2016 AUDI A4 ECU

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Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 133
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . 136
Airbag system . . . . . . . . . . . . . . . . . . . . 138
Important information . . . . . . . . . . . . . . . 138
Fr ont airbags . . . . . . . . . . . . . . . . . . . . . . . 142
Monito ring the Advanced Airbag System . 148
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 1S2
Side curtain airbags . . . . . . . . . . . . . . . . . . lSS
Child safety . . . . . . . . . . . . . . . . . . . . . . 1S8
Important information . . . . . . . . . . . . . . . 158
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . 163
Securing child seats . . . . . . . . . . . . . . . . . . 167
LATCH system (Lower anchorages and
tethers for children) . . . . . . . . . . . . . . . . . 171
Addit ional information 175
Driver messages . . . . . . . . . . . . . . . . . 176
Intelligent Technology . . . . . . . . . . 176
Notice about data recorded by the Event
Data Recorder and vehicle control
modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
E lectronic Stabilization Control ( ESC) . . . . 177
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Electro-mechanical power assist, dynamic
steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Driving with your quattro . . . . . . . . . . . . . 182
Energy management . . . . . . . . . . . . . . . . . 182
Driving and the environment . . . . 185
Breaking in . . . . . . . . . . . . . . . . . . . . . . . . . 185
Avoid damaging the vehicle . . . . . . . . . . . 185
Driving through water on roads . . . . . . . . 185
Cata lytic converter . . . . . . . . . . . . . . . . . . . 186
Shutting down vehicle . . . . . . . . . . . . . . . . 186
Economical and environmentally-friendly
driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
allroad: D riving offroad . . . . . . . . . . . . . . . 188
Trailer mode . . . . . . . . . . . . . . . . . . . . . 190
Driving with a trailer . . . . . . . . . . . . . . . . . 190
Trailer mode notes. . . . . . . . . . . . . . . . . . . 192
Operating instructions ...... .. .. .
Care and cleaning ........... .. .. .
General information ..... ... .. .. .. .. . 193
193 193
~ Car washes . . . . . . . . . . . . . . . . . . . . . . . . . 193 ..... v:, .....
Table of contents
Cleaning and care information . . . . . . . . . 194
Placing your v ehicle out of service . . . . . . 197
Fuel and Refueling . . . . . . . . . . . . . . . 198
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Checking and Filling . . . . . . . . . . . . . 203
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Engine compartment . . . . . . . . . . . . . . . . . 20S
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Cooling system . . . . . . . . . . . . . . . . . . . . . . 208
Brake fluid .. .. .. .. ... ........... ... 2 11
Battery ......... .. ................. 212
Windsh ield/headlight* washer conta iner. 216
Wheels ...... .. .. ................. 217
Wheels and Tires ... ...... ....... .. .. 217
Tire pressure monitoring system 235
Troubleshooting . . . . . . . . . . . . . . . . . 237
Emergency assistance . . . . . . . . . . . 23 7
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . 23 7
Space-saving spare tire (compact spare
tire) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Inflatable spare tire . . . . . . . . . . . . . . . . . . 238
Inflating inflatable spare tire . . . . . . . . . . 239
Replacing wheels . . . . . . . . . . . . . . . . . . . . 240
Fuses and bulbs . . . . . . . . . . . . . . . . . . 246
Fuses..... .... .. ......... .... .... .. 246
Bulbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Emergency situations . . . . . . . . . . . . 250
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Starting by pushing or towing . . . . . . . . . . 250
Starting with jumper cables . . . . . . . . . . . 250
Useofjumpercables ................. 251
Towing with a tow truck . . . . . . . . . . . . . . 252
Raising the vehicle . . . . . . . . . . . . . . . . . . . 254
Technical data . . . . . . . . . . . . . . . . . . . . 255
Technical data . . . . . . . . . . . . . . . . . . . . 255
Vehicle identification ......... ...... . .
Weights ... ... .. .. ................ .
Dimensions .. .. . ... ................ . 255
255
256
3

Opening and clo sin g
- If the power locking system should fail, you
can still open the fuel tank flap in an emer­
gency ¢
page 202.
-You are well advised not to keep val uables
inside an unatte nded vehicle, v is ible or not.
Even a properly locked vehicle cannot pro­
v ide the security of a safe.
- If the LED in the upper edge of the driver's
door panel comes on for about 30 seconds
after t he vehicle is locked, there is a mal­
funct ion in the power lock ing or the anti­
theft warning system . Have the malf unct io n
cor rected by an authorized Audi dealership
or q ualified repair facility.
Key set
F ig . 18 Key set
m 0 ±
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@ Remote control key with mechanical key
You can centrally lock and unlock your veh icle
and start the engine w it h the master key with re­
mote cont rol. A mecha nical key is i nteg rated in
the master key ¢
page 33.
@ Eme rgency key
The emergency key is not intended for constant
use . It shou ld only be used in an emergency, for
example, in place of the ign ition key
¢
page 82 . Keep it in a safe place and do not
car ry it on yo ur key r ing.
Key replacement
If you lose a key, contact your author ized Audi
dealer immediately to have the
lost key disab led .
Be s ure to bring all your keys with you .
32
Number of keys
You can chec k the number of assigned keys to
your vehicle
r=;, page 11 . This a llows yo u to make
sure yo u have received all of the keys when you
purchase a used vehicle .
Data in the master key
During driving, serv ice and maintenance-re levan t
da ta is cont inuo usly stored on your master key.
You r A udi service adviser can read out this data
and te ll yo u about the work you r vehicle needs.
This applies also to veh icles with convenience
key* .
Personal comfort settings
If two people use one vehicle, it is recommended
that each person always uses "their own" maste r
k ey . W hen the ignit ion is turned off or when the
vehicle is loc ked, personal conven ience settings
for the following systems are stored and as­
signed to the remote master key.
- Climate control
- Power locking system
- Sea t memory *
- Park ing system*
-Adaptive cr uise control*
- Side assist*
- Drive select*
The stored settings are a utomat ica lly rec alled
when you unlock t he vehicle, when yo u ope n the
doo rs or when yo u turn on the ignition.
A WARNING
- Do not leave you r vehicle unattended with
the key in the ignition lock. Entry by una u­
thor ized persons could endanger you or re­
sult i n theft o r damage the vehicle .
- Do not leave childre n unattended i n the ve­
hicle, especially with access to vehicle keys .
Ungua rded access to the keys provides chil­
dren t he oppor tunity to start the engine
an d/or activa te ve hicl e sys tems s uch as the
powe r windows etc. Unsupervised ope ration
of any vehicle system by children c an res ult
in ser ious injury.
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-Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop . Otherwise the steer ing column
lock could suddenly engage -causing the
risk of an accident .
(D Tips
-The operation of the remote control key can
be temporarily d isrupted by interference
from transmitters in the vicinity of the vehi­
cle work ing in the same frequency range
(e .g. a cell phone, radio equipment).
- For security reasons, replacement keys are
only available from authorized Aud i dea ler .
- For Declaration of Compliance to Un ited
States FCC and Industry Canada regulations
<::;> page 261.
Removing the mechanical key
Fig. 19 Remote master key: removing t he m ec hani ca l key
.,. Press the release button@o fig. 19.
.,. Pull the mechan ical key ® out of the master
key.
Using the mechan ical key, you can :
- lock and unlock* the glove compartment on the
passenger's side o
page 66.
-lock and unlock the lockable* rear bench seat
and pass-through* o
page 69.
-activate the child safety locks on the rear doors
o page 41.
-lock and unlock the vehicle manually
opage 36 if this should not be possible with
the master key.
- use the ign ition key emergency release
o page 34.
Open ing and closing
Check light and battery in the master key
Fig. 20 Remote master key: re moving the bat tery holder
Check light in the master key
The check light@o fig. 20 in the master key
provides information about d ifferent conditions .
.,. The check light turns on briefly once when a
button is pressed, and during an "inquiry" by
the convenience key system.
.,. If the check light does not come on, the battery
is dead and has to be replaced . In addition,
when the battery is dead the
Ill indicator light
appears in the instr ument cluster display as
well as the message
Please change key bat­
tery .
Master key battery replacement
.,. Remove the mechanical key o page 33 .
.,. Press the re lease button ® o fig. 20on the bat­
t ery holder and at the same time pull the ba t­
tery holder out of the master key in the d irec ­
tion of the arrow .
.,. Insta ll the new battery CR 2032 with the"+"
sign facing down .
.,. Push the battery holder carefully into the mas­
ter key .
.,. Install the mechanical key.
@) For the sake of the environment
Dispose of dead batteries properly so as not
to pollute the environment.
@ Tips
The replacement battery must be the same
specificat ion as the original.
33

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"'To lock the vehicle, close the door and touch
the sensor in the door hand le
once ~ fig. 22
~ A in General description on page 31 . Do not
reach inside the door handle .
The vehicle can be locked and un locked at any
door . The remote control key cannot be more
than 1.5 m away from the door handle. It makes
no difference whether the master key is in your
jacket pocket or in your brief case .
If you grip the door handle while locking, this can
adversely affect the locking function.
It is not possible to re-open the door for a b rief
period directly after closing it. This allows you to
ensure that the doors are properly locked.
It depends on the settings in the radio or MMI*
whether the entire vehicle is unlocked or one of
the doors
~ page 36.
A WARNING
Read and follow all WARNINGS~&. in Gener­
al description on page 31.
@ Tips
If your vehicle has been standing for an ex ­
tended period, please note the following:
- The proximity sensors are deactivated after
a few days to save power. You then have to
pull on the door handle once to unlock the
vehicle and a second time to open the vehi­
cle.
- To p revent the battery from being dis­
charged and to preserve your vehicle's abili­
ty to start for as long as possible, the ener­
gy management system gradua lly switches
off unnecessary convenience functions. It is
possible that you will not be ab le to unlock
your vehicle using these convenience func­
tions .
- Fo r Decla ration of Comp liance to United
States FCC and Industry Canada regu lations
~page 261.
Open ing and closing
Locking and unlocking the vehicle from
inside
Fig. 23 Drive r's door; power lock ing sw itch
"' Press the button@ to lock the vehicle ~ &,.
"' Press the button 63 to unlock the veh icle
~ fig. 23.
If you lock the veh icle using the power lock ing
switch , please note the following:
- If a door is open, the veh icle cannot be locked
using the power locking system switch .
- You cannot open the doors or the rear lid from
the
outside (increased security, for example
when you are stopped at a red light).
- The diodes in the power locking switch illumi­
nate when a ll the doors are closed and locked .
- Front doors : you can unlock and open the doors
from the inside by pulling on the door handle.
- Rear doors: pull the door handle
once to re­
lease the lock. Pull the handle
again to open
the door .
- If you have a crash and the airbag is activated,
the doors automat ically unlock .
A WARNING ,-
-The power locking switch works with the ig-
n ition off and automatically locks the entire
vehicle when it is actuated.
- On a vehicle locked from the ou tside the
power locking system switch is ino perative.
- Locked doors make it more difficult for
emergency workers to get in to the vehicle,
which puts lives at ris k . Do not leave anyone
behind in the vehicle, especially children. ""
35

Opening and closing
Sedan: Rear lid emergency release
Applies to vehicles: w ith fixed rear seat backrest
F ig. 30 Rear bench seat : eme rge ncy release cable
On veh icles w ith fixed seat backrest*, the rear lid
can be opened from the rear bench seat using the
emergency release .
.. Carefully pull the left s ide of the rear bench
seat out of its reta iner until you can reach the
release cable
c> fig . 30 .
.. Remove the adhesive tape@ .
.. Pu ll on the loop@until the rea r lid releases.
.. Ta pe the release cable back in place and press
the bench seat back into its reta iner.
_& WARNING
After open ing the rear lid using the emergen ­
cy release in vehicles with a fixed rear seat
backrest, make sure the bracket under the
rear bench seat
c> fig. 30 locks securely into
the mounting eyelet again.
allroad: Rear lid emergency release
Fig. 31 Rear lid opening: access to the emergency release
The rear lid can be released in an emergency
from inside the lug gage compartment.
40
.. Remove the cover from the luggage compart­
ment lid.
.. Remove the mechanical key
c> page 33 .
.. Press the lever in the direction of the arrow
with the mechanical key until the luggage com­
partment lid releases .
Sedan: Trunk escape handle
In case of an emergency, the luggage compart­
ment lid can be opened from the inside using the trunk escape handle.
Fig. 32 Trunk escape hand le : v iew from inside th e closed
r ear lid
To open luggage compartment lid
.. Pull the handle down towards the bumper
¢fig.32.
The trunk escape handle inside the luggage com­
partment lid is made of fluorescent materia l to
glow in the dark.
A WARNING
The trunk escape handle is to be used only in
an emergency.
(D Tips
The emergency re lease lever should never be
used as a handle for closing the luggage com­
partment lid.

Opening and clo sin g
Valet parking
Applies to vehicles: with folding and lockable rear seatbacks
The valet parking feature protects the luggage
comportment from unauthorized access .
-
Fig. 38 Glove compartment: valet park ing button
You can sw itch the "va let park ing funct ion" on
when someone else is pa rk ing you r vehicle. When
the function is sw itched on, the vehicle can be
driven, locked and un locked using the master
key, but access to the luggage compartment is
not permitted .
• Take the mechanical key ou t of the master key
<=> page 33.
• Open the glove compartment r::!> page 66 .
• Activate
¢ fig. 38 the "valet parking" feature by
pressing the
! VALET I button. The indicator light
in the switch illuminates.
• Close the glove compartment and lock it with
the mechanical key.
• Lock both rea r seatbacks w ith the mechan ica l
key
¢ page 69.
• Lock the luggage compar tment pass-through
with the mechanical key<=>
page 74 .
• Leave the master key with the service personnel
for parking and keep the mechanical key with
you.
The fo llowing buttons are deactivated when the
valet parking function is switched on:
- 1""' 1 bu tton in the dr iver's door
- I a I button on the master key
- Handle in the rear lid
When the valet parking feature is activated, the message
V alet park ing activ ated appears in the
instrument cluster display when you switch the ignit ion on .
44
Garage door opener
(Homelink)
Description
Applies to vehicles: with garage door opener (Horne Link)
Fig. 3 9 Garage doo r opene r: exa mples of using w it h d iffer·
ent syste ms
You can act ivate vario us systems suc h as garage
doors, secur ity systems and home lighting from
inside your vehicle using the garage door opener
(Homelink) . There are three buttons for th is in
the veh icle headliner that can be in used in place
of up to three hand-held transmitters.
To operate systems using the garage door open­
er, the three buttons in the roof headliner must be programmed first .
A WARNING
Make sure no people or objects are in the im­
mediate vi cinity of the equipment when using
or p rogramm ing the ga rage door opener. Peo­
pl e can be injured and ob jects can be dam­
aged i f they are caught in the equipment.
(D Tips
- For sec urity reasons, we recommend that
yo u clear the prog rammed but tons before
sell ing t he ve hicl e.
- For add itiona l information about HomeL ink,
visit www.homelink .com .
- For Declaration of Compliance to United
States FCC and Indust ry Canada regulat ions
<=>page 261.

Light and Vision
Rear window sun shade
Applies to vehicles: with rear window sun shade
Fig. 52 With MMI: Button for rear window sun shade
F ig. 53 Withou t MMI: Button for rear window sun shade
• To extend/retract the sun shade, press the [iii)
button ¢ fig. 52 or ¢ fig. 53.
You can adjust the settings for the rear sun shade
so the shade retracts automatically when you se­
lect the reverse gear. To do th is, select the
I CAR !
function button>
Window s> Rear blind > auto­
matic > on
or! CAR ! function button> C ar sy s­
tem s*
control button > Vehicle settings > Auto­
matic rear blind > On .
The current se tting is au­
tomatically stored and assigned to t he remo te
key. The sun shade is extended again as soon as
the vehicle is traveling forward at a speed greater
than 9 mph (15 km/h) if the ignition has not
been switched off in the meant ime.
A WARNING
Whe n lowering or ra is ing the sunshade, make
sure there is nothing in its way and that it has
a free path to travel. This could cause person­
al injury.
54
@ Tips
- Pressing the button~ several times con­
secut ive ly can t rigger the overload protec­
t ion. The sun shade can only be extended/
retracted again after a brief wait ing per iod .
- The rear window sun shade o nly functions
when the veh icle inter ior is warmer than
14°F (-10°C).
Windshield wipers
Switching the windshield wipers on
f
• ®
• @
·®
• @
•®
Fi g. 54 Windshield wiper lever
* (!) ~ @
Fig. 55 allroa d: Rear wipe r actuat ion
Move the windshie ld w iper lever to the co rre­
sponding posi tion:
@ -Windshie ld w iper off
0
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" r-~ 0 :::, @ -Interval mode. To extend/shorten the w iper
i ntervals, move the switch @ to the left/right. In
vehicles with a rain sensor* the wipers turn o n in
the rain once the vehicle speed exceeds approx i­
mately 2 mph (4 km/h). The higher the sensitivi-
ty of the rain senso r* is set (sw itch @ to the
r ight), t he earlier the wi ndshield wipe rs reac t to
moist ure on the w indshield. In some models, yo u ..,.

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/! WARNING
The socket and the electrical accessories con­
nected to it operate on ly when the ignition is
switched on. Incorrect usage can lead to seri­
ous injuries or burns. For this reason, children
should never be left unattended in the veh icle
because this increases the risk of injury.
0 Note
- Never connect equ ipment that gene rates
electrical current, such as a solar pane l or
battery charger, to the 12-volt socket. This
could damage the ve hicle's electrical sys ­
tem .
- To avoid damag ing the socket, only use
plugs that fit properly .
@ Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle battery
can sti ll be dra ined .
Storing
General overview
A WARNING
-Always remove objects from the instrument
panel. Any items not pu t away cou ld slide
around inside the vehicle wh ile driving or
when accelera ting or when app ly ing the
bra kes or w hen driv ing around a corner.
- When you are dr iv ing make sure that a ny­
t hing yo u may have pla ced i n the cen ter con­
so le or other sto rage locations cannot fall
o ut into the footwells . In case of s udden
brak ing you would not be ab le to brake, de­
press the clutch or accelerate .
-Any pieces of clothing that yo u have hung
up must not interfere with the driver's view .
The coat hooks are designed only for light­
weight cloth ing . Never hang any clothing
with hard , pointed or heavy objects in the
pockets on the coat hooks . Dur ing sudden
brak ing or in an accident -especially if t he
airbag is deployed -these objects could in­
jure any passengers inside the vehicle.
Seats and storag e
(upholder
Fig. 71 Cen te r conso le : fr ont cuph older
Fig. 72 Rea r a rmrest: rear cupho lder
Opening rea r cupholders
.. To open the cupho lder, press on the symbol ii
® qfig . 72 .
.. To adjust the arm @, sw ing it in the direction
of t he a rrow .
.. Place t he beverage in the holder and release
the arm. The arm swings bac k by i tself and a u­
t oma tically secures the beve rage.
Closing cupholders
.. To close the cupholder, press on the center sec ­
tion between the two arms and push the cu­
pho lder in the slot as far as it wi ll go.
A WARNING
Spi lled ho t liqu id can cause an accident an d
personal injury .
- Never carry any beverage c ontai ners w ith
hot liq uids, such as hot coffee or hot tea, in
t he vehicle whi le i t is movi ng. In case of an
accide nt, sudden brak ing o r other ve hicle
movement, hot liquid co uld spill , ca using
scalding burns. Spilled hot liqu id can also
cause an accident and personal injury.
65