2015 AUDI A4 ECU

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Luggage compartment cover
Applies to vehicles: with luggage compartment cover
Fig. 77 Luggage compartment: cover hanging in pos i­
t ion @
Fig. 78 R ight front section of the luggage compart­
ment: remov ing the luggag e compartment cover
The luggage compartment cover can be hung
in position @or in the comfort position @
¢fig. 77.
Extending/Retracting
You can only extend and retract the cover in
the @ position .
• Pull the cover out and attach it in position
@ in the moun ting eyelets in the side trim.
Comfort position
In pos ition @, the cover does not need to be
removed to unload the luggage compart·
ment.
• To move to position @, tilt the end of the
cover upward from the bottom when the
cover is extended. It will then move into po·
s ition @ by itself ¢
fig. 77 .
Removing
• Pull the lever in the direction of the arrow
¢
fig . 78 while lifting the cover out .
Seats and storage 71
Installing
• Place the left side of the cover in the mount
on the side trim.
• Press the cover down into the rig ht mount
until it locks into place.
A WARNING
=
Whenever driving, never place any hard or
heavy objects on the luggage compart·
mentor allow pets to sit on the luggage
compartment cover . They could become a
hazard to vehicle occupants in the event of
sudden braking or in an accident.
ffi Note
Let the luggage compartment cover roll up
slow ly to avoid damage.
Enlarging the luggage compartment
Applies to vehicles: wit h fo lding rear seatback
The rear seat backrests can be folded forward
either separately or together.
Fig. 79 Backrest : relea se lever, securing knob and
l a tc h*
Folding the backrest forward
• Pull the release lever @¢ fig. 79 in the di­
rection of the arrow and fold the backrest
forward.
Folding the backrest back into the upright
position
• Fold the backrest back up again until it
latches and the red marking @ is no longer
visible ¢
_&..
Sedan: You can lock the backrest when it is
latched in place using the mechanical key

7 2 Seats and storage
.::> page 33 ©.::>fig. 79 . This prevents any ac­
cess to the luggage compartment from the
vehicle interior.
You can on ly enlarge the luggage compar t­
ment if the backrest is not locked .
~ WARNING
-
-The backrest must a lways be securely
latched so that the safety belt of the cen­
ter seating pos ition can work properly to
help protect the occupant .
- The backrest must be secure ly latched in
posit ion so that no items contained in
the luggage compartment can slide for­
ward upon sudden braking .
- Always check whether the latch is f ully
engaged by pu lling the seatback for­
wa rd.
- Never allow safety belts to become dam­
aged by being caught in doo r o r seat
hardware.
- Torn or frayed safety belts can tear and
damaged belt ha rdware can break in a
c rash. Inspect the be lts periodica lly.
B elt s showing damage to webbing, bind­
ings, buckles, or retractors must be re­
placed.
(D Note
- If you move the front seat back when the
r ear seat ba ckrest is fo lded fo rward, yo u
could d amage t he head res tra ints on the
rear sea t.
- Slide the belt guide on the outside safety
belt all the way up before folding the
backrest back forward. Make su re the
seat belt is not pinched o r damaged
when the rear seat backrest if folded back. Other objects shou ld be removed
from the rear seat bench to protect the seatback from damage. Partition net (seatback in upright
position)
Applies to vehicles: with partition net
The partition net is designed to pr event loose
objects from flying forward into the passen­
ger compartment (e.g. under sudden brak­
ing).
Fi g. 80 Beh ind t he backrest : hang ing t he part itio n net
Fi g. 8 1 Beh ind t he backrest: re m ov ing the part it ion
ne t
Hanging
.,. Pull the net upward . Hang the c rossbar in
the rear eye lets
over th e re ar bench seat
¢ fig. 80 -arrow-.
Removing
.,. Ti lt the seatback forward.
.,. Press the left and right release knobs
¢ fig. 81 -arrow-and pull the net upward
and out.
Installing
• Ti Lt the seatback forward
¢ page 71 .
.,. Move the partition net left and right in the
retain ing clamp .
.,. Press the partition net down diagonally at
t he left and right until it locks into place and
t he red ma rkings o n the bu ttons are no lon-
ger v is ible. ..,.

7 4 Seats and storage
If nothing is hung on the hooks, they will fold
back in by themselves.
In a collision, the laws of physics mean that
even smaller items that are loose in the vehi­
cle will turn into heavy missiles that can cause
serious injury. Items in the vehicle p ick up ki­
netic energy which varies with the vehicle and
the weight of the item . Vehicle speed is the
most significant factor .
For example, in a frontal collision at a speed
of 30 mph (48 km/h), the forces acting on a 10-lb (5 kg) object a re about
20 times the
normal weight of the item. This means that
the weight of the item would suddenly be the
equ ivalent of about 200 lbs (90 kg). One can
easily imagine the injuries that an item of that
weight flying freely through the passenger
compartment can cause in a collision at a
speed considered relatively low .
8_ WARNING
Weak, damaged or improper straps used
to secure items to tie-downs can fail dur­ ing hard braking or in a collision and cause
serious personal injury.
- Always use suitable retaining straps and
properly secure items to the tie-downs in
the luggage compartment to help pre­
vent items from shifting or flying for­
ward .
- Never attach a child seat tether strap to
a tie -down.
- For strength-related reasons, the mount­
ing hooks can only be used to secure ob­
jects weighing up to 10 lb. (5 kg) . Heavi ­
er objects will not be adequately secured
- there is a r isk of injury.
Tie-downs
Applies to vehicles: with tie-downs
Four tie-downs for securing luggage pieces
and two for hanging bags , sacks, etc. are
lo­
cated in the luggage compartment.
Fig. 86 Lugg age compart ment: tie-down s
,.. Secure objects using elastic cords attached
to the tie-downs* ¢
fig. 86.
,.. Read and heed all WARNINGS ¢ page 132,
Stowing luggage .
· Bag hooks
Applies to vehicles: with bag hooks
Light objects can be secured on the hooks.
Fig. 87 Right side of the luggage compar tment : bag
hook s
You can also use the hooks to hang light purs­
es, bags, etc.
_&. WARNING
The hooks can hold a maximum weight of
3 kg. Heavier objects are not adequately
secured. There is risk of personal injury.

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Luggage compartment covering (reversible mat )
Applies to vehicles: w it h lugg ag e compart men t cove ring
The reversi ble mat protects the luggage com­
partment and bumper from dirt and scratch­ es.
Fig. 88 Luggage compartment: reversible mat wit h
backrest folded forward
You can use the reversible mat with the dirt­
resistant side or the decorative side. After
loading or unloading, fold up the reversible
mat and close the luggage compartment lid.
Only store the reversible mat if it is dry .
Securing attachments
Applies to vehicles: with sec uring attachments
The securing attachments prevent objects in
the luggage comportment from sliding bock
and forth.
,.
Fig. 89 Luggage compart men t: securi ng attachments
Make sure the backrests are folded upright
and the partition net is installed¢.&_ .
Installing securing strap @
.,. Set the holder for the securing strap in the
opening of the track system.
.,. Push the holder down
(D and slide it into
the desired position.
Seats and storage 75
.,. Check that the holder has latched into place.
.,. Push the knob on the front side of the hold­
er @ to tighten the strap.
Installing telescoping rod @
.,. Insert both brackets for the telescoping
rods into the openings in the rails .
.,. Push the holder down
(D and slide it into
the desired position .
.,. Check that the holder has latched into place.
The securing strap can also be attached as
needed on the right side of the track system
instead of the telescoping track¢
fig. 89.
&_ WARNING ~
-The backrest must be securely latched in
position so that no items contained in
the luggage compartment can slide for­
ward upon sudden braking.
- Loose items inside the passenger com­
partment, can fly forward in a crash or
sudden maneuver and injure occupants.
, Ski sack
App lies to vehicles: wit h ski sack
Long objects such as skis or snowboards con
be transported in the ski sock.
Fig. 90 Backrest: pass-through cover
Fig. 91 Rear bench seat: sec uring the sk i sack

76 Seats and storage
Loading
.,. Fold the rear seat center armrest down .
.,. Fold the pass-through cover
¢
fig. 90 -arrow -down.
.,. Slide the ski sack from the luggage com­
partment through the pass-through with
the z ipper at the rear ¢.&. -
Securing
.,. Insert the ski sack strap @ ¢fig. 91 in the
center buckle @.
.,. Pull the safety belt taut on the free end of
the belt @.
A WARNING
-The ski sack is intended only for the
transportation of skis and other light ob ­
jects . To reduce the risk of serious per­
sonal injury, never transport heavy or
pointed objects in the ski sack.
- When braking rapidly or during an acci­
dent, the load could be displaced and
cause injury to occupants.
- Sharp edges on the load must be covered
for protection. Always fasten the belt
tightly around the sack and its contents
¢fig. 91.
- For safety reasons, do not transport
more than two pairs of skis in the ski
sack.
- You must secure the ski sack with the
strap after loading.
- Make sure that all objects you are trans­
porting in the pass-through are secured.
Otherwise they could slide around during
sudden braking maneuvers and cause in­
juries.
(D} Tips
- Never stow the ski sack away when it is
still wet or damp (for example, snow
melting from skis). Allow it to dry com­
pletely before stowing it away.
- When transporting skis or snowboards,
tighten the securing strap between the
bindings. -
Position skis in the ski sack with the
pointed ends facing the front and ski
poles with the pointed ends facing the
rear.
- Sedan: You can lock or unlock the pass­
through using the mechanical key. This
prevents any access to the luggage com­
partment from the vehicle inte rior.
Reversible cargo area floor (dirt
collecto r)
Applies to vehicles: with reversible cargo area floor
You con transport dirty or damp objects in the
reversible cargo area floor
Fig. 92 Luggage compart ment : cargo area floor
Fig. 93 Luggage compartment: cargo area floor re·
versed
Reversing the cargo area floor
.,. Lift the cargo area floo r using the handle
¢ fig. 92 -arrow- .
.,. Flip the floor over and install it.
Parcel shelf
., U1 .,
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The parcel shelf behind the rear seatback can
be used to carry light items of clothing .
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Shift to N or P to start engine
This message appears when attempting to
start the engine if the selector lever for the
automatic transmission is not in the P or N
position. The engine can only be started with
the selector in these positions .
!!I Is the key in the vehicle?
This message appears if the master key is re­
moved from the vehicle with the engine run­
ning.
If the master key is no longer in the ve­
hicle, you cannot switch on the ignition after
stopping the engine and you also cannot start
the engine again. Moreover, you cannot lock
the vehicle from the outside with the key.
Shift to P otherwise vehicle can roll away.
Doors do not lock if lever is not in P.
This message appears for safety reasons
along with a warning signal.
It appears if the
selector lever for the automatic transmission
is not in the P position when switching off the
ignition. Move the selector lever to the P posi­
tion, otherwise the vehicle is not secured
against rolling away. You also cannot lock the
vehicle using the locking button* on the door
handle or using the remote key.
Convenience key defective! Use ignition lock
This message appears if the engine must be
started or stopped using the ignition key and
not the
I START ENGINE STOP! button.
On the road 87
Electromechanical
parking brake
Operation
The electromechanical parking broke replaces
the hand broke.
Fig. 101 Center co nsole: Parking b rake
.,. Pull on the switch@¢ fig. 101 to apply the
parking brake. The indicator lights in the
switch and • (USA models) . (Cana-
da models) in the instrument cluster illumi­
nate .
"'With the ignition switched on, step on the
brake pedal or the accelerator pedal and
press the switch @at the same time to re­
lease the parking brake. The indicator lights
in the switch and. (USA models)/ . (Can­
ada models) in the instrument cluster go
out.
Your vehicle is equipped with an electrome­
chanical parking brake. The parking brake is
designed to prevent the vehicle from rolling unintentionally and replaces the hand brake.
In addition to the normal functions of a tradi­
tional hand brake, the electromechanical
parking brake provides various convenience
and safety functions .
When starting from rest
- The integral starting assist helps you when
driving by automatically releasing the park­
ing brake ¢
page 88, Starting from rest.
-When starting on inclines , the starting as-
sist prevents the vehicle from unintentional-
ly rolling back. The braking force of the
parking brake is not released until sufficient
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-Do not ride the brakes or press the brake
pedal too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases
braking distance or causes complete fail­
ure of the brake system.
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it
in place with the brake pedal or parking
brake.
- Never hold the vehicle on an incline with
a slipping clutch. The clutch opens auto­
matically when it becomes too hot from
the overload. An indicator lamp
mJ illu­
minates and a driver message appears
¢ page 99 when the clutch is overload­
ed .
- If the engine must remain running, never
have any driving position engaged when
checking under the hood. Make sure the
selector lever has securely engaged and
is locked in P with the parking brake set
¢ page 212. Otherwise, any increase in
engine speed may set the vehicle in mo­
tion, even with the parking brake ap­ plied .
0 Note
-S tronic- and tiptronic transmission:
When stopping on an incline, do not try
to hold the vehicle in place by pressing
the accelerator pedal while a driving gear
is selected. This can cause the transmis­
sion to overheat and can damage it. Acti­
vate the parking brake or press the brake
pedal to prevent the vehicle from rolling.
- S tronic- and tiptronic transmission: Al­
lowing the vehicle to roll when the en­
gine is stopped and the selector lever is in N will damage the transmission be­
cause it is not lubricated under those cir­
cumstances .
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driv ­
er's safety belt is engaged in the buckle.
Transmission 97
Hill descent control
App lies to vehicles : wi th mult itronic/ S tro nic/tiptro nic
The hill descent control system assists the
driver when driving down declines .
Hill descent control is activated when these­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is suitable for the incline. Hill de­ scent control tries to maintain the speed ach­
ieved at the time of braking, within physical
and technical limitations. It may still be nec­
essary to adjust the speed with the brakes.
Hill descent control switches off once the de­
cline levels out or you press the accelerator
pedal.
On vehicles with the cruise control system*
¢ page 91 , hill descent control is also activat­
ed when the speed is set.
.&_ WARNING
-
Hill descent control cannot overcome
physical limitations, so it may not be able
to maintain a constant speed under all
conditions. Always be ready to apply the brakes .

108 Audi adapti ve cruise control and br aking guard
- If a co llision is imminent, the system will
first provide an
acute wa rning by bri efly and
sharp ly app ly ing the brakes .
- If you do not react to the ac ute warning ,
braking guard can brake within the limits of
the system. This reduces the veh icle speed
in the event of a collis ion.
- At speeds under 20 mph (30 km/h), the sys ­
tem can in it iate a complete deceleration
s hortly before a collision
l) .
-If the braking guard senses that you are not
braking hard enough when a collision is im­
minent, it can increase the braking force.
Which function s can be contr oll ed ?
You can switch braking g uard and the dis­
tance/approach warning on or off in the radio
or MM I c> poge 108, Settings in the radio/
MMI.
A WARNING
Lack of attention can cause col lisions, oth­
er accidents and serious persona l injuries.
The b raking guard is an assist system and
cannot p revent a col lis ion by itself. The
dr iver m ust always in tervene . T he d rive r is
always responsib le for br aking at the cor­
rect time.
- Always pay close attention to traffic,
even when the bra king guard is switched
on. Be ready to intervene and be ready to
take complete control whenever necessa­
ry. A lways keep the safe and legal dis­
tance between your vehicle and vehicles
up ahead.
- Braking guard works w ith in limits and
will not respond outs ide the system lim­
its, for example when approaching a
stopped vehicle or stationary obstacle
(end of a traff ic jam or veh icle that has
broken down in traffic).
- Always remember that the radar sensor
for the braking guard wo rks only within
defined detection and range limits that
l ) Th is is not available in some c oun tri es.
may prevent the proper detection of oth­
er vehicles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving veh icles up ahead may not
be prompt ly detected or may not be de­
tected at all .
- Reflective surfaces including crash barri­
ers or tunne l entrances may impair the
function of the radar sensor .
(D Tips
- You can cancel the braking that is in it iat­
ed by the system by braking yourse lf, by
accelerating not iceably or by swerving .
- Braking guard error messages
c>poge 109.
- Keep in mind that brak ing guard can
brake unexpectedly. Always secure any
cargo or objects that you are transport­
ing to reduce the risk of damage or in­
jury .
Settings in the radio/MMI
App lies to vehicles : wit h Audi ada ptive cr uise contro l
., Select: !CARI function button> Car sy ste m s*
contro l but ton > Driver a ssist> Audi brak ­
ing guard .
Or
., Select: !CAR I function button> Audi b raking
gua rd.
S ys tem -
Switch A udi braking guard On and
Off . When you switch the ignition on, the
message
Audi b raking guard off appears if
the system is switch ed off .
Ea rly warnin g -The distance and approach
warnings in the display can be switched
On/
Off .
(D Tips
-Yo ur settings are automatically s tored
and assigned to the remote contro l key
being used at the times the settings are
made.