Intelligent technology
--------------------------------------------------' "---.L==--
Tire chains
W here tire chains are mandatory on certain roads, this normally also
applies to vehicles with a ll whee l drive =>
page 300, "Snow chains" .
Replacing wheels/tire s
Vehicles with all wheel drive must a lways have tires of the same size .
Also avoid t ires with different tread de pt hs. For details see page
=>
page 295, "New tires and rep lacing tires and wheels" .
Off-Road driving?
Your Audi does not have enough ground clearance to be used as a n
off- road vehicle. It is the refore best t o avoid ro ugh trac ks and uneven
terrain as muc h as poss ible . Also refer to=>
page 239 .
& WARNING
Always adjust your driving to road and traffic conditions. Do not
let the extra safety afforded by all wheel drive tempt you into
taking extra risks.
• Although the all wheel drive is very eff ective , alway s
remember that braking capacity is limited by tire traction. You
should therefore not drive at excess ive s peeds on icy or slippery
road surfaces .
• On wet road surfaces, be careful not to drive too fast because
the front wheels could begin to slide on top of the water (aqua-
planing ). If this should occur, you will have no warning from a
sudden increase in eng ine speed as with a front-wheel drive
vehicle. Always drive at speeds which are suited to the road condi -
tions - risk of crash. •
Controls and equip-
ment
Safety first Vehicle operation
Energy management
Starting ability is optimized
Energy manageme nt contr ols the distributi on of elec-
trical energy and thus optimizes the availability of elec-
trical energy f or star ting the engin e.
If a vehicle with a conventiona l energy system is not dr iven for a long
per iod of time, t he bat tery is disch ar ged by idling cur rent consume rs
(e .g. immob ilizer) . In certain circumstances it can result in there
being insuffic ien t energy ava ilab le t o start t he eng ine .
Inte lligent energy management in your vehi cle hand les the d istribu -
t ion of e lectrical energy . Starting ability is ma rkedly improved and
the life of the battery is extended.
Basically, energy management consists of
battery diagnos is, idling
current management
an d dynami c energy management .
Battery diagnosis
Batte ry diagnosis con t inuously d ete rmi nes t he sta te of t he batte ry.
Sensors dete rm ine battery voltage, battery current and battery
t empe rat ure. This de t ermine s the cur rent st ate of cha rge and t he
power of the battery.
Idling current management
Id ling current management reduces energy consumption wh ile the
vehicle is st anding. W ith t he igni t ion switch ed off, it contr ols t he
energy supp ly to the var io us elect rical components. Data from
batt ery diag nosis is considered .
Depend ing on the battery 's state of charge, individual consumers a re
gradually t urned off to pr event excessive d ischa rge of the battery an d
t hus main t ain start ing capab ility.
Dynamic energy management
Whi le the vehicle is being dr iven, dynamic energy management
dis t ributes the energy ge nerated acco rding t o the needs of t he ind i-
Vehicle care Do-it-yourself service Technical data
To Next Page
Loading...
