open hood AUDI A8 2015 User Guide

228 Checking and filling
Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 197 Driver foo twell: release lever
Fig. 198 Rocker switch un der the hood
Make sure the wiper arms are not raised up
from the windshield. Otherwise the paint
could be damaged.
.,. Pull the lever under the instrument panel in
the direction of the arrow
¢ fig. 197.
.,. Raise the hood slightly¢,&. .
... Press the rocker switch under the hood up­
ward ~
fig. 198. This releases the catch.
• Open the hood.
&_ WARNING
Hot engine coolant can burn you.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
'Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Whenever you must perform any work in the
engine compartment, for example checking
and filling different fluids, there is a risk of injury, burns and accidents. To prevent per­
sonal injury always observe the following
WARNINGS. The engine compartment of any
vehicle is a hazardous area
¢ ,&. .
A WARNING
To help avoid injury, before you check any­
thing under the hood:
- Turn off the engine.
- Switch off the ignition .
- Apply the parking brake.
- Move selector lever to "P" (Park) .
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment.
- Never spill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm . The cool­
ant system is pressurized and hot cool­
ant could spray out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir.
- Do not
remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:

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-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch :
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever to "P" (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical ha zards c:::> & .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition ,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm .
Checking and filling 229
-Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
(® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.
Closing the engine hood
.,. Pull the hood down until the pressure from
the struts is reduced.
"'Let the hood
drop down and latch in place.
Do not try to push it shut; it may fail to en­
gage
c:::> ,A .
A WARNING
-
A hood that is not completely latched
could fly up and block your view while driv ­
ing .
- When you close the engine hood, check it
to make sure the safety catch has proper­ ly engaged. The hood should be flush
with the surrounding vehicle body parts.
- If you notice while driving that the hood
is not secured properly , stop at once and
close it. •
•

24 2 Ch ecking and filling
-Never charge a frozen or a thawed-out
battery. It could explode! If a battery has
frozen, then it must be replaced. A dis­
charged battery can freeze over at 32 °F
(0 °C) .
- Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery .
- Never use batteries which are damaged .
There is the dange r of an explosion! Al­
ways replace a damaged battery .
A WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive problems. Wash hands after han­
dling.
- Do not d isconnect the veh icle battery
when the ignition is on or when the en­
gine is running, otherwise, you will dam­
age electronic components in the electri­
ca l system.
- If your veh icle is go ing to stand for a
l ong period of time without being driven,
protect the battery from "freezing", oth­
erwise it w ill be damaged and w ill then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 2 06 Engine compartme nt: connecto rs fo r a cha rg ­
e r and jump star t cab les
Alwa ys re ad and h eed all WARNINGS below
¢
A and ¢ A in Working on the battery on
page
241.
.. Switch off the ignition and all electrical con­
sumers .
.. Make sure the area is we ll ventilated when
you charge t he battery.
.. Open the eng ine hood ¢
page 228.
.. Remove the cover (D by pressing on the ar­
row ¢
fig. 206 .
.. Open the cover @on the pos it ive terminal.
.. Connect the charger connectors according to
the inst ructions to the
jump start b olt s.
(Bolts under the red cover = "posit ive", Bo lts
w ith hex head= "negative") .
.. On ly now plug the mains lead for the charg ­
ing equipment into the wal l o utlet and turn
iton ¢
,&.
.. M ake sure the cha rging rate is not over
3 0 amps /14.8 Volt .
.. When the battery is fully charged: Turn the
charg ing equipment off and remove the
mains lead from the wall out let .
.. Now remove the clamps for the charging
equ ipment.
.. Close the red cover on the positive pole .
.. Close the hood ¢
page 229.
A discharged battery can freeze at tempera ­
tu res of only 32 F
0 (0 °C). Allow a frozen bat­
te ry to thaw completely before attempting to
charge it¢ & . However, we recommend not
us ing a thawed battery again because the bat­
tery casing can be cracked due to ice forma ­
t ion and can leak battery acid.
Battery cha rging (M ax imum charging rate
of 30 amp s/14.8 Volt )
When charg ing at low vo ltages (e.g. with a
t rickle cha rge r), the battery cables do not
have to be disconnected first. The battery
caps should
not be opened when charg ing a
battery.
It is not necessary to remove the battery from
the luggage compartment, and it is also not
necessary to d isconnect the cab les .

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Index 299
-----------------------------------.......
Emergency warning triangle ... .. .. .. . 266
Energy management ................ 202
Engine Compartment ..................... 230
Coolant .. ............... ......... 236
Data .. .. ..... ........... ...... .. 289
Start-Stop-System . . . . . . . . . . . . . . . . . . 87
start ing .. .. ................. .. .. .. 83
Starting wi th jumper cab les ......... 281
S topping . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Eng ine compartment ................ 230
C losing the hood ................ .. 229
Opening the hood ............ .. ... 228
Safety in structions .......... .. .. ... 228
Wo rking in the engine compa rtment .. 22 8
Eng ine coolant ..................... 236
Adding coolant ............ ...... .. 237
Checking the eng ine coolant leve l ... .. 237
E xpansion ta nk .................... 237
M alf unc tion symbo l ................. 15
Radiato r fan . ..... .... ... .. .. .. ... 238
Temperature ga uge .... ... .. .. .. .. .. 10
E ng ine oil . .. ..... ........ ...... .. . 23 1
Adding . ... ................ ... .. . 234
Addit ives . .. ................. .. .. . 234
Changing . ... ... ..... ... .. .. .. ... 235
C hecking oil level . ..... ... .. .. .. .. . 234
C hec king the engine oil level . ... .. .. . 233
Consumpt ion .................. ... 234
Indications and condit ions requ iring ex-
tra check ing ...................... 233
Indicator light . . . . . . . . . . . . . . . . . . . . . 17
O il consumption .... ... ... .. .. .. .. . 233
O il grades .. ................. .. ... 23 1
P ressu re malfunction ................ 17
Recommended oil check in tervals .. ... 233
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscosity . ... .. .. .. . 23 1
E ng ine sound ............. .... .. .. . 108
Eng ine speed limitat io n ............... 21
E ng ine start -stop mode
refer to Sta rt-Stop -Sys tem ... .. .. .. .. 89
E ntry assistance . . . . . . . . . . . . . . . . . . . . . 64
Environment Break- in period ............... .. ... 205
Catalytic converter ............... .. 206
D iese l part icu late filter ............. 206
Di sposing of yo ur vehicle batte ry 2 43 Driving at high speeds
.. ..... ... .. .. 208
Drivi ng to minimize poll ution and noise 207
Fuel . ... .. .. .. .. .. . .. ... .... ... .. 223
Fuel economy ..................... 207
Leaks under your vehicle ............ 228
Letting the vehicle stand and warm up . 208
Proper disposal of dra ined brake fl uid . 239
Proper disposal of d ra in ed eng ine cool-
an t ............................. 237
P roper disposal of dra ined eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 234, 235
Recycling used engine oil ..... ... .. .. 234
U nl eaded fuel .. .. .. . ... ...... ... .. 220
What shou ld I do with an o ld battery? . 243
E PC
refer to Elect ron ic power control (EPC) . 20
ESC Post-coll is ion b ra ke assist .......... . 198
also refer to Electronic Stab ili zation Con-
t ro l (E SC) ... .. ................... 197
Event Data Recorder (EDR) ............ 196
Exhaust tail pipes Cleaning . ... .... .. . .. .. ..... ... .. 216
E xpansion tank .. ... ................ 237
Exterior lighting ..................... 46
Exterior mi rrors
Adjusting ... .... .. . .. .. ..... ... .. . 55
Dimming ...... ................... . 56
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
E xterior tempera ture display ........... 23
F
Fastening
B oos ter sea ts .. ................... 182
Convertib le child sa fety seats . ... .. .. 18 1
Infant seats ... .... . ... ...... ... .. 180
Floor mats .. ... .... ........... ..... 139
Fo lding table .... .................... 69
Foot ped als . .... ................... 138
For the sake of the environment
Gasoline fumes and the env ironment .. 223
Reduc ing engine nois e by ea rly upshift-
i ng ............................... 10
Ref uell ing ... .. ................... 22 3
Saving f uel by early upsh ifting ... .. .. . 10
Four zone automat ic climate control ..... 79
•
•

300 Index
Front airbags
Description .... . ...... ... .. .. .... .
155
Howtheywork . ... .... ... .. .. .... . 160
Fr onta l co llisions and the laws of physics 144
Front passenger seat adjustment ... .. .. 64
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 58
Adjusting . .... . ...... ... .. .. .... . 135
Child restraints in the front seat ..... . 153
Fue l
Additives .... .. .. ..... ... .. .. .... .
220
Blended gasoline . ..... ... .. .. .... . 220
Current consumptio n . . . . . . . . . . . . . . . . 25
Economy messages (efficiency program) 26
Fuel filler flap emergency release .... . 224
Fuel filler neck ........... .. .. .. .. . 222
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline ..................... ... . 220
Gasoline additives . ........... .. .. . 221
Low fue l level symbo l . . . . . . . . . . . . . . . 21
Octane rating .......... .. .. .. .. .. . 220
Recommendation . ..... ... .. .. .... . 220
Refue lling . .... .. ..... ... .. .. .... . 223
Reserve .... ... .. ..... ... .. .. .... .. 11
Tank capacity . . . . . . . . . . . . . . . . . 11,288
Fu ses
Assignment . .. .. ..... ... .. .. .... .
276
Rep lacing . .. .. .. ..... ... .. .. .... . 276
G
Garage door opener (Homel in k) .. .. .. . 131
Garment hooks ................. ..... 75
Gas discharge lamps ... ... .. .. .. .. .. . 280
Gauges
Eng ine coolan t temperature .. .. .. ....
10
Fue l gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer . . . . . . . . . . . . . . . . . . . . . . 26
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer . . . . . . . . . . . . . . . . . . . . . 26
General illustration . . . . . . . . . . . . . . . . . . . 8
Generator ..................... .....
16
Glossary of t ire and loading termino logy 246
Glove compartment (cooled) ........... 75
Glow plug system
Indicator light . . . . . . . . . . . . . . . . . . . . .
20
Gross Vehicle Weight Rating (GVWR) .. . 287
H
Head -up Display . . . . . . . . . . . . . . . . . . . . . 28
Head lights
Cleaning .. .. .. .. .. ........ ...... .
215
Cleaning system . . . . . . . . . . . . . . . . . . . . 53
De fec tive . . . . . . . . . . . . . . . . . . . . . . . . . 22
Head light range control . . . . . . . . . 22 , 46
High beam assist .... .. ..... ... .. .. . 49
Washer reservoir ... ... ..... ... .. .. 244
Head restrai nts . . . . . . . . . . . . . . . . . 65, 13 7
Adjusting . .. .. .. ............. .. .. 13 7
Heated exter ior mirro rs . . . . . . . . . . . . . . . . . . . .
55
rear w indow . . . . . . . . . . . . . . . . . . . . . . . 80
sea ts . .. .. .. .. .. .. ............. .. . 80
windshield washer sp ray no zzles . . . . . . 53
Heating ...... .. .. .. ... ....... ... .. . 78
Heavy clothing and safety be lts . ... .. .. 146
Hig h beam .. .... .. ............. ..... 48
Hig h voltage warning label ........... 287
Hill descent contro l .. .... .... ... .. .. 117
Homelink universal remote control .... 131
Hood (re lease lever) . .... ..... ... .. .. 228
Hor n ............................... 8
How are child restraint system anchors re-
lated to chi ld safety .......... .......
187
How many airbags does my vehicle have? 158
How often should I che ck my tire pres-
s ur es? . .. .. .. .. .. ............... ..
2 52
How safety belt pretens ioners work .. .. 149
Hydrop laning ..... ... .. ..... ... .. .. 256
I
Ig nition
Indica tor lights .. .. .... .... ... .. .. .
17
Switching on/off .... .. ..... .... . .. . 83
Immobilize r .. .. .. ............. .. .. . 26
Important t hings to do before driving .. 133
Improperly worn safety belts . . . . . . . . . . 149
Ind icator lights
Dynam ic steer ing ................. .
201
also refer to Warning/indicator lights . . 11
Infant seats .... .. ............. .... 180
Installing child safety seats
Safety be lts . . . . . . . . . . . . . . . . . . . . . .
184

302 Index
Massage function Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . 60
Rear seats . .... .......... ........ .. 61
Reclining rear seat ........ .. .. ...... 64
Matte finish paint cleaning .. .. .. .... . 214
Mechanical key . . . . . . . . . . . . . . . . . . . . . . 32
Mirrors Ad justing the exterior mirrors ... .... .. 55
Compass ... ............. .. .. .. ... . 56
dimming . .. .. . .......... .. .. .... .. 56
Vanity mirrors . . . . . . . . . . . . . . . . . 51, 52
Monitoring the Advanced Airbag System 161
Mu ltifunction stee ring wheel ..... .. .. .. 24
N
Natural leather
C leaning ....... ...... ... .. .. .. .. . 217
New tires and wheels ....... .. .. .... . 256
NHTSA Contacting .... .......... .. .. .... . 141
Night vision ass istant . . . . . . . . . . . . . . . . 11 1
Cleaning camera lenses ...... .. .. .. . 215
Ni trogen oxide (NOx) cata lytic converter
refer to Ad Blue .. ......... .. .. .. .. . 225
Number of seats ......... .. .. .. .... . 143
0
Occupant seating positions .. .. .. .. .. . 134
Octane rating ................ ... .. . 220
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 26
OFF (automati c climate control) . . . . . . . . 79
O il
refer to Engine oil .. ... ... .. .. .. .. . 231
On-board computer . . . . . . . . . . . . . . . . . . 25
On-Board Diagnostic System (OBD)
Data Link Connector (DLC) .... .. .... .. 29
E le ctr onic spee d limiter . . . . . . . . . . . . . . 30
M alfunct ion Indica tor Lamp (MIL) . . . . . 29
Open door/hood/rear lid warning . . . . . . . 29
Opening Hood .. .. ............... ........ . 228
Luggage compartment lid . . . . . . . . 38, 40
Panoramic sunroof .. .. .. .. .. .. .. .. .. 44
Power windows ........... ... .. .... 41
Sliding/tilting sunroof ... .. .. .. .... .. 43
Sun shades . . . . . . . . . . . . . . . . . . . . 45, 52 Operate
your vehicle economically and
minimize poll ution ... ........... .. .. 207
Other equipm ent (efficiency program) 26
Outs ide mirrors
refer to Exterior mirrors . . . . . . . . . . . . . 55
p
Paint damage . .. .. ... .......... .. .. 216
Paint No ........ .. ............. .... 287
Panoramic sunroof ................. .. 44
Sun shade ..... .. ..... ......... ... . 45
Parking .... .... .. ............. .... . 86
Valet parking .... ............. .... . 42
Parking brake ... .. ... .......... .. .. . 85
also refer to Electromechanical parking
brake ... .. .... .. ... .. ........ .. .. . 85
Parking system
Adjus ting the display/warning tone ... 130
Cleaning sensors/came ra lenses .. .. .. 215
Cleaning the rear v iew camera ... .. .. 121
Malfunction ..... .. ........... .. .. 130
Peripheral cameras ............ .... 124
Trail er hitch . .. .. ... .......... .. .. 130
Parking systems ... ............. .... 120
Particle filter
refer to Diesel particulate filter ...... . 21
Parts replacement . ............. .... 292
Pass-through with ski s ack ........ .... . 71
PASSENGER AIR BAG OFF light ........ 162
Passenger protection .. .......... .. .. 194
Passive safety system ............ .... 133
Pedals . .... .... .. ............. .... 138
Pedestrian detection .. .......... .. .. 111
Physical principles of a frontal collision 144
Plastic parts
Cleaning .. .... .. ............. .... 216
Polishing ..... .. .. .. ........... .... 216
Pollen filter
refer to Pollutant filter (automatic A/C
system) . .. .. .. .. ............. .. ... 78
Pollutant filter (automat ic A/C system) .. 78
Power locking system ............ .. .. . 33
Locking/unlocking the vehicle from i n-
side .......... .. .. ........... .. .. . 36
Luggage compartment lid ....... .... . 37
Selective unlock feature . . . . . . . . . . . . . 34