2015 AUDI A5 service

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A WARNING ,~
Improperly worn safety belts increase the risk
of serious personal injury and death whenever
a vehicle is being used.
- Always make sure that all vehicle occupants
are correctly restrained and stay in a correct
seating pos ition whenever the vehicle is be­
ing used.
- Always read and heed all WARNINGS and
other important information
r:=;,page 123.
Belt tensioners
How safety belt pretensioners work
In front, side and rear-end collisions above a
particular severity, safety belts are tensioned au­
tomatically.
The safety belts are equipped with safety belt
pretensioners. The system is activated by sensors
in front, side and rear-end collisions of great se ­
verity. This tightens the belt and takes up belt
slack
r::;, .&. in Service and disposal of safety belt
pretensioneron page
127. Taking up the slack
helps to reduce forward occupant movement dur­
ing a collision .
(JJ Note
Never let the belt remain over a rear seatback
that has been folded forward.
(D Tips
The safety belt pretensioner can only be acti­
vated once.
- In minor frontal and side collisions, in rear­
end collisions, in a rollover and in accidents
involving very little impact force, the safety
belt pretensioner are not activated.
- In the case of a side crash, the safety belt
pretensioners will activate on the driver's or
front passenger's sides only, depending on
which side of the vehicle the crash occurs.
- When the safety belt pretensioners are acti­
vated, a fine dust is released. This is normal
and is not caused by a fire in the vehicle.
- The relevant safety requirements must be
observed when the vehicle or components
Safety belts
of the system are scrapped . An authorized
Audi dealer or qualified workshop is familiar
with these regulations and will be pleased
to pass on the information to you.
- Be sure to observe all safety, environmental
and other regulations if the vehicle or indi­
vidual parts of the system, particularly the safety belt or airbag, are to be disposed. We
recommend you have your authorized Audi
dealer perform this service for you.
Service and disposal of safety belt preten­
sioner
The safety belt pretensioners are parts of the
safety belts on your Audi . Installing, removing,
servicing or repairing of belt pretensioners can
damage the safety belt system and prevent it
from working correctly in a collision.
There are some important things you have to
know to make sure that the effectiveness of the
system will not be impaired and that discarded
components do not cause injury or pollute the
environment.
A WARNING
--
Improper care, servicing and repair proce-
dures can increase the risk of personal injury
and death by preventing a safety belt preten­
sioner from activating when needed or acti­
vating it unexpectedly:
- The belt pretensioner system can be activat­
ed only once.
If belt pretensioners have
been activated, the system must be re ­
placed.
- Never repair, adjust, or change any parts of
the safety belt system.
- Safety belt systems including safety belt
pretensioners cannot be repaired. Special
procedures are required for removal, instal­
lation and disposal of this system.
- For any work on the safety belt system, we
strongly recommend that you see your au­
thorized Audi dealer or qualified technician
who has an Audi approved repair manual,
train ing and special equipment necessary.
127

Safety belt s
@ For the sake of the environment
Undep loyed airbag modules and pretension­
ers m ight be classified as Perchlorate Mater ia l
- spec ia l handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­ rate. When the veh icle or parts of the re­
straint system including a irbag mod ules safe­
ty belts with pretensioners are scrapped, all
app licab le laws and regu lations mus t be ob­
served. Your authori zed A udi dealer is fami lia r
w ith these requirements and we recommend
tha t you have yo ur dealer pe rform th is service
for you.
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@ For the sake of the environment
Undep loyed airbag modu les and pretension­
ers might be classified as Perchlorate Mater ial
-special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­ rate. When the vehicle or parts of the re­
straint system includ ing a irbag modules safe­
ty belts with pretensioners are scrapped, a ll
app licable laws and regu lations must be ob­
served. Your author ized Audi dealer is fam iliar
w ith these requirements and we recommend
that you have your dealer perform this service
for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced A irbag System
performs in a crash. For example, using t ire-rim
comb inat ions not approved by Audi, lowering the
vehicle, chang ing the stiffness of the s uspension,
including the springs, suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
e lectronic control un it. Some suspension changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in which it wou ld not deploy if
the changes had not been made . Other kinds of
changes may reduce the force levels measured by
the sensors and prevent the airbag from deploy­ ing when it should.
A WARNING
Changing the vehicle 's s uspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in ­
crease the risk of ser ious personal injury in a
crash.
- Never install suspens ion components that
do not have the same performance charac­
teristics as the components or iginally instal­
led on your veh icle.
- Never use tire-rim combinations that have
not been approved by Audi.
Ai rb ag system
A WARNING
-Items stored between the safety be lt buckle
and the center console can cause the sensors i n the buckle to send the w rong informat ion
to the electronic control module and prevent
the Advanced A irbag System from wor king
properly.
- Always ma ke sure that nothing can interfere
wit h the safety belt buckles a nd that they
are not obstr ucted.
Knee airbags
Description of knee airbags
Appl ies to vehicles: wit h knee airbags
The knee airbag system can provide supplemen­
tal protection to properly restrained front seat
occupants.
Fig. 136 Dr iver 's knee ai rbag
T he driver knee airbag is in the instrument panel
u nderneath the steer ing whee l~
fig. 136, the
knee airbag for the passenger is at abou t the
same height in the instrument pane l underneath
the g love compartment.
T he knee airbag offe rs additional p rotection to
the driver's and passenge r's knees and uppe r and
lower thigh areas and supp lements the protec­
tion provided by the safety belts.
If the front a irbags dep loy, the knee a irbags also
deploy in fronta l co llisions when the dep loyment
th resho ld stored in the control unit is met
~ page 13 7, More important things to know
about front airbags.
In add ition to their normal sa fety f unct ion, safe-
ty be lts he lp keep the driver or fro nt passenger in .,.
143

Driving and th e environment
Regular maintenance
A badly tuned engine unnecessarily wastes a lot
of fuel .
.,. Have your vehicle serviced at regula r intervals.
By having your vehicle regularly serviced by an
authorized Audi dealer he lps to ensure that it
runs properly and economically. The condition of
your vehicle not only affects its safety and ability to hold its value, it also affects
f uel c onsump­
tion .
C he ck you r oil e ach t ime you fill you r ta nk .
The amount of oil used is related to engine load
and speed.
It is normal for the oil consumption of a new en­
g ine to reach its lowes t va lue after a cer tain mile ­
age has been d riven .
You must d rive you r vehicle about 3,000 miles
(5 ,000 k ilometers) before you can properly as­
sess o il cons umption .
This a lso applies to fuel consumption and engine
output.
(D Note
- Have your vehicle maintained properly and
in accordance w ith the service recommenda­
tions in you r Warra nty
& M aintenance book­
l et . Lack of p roper m aintenance as well as
i mprope r use of the vehicle will impair the
funct ion of the emission control system and
could lead to damage.
- Do not a lter or remove any component of
the Emission Cont ro l System unless ap­
proved by the manufacturer.
- Do not a lter o r remove any dev ice, such as
heat shie lds, switches, ignition wires,
va lves, which are designed to protect your
vehicle's Emiss ion Control System and other
i mportant veh icle components.
180
· Fewer short trips
Fuel consumption will always be relatively high
on short trips .
.,. Try to avoid dr iv ing short distances with a cold
eng ine .
The eng ine and catalytic converter have to reach
their opt imal
oper atin g temperature to reduce
fuel consumpt ion and noxious emissions effec­
tively .
Just after starting, a co ld engine in a mid-s ize car
on ly achieves a fuel economy of 6-8 mi les per
gallon (30-40 l/100 km). After about a half a
mile, fuel economy climbs to 12 mpg (20 l/100
km) . After about
2.5 miles (4 km), the eng ine is
at its proper operating temperature and fuel
economy has reached a norma l level. So you can
see that you should avo id short trips whenever
poss ible .
The
out side t emp eratur e is also cr itical in th is re­
gard. Your car consumes more fuel in the winter
than in the summer.

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-To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings.
- After washing the vehicle, the braking effect
may be delayed due to moisture on the
brake rotors or ice in the w inter . The brakes
must be dried first w ith a few careful brake
applications.
(I) Note
- If you wash the vehicle in an automatic car
wash, you must fold the exterior m irrors in
to reduce the risk of damage to the mirrors. Power folding exterior mirrors* must only
be fo lded in and out us ing the power folding
f u nct ion.
- To prevent pa int damage, do not wash the
vehicle i n direct sunlight .
- To reduce the risk of damage to the surface,
do not use insect removing sponges, k itche n
sponges or similar items.
- Matte finish painted vehicle components:
- To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
- Never use protective wax.
It can destroy
the matte finish effect.
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish pa int. The paint could be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
On ly wash the vehicle in facilit ies specially de­
signed for that purpose. This will reduce the
risk of dirty water contam inated with o il from
entering the sewer system .
Placing your vehicle out
of service
If you wou ld like to take your vehicle out of serv­
ice for a longer time, contact you r authorized
Audi dealer or qualified repair facility. They will
adv ise you of important measur es, such as corro-
Care and cleaning
sion p rotection , maintenance and storage proce ­
dures . Also follow the information about the bat­
tery
C) pag e 200.
185

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fill up at busy gas stations where the seasonal
adjustment is more likely to be made in time.
(D Note
- Fuels containing a high pe rcentage of etha­
no l such as ESQ and E85 may only be used in
vehicles with f lexible fuel engines. Using
high ethanol fuel in veh icles not equ ipped
with flexible fuel engines can cause severe
engine damage.
- Methanol fuels which do not meet these re­ quirements may cause corrosion and dam­
age to plastic and rubber components in the
fuel system.
- Do not use fuels that fail to meet the spec i­
fied criter ia in this chapter .
- If you are unable to determine whether or
not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier .
- Do not use fuel for wh ich the contents can­
not be identified.
- Fuel system damage and performance prob­
lems resulting from the use of fuels differ­
ent from those spec ified are not the respon­
s ibility of Audi and are not covered under
the New Vehicle o r the Emission Cont ro l
System Warranties.
- If you experience a loss of fue l economy o r
driveability and pe rformance problems due
to the use of one of these f uel b lends, we
r ecommend that yo u switch to unb lended
fuel.
Ethanol fuel (Bio-ethanol)
Applies to vehicles: with flexible fuel engine
You can recognize vehicles with a flexible fuel
engine by looking at the label on the inside of the fuel filler flap.
Vehicles w ith f lexible fuel engines may be operat­
ed with bio-ethanol fuels such as E85 (85% e tha ­
nol and 15% gasoline) or with unleaded gasoline
(91 AKI/ROZ 95) . The vehicle may also be operat­
ed with a m ixt ure of these fuels.
Fu el and R efu elin g
Your f uel consumption wi ll increase when using
bio-ethano l fue ls due to the lower amount of en­
ergy contained per unit vo lume in ethano l.
Warming up the fle xible fuel engine in low
t e mperatu res
Due to the chemical composition of b io-ethanol,
a certain amount of fue l ends up in the engine oil
when driving short distances in
very low temper­
atures. This fuel evaporates again when the en­
gine is warmed up .
II Please w arm up eng ine .
If the driver message appears in the instrument
cluster disp lay, drive with a warm engine to re ­
duce the oil leve l.
(D Note
-Never fill with methano l or with a h igher
percentage of b io-ethanol than 85% (E85).
A highe r percentage of bio-ethanol in the
fue l can cause damage to the engine or to
the fuel system.
- If you use on ly E85, it is recommended to
fill the fue l tank complete ly w ith unleaded
premium grade gasoline every 5,000 miles.
- If you experience starting, rough id le or hes­
itat ion driveab ility problems, fill the fuel
tank complete ly w ith unleaded premium
grade gasoline and drive it normally unt il
the gaso line is used. See your author ized
Audi dea ler if the problem pe rsists.
- Inform your author ized Audi dealer that you
are operating or have operated the vehicle
w ith E85.
- Read and follow the information and t ips
about gasoli ne
c::> page 186 .
(D Tips
It may take longer to start the engine when
the outs ide temperature is
very cold. If possi­
ble, use winte rized fue l if tempe ratu res are
below free zin g.
187

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Checking and Filling
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 161 Typical layout for containers and eng ine oil filler cap
(D Eng ine o il filler cap ( @ Jump start point(+) under a cover
@ Brake fluid reservoir((();) .... .. .
@ Coolant expansion tank (- L) .. .. .
® Jump start point(-) with hex head
195
202,237
199
198
screw ... .. ............... .. . 202, 237
@ Windshield/headlight* washer con-
tainer
(Q) . . . . . . . . . . . . . . . . . . . 204
The position of the engine oil filling hole
c:> fig. 161 (item@) can differ depending on the
engine design .
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
c:> &. in Working in the engine compart­
ment on page 191.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
T he service interval disp lay in the instrument
cluster of your vehicle will inform you when it is
time for an oi l change . W e recommend that you
have your oil changed by an authorized A udi Serv ­
ice Advisor .
If you have to top off the oil between oil changes,
use the Audi oil qua lity standard specified in the
table .
Audi oil quality standard
Ga soline
VW 502 00 or
engine vw 504 00
193

Checking and F ill in g
Using the proper engine o il is important for the
functionality and service life of the engine. Your
engine was factory-fi lled w ith a high-quality o il
which can usually be used throughout the ent ire
year.
@) Note
Your L imited New Vehicle Warranty does not
cover damage or malfunctions due to failure
to follow recommended ma intenance and use
requ irements as set forth in the Audi Ow ne r's
Manual and Wa rranty
& Ma intenance booklet .
- Use only a high quality eng ine oil t hat ex-
pressly comp lies w ith the Audi o il quality
standard specified for your vehicle's e ngine .
Using a ny other oil can cause se rious engine
damage.
- Do not mix any lubricants o r othe r addit ives
i nto the engine oil. Doing so can cause en ­
g ine damage.
(D Tips
If you need to add oil and there is none availa­
ble that meets the Audi o il quality standard
y o ur eng ine requires, you m ay add a total of
no more than 0.5 quart/li ter o f a h igh-quali ty
"synthet ic"oil that meets the fo llowing speci ­
fications .
- V ehicles wi th gasoline engine: AC EA A3 o r
API SM with a viscosity grade of SAE 0W- 30,
SAE SW -30 or SAE SW-40 .
- Fo r more informa tion abo ut engine oi l that
has been approved for your vehicle, please
contact either you r a uthorized Aud i dea ler
or Audi Customer Relations at
1 (800) 822-2834 or visit o ur web site at
www .aud iusa.com or www .aud icanada .ca .
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all of
its moving parts .
In order to provide effective lubrication and cool­
i n g of internal engine components, all interna l
combustion engines consume a certai n amount
of oil. O il consumption var ies from engine to en­
g ine and may change significant ly ove r the life of
194
the engine. Typically, eng ines with a specif ied
break-in period (see
¢ page 177) consume mo re
o il dur ing the b reak -in per iod than they consume
after oil consumption has stabili zed.
U nder normal cond itions , the rate of oi l con ­
s u mption depends on t he qu ality and viscosity of
the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient tem ­
perature and road condit ions. Further factors are
the amount of o il di lution from water condensa ­
tion or fuel residue and the ox idat ion level of the
o il. As any engine is s ubject to wear as mileage
builds up, t he oil consump tion may inc rease ove r
t ime unt il rep lacement of wo rn component s may
become necessary.
With a ll these va riab les coming into p lay, no
sta ndard ra te of oil consumpt ion can be estab­
li shed or spe cified . There i s no altern ative to reg­
u la r and freq uent checking o f the oil leve l, see
Note .
If the yellow e ngine oi l leve l wa rning symbo l El
in the instr ument cluster lights up, yo u should
chec k the o il level as soon as possible
¢ page 195 . Top off the oil at your ear liest con ­
venience ¢page 195.
A WARNING
Before you chec k anything in the eng ine com­
partment, always read and heed a ll WARN­
INGS¢ .&. in Working in the engine compart­
ment on page 191.
@ Note
Driving with an insufficient oi l level is likely to
cause severe damage to the engine.
(D Tips
- The oil pressu re warning display. is not
an indicator of the oil level. Do not rely on
it . Instead, check the oil level in your en­
gine at regular intervals, preferably each
time you refuel, and always before going on a long trip.
- If you have the impression yo ur engine con­
sumes excessive amounts of oil, we r ecom-
mend that yo u consult an au tho rized Audi .,.