2016 AUDI A3 check engine

Check ing and F illing
Al ways read and heed all WARNING S below
¢
A and ¢ A in Working on the battery on
page 248.
... Swi tch off the ignition and all electrical con­
sumers .
... Make sure the area is well ventilated when you
charge the battery.
... Open the engine hood ¢
page 23 7.
... Open the red cover on the positive pole
¢fig . 200.
... Clamp the cha rge r terminal clamps as instruct­
ed on the
batt ery terminal (+ ) and only on the
bo dy ground poin t(·).
... Only now pl ug the mains lead for the charging
equipment into the wall outlet and turn it on
¢£ .
... Make su re the ch arg ing rate is not o ver
3 0 a mp s/ 1 4.8 Volt.
... When the battery is fully charged: Turn the
charg ing equipment off and remove the mains
lead from the wall outlet.
... Now remove the clamps fo r the charging equ ip-
ment .
... Close the red cover on the positive pole.
... Close the hood ¢
page 238.
A discharged battery can freeze at temperatures
of only 32 F
0 (0 °C). A llow a frozen battery to
thaw comp letely before attempt ing to c harge it
¢
.&. . However, we recommend not us ing a
thawed batte ry again because the battery casing
can be cracked due to ice formation and can leak
battery acid.
Battery charging (Ma ximum charging rate of
30 amp s/ 14.8 Volt )
When charging at low voltages (e.g. with a trick­
le charger ),
the battery cables do not have to be
d isconnected first. The battery caps should
not
be opened when charging a battery.
It is not necessary to remove the battery from
the lu ggage compartment, and it is also not nec­
essary to disconnect the cables.
250
Fast charging the battery (charg ing rat e
abov e 14.8 Volts )
For technical reasons do not use a battery charg­
er that uses voltage greater than 14.8 Volts to
charge your veh icle's battery.
A WARNING
Charg ing a battery can be dangerous .
-Always follow the operating instructions
provided by the battery charger manufactur­
er when charging your battery .
- Never charge a frozen battery.
It may ex­
plode because of gas trapped in the ice. Al­
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery hous ing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area .
Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat­
ed by the batte ry is explosive .
- To reduce the danger of explosion, never
connect or d isconnect charger cables while
the charger is ope rating .
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
technician w ith the prope r equipment.
- Batte ry acid that may spill during charging
should be washed off w ith a so lution of
warm water and baking soda to neutra lize
the ac id.
{[) Note
Never use a fast cha rge r as a booster to start
the eng ine. This will se riously damage sensi­
tive elec tronic components, such as control
u nits, re lays, ra dio, e tc., as well as the ba ttery
charger.
Battery replacement
The new battery must hove the some specifica­
tions and dimensions as the original equipment
battery .
Intelligent energy man agement in yo ur vehicle is
r esponsib le for d istr ib uting the elec trica l energy ..,.

Checking and Filling
Service interval display
The service interval display detects when your ve­
hicle is due for service.
The service interval display works in two stages:
-Inspection or oil change reminder: after a cer-
tain distance driven, a message appears in the
instrument cluster display each time the igni ­
tion is switched on or off . The remaining dis­
tance or time is displayed briefly.
- Inspection or oil change due: if yo ur vehicle
has reached an inspection or oi l change interval
or both intervals at the same time, the mes­
sage
Inspection due! or Oil change due! or Oil
change and inspection due!
appears briefly af­
ter switching the ignition on/off .
Checking service intervals
You can check the remaining distance or time un­
til the next oil change or next inspection in the
MMI. Select the
I MENU I button> Car> Systems *
control button > Service & control > Service in­
tervals .
Resetting the indicator
Your authorized Audi dealer or authorized Audi
Serv ice Facility will reset the serv ice interval dis­
p lay after performing service.
If you perform an oil change yourself to the Audi
specifications, you must reset the service interval
d isp lay.
To reset the display, select the
I MENU ! button >
Car > Systems * control button > Service & con­
trol
> Service intervals > Reset oil change inter­
val.
([) Note
-Only reset the oil change indicator if the oil
was changed.
- Following the service intervals is critical to
maintain ing the service life and va lue of
your vehicle, especially the engine. Even if
the m ileage on the vehicle is low, do not ex­
ceed the time for the next service.
- Calculating the time to the next oil change
i s interrupted when the ve hicle battery is
disconnected. If the vehicle is not driven for
252
a long period of time, check the mainte ­
nance schedule so that you can fo llow the
maintenance intervals.

.... N
0 > CX)
.... I.Cl U"I
.... I.Cl ....
both tabs on the side panels ¢ fig. 209 (top im ­
age).
.. A3 Sedan: clip the plastic hook@ into the lug ­
gage compartment seal¢
fig. 209 (bottom im­
age) .
Side panel
.. Open the twist lock and remove the cover @* I
@ ¢fig. 208 .
.&_ WARNING
Improper use of the vehicle jack can cause se­
rious personal injuries.
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts cannot
atta in the necessary tightening torque if you
use the hex head, potentially caus ing an ac­
c ident.
- The factory-supplied jack is intended only
for your vehicle model. Under no circum­
stances should it be used to
lift heavy
vehicles o r other loads; you r is k inju ring
yo urself.
- Never start the engine when the vehicle is
ra ised, whi ch could cause an accide nt.
- Support the veh icle secure ly with app ropr i­
ate stands if wor k is to be perfo rmed under­
neath t he vehicle; otherwise, the re is a po­
tent ial risk for in jury.
- Never use the jack s upplied with your Audi
on another vehicle, par tic ularly on a heav ier
one. The jack is only suitab le for use on the
vehicle it came with .
(D Tips
The vehicle jack* in your vehicle is mainte­
na nee-free.
Tire mobility kit
Preparation
A ppl ies to vehicles: W ith t ire re pair set
.. Read and fo llow th e import ant saf ety pr ecau­
tion s¢
page 280, General information .
.. Check if a repair w ith the t ire mobility k it is pos­
s ible
¢ page 281.
Emergen cy a ssis tanc e
Using the tire mobility kit
App lies to vehic les : With tire r epair set
F ig. 210 T ire: t ire damage t hat cannot be repaired
The tire repair is only meant for temporary use.
Change the spare tire as soon as possible <=>,&. .
If the t ire is p ierced by an object such as a nail,
do not remove the object from the tire.
The tire repair set is ab le to be used at tempera­
tures as low as - 4 °F (- 20 °C).
The t ire mobility kit may not be us ed:
- if the ti re has cuts or punctures that are larger
than
0 .1 6 in (4 mm)@ ¢ fig. 210.
-if the rim is damaged @.
- if you drove with very low t ire pressure or with-
out air in the tire @.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance in these situations .
.&_ WARNING
>=
-Please note that the tire mobility kit cannot
be used in all situations, and that it may on­
ly be used temporarily.
- The tire sealant must not come in contact
wit h skin, eyes, o r clothes.
- If ti re sealant gets in you r eyes or on yo ur
skin, tho ro ughly rinse the affected area im­
mediately wi th clea n wate r.
- Do not inha le the fumes.
- If you swallow any of the tire sealant, thor-
ough ly rinse your mouth immediately and
drink a lot of water . Do not ind uce vomiting.
Seek med ica l attent io n immed iate ly .
- Change yo ur clothes immediately if they get
tire seala nt on them.
~
281

.... N
Fuses and bulbs
Electrical fuses
Replacing fuses
A fuse that has blown will have metal strips tha t
have burned through .
Fig. 224 Steer ing colu mn area : cove r
Fig. 225 Left side of the engin e com partment : fus e cover
Fuses in the interior
The fuses are behind the cover in the steering
column area
¢fig. 224.
• Switch the ign ition and all electr ical equipment
off .
• Check the following table to see which fuse be­
longs to the equipment
r::!.> page 292.
• Remove the cover ("AIRBAG" label)
¢ fig. 224.
Begin at the bottom right corner -arrow- .
• Remove the plastic clip from the fuse panel
cover in the engine compartment ¢
fig. 225.
• Remove the fuse using the plastic clamp.
• Replace the burned fuse with an identical new
one .
• Install the cover .
~ Fuses in the engine compartment CX)
rl
~ •Turnoff the ignition and the failed electrical
~ equipment . ....
Fuses and bulbs
• Check the following table to see which fuse be­
longs to the equipment¢
page 293.
• Remove the fuse panel cover r::!.> fig. 225.
• Remove the plastic clip from the fuse panel
cover¢
fig . 225 .
• Remove the fuse using the plastic clamp .
• Replace the burned fuse with an identical new
one .
• Reinstall the cover.
The individual circu its are protected by safety
fuses . The fuses are located under the steering
wheel beh ind a cover and in the left side of the
engine compartment .
Fuse color identification
Color Current rating
in amps
Black 1
Purple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
White or transparent 25
Green 30
orange 40
A WARNING
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rating .
This can cause damage to the electr ical sys­
tem and a fire.
(D Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili­
ty.
(0 Tips
- Th e following table does not list fuse loca­
tions that are not used.
291

,....,
N
0 > co ,...., Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
ope rations.
Starting by pushing or
towing
(D Note
Veh icles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle.
Plug-in hybrid drive*: the connection points for
the jump start cables vary ¢
page 108.
If the engine should fail to start because of a dis ­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of suffic iently large cross
section
to carry the starter current safely. Refer
to the manufact urer 's specifications.
Use only jumper cables with
insulated term inal
clamps which are distinct ly ma rked:
plus (+) cable in most cases colored red
minus (-) cable
in most cases colored black .
.,&. WARNING -
Plug-in hybrid drive*: you must not give a
jump start with your vehicle. This could cause significant damage to the electrical system in
your vehicle ¢
page 108.
Emergency situations
.,&. WARNING
-
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury . Follow the instruct ions below for safe
handling of your vehicle's battery.
- Always shield your eyes and avoid leaning over the battery whenever possible.
- A discharged battery can freeze at tempera­
tures just below 32 °F (0 °C) . Before con­
necting a jumper cable, you must thaw the
frozen battery completely, otherwise it
could explode.
- Do not allow battery acid to contact eyes or
skin. Flush any contacted area with water
immed iate ly.
- Improper use of a booster batte ry to sta rt a
veh icle may cause an exp losion .
- Veh icle batteries generate exp losive gases .
Keep sparks, flames and lit cigarettes away
from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12 volt rat ing. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­ ly different "Ah" rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery . Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen. The battery case may have been
weakened.
- Use of batteries with different voltage or
substantially different Ah rating may cause
an explosion and injury. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery .
- Before you check anyth ing in the eng ine
compartment, always read and heed all
WARNINGS
¢page 236.
(D Note
-App lying a higher voltage booster battery
will cause expensive damage to sensitive
295

,....,
N
0 > co ,...., 9. In the veh icle that is being jump started,
switch the heater fan and rear window de­
froster on to reduce any voltage peaks that
may occur when disconnecting the jumper
cab les. The he adlights must be switched off.
10 . With the engines running, remove the cables
i n
reverse order of the way they were instal­
l ed . Make sure the cables do not get caught
in mov ing engine components.
11. Sw itch the heater fan and rear w indow de-
froster off.
12. Close the battery cover .
The battery is vented to the o utside so that not
gases enter the passenger compartment. Make
sure that the connected positive terminal clamps
on the jump start cab le have sufficient contact
with m etal.
.&_ WARNING
Follow the warnings and instructions from
the jump start cable manufacturer to reduce
the risk of serious injuries and vehicle dam­
age. If you are unsure about anything, call
roads ide assistance.
- The jump start cables must be long enough
so that the veh icles do not touch .
-
-Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment .
- Always read and follow the warnings before
check ing anything in the engine compart­
me nt ¢
page 236.
Connecting jump start cables incorrectly can
destroy the alternator .
- Always connect the positive terminal(+) to
the positive term inal( +) and the negative
term inal(-) to the negat ive termi nal( -) on
the body ground po int, but not the negative
te rminal on t he battery.
- Make sure the screw plugs on the battery
ce lls are installed securely .
If not, tighten
the p lugs before connecting the clamps to
the negat ive termina l on the battery.
- Please note that the connecting p rocess de­
scribed below for the j ump start cables is in-
Emergency s ituatio ns
tended for when your vehicle is be ing j ump
started.
If you are jump starting another ve­
hicle, do not connect the negat ive cab le to
the negative term inal( -) on the dra ined
battery, but rather connect it to a large
metal component that is bolted secure ly to
the engine block, or to the engi ne b lock it­
self . If the batte ry in the veh icle being jump
s tarted is not ven ted to the outside, there is
a risk of explos ion due to hyd rogen gas .
- Make sure that the connected pos itive ter­
m inal clamps have suff ic ien t conta ct with
metal.
- Do not use the battery negative terminal for
jump starting or a m alfunction co ul d o ccur
in the vehicle e lectrica l system.
Towing with a tow truck
General hints
Your Audi requires special handling for towing.
T he following information is to be used by com ­
mercial tow truck operators who know how to op­
e rate th eir equipment safely.
- Ne ver tow your Audi. Towing will caus e dam­
age to the engine and tr ansmi ssion.
- Neve r wrap th e safety ch ains or win ch c able s
a round the brake lin es.
- To pr event unn ecess ary damag e, your Audi
must be tran sport ed with a flat bed tru ck.
- To load th e ve hicl e on to the flat bed, use the
towin g loop found in the v ehicle tools and at ­
t ac h t o the front o r rea r anchorage
¢ page 298 and ¢ page 298 .
.&_ WARNING ~
A vehicle being towed is not safe for passen-
gers. Never allow anyone to ride in a vehicle
being towed, for any reason.
297

Emergency situations
distribut ion and ba lance . This might hap ­
pen, for example, when heavy compo­
nents such as the engine block or trans­
miss io n are removed.
- When removing heavy components like
th ese, a nch or vehicle to ho ist o r add corre­
sponding weights to maintain the cen ter of
gr avity. Otherwise , th e vehicle migh t ti lt or
s li p off the h ois t, causing ser ious perso nal
rnJury.
0 Note
- Be aware of t he following poi nts before lift­
i ng t he veh icle:
-The vehicle should never be lifted or
jacked up from underneath the engine oil
pan , the transmission housing, the front
or rear axle or the body side members.
This could lead to serious damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be in·
serted between the floor jack and the lift points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity of
the hoist .
- Before driving over a workshop hoist, en­
sure that there is sufficient clearance be­
tween the hoist and low parts of the ve ·
hide .
300

today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the n ature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and o ther
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and
its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any other properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nanc e and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­ ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you check anything in the engine com-
,.., partment, always read and heed all WARNINGS
N
~ c::> .&. and c::> page 236.
co ,...., Consumer information
A WARNING
-Serious personal injury may occur as a result
of improperly performed maintenance, ad ­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac ­
cepted safety practices and general com­ mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fully familiar with these
or other procedures with respect to the ve­ hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or an­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor vehi­ cle is a potentially hazardous area. Never
reach into the area around or touch the radi­
ator fan.
It is temperature controlled and
can switch on suddenly - even when the en­
gine is off . The radiator fan switches on au ­
tomatically when the coolant reaches a cer­
tain temperature and will continue to run
until the coolant temperature drops.
- Always switch off the ignition before anyone
gets under the vehicle .
-Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle . The jack supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that
the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in P (Park
position) and the park brake is applied .
II>
307