Page 21 of 390

& WARNING (continued)
extreme caution when working under the hood => page 289,
"Engine compartment".
[ i ) Tips
Many functions are monitored by the Auto -Check system
=>
page 30. Malfunctions or faults wil l be identified either with a red
symbo l (pr ior ity 1 -Danger!) or with a yellow symbol (priority 2 -
Warning). •
Electronic power control r
This warning/indicator light monitors the electronic
power control.
The warning/indicator light (E lectronic Power Control) illumi -
nates when you turn on the ignition as a function check.
[ i ) Tips
If this warning/indicator light illuminates while you are driving, then
there is a malfunction in the engine electronics . Have the malfunc
tion corrected as soon as possible by your authorized Audi dealer or
qualified repair faci lity .•
Generator 0
This warning/indicator light detects a malfunction in the
generator or in the vehicle's electrical system.
The d warning/indicator light illuminates when you switch on the
ign ition and mus t go out after the engine has started .
If the
d warning/indicator light illuminates while you are driving,
you shou ld contact your authorized Audi dealer. Since the vehicle
Controls and equip
ment
Instruments and warning /indi cator lights
battery is discharging, you shou ld switch off any unnecessary elec
trical consumers (for examp le, the air conditioner).
0 Note
If the _f_ warning/indicator light (malfunction in the engine coo ling
system) in the instrument cluster shou ld illuminate=>
page 33, stop
the vehicle and turn off the engine . The water pump is not work ing
- this can cause engine damage. •
Electronic stabilization program (ESP)
This warning/indicator light monitors the electronic stabi
lization program.
The warning/indicator light has the following functions:
• I t blinks while you are driving when the ESP is working.
• It illuminates when you switch on the ignition for approximately
2 seconds as a function check.
• It il luminates when there is a malfunction in the ESP.
• It illuminates when ESP or ASR (Anti-S lip Regulation) is deacti
vated .
• It illuminates if there is a malfunction in the ABS, since the ESP
is part of the ABS system.
If the battery terminals were disconnected and re-connected, the
vehicle was jump started or the battery is
very weak, the ESP sensor
system goes through a learning process for the first few yards. The
warning/indicator light i lluminates . The warning/indicator light
goes out as soon as the learning process is complete.
If the ESP warning/indicator light illuminates and stays on after you
have started the engine, this may mean that the control system has
te mporarily switched off the ESP. If this is case, you can reactivate
the ESP by turning the ignition off and then on again . The
warning/indicator light should go out to show that the system is
fully functional again.
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I • •
Page 312 of 390

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
& WARNING (continued)
• Make sure the vent hose is always attached to the opening on
the side of the battery.
• Never use batteries which are damaged. There is the danger of
an explosion! Always replace a damaged battery.
& WARNING
California Proposition 65 Warning:
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive problems. Wash hands after handling.
0 Note
• Do not disconnect the vehicle battery when the ignition is
switched on or when the engine is running, otherwise, you will
damage electronic components in the electrical system .
• When working on the engine, protect the battery housing from
ultraviolet (UV) rays by not parking the vehicle in direct sunlight .
• If your vehicle is going to stand for a long period of time without
being driven , protect the battery from "freezing", otherwise it will
be damaged and will then have to be replaced. •
Battery charging
Starting the engine requires a well charged battery.
Fig. 238 Engine
compartment : Connec
tors for charger and
jumper cables
Always read and heed all WARNINGS below=> & and=> &
in "Working on the battery" on page 308.
-Turn off the ignition and all electrical consumers.
- Make sure the area is well ventilated when you charge
the battery.
- Open the hood =>
page 296.
-Open the red cover on the positive pole=> fig. 238.
- Connect the charger connectors according to the instruc-
tions to the
jump start bolts. (Bolts under the red cover=
"positive", Bolts with hex head= "negative").
- Only now plug the mains lead for the charging equip
ment into the wall outlet and turn it on =>
&-
- Make sure the charging rate is not over 30 amps/14.8
Volt.
- When the battery is fully charged: Turn the charging
equipment off and remove the mains lead from the wall
outlet. .,_
Page 354 of 390

-Emerg ency situation s PW...__-=---=---------------
& WARN ING (c ontinu ed )
• Bef ore you chec k anything in the engin e compartment , always
re ad and h eed all W ARNINGS =>
page 289, "Engine compa rtment".
0 Note
• Applying a higher voltage booster battery wil l cause expensive
damage to sensitive electronic components, such as contro l units,
relays, radio, e tc.
• There must be no electrical contact between the vehicles as
otherwise current could already start to flow as soon as the positive
( + ) terminals are connected .
[ i ] Tip s
• The discharged battery must be properly connected to the
vehic le's e lectrical system. When jump starting or charging the
battery, never connect the negative ground cable to the battery
negative pos t because the battery manager system must be ab le to
detect the battery's state of charge . Always connect the negative
ground cable to the negat ive ground post of the battery manager
control unit. •
Use of jumper cables
Make sure to connect the jumper c able clamps in exac tly
the order described below!
F ig . 26 1 Engin e
co mpartm ent : Co nnec
to rs for ju mp er ca ble s
and cha rger
F ig . 2 62 Jump starti ng
w ith th e battery of
anot her veh icle: A -
d isc harg ed veh ic le
b att ery, B -boost er
batt ery
The proced ure descr ibed below fo r connecti ng jumper
cables is int ended to prov ide a j ump start f or y our vehicle .
Vehi cle with dis charg ed battery:
- Turn off lights and accessories, move lever of automatic
transmission to
N (Neutral) or P (Par k) and set parking
brake .
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