2011 AUDI A5 COUPE coolant reservoir

Checking and filling Ill
-------------~--
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage=:> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area=>& .
& WARNING
To help avoid injury, before you check anything under the hood:
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
Safety first
& WARNING (continued)
• Move selector lever of automatic transmission to "P" (Park);
put manual transmission in Neutral.
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine is
running or being started, never touch:
-Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running: ..,
Vehicle care Technical data

•--=C:.:.h.:.. e=. c=.:..:: k .:.:in ..:. g ~ a::..:..: n~d .:...:.. f:....:il ..:.li :.:.n.;.: g~ ------------------------------------------
0 Note
• Coolant pollutes the environment and could 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 a nd antifreeze ::::>
page 281 must be restored as soon
as possible.
ci> For the sake of the environment
Drained coolant should not be reused. Always dispose of used coolant
wh ile observ ing all environmental regulations.•
Radiator fan
The radiator fan switches on automatically by itself.
The radiator fan is driven by the engine v ia the V-belt. The viscous
clutch regulates the speed of the fan according to the temperature of
t he coo lant.
An auxiliary electr ic radiator fan* sw itches on and off depending on
coolant temperature and other vehicle operating conditions.
After you switch the engine off, the auxiliary fan can cont inue running
for up to 10 minutes- even with the ignition off. It can even switch on
again later by itse lf::::>
/1 , if
• the temperature of the engine coolant rises due to the heat build­
up from the engine in the engine compartment, or
• the engine compartment heats up because the veh icle is parked in
intense sunlight.
& WARNING
• To reduce the risk of personal injury never touch the radiator
fan.
/1 WARNING (continued)
• The auxiliary electric fan is temperature controlled and can
switch on suddenly even when the engine is not running.
• The auxiliary radiator fan switches on automatically when the
engine coolant reaches a certain temperature and will continue to
run until the coolant temperature drops .•
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick glance.
Fig . 209 Engine
co mpartm ent : Brake
fluid reservoir
Before you check anything in the engine compartment,
always read and heed all WARNINGS=> & in "Working in
the engine compartment" on
page 275.
-Read the brake fluid level from the brake fluid reservoir
=> fig. 209. The brake fluid level must be between the
"MIN" and "MAX" markings.
The brake fluid reservoir is located at the rear partition of the engine
compartment on the left side=>
page 276. .,

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
Windshield/headlight* washer
container
Fig. 211 E ngine
compartment: Wind­
shie ld and headlight*
washer fluid container
The washer fluid container is mark ed with the symbol¢ on
its cap.
- Before you check anything in the engine compartment,
always read and heed all WARNINGS => & in "Working
in the engine compartment" on
page 275.
- Lift the filler cap tongue to add washer fluid. You can fill
the container to the top.
- Press the cap back onto the filler neck after filling the
container .
You can find the reservoir capacity in the table in:::::::, page 339.
Clean water should be used when filling up. If possible, use soft water
to prevent scaling on the washer jets. Always add a glass cleaner solu­ tion (with frost protection in the winter) .
0 Note
Do not mix engine coolant antifreeze or any other additives to fill up
the windsh ield washer reservoir .•

___ A_ l_. p_ h _ a_b_ e_ t_ic _a_ l_ in_ d_e _ x ____________________________________________ _
What should I do after changing a wheel? ...
298
What should I do after replacing wheels? 298
Wheel bolts Torque ............. .... .. .... .. 308
Wheels ........................... 291
Cast alloy .. ... ........... ..... .. 261
Checking tire pressure ............ 297
Cold tire inflation pressure ......... 295
General notes ................... 291
Glossary of tire and loading terminology . 292
New tires and wheels .. ..... ..... . 303
T ires and vehicle load limits ........ 299
When must a safety belt be replaced? . . 184
When must the a irbag system be inspected? .
201
When shou ld I adjust the tire pressures? 298
When should I check the tire pressures? 298
Where can I find the tire pressures for my car?
297
Why safety belts? ........... .... 181, 182
Window regulators Malfunct ions . ............. .... .. . 54
Power locks .. ................. .. . 54
Windows Clean ing . ...... ...... .... ..... .. 260
Windshield defogging/defrosting .. 100, 106
Windshield washer fluid Low level .. .. .. .. .... .. ... ....... 39 Windshield wipers
.. .......... ... .. .. 65
Faulty ...... .................. ... 41
Replacing w indshield wiper blades ... 67
Service position . . . . . . . . . . . . . . . . . . . 66
Was her reservoir ................. 290
Winter operation Battery .... .. .. .. .. .... ......... 285
Coolant system ... .. .. .. .. .. .. .. . 281
Defrosting windows .......... . 99, 106
Front seat heating ...... ......... 109
Tir es ......... ............. .... . 242
Windows ............ .. .. .. .... . 260
Winter tires ....................... 307
All-wheel drive .................. 307
Wiper blades Replacing windshield wiper blades ... 67
See also Windshield wipers ... .. .... 67
X
Xenon headlights ............ .. .. 61,327
y
Yellow symbols . .. .. ............... .. 36