AUDI A5 2020 Owners Manual
Manufacturer: AUDI, Model Year: 2020, Model line: A5, Model: AUDI A5 2020Pages: 302, PDF Size: 81.67 MB
Page 221 of 302

8W7012721BA 
Checking and Filling 
  
> Turn the fuel cap clockwise until it clicks  into 
place. 
> Close the fuel filler door and then press on the 
left side until it latches. 
The correct fuel type for your vehicle can be 
found on a label located on the inside of the fuel 
filler door. For additional information on fuel, see 
=> page 217. 
For the tank capacity in your vehicle, refer to the 
Technical Data > page 284. 
To reduce the risk of fuel leaking out or vapors 
escaping, make sure that the fuel tank is closed 
correctly. Otherwise the ES indicator light will 
turn on. 
If the central  locking system malfunctions, there 
is  a fuel filler door emergency release 
=> page 220. 
  
  
Z\ WARNING 
Improper fueling procedures and improper 
handling of fuel can lead to explosions, fires, 
severe burns, and other injuries. 
— Do not smoke. Keep away from  open flames. 
— The ignition must be switched off when re- 
fueling. 
— Mobile devices, radio devices, and other ra- 
dio equipment should  always be switched 
off when refueling. Electromagnetic rays 
could cause sparks and start a fire. 
— If you do not insert the fuel pump nozzle all 
the way into the filler tube, then fuel can 
leak out. Spilled fuel can ignite and start a 
fire. 
— Never get into the vehicle when refueling. If 
there is an exceptional situation where you 
must enter the vehicle, close the door and 
touch a metal surface before touching the 
fuel pump nozzle again. This will reduce the 
risk  of electrostatic discharge that can cause 
flying sparks. Sparks can start a fire when 
refueling. 
  
  
ZA WARNING 
Transporting fuel containers inside the vehicle 
is not recommended. Fuel could leak out of 
the container and ignite, especially during an 
accident. This can cause explosions, fires, and 
injuries. 
— Ifyou must transport fuel in a fuel contain- 
er, note the following: 
— Always place the fuel container on the 
ground before filling. Never fill the fuel 
container with fuel while it is inside or on 
the vehicle. Electrostatic discharge can oc- 
cur while  refueling  and the fuel vapors 
could ignite. 
— When using fuel containers made of met- 
al, the fuel pump nozzle must always re- 
main in contact with the container to re- 
duce the risk  of static charge. 
— Insert the fuel pump nozzle as far as pos- 
sible into the filler opening while refuel- 
ing. 
— Follow the applicable legal regulations in 
the country where you are driving when 
using, storing and transporting fuel con- 
tainers. 
— Make sure that the fuel container meets 
the industry standards, for example ANSI 
or ASTM F852-86. 
    
    
  
) Depending on the engine and country 
() Note 
— Remove fuel that has overflowed onto any 
vehicle 
components immediately to reduce 
the risk  of damage to the vehicle. 
— Never drive until the fuel tank is completely 
empty. The irregular supply of fuel that re- 
sults from that can cause engine misfires. 
Uncombusted fuel may enter the exhaust 
system and increase the risk of damage to 
the catalytic converter. 
@) For the sake of the environment 
— Do not overfill the fuel tank, or fuel could 
leak out when the vehicle is warming up. 
— Fuel should never enter the sewer system or 
come into contact with the ground. 
219 
>  
Page 222 of 302

Checking and Filling 
  
@ Tips 
The fuel filler door on your vehicle does not 
lock if you lock the vehicle from the inside us- 
ing 
the central  locking switch. 
  
Fuel filler door emergency release 
If the central locking system malfunctions, the 
fuel filler door can be unlocked manually. 
    
Fig. 163 Right side trim panel in the luggage compart- 
ment: opening the trim panel 
  
  
Fig. 164 Luggage compartment: fuel filler door emergency 
release 
The emergency opening mechanism is located 
behind the  right side trim panel in the luggage 
compartment. 
> Open the cover in the side panel > fig. 163. 
> To unlock the fuel filler door, loosen the loop 
from the retainer and then pull on the loop 
carefully > fig. 164 >@. 
> Press on the left side of the fuel filler door to 
open it > page 218, fig. 161. 
@) Note 
Only pull  on the loop until you feel resistance. 
You will not hear it release. If you continue to 
220 
pull, you could damage the emergency re- 
lease mechanism. 
Emissions control 
system 
(ere elm lated) 
Z\ WARNING 
The temperature of the exhaust system is 
high, both when driving and after stopping 
the engine. 
— Never touch the exhaust tail pipes once they 
have 
become hot. This could result in burns. 
— Do not park your vehicle over flammable 
materials such as grass or leaves because 
the high temperature of the emissions sys- 
tem could start a fire. 
— Do not apply underbody protectant in the 
exhaust system area, because this increases 
the risk of fire. 
Catalytic converter 
Follow the safety precautions > page 220, Gener- 
al information. 
  
      
  
The vehicle may only be driven with unleaded 
gasoline, or the catalytic converter will be de- 
stroyed. 
Never drive until the tank is completely empty. 
The irregular supply of fuel that results from that 
can cause engine misfires. Uncombusted fuel 
could enter the exhaust system, which could 
cause overheating and damage to the catalytic 
converter. 
Malfunction Indicator Lamp (MIL) 
If the S indicator light blinks or turns on, there 
is a malfunction that is causing poor emissions 
quality and that could damage the catalytic con- 
verter. Drive slowly to an authorized Audi dealer 
or authorized Audi Service Facility to have the 
malfunction corrected.  
Page 223 of 302

8W7012721BA 
Checking and Filling 
  
The  indicator light can also turn on if the fuel fill- 
er cap is not closed correctly > page 218). 
Engine compartment 
General information 
Special care is required if you are working in the 
engine compartment 
For work in the engine compartment, such as 
checking and filling fluids, there is  a risk of in- 
jury, scalding,  accidents, and burns. For this 
reason, follow all the warnings and general 
safety precautions provided in the following in- 
formation. The engine compartment is  a dan- 
gerous area in the vehicle. > A. 
  
ZA WARNING 
— Turn the engine off. 
— Switch the ignition off. 
— Set the parking brake. 
— Select the “P” (Park) selector lever position. 
— Allow the engine to cool. 
— Keep children away from the engine com- 
partment. 
— Never spill fluids on a hot engine. These flu- 
ids (such as the freeze protection contained 
in the coolant) can catch fire. 
— Avoid short circuits in the electrical system. 
— Never reach into the radiator fan. The fan is 
temperature-controlled and can turn on 
suddenly, even when the ignition is switched 
off. 
— Never open the hood when there is steam or 
coolant escaping from the engine compart- 
ment, because there is a risk that  you could 
be burned. Wait until  no steam or coolant is 
escaping. 
— The cap on the coolant expansion tank must 
never be opened when the coolant is hot. 
The cooling system is under pressure. There 
is a risk of burns 
—To protect your face, hands, and arms from 
hot steam or coolant, cover the cap with a 
thick  cloth when opening. 
      
  
) Depending on the engine and country 
  
— Do not remove the engine cover under any 
circumstances. This increases the risk of 
burns. 
— Due to the risk  of electric shock, never touch 
the ignition cable or other components in 
the electronic high-voltage ignition system 
when the engine is running or is starting. 
— Ifa gear is engaged while the vehicle is sta- 
tionary and the engine is running, do not 
press the accelerator pedal inadvertently. 
Pressing the accelerator pedal will cause the 
vehicle to move, and this could result in an 
accident. 
— If inspections or repairs must be performed 
while the engine is running, moving compo- 
nents (such as the ribbed belt, generator, 
and radiator fan) pose an additional risk. 
— Set  the parking brake first and select the 
“P” (Park) selector lever position. 
— Always make sure that no parts of the 
body, jewelry, ties, loose clothing, and 
long hair can be caught in moving engine 
components. Before any work, always re- 
move any jewelry and/or ties, tie back long 
hair, and make sure all clothing fits close 
to the body to reduce the risk of anything 
becoming caught in engine components. 
— Pay attention to the following warnings list- 
ed when work on the fuel system or on the 
electrical equipment is required. 
— Do not smoke. 
— Never work near open flames. 
— Always have a working fire extinguisher 
nearby. 
— All work on the battery or electrical system 
in your vehicle can result in injuries, chemi- 
cal burns, accidents, or burns. Because of 
this, all work must be performed only by an 
authorized Audi dealer or authorized Audi 
Service Facility. 
— Limit your exposure to exhaust and chemi- 
cals to  as short a time as possible. 
     
  
Z\ WARNING 
California Proposition 65 Warning: 
    
221  
Page 224 of 302

Checking and Filling 
  
  
— Engine exhaust, some of its constituents, 
and certain vehicle components contain or 
emit chemicals known to the State of Cali- 
fornia to cause  cancer and birth defects and 
reproductive harm. In addition, certain flu- 
ids contained in vehicles and certain prod- 
ucts of component wear contain or emit 
chemicals known to the State of California 
to cause cancer and birth defects or other 
reproductive harm. 
— Battery posts, terminals and related acces- 
sories contain lead and lead compounds, 
chemicals known to the State of California 
to cause cancer and reproductive harms. 
Wash hands after handling. 
@® Note 
When filling fluids, be sure not to add any flu- 
ids  to the wrong reservoirs. Otherwise severe 
malfunctions and engine damage will occur. 
  
    
@ For the sake of the environment 
You should regularly check the ground under 
your vehicle in order to detect leaks quickly. If 
there are visible spots from oil or other fluids, 
bring your vehicle to an authorized Audi deal- 
er or authorized Audi Service Facility to be 
checked. 
Opening and closing the hood 
The hood is released from inside the vehicle. 
  
   
Fig. 165 Footwell: release lever 
222 
    
Fig. 166 Unlocked hood: lever 
Make sure the wiper arms are not raised up from 
the windshield. Otherwise the paint could be 
damaged. 
Opening the hood 
> With the door open, pull the  lever > below 
the instrument panel in the direction of the ar- 
row > fig. 165. 
> Raise the hood slightly > A\. 
> Press the lever > fig. 166 in the direction of the 
arrow. This releases the hooks. 
> Open the hood. 
Closing the hood 
> Push the hood down until you override the 
force of the struts. 
> Let the hood fall lightly into the latch. Do not 
press itin. > AX. 
Message 
8B Warning! Hood is not locked. Stop vehicle 
and check the lock 
The hood latch is not locked correctly. Stop im- 
mediately and close the hood. 
  
ZA\ WARNING 
— Never open the hood when there is steam or 
coolant escaping from the engine compart- 
ment, because there is a risk that you could 
be burned. Wait until  no steam or coolant is 
escaping. 
— For safety reasons, the hood must always be 
latched securely while driving. Because of 
this, always check the hood after closing it 
to make sure it is latched correctly. The hood 
is latched if the front corners cannot be lift- 
ed.  > 
       
Page 225 of 302
![AUDI A5 2020  Owners Manual 8W7012721BA 
Checking and Filling 
  
— If you notice that the hood is not latched 1] 
while you are driving, stop immediately and 
  
close it, because driving when the hood is 
not latched increas AUDI A5 2020  Owners Manual 8W7012721BA 
Checking and Filling 
  
— If you notice that the hood is not latched 1] 
while you are driving, stop immediately and 
  
close it, because driving when the hood is 
not latched increas](/img/6/57566/w960_57566-224.png)
8W7012721BA 
Checking and Filling 
  
— If you notice that the hood is not latched 1] 
while you are driving, stop immediately and 
  
close it, because driving when the hood is 
not latched increases the risk of an accident. 
  
  
Fig. 167 Typical location of the reservoir and the engine oil filler opening (example) 
Follow the safety precautions > page 221. 
@ Washer fluid reservoir (3) > page 232 
Jump start points: (+) under the cover 
=> page 232, Charging the battery 
= page 266, Preparation 
   
Engine oil filler opening (827) > page 224 
    
) Sticker* for engine oil specifications 
=> page 223 
Coolant expansion tank (£.) > page 228 
Brake fluid reservoir (CO) > page 229 
  
The coolant expansion tank and the engine oil 
filling opening may be located in different places 
within 
the engine compartment, depending on 
the engine version. 
Engine oil 
  
J INC) 
  
  
If you need to add engine oil, use an oil that is 
listed on the sticker. The sticker is located at the 
front of the engine compartment > page 223, 
fig. 167. 
If the recommended engine oil is not available, in 
an emergency you may add a maximum of 1 
quart (1 liter) of ACEA C3 or API  SN engine oil 
one time until the next oil change. 
For more information on the correct engine oil 
for your vehicle, contact an authorized Audi deal- 
er or authorized Audi Service Facility. Have the oil 
changed by an authorized Audi dealer or author- 
ized Service Facility. 
223 
>  
Page 226 of 302

Checking and Filling 
  
  
Audi recommends 
Sbastrol/ ZIDGE Prarzssional 
Audi recommends using the LongLife high-per- 
formance engine oil from Audi Genuine Parts. 
Messages 
Engine oil pressure 
  
      
i Turn off engine. Oil pressure too low 
Stop driving and switch the engine off. Check the 
engine oil level  > page 224. 
— If the engine oil level is too low, add engine oil 
=> page 225. Only continue driving once the in- 
dicator light turns off. 
— If the engine oil level is correct and the indica- 
tor light still turns on, turn the engine off and 
do not continue driving. See an authorized Audi 
dealer or authorized Audi Service Facility for as- 
sistance. 
Engine oil level 
Applies to: vehicles with oil level warning 
& Please  add oil immediately 
Stop driving and switch the engine off. Check the 
engine oil level > page 224 and add engine oil 
immediately > page 225. 
i Please  add max. x qt (x l) oil. You can con- 
tinue driving 
Add the amount of oil shown immediately 
=> page 225. 
Reducing the oil level 
= Please reduce oil level 
There is too much oil in the engine and there is a 
risk of damaging the catalytic converter or en- 
gine. Drive to an authorized Audi dealer or au- 
thorized Audi Service Facility immediately to have 
engine oil extracted if necessary. Avoid high en- 
gine speeds, full acceleration, and heavy engine 
loads. 
Engine oil sensor 
Bs Oil level sensor: oil change necessary. Please 
contact Service 
224 
Fuel has entered the engine oil. This will cause 
the engine oil level to rise slowly and the engine 
oil quality to decrease. Do not extract engine oil 
to reduce the level, because this will increase the 
risk  of engine damage. Drive to an authorized 
Audi dealer or authorized Audi Service Facility im- 
mediately to have engine oil extracted. 
& Oil level system: malfunction! Please con- 
tact Service 
The sensor that checks the engine oil level has 
malfunctioned. Drive immediately to an author- 
ized Audi dealer or authorized Audi Service Facili- 
ty to have the malfunction repaired. 
Bs Oil pressure sensor: malfunction! Please 
contact Service 
The sensor that checks the engine oil pressure 
has malfunctioned. Drive immediately to an au- 
thorized Audi dealer or authorized Audi Service 
Facility to have the malfunction repaired. 
Engine warm-up request 
i Please drive to warm up engine 
Fuel has entered the engine oil, either due to low 
outside temperatures or frequent short drives. 
Drive until the engine is warm so that the fuel in 
the engine oil will evaporate. Avoid high engine 
speeds, full accelerating, and heavy engine loads 
when doing this. 
@ Tips 
The oil pressure warning BB is not an oil level 
indicator. Always check the oil level regularly. 
Checking the engine oil level 
The engine oil level can be checked in the MMI. 
Observe the safety precautions > A\ in General 
information on page 221. 
> Park the vehicle on a level surface. 
> Shut the engine off when it is warm. 
> Switch only the ignition back on. 
> Wait approximately two minutes. 
> Applies to: MMI: Select on the home screen: 
VEHICLE > Settings & Service > Oil level. >  
Page 227 of 302

8W7012721BA 
Checking and Filling 
  
> Read the oil level in the display. Add engine oil — If you  believe that your engine has in- 
if the  bar in the oil level indicator is just below creased its oil consumption, contact an au- 
“min” > page 225. thorized Audi dealer or authorized Audi 
Service Facility to determine the cause. 
@) Note Please note that an exact oil consumption 
measurement must be done with the neces- 
sary  care and accuracy and may take time. 
An authorized Audi dealer or authorized 
@ Tips Audi Service Facility is trained in accurately 
measuring the oil consumption. 
— You can find information on engine oil and 
engine oil capacities for the USA at www. 
audiusa.com/help/maintenance, or for Can- 
ada at www.audi.ca/ca/web/en/ 
customer-area/care-and-maintenance/ 
audi-service-schedules.html, or call 
. 800-822-2834. 
@) Tips 
lira ced ai 0.5 quart/600 miles (0.5 liter/1,000 km), de- Eeue 
If the engine oil level is too low or too high, 
there is a risk of engine damage. 
The oil level indicator in the display is only an 
informational display. If the oil level is too 
low, a minimum oil warning appears in the in- 
strument cluster. Add oil and close the hood. 
The  current oil level will be displayed on the 
MMI the next time the ignition is switched on. 
  
  
    
  
  
pending on driving style and operating condi- S 
tions. Consumption may be higher during the 5 
first 3,000 miles (5,000 km). The engine oil a 
level must be checked regularly. It is best to 
check each time you refuel your vehicle and 
before long drives. 
— Because of the lubrication and cooling of 
the engine, combustion engines consume 
oil. The oil consumption varies depending 
on the engine and may change during the Fig. 168 Engine compartment: engine oil filler opening 
service life of the engine. Engines generally cover 
consume more oil at the beginning during 
the break-in period. Then oil consumption Observe the safety precautions > A\ in General 
stabilizes after  the break-in period. information on page 221. 
— Under normal conditions, oil consumption > Turn the engine off. 
depends on the quality  and viscosity of the > Open the hood > page 222. 
oil, the engine RPM, the climate conditions, > Unscrew the cap %z for the engine oil filler 
and the road conditions. The dilution of oil opening © fig. 168. 
from condensation or fuel residue as well as > Carefully  add 0.5 quart (0.5 liter)  of the correct 
the age of the oil also play a role. Because oil > page 223. 
engine wear increases with mileage, oil con- > Close the engine oil filler opening cap. 
sumption will increase again over time until > Close the hood © page 222. 
it may be necessary to replace worn compo- > Restart the ignition after two minutes and read 
nents. the current oil level in the MMI > page 224, 
— Because all these variables play a role, it is Checking the engine oil level. 
not possible to define an oil consumption > Add more oil if necessary. > 
standard. Therefore, the oil level must be 
checked regularly. 
225  
Page 228 of 302

Checking and Filling 
  
  
ZA WARNING 
— When adding oil, do not let oil drip onto hot 
engine components. This increases the risk 
of a fire. 
— You must seal the cap on the oil filler open- 
ing correctly so that oil does not leak out on- 
to the hot engine and exhaust system when 
the engine is running, because this is a fire 
hazard. 
— Always clean skin thoroughly if it comes into 
contact with engine oil. 
— 
Engine oil is poisonous and must be kept out 
of reach of children. 
— Store the engine oil securely in the original 
container. 
@) Note 
— The New Vehicle Limited Warranty does not 
cover damage or malfunctions if the recom- 
mended intended use of the vehicle  and 
maintenance measures listed in the Audi 
Owner's Manual and the Warranty & Main- 
tenance Booklet were not followed. 
  
    
— Only use high-grade engine oil that explicit- 
ly meets the Audi oil quality standard for 
your vehicle. Using another oil may cause 
severe vehicle damage. 
— Do not mix any additives with the engine oil. 
Additives may cause engine damage that is 
not covered by your New Vehicle Limited 
Warranty. 
@ For the sake of the environment 
— Oil should never enter the sewer system or 
come into contact with the ground. 
— Follow the legal regulations in the country 
where you are located when disposing of 
empty oil containers. 
Changing engine oil 
We recommend having the oil changed at an au- 
thorized Audi  dealer or authorized Audi Service 
Facility. 
Follow the safety precautions > page 221, Gener- 
al information. 
226 
The engine oil must be changed at the intervals 
specified in the Warranty & Maintenance Book- 
let. This is very important because the lubrication 
function of the oil gradually declines during regu- 
lar vehicle operation. 
The engine oil should be changed more frequent- 
ly under certain circumstances. Have the oil 
changed more frequently if you often drive short 
distances, your vehicle is predominantly in stop- 
and-go traffic situations, is in very dusty environ- 
ments, or is operated for long periods of time in 
temperatures below zero. 
Cleansing additives in the oil make fresh oil ap- 
pear darker after the engine has run briefly. This 
is normal and no reason to change the engine oil 
more frequently than recommended. 
Because correctly disposing of engine oil is diffi- 
cult and special tools and technical knowledge 
are needed for an oil change, having your engine 
oil changed by  an authorized Audi dealer or au- 
thorized Audi Service Facility is recommended. 
If you change the engine oil yourself, please note 
the following important information: 
  
ZA\ WARNING 
If you change the engine oil on the vehicle 
yourself, the following precautions must be 
followed: 
— Wear protective eyewear. 
— Due to the risk  of scalding, allow the engine 
to cool down sufficiently. 
— 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. 
        
Page 229 of 302

8W7012721BA 
Checking and Filling 
  
@) 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 B indi- 
cator light. However, occasionally checking the 
coolant level manually is recommended. 
Messages 
BAturn off engine and check coolant level. See 
owner's manual 
The coolant level is too low. 
Stop driving and switch the engine off. Check the 
coolant level  > page 228. 
— If the coolant level is too low, add coolant 
=> page 228. 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. 
|E} 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 use  the follow- 
ing coolant additives. These additives may be 
mixed with each other. 
  
     
  
  
Coolant additive Specification 
Gl12evo TL774L 
G12++ TL774G 
G13 TL774) 
      
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 °C) 
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 
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 appropriate coolant additive is not 
available in an emergency, do not add  any 
other additive. You could damage the en- 
gine. If this happens, only use water and re- 
store the correct mixture ratio with the 
specified coolant additive as soon as possi- 
ble. 
227  
Page 230 of 302

Checking and Filling 
  
— Only refill with new coolant. 
— Radiator sealant must not be mixed with 
the coolant. 
— 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. 
(@itsta diate maetel c-) 
  
RAZ-0540| 
  
  
MIN 
      
Fig. 169 Engine compartment - coolant expansion tank: @) 
cover; @) markings 
Follow the safety precautions > page 221, Gener- 
al information. 
Checking the coolant level 
> Park the vehicle on a  level surface. 
> Switch the ignition off. 
> Open the hood > page 222. 
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 223, 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 
228 
the edge of the filler opening on the coolant ex- 
pansion tank. 
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. Mixing the coolant additive 
with distilled water is recommended. 
> 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 227 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. 
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 can 
be a dangerous area. Stop the engine and al- 
low it to cool before working in the engine 
compartment. Always follow the informa- 
tion found in > page 221, General informa- 
tion. 
— Never open the hood if you can  see or hear 
steam or coolant escaping from the engine >