check engine light AUDI Q3 2018 User Guide

Fuses and bulbs
Electrical fuses
Changing fuses
A fuse that has blown will have metal strips that have burned through .
Fig. 158 Driver's side of the cockpit: fold ing the storage
co mpartme nt dow n
Fig. 159 Engine compartment: removing the fuse pane l
cover
The fuses are located in the driver's side footwell
behind the storage compartment and in the en­
gine compartment .
Preparations
.. Switch the ign ition and all electr ical equipment
off .
.. Check the following table to see which fuse be-
longs to the equipment .
Fuses behind the storage compartment
.. Open the storage compartment .
.. Press the left and right retainers inward and
fold the compartment all the way down
a ¢fig. 158 . co ...... N ~ Fuses in the engine compartment
'"' 0 g .. Open the hood ¢ page 155.
co
Fuses and bulbs
.. To release the fuse panel cover, slide both slid­
ing retainers at the left and right forward
¢ fig. 159 .
.. Remove the fuse panel cover .
Replacing fuses
The clamp is located below the fuses behind the
storage compartment (driver's side) .
.. Fold th is compartment all the way down and
remove the clamp from the holder .
.. Remove the colored plastic clip from the fuse
panel, if necessary . You can dispose of the plas­
tic clip .
.. Remove the fuse using the clamp .
.. Replace the blown fuse only with an identical
new one .
.. Install the cover.
Fuse color identification
Color Current rating
in amps
Black 1
Purple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
White or transparent 25
Green 30
Orange 40
A WARNING
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rat ing .
This can cause damage to the electr ical sys­
tem and increases the risk of fire.
(D Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as poss ible by an authorized
Audi dealer or authorized Audi Service Facili­
ty.
199

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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
CD Note
Vehicles with an automatic transmission
cannot 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 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 large cross
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-
Emergency situations
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
qpage 155.
CD 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.
203

Index
Cleaning the tail lights . . . . . . . . . . . . . . . . . 186
Climate control system Drive se lect. . . . . . . . . . . . . . . . . . . . . . . . . . 8 1
Climate control system (automatic) . . . . . . . 51
AU TO (automatic mode) . . . . . . . . . . . . . . . 54
Changing the tempe rature unit . . . . . . . . . 55
Descr ipt io n . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Key recogn ition . ............. .... .. .. 5 1
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Synchro nizing . . . . . . . . . . . . . . . . . . . . . . . . 54
Climate control system (manual) Descr ipt io n . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2
Closing Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Pano rama glass roof . . . . . . . . . . . . . . . . . . 31
W indows .. .... .................. ... 30
Closing/opening
refer to Unlocking/locking . . . . . . . . . . . . . 24
Cockpit (overview) . . . . . . . . . . . . . . . . . . . . . . 6
Com ing home . . . . . . . . . . . . . . . . . . . . . . . . . 34
Compact spare tire . . . . . . . . . . . . . . . . . . . . 197
Compartments . . . . . . . . . . . . . . . . . . . . . 45, 46
Compass in the mirror . . . . . . . . . . . . . . . . . . 40
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Consumer Info rmat ion ............. 104, 2 12
Consumpt ion (f ue l) . . . . . . . . . . . . . . . . . . . . 19
Cont acti ng NH TSA . . . . . . . . . . . . . . . . . . . . 104
Convenience key Starting the engi ne . . . . . . . . . . . . . . . . . . . 61
S topping the engine . . . . . . . . . . . . . . . . . . 62
Sw itchi ng the ignition on . . . . . . . . . . . . . . 6 1
Unlo cking/lock ing . . . . . . . . . . . . . . . . . . . . 24
Convenience opening/closing . . . . . . . . . . . . 31
Convertible chi ld safety seats . . . . . . . . . . . 141
Conve rt ible locking retractor
Activa ting . . . . . . . . . . . . . . . . . . . . . . . . . . 146
D eactivating . . . . . . . . . . . . . . . . . . . . . . . . 146
Using to secure a child safety seat . . . . . . 146
Cooling mode (automatic climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Cooling mode (manual climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Cooling system Adding coolant . . . . . . . . . . . . . . . . . . . . . . 162
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
218
Coolant level checking . . . . . . . . . . . . . . . . 162
Coo lant temperature . . . . . . . . . . . . . . . . . . . 8
C rossing water . . . . . . . . . . . . . . . . . . . . . 5 7, 66
Cruise control system . . . . . . . . . . . . . . . . . . . 76
Cup ho lders . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
C u rrent consumpt ion . . . . . . . . . . . . . . . . . . . 19
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . . . . 95
Date.... ... .. .. .. .. .. ... . .. .... ... .. .. 9
Dayt ime run ning lights . . . . . . . . . . . . . . . . . 33
Declaration of compliance . . . . . . . . . . . . . . 215
Defros ting (w indows)
Automat ic climate contro l system . . . . . . . 55
Manua l cl imate control system . . . . . . . . . . 52
D EF (instrument clus ter) . . . . . . . . . . . . . . . . . 9
Dete rm ining correct load limit . . . . . . . . . . 180
D igital compass . . . . . . . . . . . . . . . . . . . . . . . 40
D imens ions . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Dimming t he exterior mirro rs . . . . . . . . . . . . 36
D imm ing the rearv iew mi rror . . . . . . . . . . . . 3 6
D isplay
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Doors Child safe ty lo ck . . . . . . . . . . . . . . . . . . . . . . 30
E mergency locking . . . . . . . . . . . . . . . . . . . . 26
Driver informat ion system
D river messages . . . . . . . . . . . . . . . . . . . . . . 19
E ffic iency program . . . . . . . . . . . . . . . . . . . . 20
On-board comp uter . . . . . . . . . . . . . . . . . . . 19
Operat ing using t he m ultif unction steer ing
whee l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operat ing using windsh ield wiper lever . . . 18
Overv iew . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Se rvice interva l display . . . . . . . . . . . . . . . 165
D rive r se at
refer to Seating posi tion . . . . . . . . . . . . . . . 98
D rive select
refer to Aud i d rive select . . . . . . . . . . . . . . . 80
Driving econom ically . . . . . . . . . . . . . . . . . . . 57
Driving off road . . . . . . . . . . . . . . . . . . . . . . . . 65
Drivi ng safe ly . . . . . . . . . . . . . . . . . . . . . . . . . 97
D riving through water .. ... . .. .... ... 57, 66
D rivi ng time . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Dust filter
refer to Pollutant filter . . . . . . . . . . . . . . . . S 1
E
EDL
refer to Electronic Differential Lock . . . . . . 89
Efficiency program
Fuel economy messages . . . . . . . . . . . . . . .
21
Other equipment . . . . . . . . . . . . . . . . . . . . . 20
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Electromechanical parking brake . . . . . . . . . 63
Electromechanical steering . . . . . . . . . . . . . . 93
E lectronic Differential Lock . . . . . . . . . . . . . .
89
Electronic immobilizer . . . . . . . . . . . . . . . . . . 23
Electronic stabilization control . . . . . . . . . . .
89
Electronic Stabilization Control
Hill descent assist . . . . . . . . . . . . . . . . . . . .
91
Offroad mode . . . . . . . . . . . . . . . . . . . . . . . . 90
Emergency assistance . . . . . . . . . . . . . . . . . 191
Emergency braking function . . . . . . . . . . . . . 64
Emergency flashers . . . . . . . . . . . . . . . . . . . . 34
Emergency locking the front passenger's door .26
Emergency operation
Front passenger's door . . . . . . . . . . . . . . . .
26
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . 155
Luggage compartment lid . . . . . . . . . . . . . . 29
Panorama glass roof . . . . . . . . . . . . . . . . . . 32
Sunshade (roof) . . . . . . . . . . . . . . . . . . . . . . 32
Emergency release
Selector lever . . . . . . . . . . . . . . . . . . . . . . . .
72
E mergency starting . . . . . . . . . . . . . . . . . . . 203
Emergency unlocking/locking
On lock cylinder . . . . . . . . . . . . . . . . . . . . . .
26
Emissions control system
Catalytic converter . . . . . . . . . . . . . . . . . . .
155
Energy management . . . . . . . . . . . . . . . . . . . 94
Engine
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
162
Starting/stopping (convenience key) . . 61, 62
Starting/stopping (ignition lock) . . . . . . . . 60
Starting with jumper cables . . . . . . . . . . . 203
Stopping (ign ition lock) . . . . . . . . . . . . . . . .
60
Engine compartment . . . . . . . . . . . . . . . . . . 155
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Index
Checking the engine oil level . . . . . . . . . . . 160
Dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Economy... ... .. .. ................. 160
Oil consumption . . . . . . . . . . . . . . . . . . . . . 159
Oil grades . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Specification and viscosity . . . . . . . . . . . . . 158
Engine speed limitation (indicator light) 15
Environment
Proper disposal of drained engine oil . . . .
161
Unleaded gasoline . . . . . . . . . . . . . . . . . . . 152
EPC (engine control) . . . . . . . . . . . . . . . . . . . . 14
ESC
refer to Electronic stabilization control . . . 89
Event Data Recorder (EDR) . . . . . . . . . . . . . . 95
Exterior lighting
33
Exterior mirrors Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
D. . 1mm1ng .. .. .. .. .. ............... .. . 36
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
142
Convertible child safety seats . . . . . . . . . . 141
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 140
Federal Communications Commission (FCC) 215
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Folding the rear seats. . . . . . . . . . . . . . . . . . . 47
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 101
For the sake of the environment
Environmentally-friendly driving . . . . . . . .
57
Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . SO
Freeze protection Coo lant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
162
Front airbags
Description . . . . . . . . . . . . . . . . . . . . . . . . .
118
How they work . . . . . . . . . . . . . . . . . . . . . . 122
Frontal collisions and the laws of physics . . 107
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Child restraints in the front seat ...... . .
Fuel
. . ...... ... .. .. ... ....... ... .. . .
115
152
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Blended gasoline . . . . . . . . . . . . . . . . . . . . 152
219