check engine light AUDI A5 CABRIOLET 2017 Owner's Manual

Check ing and F illing
CJ) Note
Never use a fast charger as a booster to start
the engine . This will serio us ly damage sensi­
tive electronic components, such as control
un its, relays, radio, etc., as well as the battery
charger .
Battery replacement
The new ba ttery mu st have the same specifica­
tions and dimensions as the original equipmen t
battery .
Intelligent energy management in your vehicle is
responsible for dist ributing the electrical energy
throughout your vehicle¢
page 173. The inte lli­
gent ene rgy ma nagement system wi ll keep the
eng ine batte ry charged better the n ve hicles w ith­
ou t th is system . To make su re the addit io nal
e lec trica l energy is avail ab le on ce again after you
h a ve changed the battery, we recommend t hat
you insta ll batteries o f the same type an d manu­
facture on ly (t he same as those insta lled at the
time your veh icle was delive red). Spec ificat ions
are listed on the battery housing. Your author­
ized Audi dealer must code the battery in the en­
ergy management system to enab le you to use
the energy manageme nt functions correctly after
replacing the battery .
If it is not possible to use a battery of th is type,
the new battery must have the same capacity ,
voltage (12-volts) , ampe rage, construct ion and
p lug sealing.
When insta lling the battery, make sure the igni­
tion and all electrical consumers are tur ned off .
@ Note
Make sure the ventilation hose on the side of
the batte ry is connected, othe rw ise fumes or
battery acid can lea k out.
@ For the sake of the environment
Because of the prob lem of proper disposal of
a battery, we recommend your author ized
Audi dea le r change the battery fo r you. Bat­
t er ies con ta in su lf ur ic ac id a nd lead a nd must
always be disposed of prop erly i n comp lianc e
206
with a ll environmenta l re gu lations . Disposing
of veh icle batteries im properly is very danger­
ous to t he environment.
Windshield/headlight*
washer container
Fig. 177 En gin e compar tment: Cove r on the w inds hield
a n d head lig ht* was he r flu id conta iner
The washer fluid co nta iner is marked with the
symbol
Q on its cap ~ fig. 177, ¢ page 195,
fig. 1 71.
M N
-N ,.:
"' m
.. Before you check anythi ng i n the engine com ­
partment,
always read and heed all WARN­
INGS ¢ .& in Working in the engine compart­
ment on page 193.
.. Lift the fi ller cap to ngue to add w ashe r fl uid .
You c an f ill the containe r to t he top .
.. Press the ca p back on to the filler neck a fte r fill -
ing the contai ner.
Yo u c an find the reservo ir
capacity in t he table in
~page 244.
Clean water should be used when filling up . If
possible, use soft wate r to preve nt scaling on the
w ashe r jets. Alw ays add a glass cleane r solu tion
(wi th fros t protection in the win ter) .
@ Note
Do n ot mix engi ne coolan t antifree ze or any
o the r ad ditive s t o fill u p the wi ndshi eld wash­
er reservo ir.

Emergency situations
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
operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine con be started by con­
necting it to the battery of another vehicle .
If the engine should 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 jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently largecross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
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 avoid leaning
over the battery whenever possible.
-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 cables.
If you do not, this in-
238
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batteries.
- 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 rating . The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah" rating may cause an explo­
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 . The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion 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
r=> poge 193.
([) Note
-Applying a higher voltage booster battery
will cause 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 .

a:,
a:,
...... N r--. N ...... 0
0
LL 00
Automatic transmission . . . . . . . . . . . . . . . . . 81
Automatic Shift Lock (ASL) . . . . . . . . . . . . . 82
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Emergency mode . . . . . . . . . . . . . . . . . . . . . 86
Emergency release . . . . . . . . . . . . . . . . . . . . 87
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Manua l shift program . . . . . . . . . . . . . . . . . 85
Removal lock (ignition key) . . . . . . . . . . . . . 71
Selector lever . . . . . . . . . . . . . . . . . . . . . . . . 81
Automatic wipers . . . . . . . . . . . . . . . . . . . . . . 53
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 118
Average speed . . . . . . . . . . . . . . . . . . . . . . . . 22
Avoid damaging the vehicle . . . . . . . . . . . . . 175
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Battery location inside the luggage compart-
ment ..............................
203
Charge level . . . . . . . . . . . . . . . . . . . . . . . . 173
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Energy management . . . . . . . . . . . . . . . . . 173
Important warnings when working on the
battery . . . . . . . . . . . . . . . . . . . . . . . . . . . .
203
Jump starting . . . . . . . . . . . . . . . . . . . . . . . 238
Replac ing the battery . . . . . . . . . . . . . . . . 206
Work ing on the battery . . . . . . . . . . . . . . . 203
Before driving . . . . . . . . . . . . . . . . . . . . . . . . 111
Belt positioner . . . . . . . . . . . . . . . . . . . . . . . 125
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 128
Bio -ethanol (Fuel) . . . . . . . . . . . . . . . . . . . . . 189
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 188
Blower (automatic climate control) . . . . . . . . 68
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 158
Brake fluid
Changing the brake fluid . . . . . . . . . . . . . .
202
Checking the brake fluid l evel . . . . . . . . . . 202
Brake system
Anti-lock brak ing system . . . . . . . . . . . . . . .
17
Brake fluid specifications for refill and re­
placement . . . . . . . . . . . . . . . . . . . . . . . . .
202
Brake light defective . . . . . . . . . . . . . . . . . . 19
Brake power assist unit . . . . . . . . . . . . . . . 170
Brakes. .. .. .. ............... .. ..... 170
Ceramic brakes . . . . . . . . . . . . . . . . . . . . . . 170
Electromechan ical parking brake . . . . . . . . 76
Warning/indicator lights . . . . . . . . . . . . . . . 13
Worn brake pads symbol . . . . . . . . . . . . . . . 18
Index
Braking
Brake assist . . . . . . . . . . . . . . . . . . . . . . . .
167
Emergency braking function . . . . . . . . . . . . 77
braking guard . . . . . . . . . . . . . . . . . . . . . . . . . 88
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Break-in period
Brake pads .. .. .. .. ............. .. . .
Tires ..... .... .. .. ........ · · · · · · · · ·
Breaking in ... .. .. .. ............... . .
New tires
Bulbs
C
170
175
175
214
237
California Proposition 65 Warning . . . . . . . 194
Battery specific . . . . . . . . . . . . . . . . . . . . . 204
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Cargo area
refer to Luggage compartment ...... 63, 116
Catalytic converter . . . . . . . . . . . . . . . . . . . . 176
Center armrest . . . . . . . . . . . . . . . . . . . . . . . . 60
C en tral locking . . . . . . . . . . . . . . . . . . . . . . . .
27
Central locking switch . . . . . . . . . . . . . . . . . 31
Convenience key . . . . . . . . . . . . . . . . . . . . . . 30
Remote control key . . . . . . . . . . . . . . . . . . . 30
Ceramic brake rotors
New brake pads . . . . . . . . . . . . . . . . . . . . .
170
Certification . . . . . . . . . . . . . . . . . . . . . . . . . 249
Changing engine oil . . . . . . . . . . . . . . . . . . . 198
Checking
Engin e coolant level. . . . . . . . . . . . . . . . . .
199
Child restraints
Danger of using child restraints in the front
seat.... .. .. .. .. .. ............. ....
131
Where can I get add itiona l information
about child restra ints and their use? . . . .
166
Child restraint system anchors . . . . . . . . . . 163
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Impo rtant safety instructions for using child
safety seats . . . . . . . . . . . . . . . . . . . . . . . .
153
Installing a c hild restraint using the LATCH
system . . . . . . . . . . . . . . . . . . . . . . . . . . . .
165
251

a:,
a:,
...... N r--. N ...... 0
0
LL 00
Determin ing correct load limit . . . . . . . . . . 22 1
Dig ita l clock . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dig ita l compass . . . . . . . . . . . . . . . . . . . . . . . 55
Di mensions . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Dimming the rearview mirror . . . . . . . . . . . . 52
Doors emergency lock ing . . . . . . . . . . . . . . . . . . . . 32
D river information system . . . . . . . . . . . . . . . 2 1
Open doo r o r fron t lid wa rn ing . . . . . . . . . . 2 1
Outside temperature d isp lay. ... .. .... .. 21
Sound system display . . . . . . . . . . . . . . . . . 21
Dri ver seat
refer to Seat ing pos ition . . . . . . . . . . . . . . 112
Driving economically . . . . . . . . . . . . . . . . . . 177
Driving safe ly . . . . . . . . . . . . . . . . . . . . . . . . 111
D riving through wate r . . . . . . . . . . . . . . . . . 175
Driving t ime . . . . . . . . . . . . . . . . . . . . . . . . . . 22
D us t filte r
refer to Pollutant filte r (au toma tic A/C sys -
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Dynamic stee ring ............. 101, 167 , 17 1
E
E85 (Fue l) . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Easy entry function . . . . . . . . . . . . . . . . . . . . . 59
E ff iciency p rogr am . . . . . . . . . . . . . . . . . . . . . 24
Fu el economy messages . . . . . . . . . . . . . . . 24
M emory levels . . . . . . . . . . . . . . . . . . . . . . . 22
Other equipment . . . . . . . . . . . . . . . . . . . . . 24
E lect ro-mechan ica l powe r ass ist . . . . . . . . . 17 1
Electromechanica l parking brake
Emergency braking . . . . . . . . . . . . . . . . . . . 77
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 76
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Re leas ing and closing . . . . . . . . . . . . . . . . . 76
St arting assis t . . . . . . . . . . . . . . . . . . . . . . . 77
S tarting from res t . . . . . . . . . . . . . . . . . . . . 77
Starting off w ith a t railer . . . . . . . . . . . . . . . 77
Warning/indicator lights . . . . . . . . . . . . . . . 14
E lect ronic d ifferen tial lock
Wa rn in g/i nd ic ator lights . . . . . . . . . . . . . . . 16
Electronic Differential Lock . . . . . . . . . . . . . 167
E lect ronic diffe ren tial lock ( EDL)
Wa rning/indicator lights.. ... .. .. .... .. 1 7
E lect ronic immob ilizer . . . . . . . . . . . . . . . 10, 33
Index
El ectron ic powe r contro l
(EPC) warning/indicator light . . . . . . . . . . . 18
El ectron ic spee d lim ite r . . . . . . . . . . . . . . . . . 26
E lectron ic stabilization control
Spo rt mode . . . . . . . . . . . . . . . . . . . . . . . . 168
E lectron ic Stab ilization Contro l . . . . . . . . . . 167
El ectron ic Stab ilization Contro l (E SC)
War ning/ indica to r li ghts . . . . . . . . . . . . . . . 16
Emergency actuation
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Ign it io n key . . . . . . . . . . . . . . . . . . . . . . . . . 30
Emergency braking . . . . . . . . . . . . . . . . . . . . . 77
E mergency f lasher . . . . . . . . . . . . . . . . . . . . . 50
War ning/ in d ica to r li ghts . . . . . . . . . . . . . . . 20
Emergency key . . . . . . . . . . . . . . . . . . . . . . . . 28
Start ing engine . . . . . . . . . . . . . . . . . . . . . . 72
Emergency operation
Emergency braking function (parking brake) .7.7
Luggage compartment lid . . . . . . . . . . . . . . 34
Power top . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Emergency starting . . . . . . . . . . . . . . . . . . . 238
En ergy manage men t . . . . . . . . . . . . . . . . . . 173
B attery power . . . . . . . . . . . . . . . . . . . . . . . . 14
D rive r notific ation . . . . . . . . . . . . . . . . . . . . 14
E ngine
Compartment .. .. .. ................. 195
Coo lant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 99
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Start ing . . . . . . . . . . . . . . . . . . . . . . . . . 71, 73
Starting wi th ju mpe r cab les . . . . . . . . . . . 238
Stopping . ... .. . ... .... . ..... ... .. 7 3, 74
E ngine compartment . . . . . . . . . . . . . . . . . . 1 95
S afe ty in str uctions . . . . . . . . . . . . . . . . . . . 193
Working the engi ne compa rtment . . . . . . 193
Engine coolant Indicator light . . . . . . . . . . . . . . . . . . . . . . . 15
Engine coolant system . . . . . . . . . . . . . . . . . 199
Adding coolant . . . . . . . . . . . . . . . . . . . . . . 200
Checking coolant level . . . . . . . . . . . . . . . . 199
Checking the engine coo lant level . . . . . . . 199
Radiator fan . . . . . . . . . . . . . . . . . . . . . . . . 201
Engine coolant temperature
Temperature gauge . . . . . . . . . . . . . . . . . . . . 8
E ngine hoo d
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
How to release the hood . . . . . . . . . . . . . . 193
253

Index
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Addit ives . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Check oil level . . . . . . . . . . . . . . . . . . . . . . 197
Consumption . . . . . . . . . . . . . . . . . . . . . . . 197
Indicator light . . . . . . . . . . . . . . . . . . . . 15, 18
Oi l consumption . . . . . . . . . . . . . . . . . . . . . 196
Pressure malfunction . . . . . . . . . . . . . . . . . 15
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 18
Specification and viscosity . . . . . . . . . . . . . 195
Engine speed limitation . . . . . . . . . . . . . . . . . 18
Environment Catalytic converter . . . . . . . . . . . . . . . . . . . 176
Disposing of your vehicle battery . . . . . . . 206
Driving at high speeds . . . . . . . . . . . . . . . . 177
Fuel ...... .... ........... ........ . . 190
Leaks under your vehicle . . . . . . . . . . . . . . 193
L ett ing the veh icle stand and warm up . . . 177
Proper disposal of drained brake fluid . . . 202
Proper disposal of drained engine coolant 200
Proper disposal of drained engine oil 197, 198
Recycling used engine oil . . . . . . . . . . . . . 197
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 188
What should I do with an old battery? . . . 206
EPC
refer to Electronic power control . . . . . . . . 18
Ethyl alcohol (Fuel) . . . . . . . . . . . . . . . . . . . . 189
E vent Data Recorder (EDR) . . . . . . . . . . . . . 169
Expansion tank . . . . . . . . . . . . . . . . . . . . . . . 199
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 48
Exterior mirrors Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
He ating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
F
Fan
Radiator 201
Fa sten ing
Booster seats . . . . . . . . . . . . . . . . . . . . . . . 158
Convertible child safety seats . . . . . . . . . . 156
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 155
f lexible fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Fog lights/rear fog light(s) . . . . . . . . . . . . . . 48
Folding the rear seats . . . . . . . . . . . . . . . . . . . 64
254
Foot pedals .......................... 116
For the sake of the environment Environmentally-friendly driving . . . . . . . 177
Gasoline fumes and the env ironment . . . . 190
Letting the engine warm up . . . . . . . . . 71 , 73
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Saving fuel by early upshifting . . . . . . . . . . . 9
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . . . 134
How they work . . . . . . . . . . . . . . . . . . . . . . 138
Frontal collisions and the laws of physics . . 123
Front passenger's door emergency locking . . 32
Front seats Adjust ing . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Child restraints in the front seat........ 131
Upper cabin heating . . . . . . . . . . . . . . . . . . . 69
Fuel Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . 188
B lended gasol ine . . . . . . . . . . . . . . . . . . . . 188
Consumption . . . . . . . . . . . . . . . . . . . . . . . . 22
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gasoline additives . . . . . . . . . . . . . . . . . . . 190
Low fuel level symbol . . . . . . . . . . . . . . . . . 18
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 188
Recommendation . . . . . . . . . . . . . . . . . . . . 188
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Saving fuel ......................... 177
T ank capacity . . . . . . . . . . . . . . . . . . . . . . . 244
Tank system . . . . . . . . . . . . . . . . . . . . . . . . . 18
Unlocking the fuel filler flap by hand . . . . 192
Fuel economy messages (efficiency program) .24
F u el filler flap
Unlocking the fuel filler flap by hand . . . . 192
Fuses Assignment ... .. .. .. ....... 234, 235, 236
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 234
G
Garage door opene r (Home Link) . . . . . . . . . . 36
Gas discharge lamps ................... 237
Gauges Engine coolant temperature . . . . . . . . . . . . . 8
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General illustration Instruments and controls . . . . . . . . . . . . . . . 6