radiator AUDI A5 COUPE 2010 User Guide

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0 Not e
• Coolant pollutes the environment and cou ld cause an engine
fire. Excess coolant will be forced out through the pressure relief
valve in the cap when the engine becomes hot.
• If, in an emergency, only water can be added, the correct ratio
between water and antifreeze ~
page 277 must be restored as soon
as possible .
ci> For the sake of the environment
Dra ined coolant should not be reused . Always dispose of used
coolant whi le observing all environmental regulations. •
Radiator fan
The radiator fan switches on automatically by itself.
The rad iator fan is driven by the eng ine v ia the V-be lt . The v iscous
clutch regulates the speed of the fan according to the tempera ture
of the coo lant .
An auxiliary electric radiator fan * swi tches on and off depending on
coo lant temperature and other vehicle operating conditions.
After you switch the engine off, the auxiliary fan can continue running for up to 10 minut es -even with th e igni tion o ff. It can even
switch o n again later by itself~ & , if
• the temperature of the engine coo lant rises due to the heat
bui ld -up from the engine in the engine compartment, o r
• the engine compartment heats up because the vehic le is parked
in intense sun light.
& WARNING
• To reduce the ri sk of per sonal injury never tou ch the radiator
f a n.
& W AR N ING (continu ed )
• The auxiliary e le ctri c fan i s temperature controlled and can
s w itch on suddenly even when the engine is not running .
• The auxiliary radiator fan swit ches on automatically when the
engine coolant reache s a ce rtain temperature and will con tinue to
run until the coolant t emperatur e drop s. •
Brake fluid
Checking brake fluid level
Th e brake fluid level c an be checked with a quick glance.
Fig . 22 6 En gin e
co mp art m ent : B ra ke
fl uid re servoir
Befo re yo u c heck anything in th e en gin e compar tme nt,
always read and heed all WARNINGS~ & in "Working in
the eng ine compartment" on
page 271 .
Read the brake fl uid level from the bra ke fluid reservoir
~ fig . 226. T he b rake fluid leve l must be betwee n the
" M IN " and "MAX" markings.
The brake fluid reservoir is located at the rear partition of the engine
compartment on the left side~
page 272 . .,_

ffl Alphabetical index ----=------...:..:...::... ___________________________ _
Electronic immobilizer .... ...... ... 11, 41
Electronic power contro l
(EPC) warning/indicator light .. .... .. 13
Electronic stabilization program (ESP) How the system works . . . . . . . . . . . . 234
Warni ng/indicator lights ........... 13
Emergency braking .... ..... .. ...... 114
Emergency flasher . . . . . . . . . . . . . . . . . . . 57
Warning/indicator lights ........... 14
Emergency key . . . . . . . . . . . . . . . . . . . . . . 38
Starting engine .... ....... ........ 41
Emergency locking of the doors ........ 47
Emergency release Selector lever . . . . . . . . . . . . . . . . . . . . 154
E . mergency starting . . . . . . . . . . . . . . . . . 326
Emergency towing .................. 329
Emergency un locking
Ignition key ...... .... .... .... .... 40
Energy management ...... ... ... .... 241
Battery power . . . . . . . . . . . . . . . . . . . 242
Driver notification . . . . . . . . . . . . . . . . 242
Engine Compartmen t ........ ...... . .. .. 272
Coolant .. .... ..... ... ... .... .... 277
Hood ...... ........... ....... ... 270
Starting .................. ...... 108
Starting with jumper cables ....... 326
Stopping ....................... 109
Engine compartment Safety instructions . . . . . . . . . . . . . . . 271
Working the engine compartment .. 271
E . I ngme coo ant system .... ... ... .. ... 277
Adding coolant ... .... ...... ..... 279
Checking coo lant level .. .... .... .. 278
Check ing the engine coolant level .. 278
Malfunction ......... .... ......... 30
Radiator fan ...... .... .... .... ... 280
Engine coolant temper.ature
Temperature gauge ...... .... ..... . 8
Engine data .. ................ ...... 337
Engine hood Closing .. .... .... ... .. .... ...... 271
How to release the hood . . . . . . . . . . 270
Engine oil .......................... 273
Adding ......................... 275
Additives .. ....... .... ...... .... 275
Changing . .... .... .... .... .... .. 276
Check oil level ............. ...... 275
Consumption ... .. ............ ... 275
Oil consumption ................. 274
Oil grades ... .. ...... .... ... .. ... 273
Specification and viscosity ...... .. 273
Engine oil level ...................... 36
Engine oil pressure Malfunction .. .... ....... ......... 31
Engine oil sensor defective ............ 36
Engine speed limitation ............... 36
Environment Break -in period .... ........ ...... 243
Catalytic converter ........ ....... 244
Disposing of your vehicle battery ... 285
Driving at high speeds .... ... .. ... 246
Driving to minimize pollution and noise 245 Fuel ..
...... ... .. . ... .... .... ... 267
Fuel economy ... ....... .... ...... 245
Leaks under your vehicle ....... ... 271
Letting the vehicle stand and warm up ..
246
Proper disposal of drained brake fluid
281
Proper disposal of drained engine coolant ... .. ...... ... .. ... .... . 279
Proper disposal of drained engine oil ....
275 ,276
Recycling used engine oi l ...... ... 275
Unleaded fuel ........ .... .... ... 265
What should I do with an old battery?
285
Environmental note Rear window defogger .. ....... 95, 102
Roof rack ... ... .. .. .. .... .... .... 85
EPC See Electronic power control .... .... 13
ESP See Electronic stabi lization program
(ES P) ... ......... ... ............ 13
Event Data Recorder (EDR) ............ 234
Expansion tank ..................... 278
Eyeglasses compartment .............. 89
F
Fan
Deluxe automatic c limate control .... 93
Deluxe automatic climate control plus ...
100
Radiator ........ ... .. .... .... ... 280