2021 AUDI A5 engine coolant

Checking and Filling


— Maintain enough distance when you are re-
moving the oil drain plug. While doing this,
keep your forearm parallel to the ground to
reduce the risk of hot oil dripping down your
arm.
— Drain the oil into a container designed for
this purpose that is large enough to hold the
full amount of oil in your engine.
— Engine oil is poisonous. Always store out of
reach of children.
— Prolonged contact of used engine oil with
the skin may cause skin damage. Always
wash oil off immediately with soap and wa-
ter to protect your skin.
@) Note
Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited War-
ranty.

@ For the sake of the environment
— Before changing the engine oil, make sure
you can dispose of the used engine oil cor-
rectly.
— Engine oil must always be disposed of cor-
rectly. Do not dump it in the yard, in the for-
est, or in open water, river channels, or sew-
ers.
— Have your used engine oil recycled by bring-
ing it to a used oil collection site or contact
a gas station.
Cooling system
The engine cooling system is filled with a mixture
of purified water and coolant additive at the fac-
tory. This coolant must not be not changed.
The coolant level is monitored using the g indi-
cator light. However, occasionally checking the
coolant level is recommended.
Messages
& Turn off engine and check coolant level. See
owner's manual
236
The coolant level is too low.
Stop driving and switch the engine off. Check the
coolant level > page 237.
— If the coolant level is too low, add coolant
=> page 237. Only continue driving once the in-
dicator light turns off.
|_| Coolant temperature: too high. Please let
engine run while vehicle is stationary
Let the engine run at idle for a few minutes to
cool off, until the indicator light turns off.
— If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
|| Coolant system: malfunction! Please turn
off engine
Do not continue driving, shut the engine off, and
switch the ignition off.
— See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents. Only add the follow-
ing coolant additives mixed with distilled water.

Coolant additive Specification


Gl12evo TL774L

The amount of coolant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant addi-
tive percentage is too low, the coolant can freeze
and damage the engine.


Coolant Freeze protec-
additive tion
Warm min. 40% min. -13 °F
regions max. 45% (25°)
Cold min. 50% max. -40 °F
regions max. 55% (-40 °C)

@) Note
— Before the start of winter, have an author-
ized Audi dealer or authorized Audi Service

8W7012721BB
Checking and Filling

Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
— If the G12evo coolant additive is not availa-
ble in an emergency, do not add any other
additive. You could damage the engine. If
this happens, only use distilled water and
restore the correct mixture ratio with the
specified coolant additive as soon as possi-
ble.
— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide you with important information about
the recommended coolant additive.
Checking coolant

RAZ-0540,

MIN


Fig. 169 Engine compartment - Coolant expansion tank:
@ cover with release button; @) markings
Observe the safety precautions > page 230, Gen-
eral information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 231.
The coolant expansion tank for some engines is
located in the water drip tray under a cover. If
necessary, remove the cover that is located under
the windshield wiper on the front passenger's
side.
> Check the coolant level in the coolant expan-
sion tank > page 232, fig. 167 using the outer
markings (2) > fig. 169. The coolant level must
be between the markings (2) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
> Applies to: vehicles with 6-cylinder engine:
There is a float located in the coolant expansion
tank. Read the coolant level using the coolant
level float. When the engine is cold, the float
must be located between the MIN marking and
the edge of the filler opening on the coolant ex-
pansion tank.
> When you add coolant to the expansion tank,
please refer to > page 236, Cooling system.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
If you must add coolant, use a mixture of water
and coolant additive. Audi recommends mixing
the coolant additive with distilled water.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Push the release button @) > fig. 169 on the
cap and carefully turn it to the left until you
feel resistance > /\.
> Push the release button again and remove the
cap completely.
» Add coolant in the correct mixture ratio
=> page 236 up to the MAX marking. Or, in
vehicles with a 6-cylinder gasoline engine, the
float must be located between the MIN mark-
ing and the edge of the filler opening on the
coolant expansion tank.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Vehicles with 6-cylinder engine: if necessary,
press the float into the coolant expansion tank
using the cover.
> Turn the cap to the right to tighten it until you
feel resistance a second time.
237

Checking and Filling

Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

ZA WARNING
— The engine compartment in any vehicle is a
potentially dangerous area. Stop the engine,
switch the ignition off, and allow the engine
to cool before working in the engine com-
partment. Always follow the information
found in > page 230, General information.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.

@) Note
Do not continue driving if the coolant expan-
sion tank is empty. Do not add any coolant,
because air could enter the cooling system
and damage the engine. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
238
Brake fluid

BFV-0229]


Fig. 170 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 230, Gen-
eral information.
Checking the brake fluid level
The brake fluid reservoir is located under a cover
on the driver’s side.
> Lift the cover > page 232, fig. 167 at both
openings and remove it.
>» Read the brake fluid level on the brake fluid res-
ervoir > page 232, fig. 167. The brake fluid lev-
el must be between the MIN and MAX markings
oA.
The brake fluid level is monitored automatically.
Messages
EG i @ Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Changing the brake fluid
Brake fluid should be changed at regular inter-
vals. Have the brake fluid changed by an author-
ized Audi dealer or authorized Audi Service Facili-
ty. The authorized Audi dealer or authorized Audi
Service Facility will inform you of the replace-
ment intervals.

ZA WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an

8W7012721BB
Index

Exterior MinrorSeecs «= cess oe cure +o coarene © o ove 63
Folding settings........... 0. cece eee ee 35
External voice operation................. 28
F
Factory default settings
Multi Media Interface...............4. 222
Fast route............ 0.00.00. . 0022 191
Favorites... 0... 0... eee eee eee ee 22
BIWetOOth ¢ « sses so eees co eG Hee ee Be 224
Navigation’s. © « cscs. 6 2 sma o 0 omens o 0 woman 192
Telephone ........... 0. e eee eee eee 176
Federal Communications Commission (FCC) . 297
File formats (media drives) .............. 216
Filling
Tank capacities... 0.2.0... eee eee eee 300
For the sake of the environment
Disposing of engine oil................ 235
FUGLING(s = aes s « seme & ¢ seus = 7 ERS & oe 227
LO AKS base ox estzane ew esecire o somneun ss & wrenene we ¥ rane 231
Forward gear
refer to Gears... ... eee eee eee 105
Free text search
Media... ..... 0. eee eee eee 215
RadiO:ss ss ssc « = nes 5 2 ceree Sees ee 204
also refer to Intelligent search.......... 191,
Freeze protection
Coolant... ...... cee eee eee eee 236
Windshield washer system............. 242
Frequency band...............--0000-- 202
also refer to Frequency band........... 202
Fronit‘centerarmrest © esis s caes ae eee sve 72
Front passenger’s seat adjustment
ROAM cesses 6 & sonra 5 & anion & & seRON ow SMO we Be 71
Front wiper blades
Changing............. see eee eee eee 66
Cleaning... .. cece eects 66
Fuel... cece eee eee 226
AddItIVGS « ces z = seus ¢ s een 2 eee se os 227
CUPFENt: CONSUMPTION « esses 6 cee we eee oe 17
Fueldisplay....... 0.0... cece eee eee ee 12
Gasoline : wess + y ees ss ca6s to ews Fe ees 226
Reducing fuel consumption............ 110
Tank
capacity. ........... 0. cee eee eee 300
Fueling
Fuel filler door..... 0.0... cece eee eee ee 227
Fuel filler door emergency release....... 229
Functions on demand.................. 184
Functions that require a license.......... 184
also refer to Functions on demand....... 184
Fuses
ASSIQMIMIOM GE & asvies & weenie © ¥ sursers WF senses v 286
Replacing......... 0c cece cece eee 285
G
Garage door opener............-.000 eee 48
Garment hooks ...... 2... 0c eee eee 92
GasOlime visio: x ceawnwe vo ancane ow ceewe mw aw Oo 226
Additives... 0.0.0... cece cece 227
GaSOline MIXING veux ss meme 2» see so ee 226
GAWR
refer to Gross Axle Weight Rating (GAWR) . 300
GOATS: x = ues © gate « ¢ aes « Rates F RaNEE & 105
Glossary of tire and loading terminology... 247
Glove compartment.............-.000005 92
Valet parking’: s ¢ aes + eons ss wows es eeu 47
G meter
refer to Sport displays.................. 16
Gross Axle Weight Rating (GAWR)........ 300
Gross Vehicle Weight Rating (GVWR)...... 300
GVWR
refer to Gross Vehicle Weight
Rating (GVWR)... 1... . cee eee eee ee 300
H
Handsfree..................000000 00 172
HamdsiPree:Profiles. so sacs + 0 weowee 0 0 ctunene «2 172
Head-up display
Adjusting ..... 6.6.06. eee ee 26
Adjusting the brightness................ 63
Operating’: « s ses « sews + cine oo corer o ¥ ave 26
Headlight range control.................. 58
Headlights’, » segs x + sees se pees se ees ee 58
Cleanings « x visas x 6 aomene eo aevuee wo anarene w oe 268
Headlight range control................ 58
Washersystem:: « « gems « x nama x paemes 2 per 65
Washer system (filling washer fluid) ..... 242
Head restraints « icin s cian s wae a 2 cexsen wv 74
Heated rear Window ¢ sacs iw a eames eee 101
305