the coolant additive in your
328
vehicle matches the per cen tage appropriate
for the climate . This is especially important
when driving in colder climates.
- If the appro priate coo la nt additive is not
availab le in an eme rgency, do not add any
ot her additive. You could damage the en­
gine. If this happens, only use water and re­
store the correct mixture ratio with the
specified coolant add itive as soo n as poss i­
ble.
- Only ref ill w ith new coolant.
- Radiator sealant must not be mixed with
the coolant.
Adding coolant
Fi g. 2 69 Engine compartment: re lease button on coolant
expansion tank
Observe the safety precautions ~.&, in Working
in the engine comportmen t on page 322.
Checking the engine coolant level
.. Park the vehicle on a level sur face .
.,. Switch the ignit io n off.
.,. Read the coolant level on the coolant expansion
tank
~ fig. 269.
.,. Th e coolan t level must be between the MIN and
MAX marki ngs when the engine in co ld. When
the engi ne is warm it can be sligh tly above the
MAX marking .
Adding coolant
Requirement: there must be a residua l amount of
coolan t in the expansion t ank
~CD -
.. Let the engi ne cool down .
.,. Place a clot h
over the coolant expansion tank
cap .