check engine AUDI A5 COUPE 2012 Service Manual

28 6 Em ergency sit uat ions
-Jumper cables must be long enough so
that the vehicles do not touch.
- When connecting jumper cables, make
sure that they cannot get caught in any
moving parts in the engine compart­
ment.
- Do not bend over the batteries -danger
of chemical burns!
- The battery ce ll locking screws must be
tightened securely .
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS 9
page 230, Engine com­
partment.
(D Note
Improper hook-up of jumper cables can ru­
in the generator.
- Always connect POSITIVE( +) to POSI­
TIVE(+), and N EGATIVE( -) to NEGATIVE
( - ) ground post of the battery manager
control unit.
- Check that all screw plugs on the battery cells are sc rewed in firmly . If not, tighten
plugs prior to connecting clamp on nega­
tive battery terminal.
- Please note that the procedure for con­
nect ing a jumper cable as described
above applies spec ifically to the case of
your vehicle being jump started . When
you are giving a jump start to another ve­ hicle, do
not connect the negat ive (-) ca­
ble to the negative( -) terminal on the
discharged battery@9fig.
231. In ­
stead, securely connect the negative(-)
cab le to either a solid metal component
that is firmly bolted to the engine block
or to the engine block itse lf. If the bat­
tery that is being charged does not vent
to the outside, escaping batte ry gas
could ignite and explode!
Emergency towing
with commercial tow
truck
General hints
Your Audi requires special handling for tow­
ing.
T he following information is to be used by
commercial tow truck operators who know
how to operate their equipment safely.
- Nev er tow y our Audi , tow in g will cau se
damage t o the engi ne and tr an smi ssion .
- Ne ver wrap th e safety chain s or winch ca­
bl es around the b rak e lin es.
- To pre vent unne ce ss ary dam age, your Audi
mus t be tr an sp o rt ed with a flat bed t ruck.
- To load th e vehicle on to th e flat b ed, use
th e t owing l oop found in th e vehicle too ls
a nd a ttac h to th e front or rea r a nchor age
c;,poge 287 and c;,page 287 .
& WARNING
= -
A vehicle being towed is not safe for pas­
sengers. Never allow anyone to ride in a
vehicle being towed, for any reason.

fall f rom a lift if the re is a change in ve­
h icle we ight d istr ibut ion and balance.
This might happen, for examp le, when
heavy components such as the engi ne
b lock or transmiss io n are removed .
- Whe n removing heavy components like
these, ancho r vehicle to ho ist o r add cor­
r e spond ing w eig hts to ma intai n the cen ­
te r of g ravity . Othe rwise, the vehicl e
mi ght til t or slip off th e hoi st, causi ng
s er ious perso nal inju ry.
(D Note
- Be awa re of th e f ollowing po in ts b efore
li fting t he vehi cle:
- 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
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear­ ance between the hoist and low parts
of the vehicle .
Emergency situations 289
•
•

29 4 Con sum er Inf ormation
comp lexity of today's automobi les, have
steadi ly reduced the scope of maintenance
and repairs which can be carried out by vehicle
owners.
Also, s afety an d e nvir onm ent al con­
cerns place very strict limits on the nature of repairs and adjustments to engine and trans ­
miss ion pa rts which an owner can perform .
Maintenance, adjustments and repa irs usua lly
require special tools, testing devices and oth­
er equipment avai lab le to specially trained
workshop personnel in order to assure proper
performance, reliab ility and safety of the vehi­
cle and its many systems .
Improper ma intenance, adjustments and re ­
pa irs can impair the operation and reliab ility
of your vehicle and even void your vehicle war­ ranty. Therefo re , proof of servici ng in accord­
ance w it h the ma intenance sched ule may be a
condition for upholding a poss ible warranty
claim made within the warran ty period.
Above all, operational safety can be adve rsely
affected, c reating unnecessary risks for you
and your passengers.
If in doubt about any serv icing, have it done
by your author ized Audi dealer or any other
p roperly equipped and qualified workshop .
We strong ly urge you to give your authorized
Audi dealer the opportunity to perform all
schedu led maintenance and necessary repairs .
Your dea ler has the facilities, or iginal parts
and tra ined spec ialists to keep your vehicle
running properly .
Performing lim it e d m aint en anc e y ourself
The fo llowing pages describe a limited num­
ber of procedures which can be performed on
you r vehicle with ordinary too ls, shou ld the
need arise and trained personnel be unavaila­
ble. Before performing any of these proce­
dures, always thoroughly read all of the app li­
cable text and ca refully follow the instruc­
tions given. Always rigorously obse rve the
WARNINGS p rovided .
Before you ch eck anything in th e engin e
compartme nt, alway s read an d heed all WARNINGS
¢ & a
nd ¢ & in Working in the
engine comportment on page 23
7 .
A WARNING
-- Serious personal in jury may occur as a re-
sult of improperly performed mainte­ nance, adjustments or repa irs.
- Always be extremely careful when work­
ing on the vehicle. Always follow com­
monly accepted safety pract ices and gen­
eral common sense. Never r isk personal
in jur y.
- Do not attempt any of the maintenance,
checks or repairs descr ibed o n the fol­
lowing pages if you are not fu lly fam iliar
with these or other procedures with re­ spect to the ve hicl e, or are uncerta in how
to proceed .
- Do not do any work withou t the proper
too ls and equipment . Have the necessary
work done by your authorized A udi deal ­
er or anothe r properly equipped and
qualified workshop.
- The engine compar tment o f any motor
vehicle is a potentially hazardous area. Never reach into the area around or
touch the rad iator fan. It is temperature
control led and can sw itch on suddenly -
even when the engine is off and the igni­
tion key has been removed. The rad iator
fan switches on automatically when the coo lant reaches a certai n tempera ture
and will cont inue to run until the coo lant
temperature drops .
- Always remove the ign ition key befo re
a nyone gets under the veh icle.
- Always suppor t your veh icle with safety
s tands if it is necessary to work under­
neath the vehicle. The jack s upplied with
the vehicle is not adequate for this pur ­
pose and co uld co llapse causing serio us
personal injury.
- If you must work unde rneath the vehicle
wit h the wheels on the ground, a lways
make sure the vehicle is on leve l ground,
that the wheels are always secure ly
blocked and that the engine cannot be
started.

-Always make sure the transm ission se­
lector lever (automatic transmiss ion) is
in "P" (Park position) or Neutral (manual
transmission) and the park brake is firm­
ly appl ied .
® For the sake of the environment
-Changing the eng ine settings w ill ad­
versely affect em ission levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when d ispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batter ies or worn out t ires.
- Undeployed airbag modules and p reten­
s ioners might be classified as Perchlo­
rate Material -special handling may ap ­
ply, see www.dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system including
airbag modules safety belts with preten­
s ioners are scrapped, all applicable laws
and regulations must be observed. Your
authorized Audi dealer is familiar w ith
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult on authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sign featu res ensu ring a high standard of ac­
tive and passive safety.
This safety could be compromised by non-ap­
proved changes to the veh icle. For this reason ,
if parts have to be replaced, p lease observe
the following points when installing addition­
al accessories:
Con sumer In formation 295
Approved Audi accessories and genuine Audi
parts are available from authorized Audi deal­
ers.
T hese dea lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly.
A WARNING
Using the wrong spare parts or using non­
approved accessories can cause damage to
the vehicle and serious persona l injury.
- Use on ly accessories express ly approved
by Audi and genuine Audi spare parts
- These parts and accessories have been
specially designed to be used on your ve­
hicle.
- Never install accessories such as tele­
phone cradles or beverage holders on air­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ~
page 230.
(D Note
-If items other than genuine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this can result in severe damage to
your vehicle's engine and body (such as
corrosion) and adversely affect your vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized Audi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occurs due to failure
to comply with these stipulations.
•
•

300 Index
Car ca re ... ... .. .. ..... ... .. .. .... . 221
Int erior .... ... . ...... ... .. .. .... . 226
Plastic and v inyl ... .... ... .. .. .... . 224
Ca re of exte rior ... .. ... .. .. .. .. .. .. . 22 1
Cargo area
refer to Luggage compartment 44, 68 , 150
Cargo net .... ... . ...... ... .. .. .... .. 69
Cata lytic conve rter ......... .. .. .... . 214
Center armrest
Adjusting .. ................ ... ... .
68
Storage compartment . . . . . . . . . . . . . . . 68
Certification ... .. ...... ... .. .. .... . 296
Changing a fla t tire ......... .. .. .... . 274
Changing a wheel .......... .. .. .... . 274
Changing engine oi l
Chass is 2 4 3
Unde rcoat ing .......... .. .. .. .. .. . 226
Checking
Eng ine coolant leve l ........ ... .. .. .
244
Checking tire pressure . ... .. .. .... .. . 258
C hi ld restra ints
D anger of using c hild restra ints in the
front sea t .... ............. .. .... .
163
Where can I ge t addit iona l info rmation
about child restra ints and their use? ..
203
C hi ld restra int system anchors . .. .. .. . 199
C hi ld safety ............... .. .. .... . 186
Convertible locking retractor .. .. ..... 195
Important safety instructions fo r us ing
ch ild safety seats .. ....... .. .. .. .. .
189
Important things to know wh en dr iving
wi th child ren ............ .. .. .... .
186
Ins tall ing a chi ld res traint using the
L A TC H sys tem .. .. ..... ... .. .. .... .
200
Lowe r ancho rages ..... ... .. .. .... . 200
Mounti ng and releasing the ancho rage
hook .. .. ................. .. .... .
200
Tether anchors ........... .. .. .... . 201
Tethe r straps . ... ..... ... .... .. .. . 201
C hild safety seats ....... ... .. .. .... . 191
Booste r seats .. .. ..... ... .. .. .... . 194
Conve rtible chi ld seats .... .. .. .. .. . 192
Convertible locking retractor .. .. .. .. . 195
Danger of us ing c hild restra ints in the
front seat .. ................ ... .. .
163
H ow do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. .
189
Infant seats ..... ... .. ..... .... . .. 191
Installing ..... .. .. ... ..... ... .. .. 195
LA TCH system . ... ... .. ..... ... .. .. 200
Safety instr uctions ............. .... 189
C igarette ligh ter . . . . . . . . . . . . . . . . . . . . . 76
Cleaning
Alcanta ra ® (synthetic suede) .........
229
Engine co mpartment ......... .. .. .. 2 30
Exhaus t ta il pipes . ............. .... 22 6
Fabr ics and fab ric coverings ... .. .. .. 22 7
Instr ument pane l ... ... ..... ... .. ..
2 27
In terior ... .... .. .. .... .... ... .. .. 226
Leather ... .... .. ... .. ..... .... . .. 229
MMI control console ........... .. .. 226
MMI display ... .. ............. .... 226
Plastic and vinyl .. ..... ........... . 224
Plastic parts . .. .. ..... ........... . 22 7
Safe ty be lts ..... ................ .
230
Trim strips .. .. .. ... .......... .. .. 22 4
Cleaning and protection .......... .. .. 221
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Coat hooks ... .. .. .. ... .. ... ..... .. . 77
Co ld tire inflation pressure ........ .. ..
256
Compac t spa re tire . ............. .. .. 2 73
also refer to Spare ti re ............ .. 2 73
Compass mirror . . . . . . . . . . . . . . . . . . . . . 59
Compliance ..... .. .. ... ..... ... .. .. 296
Cons umer Informa tion . . . . . . . . . . 1 52, 293
Contacting NHTSA . ............... .. 152
Co nvenience closed . . . . . . . . . . . . . . . . . . 4 6
Co nvenience key . . . . . . . . . . . . . . . . . . . . . 42
START E NGIN E STOP butto n . . . . . . 94 , 96
Star ting eng ine .. ............. .. .. . 94
Swi tch ing eng ine off ........... .... . 96
Switching on ignition . .. ..... ... .. .. . 94
U nlocking and locking vehicle . ... .. .. . 42
Co nvenience openi ng ............ .... . 46
Convertib le child safety seats ..... .... 192
Co nvertib le locking retractor
Activati ng ..... .. .. ... ..... ... .. ..
197
Deactivating ..... ... .. ..... ... .. .. 198
Using to secure a child sa fety seat l.95, 197
Coolant system .. .. ............. .. .. 2 4 4
Cooling System
Expans ion tank . .. .......... ...... .
244
Cornering light . . . . . . . . . . . . . . . . . . . . . . 52

302 Index
Efficiency program . . . . . . . . . . . . . . . . . . . 24
Fuel economy messages . . . . . . . . . . . . . 26
Memory leve ls . . . . . . . . . . . . . . . . . . . . . 23
Other equipment . . . . . . . . . . . . . . . . . . . 25
Shift indicator . . . . . . . . . . . . . . . . . . . . . 25
Electrical seat adjustment
refer to Seat adjustment ........... . . 63
E lectromechan ical park ing brake
E mergency braking . . . . . . . . . . . . . . . . . 98
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 99
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 96
Parking .... ................ ..... .. 97
Releasing and closing ............. . . 96
Starting assist ........... .. .. .. .. .. 98
Starting from rest .......... .. .... .. 98
Starting off with a trailer . . . . . . . . . . . . . 98
Warning/ indicator lights .... ..... .. .. 17
Electronic differential lock (EDL) How the system works ....... .. .... . 205
Warning/indicator lights ... .. .. .. .. . . 16
Electronic immobilizer . . . . . . . . . . . . . . . . 39
Electronic power control
(EPC) warn ing/ indicator light ... .. .. . . 15
Electronic stabili zation program (ESP)
How the sys tem works ....... .. .. .. . 204
Warning/indicator lights ....... .. .. .. 15
Emergency braking . . . . . . . . . . . . . . . . . . . 98
E mergency flasher . . . . . . . . . . . . . . . . . . . 52
Warn ing/ indicator lights ..... .. .. .. . . 16
Emergency key . . . . . . . . . . . . . . . . . . . . . . 3 7
Start ing engine ........... ... .. ... . 39
Emergency locking of the doors ..... .. .. 44
E mergency release
Selector lever ............ .. .. .... . 132
E mergency starting ......... ... .. .. . 284
Emergency towing .......... ... .... . 286
E mergency unlocking
I gnition key ........... .. .. .. .. .. .. 39
Energy management ..... .. .... .. .. . 211
Battery power ............... .. ... 212
Driver notification . ......... .. .. .. . 212
E ngine
Compartment . ........... .. .. .... . 239
Coolant .. .. ............... .. .... . 244
H ood .. .. .. ................ ... .. . 237
Starting ... ... .... ...... .. .. .. .. .. 92 Starting
with jumper cables ....... .. 284
Stopping . ..... .. .. .............. .. 94
Engine compartment Safety instructions ............. .. .. 23 7
Working the engine compartment .... 237
Engine coolant system ............ ... 244
Adding coolant . .. ................ . 245
Checking coolant level ............ .. 244
Checking the engine coolant level ..... 244
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 31
Radiator fan ..... ................ . 246
Engine coolant temperature
T emperature gauge . ........... .. .. . 10
Engine data . .... .. ............. .... 292
Engine hood
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7
How to release the hood . . . . . . . . . . . . 23 7
Engine oil ...... .. ............. .... 239
Adding . .. .. .. .. ............. .. .. 242
Additives . ... .. .. .. .............. . 242
Changing ..... .. .. .............. . 243
Check oil level ... ............. .... 242
Consumption .. .. ............. .. .. 242
Oil consumption .. ... .......... .. .. 241
Oil grades . .... ................... 239
Specification and viscosity ........ ... 239
Engine oil level .... ................ .. 36
Engine oil pressure
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 31
Engine oil sensor defective . . . . . . . . . . . . 36
Engine speed limitation . . . . . . . . . . . . . . . 36
Environment Break-in period . .. ............. .... 213
Catalytic converter ............. .... 214
Disposing of your vehicle battery ..... 251
Driving at high speeds .............. 215
Driving to minimize pollution and noise 215
Fuel .. .. .. .. .. .. ............. .. .. 234
Fuel economy .. .. ... .......... .. .. 215
Leaks under your vehicle .......... .. 23 7
Letting the vehicle stand and warm up. 216
Proper d isposal of drained brake fluid . 247
Proper disposal of drained engine cool-
ant .. .. .. .... .. ............. .... 245
Proper disposal of drained engine
oi l . . . . . . . . . . . . . . . . . . . . . . . . . 242, 243
Recycling used engine oil ............ 242