On-Board Diagnostic system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) in the instrument cluster
~ page 12, fig. 7 is part of the On-Board Diagnostic (OBD II) system.
The warn ing/ind icator light illuminates when the ignition is switched
on and goes out after the engine starts and the idle has stabilized.
This indicat es that the MIL is working properly.
If the light does not go out after the engine is started, or illuminates
while you are driving , a malfunction may exist in the engine system.
If the light illuminates, the catalytic co nverter could be damaged .
Continue driving
with reduced power (avoiding sustained high
speeds and/or rapid accelerations) and have the condition corrected.
Contact your authorized Audi dealer .
If the light illuminates, the electronic speed limiter may also be
malfunctioning. For more information~
page 23, "Electronic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate ~
page 275. •
On-Board Diagnostics
Contro ls a nd e quip
m en t
Fig . 15 Locat ion of
Data Link Connector ( DLC )
Vehicle OP-eration
Driver information display
On-Board Diagnostics monitors the components of your emission
control system. Each monitored component in your engine system
has been assigned a code. In case of a malfunction, the component
will be identified and the fault stored as a code in the control module
memory .
The MIL light may also illuminate if there is a leak in the on-board fue l
vapor recovery system. If the light illuminates after a refuelling, stop
the vehicle and make sure the fuel filler cap is properly closed
~ page 275 .
In order to make an accurate diagnosis, the stored data can only be
displayed using specia l diagnostic equipment (generic scan too l for
OBD).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the hood release~ fig . 15.
Your authorized Audi dealer or a qualified service station can inter
pret the code and perform the necessary repair.•
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h). This is less than the
maximum speed of your vehicle . To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, your vehicle also has an electronic speed limiter. The elec
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating. For more information ~
page 307.
If the engine con trol unit receives faulty vehicle roadspeed signals,
the Malfunction Indicator Lamp (MIL) will illuminate. If this
occurs, contact the nearest authorized Audi dealer for ass istance . .,.
Vehicle care Do-it-yourselt service iTechnical data
In order to fill the tank properly while protecting the environment,
please follow this refueling procedure carefully.
& WARNING
Under normal operating conditions, never carry additional fuel
containers in your car. Gas canisters and other containers used to
transport fuel can be dangerous. Such containers, full or empty,
may leak and could cause a fire in a collision. If you must transport
fuel to use for your lawn mower, snow blower, etc., be very careful
and always observe local and state laws regarding the use, trans
portation and storage of such fuel containers. Make certain the
container meets industry standards (ANSI /ASTM F852 -86).
0 Note
Never drive your vehicle until the fuel tank is completely empty . The
irregular supply of fuel can cause misfiring. Gasoline could enter the
exhaust system and damage the catalytic converter. •
Refuelling
The fuel filler flap is unlocked from a button in the
driver's door.
Fig . 202 Driver's
door: Unlock ing fuel
filler flap
Vehicle OP-eration
Fuel supply and filling your fuel tank
Fig. 203 Fuel cap
hooked on the opened
f uel filler flap
When adding fuel , the ignition and any cellular phones in the
vehicle must be switched
off.
Taking the fuel cap off
- To open the fuel filler flap, press the button~ fig. 202.
- Unscrew fuel filler cap counter-clockwise and hang it on
the fuel filler flap~ fig . 203.
Refuelling procedure
- Insert the fue l nozzle from the gasoline pump into the
fuel filler neck as far as it will go.
- Select a medium refuelling rate so that the nozzle
switches off automatically when the tank is full.
Putting the fuel cap back on
- After filling your tank, twist the fuel filler cap clockwise
until you hear a definite click .
- Close the fuel filler flap.
To avo id fuel spi lling or evaporating from the fuel tank always close
fuel filler cap properly and completely . An improperly closed fuel
filler cap may also cause the MIL lamp~
page 23 to come on. ._.
Vehicle care Do-it-yourselt service iTechnical data
___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ ffllll
Unleaded fuel .... .... ... .. .. . .. . 273
What should I do with an old battery? ...
294
EPC
See E lectronic power control ........ 14
ESP
See Electronic stabilizat ion program (ESP)
14
Event Data Recorder (EDR) ............ 242
Exhaust tail pipes
Cleaning ................ .... .... 266
Expansion tank ..................... 286
Ex terior lighting in the mirror housing ... 61
Eyeglass es compa rtment .............. 9S
F
Fan
Radiator ............... .. .. .. .. . 288
Fastening Booster seats .................... 227
Convertible child safety seats .. ..... 225
Infant seats .............. .... .. . 224
Fastening eyelets .................... 84
Flat tire Changing . .. ........... ...... .. . 320
Floor mats ......................... 182
Fog lights ................. ........ . 60
Folding master key with remote control .. 3 7
Foot pedals .. .. ... ........ .. .. .. .. . 182
For the sake of the environment
Gasoline fumes and the environment 27S
Letting your engine warm up ...... . 109
Controls and equip
ment Safety first
Reducing engine noise
by early upshifting
8
Refueling . .. ..... .. .. .. ......... 2 7 5
Saving fuel by early upshifting ........ 8
Using the rear window defogger ..... 101
Front airbags Descript ion . ...... .. .. .. .. ....... 201
How they work ................. .. 206
Front ashtray ........................ 91
Front fog lights .. ................. .. . 60
Front seats ... .. ..... ...... ...... .. . 75
Adjusting .. .. .. ........ ......... 179
Chi ld restraints in the front seat . ... 199
Fro nta l collisions and the laws of physics 188
Fuel Additives .... .. .... .. .. ......... 273
Blended gasoline ................. 273
Consumption ............ .... .. .. . 34
Filler neck ....................... 274
Fuel gauge ...... ............. .... 10
Gasoline ..................... ... 273
Gasoline additives ................ 274
Low fuel leve l . . . . . . . . . . . . . . . . . 10, 30
Octane rating . .. ................. 273
Recommendation . ......... .... .. 273
Refuelling ....... .... .. .. ....... 275
Reserve .................. ... .. .. . 10
T ank capacity .................... 343
Unlocking the fuel filler flap by hand . 277
Fuses Replacing ....................... 327
G
Garage door opener (Homelink ®) ...... 171
Gas discharge lamps ................. 330
Gauges Engine coolant temperature .......... 8
Fuel gauge .. .... .. .. .. ........... 10
Speedometer ............ ... ... ... 10
T achometer ... .................... 9
T rip odometer .................. .. 10
General illust ration
Instruments and controls ... .. . ... .. . 7
Glossary of tire and loading terminology 296
Glove compartment ... ... ... ..... .... 94
cd changer .... .. .. ............... 94
emergency unlocking ........... ... 94
Valet key function .. .... ........... 40
Gross Veh icle We ight Rating (GVWR) ... 341
H
Head restraints .................. .. . 181
Adjusting ............... ... ... .. 181
Front seats ... .................... 81
Rear seats ....... ................ 81
Headlight washer reservoir . .......... 294
Headlights .................. .. .. .. .. 58
Adaptive Light ...... ...... .. .. .. .. 61
Defective . .. .. .... ............... 21
Front fog lights ....... ..... .... ... 60
Headlight range control defect ive .... 31
Switching off .............. ....... 58
Switching on ................... .. 58
Vehicle operation Vehicle care Do-it-yourself service Technical data