2017 AUDI A8 check engine

C)
_& WARNING
-The cooling system is under pressure. Do
not open the coolant expansion tank cap
when the engine is hot. This increases the
risk of burns .
- The coolant add itive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can sw itch
on even if the ignition is switched off, which
increases the risk of injury.
CD Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and
damage the engine. If this is the case, do not
continue driv ing. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
Brake fluid
N
N
-N
" co IXl
F ig. 262 Engine compartment: cap on brake fluid re servoir
Observe the safety precautions c:> &. in Working
in the engine compartment on page 2 71.
Checking the brake fluid level
" Read the brake fluid level on the brake fluid
reservoir
c:> page 2 74, fig. 259. The brake fluid
level must be between the MIN and MAX mark­
ings
c:> &_ .
~ The brake fluid level is mon itored automatically .
" N ...... 0 0 :r Checking and Filling
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service
Facility.
A WARNING
-
- If the brake fluid level is below the MIN
marking, it can impair the braking effect
and driving safety, which increase the risk of
an accident . Do not continue dr iving. See an
author ized Audi dealer or author ized Audi
Service Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system dur ing heavy braking.
This would impair braking performance and
driving safety, which increases the r isk of an
accident.
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
with VW standard 50114 or FM VSS -116 DOT 4.
CD Note
-If the brake f luid level is above the MAX
marking, brake f luid may leak out over the
edge of the reservoir and result in damage
to the vehicle.
- Do not get any brake fluid on the vehicle
paint, because it wi ll corrode the paint.
Battery
General warnings about batteries
Because of the complex power supply, all wo rk
on batter ies such as disconnecting, replac ing,
etc. should
only be performed by an authorized
Audi dealer or authorized Audi Service Fac il ity
c:> & .
The term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
Detailed warnings for the vehicle battery:
® Wear eye protection.
I.)._ Bat~ery acid is highly corrosiv~. Wear pro-
~ tect1ve gloves and eye protection. Ill-
279

Checking and Filling
Service interval display
The service interval display detects when your ve­
hicle is due for service.
The service interval display works in two stages:
-Inspection or oil change reminder: after a cer-
tain distance driven, a message appears in the
instrument cluster display each time the igni ­
tion is switched on or off . The remaining dis­
tance or time is displayed briefly.
- Inspection or oil change due: if yo ur vehicle
has reached an inspection or oi l change interval
or both intervals at the same time, the mes­
sage
Inspection due! or Oil change due! or Oil
change and inspection due!
appears briefly af­
ter switching the ignition on/off .
Checking service intervals
You can check the remaining distance or time un­
til the next oil change or next inspection in the
Car menu. To do this, select : the
ICARI function
but ton
> Car systems control button > Servicing
& checks > Service intervals .
Resetting the indicator
Your authorized Audi dealer or authorized Audi
Serv ice Facility will reset the serv ice interval dis­
p lay after performing serv ice.
If you have changed the oil yourself, you must re­
set the oil change interva l.
To reset the indicator, select : the
ICARI function
button
> Car systems contro l button > Servicing
& checks > Service intervals. Turn the control
knob downward to
Reset oil change interval and
press the control knob.
([) Note
-Only reset the oil change indicator if the oil
was changed .
- Following the service intervals is critical to
maintain ing the service life and va lue of
your vehicle, especially the engine. Even if
the m ileage on the vehicle is low, do not ex­
ceed the time for the next service.
282

Wheels
@ For the sake of the environment
Low tire pressure inc reases fuel consumption
and tire wear.
@ Tips
- The pressure of the spare tire * is not moni ­
tored.
- If t ires are re pla ced, the sensors/valves do
not need to be removed or rep laced . Ju st re­
placed the valve stem and, if necessary, the
valve and the wheel e lectron ics . If you have
quest ions, see your autho riz ed Aud i dea ler
or authorized Audi Service Facility.
Displaying tire pressures/temperatures
App lies to : 58 plus
Req uirement: the ign ition must be switched on .
.,. Select : the
ICARI function button > C ar s ystems
> Serv icing & checks > Tire pressure mon itor ­
ing
> Display tire pressures.
The current tire pressures are shown in green and
yellow numbers in the Infotainment system:
- Green : the current tire pressure and the speci­
fied tire pressure are approximately the same .
-Yellow: the c urrent tire press ure is too low
compared to the specified tire pressure.
The spe cified t ire press ure is the la st tire pres­
sure th at was s tored
c::> page 305.
No te that the tire pressure also depends on the
t emperature of the ti re . The ti re pressu re in­
creases as the engine becomes wa rmer wh ile
d riving.
& WARNING
R ea d and follow t he important information
and notes
c::> page 303 .
@ Tips
The tire pressure or tem per ature are not dis­
pl ayed in ada ptation mode. D ashe s·-.·- are
shown i n place of the press ure and tempera ­
ture .
304
-
Tire pressure loss
Applies to: 58 plus
Fig. 2 70 Dis pla y: ind icator light w it h a mess age
If the [I] ind icator light turns on, the pressure in
at least one tire is too low or new sensors were
not adapted:
RE indicator light s turn s on after turning the
ignition on
The tire pressure is too low compared to the
spec ified press ure .
.. Check and store the tire press ure(s) the next
time it is possible
c::> page 305.
RE indicator light turns on while dr iving
Wheels with new sensors we re not adapted or
the tire p ressure has reached a critica l level com­
pared to the specif ied pressure.
.. Avoid unnecessary s teering and brak ing maneu-
vers .
.. Adapt your driving sty le to the s ituation.
.. Stop as soon as possib le and check the tire(s).
.. If it is possib le to cont inue dr iv ing, see an au-
thorized Audi dealer or authorized Audi Service
Facility immediately and have your tire(s) re ­
pai red or rep laced .
& WARNING
Read and f ollow the impo rtant inform ation
and notes
c::>p age 303.
-

0 co .... N ,..... N .... 0 0 :c ' Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
ope rations.
Starting by pushing or
towing
CD Note
Veh icles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle.
If the engine shou ld fail to start because of a dis ­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumpe r cables to start the engine.
Jumper cables
Use only jumper cables of suffic iently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated term inal
clamps which are dis tinct ly marked:
plus (+) cable in most cases colored re d
minus( -) cable
in most cases colored black.
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe
handling of your vehicle's battery.
- Always shield your eyes and avo id leaning
over the battery whenever poss ible.
- A dead battery can freeze at temperatures
around 32 °F (0 °C). If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cab les. If you do not, this in-
Emergency situations
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Aud i dealer or author­
ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery ac id to contact eyes or
skin . Flush any contacted area with water
immed iately.
- Improper use of a booster battery to start a
veh icle may cause an explosion .
- Veh icle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batter ies.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-Volt rat ing. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batter ies of different voltage or substantial­
ly different "Ah" rating may cause an exp lo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen . T he battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an exp losion and injury . The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
qpage 271.
CD Note
-App lying a higher voltage booster battery
wi ll ca use expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.
327

-When connect ing jumper cables, make sure
that they cannot get caught in any mov ing
parts in the engine compartment.
- Before you check anything in the engine
compartment, a lways read and heed a ll
WARNINGS
¢ page 271.
(D Note
Impro per hook-u p of jum per cables can ru in
the generato r.
- Always connect POSITIVE( +) to POSITI VE
( + ), and NEGATIVE( -) to NEGATIVE( -)
g round post of the battery manager contro l
unit.
- Check that a ll screw p lugs on the batt ery
cells are sc rewed in firmly. If not, t ighten
pl ugs p rior to connect ing clamp on negative
b atte ry te rmi nal.
- Please note t hat the procedure fo r con nect­
i ng a jumper cab le as desc ribed above ap­
p lie s specifica lly to the case of yo ur vehicle
b eing ju mp started. When you are g iv ing a
ju mp s tart t o another vehicle, do
not con­
n ect th e neg ative( -) ca b le to the neg ative
( -) t ermin al on t he disch arge d batte ry @
¢ fig . 291 . Instead, secure ly connect the
n egative(- ) cab le to either a solid metal
com ponent that is f irm ly bolted to the en­
gine block o r to the engine bloc k itself. If
the battery that is be ing c ha rged does not
vent to the outs ide, escap ing batte ry gas
could ignite and ex plod e!
Towing with a tow truck
General hints
Yo ur Audi requires special h andling for towing .
The follow ing information is to be us ed by com­
mercia l tow tr uck o pera tors w ho kn ow how to op ­
e rat e the ir equip men t sa fely.
- Never tow your Audi. Towing will cause dam­
age to the engine and transmission .
- Never wrap the safety chains or winch cables
~ around the brake lines. ,..,
~ - To prevent unnecessary damage, your Audi N
8 must be transported with a flat bed truck . 0 :r Emergency situations
-To load the vehicle on to the flat bed , use the
towing loop found in the vehicle tools and at­
tach to the front or rear anchorage
¢ page 329 and c> page 330.
A WARNING
A veh icle being towed is not safe for passen­
gers. Neve r allow anyo ne to ride in a vehicle
b eing towed, for any reason.
Front towing loop
Fi g. 29 2 Fron t bumper: removing th e cap
Fig. 293 Fron t bumper: insta lling the towing loop
The thread for the towing loop is on the right
s ide of the front bumper beh ind a cap.
.,. Remove the towing loop f rom the vehicle too l
kit.
.,. Press the cap inward with brief, forceful pres­
sure
c> fig. 292 . The cap will loosen from the
bumper .
.,. Tighten the tow ing loop in the threaded open­
ing until it stops
c> fig. 293 and then tighten it
w ith a wheel w re nch .
.,. Afte r usi ng, p la ce th e tow ing loop b ack i n the
-
veh icle tool kit. ..,.
329

C) C0 ....
"' " "' .... 0 0 :r Raising the vehicle
Lifting with workshop hoist and with floor
jack
The vehicle may only b e li~ ed at the lifting
points illustra ted.
F ig. 297 Front lift ing po int
F ig. 2 98 Rea r lift ing point
.,. Read and heed WARNING c:> &_ .
.. Activate the vehicle jack mode in the MMI:
I CAR I funct ion button> Car systems control
button>
Servicing & checks > Air susp.: jack
mod e> On.
~ :c ... a,
.. Loca te lift ing po ints c:> fig . 297 and c:> fig. 298 .
.. Adju st lifting arms of workshop ho ist o r floo r
j ac k t o ma tch vehicl e lifting poin ts.
.. In se rt a rubb er pa d between the f loor jack/
wor kshop hoist and the lifting points .
T he vehicle ja ck mode m ust be a ctiv ate d so th at
the au tomatic a djustment of the Adaptive Air
Suspension does not make it more diffic ult to
raise the ve hicle w it h the floo r jack.
If you must lift your vehicle with a floor jack to
work underneath , be sure the vehicle is safely
supported on stands intended for this purpose .
Emergency situations
Front lifting point
The li fting poi nt is locate d on the floor p an rein ­
f orceme nt ab out at the same level as the ja ck
mounting point
c:> fig . 297. Do not lift the vehi­
cle at the vertical sill reinforcement.
Rear lifting point
T he lifting point is lo cated on the ver tic al rein ­
f orcement o f the lower s ill for the on- bo ar d jac k
<=> fig. 298 .
Lifting with vehicle jack
Refer to c:> pag e 315 .
A WARNING
- To reduce the r is k of se rious inju ry and vehi ­
cle damag e.
- Always lift the vehicle on ly at the special
workshop h oist a nd floor jack lift points
il ­
lustrated c:> fig. 297 and c:> fig. 298.
- Failure to lift t he veh icle at these points
could cause t he veh icle to tilt o r fall from
a lift i f th ere is a change in vehicle weight
dist ribution and balance . This might hap­
pen, fo r example, when heavy com po­
n ents such as the eng ine block o r trans­
mis sio n are re moved.
- Whe n re mov ing heavy co m ponents like
these, an ch or vehicle t o hois t or ad d co rre­
spon ding weig hts t o m aintai n the cen ter of
g ravi ty . Ot herw ise, the vehicle mig ht tilt or
slip off t he hoist, caus ing se rious pe rsonal
i njur y .
(D Note
-Be aw are of the fo llow ing points b efor e lift­
ing the vehicle:
-The vehicle should never be lifted or
jacked up from underneath the engine oil
pan, the transmission housing, the front
or rear axle or the body side members.
This could lead to serious damage .
- To avoid damage to the underbody or
chassis frame, a rubber pad must be in­
serted between the floor jack and the lift
points . ..,.
331

C) C0 ....
"' ,-...
"' .... 0 0 :r Technical data
Vehicle specifications
XXXXX XX · X · XXXX XXX XX
CD-+ :::::: XXXXXX XX XX X XX XXX XXX
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xx xxxxxxx xx xx xx
XXX KW XXX
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©+ I.AO OIR. / IN NENAllSSl.
XXXX I XXXX XXX I XX PAI NT IIO. / ffl£ml
II. • AIJSlit / OPTIONS
EOA 70 5 4U B 6XM SSG SRW
2 EH JO Z 1LB 1AS l BA
3FC S MU 7Xl
F O A 9G3 OG7 OYH OJF
TL 6 3 KA 8EH UlA X 9B OZ7
lXW 803 908 8Z4 020
7T6 CV7 7KO 4X3 2K 2
3 L4 4KC 3YO 413 50 2
lS A 7GB 01A 4GO
XX. X XX X XX X xxxx
Fig. 299 Vehicle identifica tion labe l
Vehicle Identification Number (VIN)
The VIN number is located in the following pla­
ces :
0
0
11:l :x: .,. al
-In the Infotainment system: se lect: the !CARI
func tion button > Car systems control button >
Servicing & checks > VIN number .
-on the vehicle identification label
- under the windshield on the driver's side
Vehicle identification label
The vehicle identification label ¢ fig. 299 is locat­
ed in the luggage compartment under the cargo
floor cover in the spare wheel well.
The information of the vehicle identification label
can also be found in your Warranty
& Mainte­
nance booklet.
Technical data
T he sticker contains the following vehicle data:
(D Vehicle Identification Number (VIN)
@ Vehicle type, engine output, transm ission
@ Engine and transmission codes
@ Paint and interior codes
® Optional equipment numbers
Safety compliance sticker
The safety compliance sticker is yo ur ass urance
that your new veh icle complies w ith all applicable
Federal Motor Vehicle Safety Standards which
were in effect at the time the vehicle was manu­
factured. You can find this sticker on the door
jamb on the driver's side. It shows the month and
year of production and the vehicle identification
number of your vehicle (perforation) as well as
the Gross Vehicle Weight Rat ing (GVWR) and the
Gross Axle Weight Rating (GAWR).
High voltage warning label
The high voltage warning label is located in the
engine compartment next to the engine hood re ­
lease. The spark ignition system complies with
the Canadian standard ICES-002 .
Notes about technical
data
The values may differ for some markets depend­
ing on equ ipment installed in certain markets
and the measuring methods.
Please note that the specifications listed in the
vehicle documentation always take precedence.
(0 Tips
Missing technical data was not available at
the time of print ing.
333

0 co .... N ,..... N .... 0 0 :c ' today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and
its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any other properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nance and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­ ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you check anything in the engine com­
partment, always read and heed all WARNINGS
c::> .&. and c::> .&. in Working in the engine compart­
ment on page 271 .
Consumer information
A WARNING
-Serious personal injury may occur as a result
of improperly performed maintenance, ad ­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fully familiar with these
or other procedures with respect to the ve­ hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or an­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor vehi­ cle is a potentially hazardous area. Never reach into the area around or touch the radi­
ator fan.
It is temperature controlled and
can switch on suddenly - even when the en­
gine is off . The radiator fan switches on au ­
tomatically when the coolant reaches a cer­
tain temperature and will continue to run
until the coolant temperature drops.
- Always switch off the ignition before anyone
gets under the vehicle .
-Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle . The jack supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that
the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in "P"
(Park position) and the park brake is ap-
plied.
~
337