2016 AUDI A5 COUPE check engine

.... N
0 I-­co .... .... 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 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 applicab le 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 191 .
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 any
properly equipped and qualified workshop.
- 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 and the ignition key has been re­
moved. The radiator fan switches on auto­
matically when the coolant reaches a certain
temperature and will continue to run until
the coolant temperature drops.
- Always remove the ignition key before any­
one 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) or Neutral (manual transmis-
sion) and the park brake is firmly applied . ..,.
245

Consumer inf orm ation
@ For the sake of the env ironment
- Changing the engine settings wi ll adversely
affect emission levels. Th is is detrimental to
the environment and increases fuel con­
sumption.
- A lways observe environmental regu lations
when disposing of old engine o il, used brake
fl ui d, d irty engine coolant, spent batteries
or worn out tires.
- Undeployed airbag modules and pretension­
ers mig ht be classified as Perchlorate Mate­
rial -special handl ing may apply, see
www.dtsc .ca.gov/hazardouswaste/perchlo­
r ate. When the vehicle or parts of the re­
straint system including airbag modu les
safety be lts wi th pretensioners are scrap­
ped, all applicab le laws and regulations
must be observed. Your authorized Audi
dealer is familiar with these requirements
and we recommend that you have your deal­ er perform this service for you.
Accessories and technical changes
Additional accessories and parts replacement
Always consult an authorized Audi dealer before
purchasing accessories.
Your vehicle incorporates the latest safety design
features ensuring a high standard of active and passive safety.
This safety could be comp romised by non-ap­
proved changes to the vehicle . For this reason, if
parts have to be replaced, please observe the fo l­
lowing points when insta lling addit ional accesso­
ries:
Approved Audi accessories and genuine Audi parts are available from author ized Audi dealer.
These dealers also have the necessary facilities,
too ls and trained specialists to install the parts
and accessories properly.
246
A WARNING
-
Using the wrong spare parts or using non-ap-
proved accessories can cause damage to the
vehicle and serious personal injury.
- Use only accessories expressly approved by
Aud i and genuine Audi spare parts
- These parts and accessor ies have been spe­
cially designed to be used on your vehicle.
- Never install accessor ies such as telephone
cradles or beverage holders on airbag covers
or w ith in the airbag deployment zones. Do­
ing so will increase the risk of injury if a ir­
bags are triggered in an accident!
- Before you check anything in the eng ine
compartment, always read and heed all
WARN INGS
Qpage 191.
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair wor k is not per­
formed a ccording to specified methods, this
c an resul t in severe damage to you r vehi­
cle's eng ine and body (such as corrosion)
and adve rsely af fect your vehicle's war ranty.
- I f emergency repai rs must be performed
elsewhere, have the vehicle exam ined by an
authorized A udi dealer as soon as possib le .
- T he manuf acture r ca nnot be held liable for
damage which occurs d ue to failure to com ­
ply with these stipulations.
Technical Modifications '
Our guidelines must be complied with when tech ­
nical modifications are made .
Always consult an a uthorized Audi de aler bef ore
sta rt ing work on any modifica tions.
This will help ensure that vehicle fu nction, per­
fo rmance and safety are not impaired
Q ,& .
Attempting to work on electronic components
and the software used with them can cause mal­
funct io ns. Because of the way elect ronic compo­
nen ts a re interconnected with each othe r, such
malfunc tions c an also have an adverse affect on
othe r systems that are not d irectl y involved. This ..,.

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Emergency release . . . . . . . . . . . . . . . . . . . . 88
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Manual shift program . . . . . . . . . . . . . . . . . 86
Removal lock (igni tion key) . . . . . . . . . . . . . 72
Selector lever . . . . . . . . . . . . . . . . . . . . . . . . 83
Automatic wipers . . . . . . . . . . . . . . . . . . . . . . 50
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 119
Average speed . . . . . . . . . . . . . . . . . . . . . . . . 24
Avoid damaging the vehicle . . . . . . . . . . . . . 177
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery location inside the luggage compart-
ment .. .. .. .. .... . .......... .. .. .. . 201
Charge level . . . . . . . . . . . . . . . . . . . . . . . . 175
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Energy manag ement . . . . . . . . . . . . . . . . . 17 5
Important w arnings when working on the
batte ry . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Jump starting . . . . . . . . . . . . . . . . . . . . . . . 236
Replacing the battery . . . . . . . . . . . . . . . . 203
Work ing on the battery . . . . . . . . . . . . . . . 201
Befo re driving . . . . . . . . . . . . . . . . . . . . . . . . 112
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 127
Bio -ethanol (Fuel) . . . . . . . . . . . . . . . . . . . . . 187
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 186
Blower (automatic climate control) . . . . . . . . 70
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 159
Brake fluid
Changing the brake fluid . . . . . . . . . . . . . . 200
Checking the brak e fluid level . . . . . . . . . . 199
Brake system
Anti-lock braking system . . . . . . . . . . . . . . . 19
Brake fluid specifications for refill and re­
p lacement . . . . . . . . . . . . . . . . . . . . . . . . . 200
Brake light defective . . . . . . . . . . . . . . . . . . 21
B rake power assist unit . . . . . . . . . . . . . . . 17 2
Br akes. .. .. .. .... ........... .. .. .. . 172
Ceramic brakes . . . . . . . . . . . . . . . . . . . . . . 172
E lectromechanical parking brake . . . . . . . . 77
Warning/indicator lights . . . . . . . . . . . . . . . 15
Worn brake pads symbol . . . . . . . . . . . . . . . 20
Braking
"' Brake assist . . . . . . . . . . . . . . . . . . . . . . . . 170
0
~ Emergency braking function . . . . . . . . . . . . 79 .... .... Index
braking guard . . . . . . . . . . . . . . . . . . . . . . . . . 89
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Break-in period
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . 172
T ires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Breaking in . . . . . . . . . . . . . . . . . . . . . . . . . . 177
New t ires . .. .. .. .. ............. .. .. 212
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
C
California Proposition 65 Warning . . . . . . . 192
Battery specific . . . . . . . . . . . . . . . . . . . . . 202
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Cargo a rea
refer to Luggage compartment ...... 64, 118
Catalytic converter . . . . . . . . . . . . . . . . . . . . 178
Center armrest . . . . . . . . . . . . . . . . . . . . . . . . 5 7
C entral locking . . . . . . . . . . . . . . . . . . . . . . . . 31
Central locking switch . . . . . . . . . . . . . . . . . 35
Convenien ce key . . . . . . . . . . . . . . . . . . . . . . 34
Remote control key . . . . . . . . . . . . . . . . . . . 34
Ceramic brake rotors New brake pads . . . . . . . . . . . . . . . . . . . . . 172
Certification . . . . . . . . . . . . . . . . . . . . . . . . . 247
Changing engine oil . . . . . . . . . . . . . . . . . . . 196
Checking Engine coolant level . . . . . . . . . . . . . . . . . . 197
Child restra ints
Danger of using child restraints in the front
seat.. .... .. .. .. .. ............... .. 130
Where can I get additional information
about child restraints and their use? . . . . 168
Child restra int system anchors . . . . . . . . . . 164
Child safety . .. .. .. .. ...... ......... .. 151
I mpor tan t safety ins truc tions for using child
safety seats . . . . . . . . . . . . . . . . . . . . . . . . 154
Installing a child restraint using the LATCH
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Lower anchorages . . . . . . . . . . . . . . . . . . . 165
Mounting and releas ing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Tether anchors . . . . . . . . . . . . . . . . . . . . . . 166
Tether straps . . . . . . . . . . . . . . . . . . . . . . . 166
249

.... N
0 I­co .... .... Driving safe ly . ..... .. .... ... .. .. .... . 112
Dr iving throug h wate r . . . . . . . . . . . . . . . . . 177
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . . 24
D ust filte r
re fer to Po llutant filter (au toma tic A/C sys -
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
D ynamic stee ring . .......... .. 102,170 ,174
E
E85 (F ue l) . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Easy entry function . . . . . . . . . . . . . . . . . . . . . 56
E ff iciency p rogra m . . . . . . . . . . . . . . . . . . . . . 26
Fu el economy mess ages . . . . . . . . . . . . . . . 28
M emory levels . . . . . . . . . . . . . . . . . . . . . . . 24
Othe r equipment . . . . . . . . . . . . . . . . . . . . . 27
Shift indicator . . . . . . . . . . . . . . . . . . . . . . . 27
E lect ro-mechan ica l powe r ass ist . . . . . . . . . 17 4
Electromechanical parking brake
Emergency braking . . . . . . . . . . . . . . . . . . . 79
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 77
Pa rking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Re leas ing and closing . . . . . . . . . . . . . . . . . 77
St arting assis t . . . . . . . . . . . . . . . . . . . . . . . 78
S tarting from rest . . . . . . . . . . . . . . . . . . . . 78
S tarting off w ith a t railer . . . . . . . . . . . . . . . 78
Warning/indicator lights . . . . . . . . . . . . . . . 16
E lec tronic d ifferential lock
Wa rn in g/i ndic ator lig hts . . . . . . . . . . . . . . . 18
Electronic Differential Lock . . . . . . . . . . . . . 170
Electronic differential lock (EDL)
Wa rning/i ndicator lig hts.. ... .. .. .... .. 1 9
E lec tronic im mob iliz er . . . . . . . . . . . . . . . 12 , 37
Electronic power control (EPC) warning/ind icator light . . . . . . . . . . . 20
Elect ronic speed limiter . . . . . . . . . . . . . . . . . 29
E lect ronic stab iliz at io n cont rol
Sport mode . . . . . . . . . . . . . . . . . . . . . . . . 17 1
Electronic Stabilization Control . . . . . . . . . . 170
Electronic Stabilization Control (ESC) Wa rning/indicator lights . . . . . . . . . . . . . . . 1 8
E me rge ncy ac tuati on
D oors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
I gnition key . . . . . . . . . . . . . . . . . . . . . . . . . 34
P ano ram ic tilting sunroo f . . . . . . . . . . . . . . 4 0
Sun shade (roof) . . . . . . . . . . . . . . . . . . . . . 4 0
E me rge ncy brak ing . . . . . . . . . . . . . . . . . . . . . 79
Index
E mergency flasher . . . . . . . . . . . . . . . . . . . . . 46
War ning/indicator lights . . . . . . . . . . . . . . . 22
E mergency key . . . . . . . . . . . . . . . . . . . . . . . . 32
Start ing engi ne . . . . . . . . . . . . . . . . . . . . . . 74
Emergency ope ration
Emergency braking function (parking brake) .7.9
Emergency start ing . . . . . . . . . . . . . . . . . . . 236
E nergy manage men t . . . . . . . . . . . . . . . . . . 175
B attery power . . . . . . . . . . . . . . . . . . . . . . . . 16
Drive r notification . . . . . . . . . . . . . . . . . . . . 16
E ngine
Compartment . . . . . . . . . . . . . . . . . . . . . . . 193
Coo la nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 96
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Sta rt ing . . . . . . . . . . . . . . . . . . . . . . . . . 72 , 75
Start ing wi th ju mpe r cables . . . . . . . . . . . 236
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . 7 4, 76
En gine compartment . . . . . . . . . . . . . . . . . . 193
Safety i nstr uctions .. ............. .. .. 191
Wo rking the engine compa rtment . . . . . . 191
E ngine coolant
I n dicator light . . . . . . . . . . . . . . . . . . . . . . . 17
Engine coolant system . . . . . . . . . . . . . . . . . 196
Adding coolant . . . . . . . . . . . . . . . . . . . . . . 198
Checking coolant level . . . . . . . . . . . . . . . . 197
Checking the engine coo lant level. . . . . . . 197
Radiator fan . . . . . . . . . . . . . . . . . . . . . . . . 199
Engine coolant temperature
Temperature gauge . . . . . . . . . . . . . . . . . . . 10
E ngine hood
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
How to release the hood . . . . . . . . . . . . . . 191
E ngine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 93
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Addi tives. ... .. .. .. ... .. ..... ... .. .. 195
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Check oil level . . . . . . . . . . . . . . . . . . . . . . 195
Cons umption . . . . . . . . . . . . . . . . . . . . . . . 195
Indicator light . . . . . . . . . . . . . . . . . . . . 17, 20
Oil consumpt io n . . . . . . . . . . . . . . . . . . . . . 194
Pressure malfunct ion . . . . . . . . . . . . . . . . . 17
Senso r defect ive . . . . . . . . . . . . . . . . . . . . . . 20
Spec ificatio n and viscosity . . . . . . . . . . . . . 193
Engine speed limitation . . . . . . . . . . . . . . . . . 20
E nv ironmen t
C atalytic converter . . . . . . . . . . . . . . . . . . . 178
Dispos ing of your veh icle battery . . . . . . . 203
251