coolant temperature AUDI A3 2011 Owner´s Manual

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• If, in an emergency, only water can be added, the correct ratio
between water and antifreeze=>
page 234 must be restored as soon
as possible.
~ For the sak e of the environment
Ora i ned coolant should not be reused . Always dispose of used coolant
while observing all environmental regulations .•
Radiator fan
The radiator fan switches on automatically by itself.
T he electric radiator fan is controlled by thermoswitches that switch
on and off depending on coolant a nd engine compartment tempera­
tures.
An auxilia ry e lectr ic rad iator fan* sw itches on a nd off depend ing on
coo lant temperature and other vehicle operation cond itions .
After switch ing off t he engine, the auxiliary fan -even with the igni­
tion off -can continue running for up to 10 minutes . It can even
switch on again later by itself=>& , if
• the temperature of the engine coolant rises due to the hea t build­
up from the engine in the engine compartment, or
• the engine compar tment hea ts up because the vehi cle is parked in
intense sunlight.
& WARNING
• To reduce the risk of personal injur y never tou ch the radi ator
fan .
• The auxiliary ele ctric fan i s temperatur e controll ed and can
switch on sudd enly even wh en the engine is not running .
• The auxiliary radiator f an swit che s on aut omati cally when the
engine coolant reaches a certain temp eratur e and w ill continue to
run until the coolant temperature drop s. •
Vehicle OP-eration
Brake fluid
Checking brake fluid level
The brake fluid level can be checke d with a quick glance.
Fig. 167 Eng ine
compartment : b rak e
fl uid res ervoi r
Before you check a nything in t he engine compartment ,
always read and heed all WARNINGS~ & in "Working in
the eng ine compartment" on
page 226 .
-Read the brake fluid level from the bra ke fluid reservoir.
The brake fluid level must be between the "MIN" and
"MAX" markings ~ fig . 167 .
The brake fluid reservoir is located at the rear partition of the engine
compartment on the left side=>
page 227.
The fluid level may drop
slightly after some time due to the auto­
m atic adjus tment of the brake pads. This is not cause for alarm .
If the brake fluid level falls
considerably below the "MIN" mark, t he
brake warning/ind icator light (U .S. models :
BRAKE, Canadian mode ls:
ill ) will come on=> page 15 and=> page 32. Do not continue to
operate the vehicle . The complete brake system should be thorough ly
chec ked by an au thor ized Aud i deale r o r other qualified facility and
the cause corrected. If the brake fluid leve l is too low, the brake .,,_
Vehicle care Do-it-yourselt service iTechnical data

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& WARNING (co ntinued )
been remo ved. The radiator fan switches on automatically when
the coolant reache s a certain temperature and will continue to run
until the coolant temperatu re drops.
• Always remove the ign ition key before anyone gets under the
vehicle.
• Alway s support your v ehicle w ith safety stands if it i s nece ssary
to work underneath the vehicle. The jack supplied with the vehicle
is not adequate for th is purpose and could collapse causing
serious personal injury.
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the vehicle is on level ground , that
the wheels are always securely blocked and that the engine cannot be started.
• Always make sure the transmi ssion selector lever (automatic
transmission) is in "P" (Park position ) (automatic transmission)
or Neutral (manual transmission) and the hand brake is firmly
applied.
'i> For the sake of the environment
• Chang ing the engine settings will adversely affect emiss ion levels.
Thi s is detr imenta l to the environme nt and increases fue l co nsump ­
tion .
• Alw ays obse rve enviro nmen tal regula tion s when dis pos ing of o ld
eng ine oil, used brake fl uid, d irty engine coo lant, spent batter ies or
wo rn out t ires .
• Undeployed a irbag modules and pretensione rs m ight be classi fied
a s Pe rchlo ra te Ma ter ia l -s pec ia l han dlin g m ay apply , see
www.dtsc.ca.gov/hazardouswaste/perchlorate. When the vehicle or
part s of th e re st ra int system i ncludi ng air bag modu les s afe ty belts
with pretens ioners are scrapped, all applicable laws and regulat ions
must be observe d. Yo ur a uthor ized Au di dealer is f amiliar wi th these
requirements and we recommend that you have your dealer perform
this service for yo u.•
Safety first
Additional accessories,
modifications and parts
replacement
Additional accessories and parts
replacement
Always co nsult an autho riz ed Audi d ealer bef ore
p urchasing acces sories.
Yo ur vehicle incorporates the latest safety design feat ures ens uring a
high standard of active and pass ive safety .
Th is safety could be compromised by non-approved changes to the
veh icle . F o r th is reaso n, if p arts have to be rep la ce d , ple ase obse rve
the following points when installing addit ional accessories:
Approved Audi accessories an d genuine A udi parts are avai lable from
au thori zed Aud i dea le rs .
These dea lers a lso have the necessary facilities, tools and tra ined
specialists to i nstall t he pa rts and ac cesso ries properly.
& WARNING
Using the wrong spare parts non-approved accessories can cause
damage to the vehicle and serious per sonal injury.
• Use only accessories expressly approved by Audi and genuine
Audi spare parts
• These parts and accessories have been specially designed to be
used on your vehicle.
• Never install accessories such as telephone cradles or beverage
holder s on airbag covers or within the airbag deployment zones .
Doing so will increase the risk of injury if airbags are triggered in
an accident!
• Before you check anything
in the engine compartment, always
read and heed all WARNINGS~
page 218. .,
Do-it,yourself service Technical data

------------------------------------------~A~ LE P '.!:h ~a~ b~e~ t~ic ~a~ l~ in~ d ~ e~x ~ _lffl'II
Coolant system ....... ... .. .. .. .. .. . 234
Cooling System
Expansion tank .................. 235
Cru ise control .............. ... ..... 110
Changing speed ................. . 111
Presetting your speed .......... .. . 111
Switching off ............. .. .... . 112
Switching on ........... ......... 110
Warning/indicator lights ... .... .... 14
Cup holder ............ ...... .. .. .. .. 89
Cup holders front ........ ...... .. .. .. .. .. .. .. 89
Current fuel mileage ................ .. 21
D
Damp ing
See Audi magnetic ride ......... ... 112
Data ....... .... ...... .. .... .. .. .. . 296
Data recorder ................. .. ... 188
Date display .. .. .. ............... .... . 9
Daytime running lights ............... . S6
Daytime running lights (Canada) ........ 56
Declaration of compliance Cell phone package ............ .. . 303
Electronic immobilizer ... .. .. .. .. . 303
Homel ink® un iversal remote control . 303
Remote control key ............... 303
Ti re pressure monitoring system ... . 303
def What does this mean when it appears in
the trip odometer display? ......... 10
Defective light bulb warn ing . .. .. .. .. .. 36
Controls and equip­
ment Safety first
Defogg
ing the windows ....... .... ... . 98
Defrosting the windows ............... 98
Defrosting/defogging w indows ..... ... 101
Determining correct load limit . ...... .. 254
Diesel engine Add ing engine oil .. .... .. ......... 233
Changing engine oil .. .. ........... 233
Engine oil . ... .... .... ........... 233
Diesel fuel .. .................... ... 220
Diesel particulate filter. . . . . . . . . . . 34, 199
Digital clock . .. ............. .. .... .... 9
Setting the time ............ ....... 9
Digital compass . ................ ... . 71
Dimensions ..... .... ............... 295
Dipstick Reading the dipstick p roperly ..... .. 231
Direct Shift Gearbox Emergency release ............... 121
Distance .... .... .. .... .............. 22
Doors, power locks .... ... .. .. ........ 43
Driver information ................... 31
Driver Information System Menu display ............ ......... 22
Driver information system
Gearshift indicator ............. .. . 19
Menu button . ....... .... .. .. .. .. . 24
Open door or front lid wa rning .. .. .. . 18
Outside temperature display ........ 18
Red symbols ................... ... 30
Service interval display ............. 27
Setting . ................ .. .. .. ... 2s
Sound system display .. .. .......... 18 Trip computer
... ... ..... ... . ... .. 21
yellow symbols .. ................ . 30
Driver seat
See Seating position ...... ..... ... 126
Driving safely .. .. .. .. ............. . 124
Driving through water .... .... .. .. .. . 198
Duplicate key ...... . .. ............... 38
E
Efficiency program . ... .. .. ........... 25
Fuel economy messages ............ 26
Other equipment ... ............... 26
Elapsed time ... ...... ............. .. 21
Electrically heated front seats .. .... .. . 103
Electro-mechanical power assist ... 17, 193
Electronic differential lock (EDL) How the system works .. .... ...... 189
Warning/indicator lights ... .. ... ... 16
Electronic immobilizer . . . . . . . . . . . . 10, 40
Electronic power control
EPC warning/indicator light ......... 13
Electronic speed limiter ........ ...... . 20
Electronic Stability Program ... .... .. . 188
Electronic stabilization program (ESP)
Warning/indicator lights ..... .. .. .. 14
Emergency flasher Warning/indicator lights ... .. ... ... 14
Emergency flashers ... .. .. .... ....... 59
Emergency operation panoramic sliding sunroof ........ .. 53
Rear lid .......................... 46
Vehicle operation Vehicle care Do-it-yourself service Technical data