2021 AUDI A6 ECU

Storage and convenience


cover is not a surface for storing objects. Ob-
jects placed on the cover increase the risk of
injury to all vehicle occupants during sudden
driving or braking maneuvers or in the event
of an accident.
— Applies to: vehicles with luggage compart-
ment cover: The luggage compartment cov-
er must always be securely fastened when in
use to reduce the risk of an accident.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Always stow objects securely in
the luggage compartment and secure them
at the tie-downs. Use straps suitable for
heavy objects.
— If pieces of luggage or objects are secured
to the tie-downs with unsuitable or dam-
aged straps, this can increase the risk of in-
jury during braking maneuvers or accidents.
— When transporting heavy objects, the vehi-
cle characteristics will change due to the
shift in the center of gravity, which increases
the risk of an accident. You may need to
adapt your driving style and speed to the
current conditions.
— The cargo net* is only strong enough to se-
cure light objects. Heavy objects are not ade-
quately secured. Attempting to secure heavy
objects increases the risk of injury.
— Never exceed the permitted axle and load
and vehicle weight > page 314.
— Never secure a child safety seat to the tie-
downs.
— Never leave your vehicle unattended, espe-
cially if the luggage compartment lid is
open. Children could enter the luggage com-
partment and close the luggage compart-
ment lid from the inside. This creates the
risk of fatal injury, since the children would
be locked in and may not be able to escape
by themselves.
— Do not allow children to play in or on the ve-
hicle. Close and lock the luggage compart-
ment lid as well as all other doors when you
leave
the vehicle.
— Never transport passengers in the luggage
compartment. Every passenger must be cor-


rectly secured with the safety belts in the
vehicle > page 70.
— Be careful when releasing the backrest and
folding
it forward. To reduce the risk of be-
ing pinched, pay attention and check when
folding backrests forward.
— The backrest must be securely latched so
objects cannot slide forward out of the lug-
gage compartment during sudden braking.
— The backrest must be latched securely to en-
sure that the safety belt is protecting the
center seating position.
— Always pull forward on the backrest to make
sure it is check if it is correctly locked in
place.


86
@) Note
—To reduce the risk of damage, move the rear
head restraints down > page 69 before fold-
ing the rear backrests forward.
— When folding the backrest forward, make
sure the outer safety belts are in the belt
guide recess so that they do not get pinched
in the backrest lock and damaged. Other ob-
jects should be removed from the rear
bench seat to protect the backrest from
damage.
— If you move the front seat back when the
rear seat backrest is folded forward, you
could damage the head restraints on the
rear seat.
— Make sure that the heating grid strips for
the rear window defogger are not damaged
by abrasive objects.
— Applies to: vehicles with manual luggage
compartment cover: Let the luggage com-
partment cover roll up slowly to reduce the
risk of damage.
— Applies to: vehicles with partition net: Let
the partition net roll up slowly to reduce the
risk of damage.
@) Tips
— The tire pressure must be adapted to the
load > page 266.
— You can purchase straps at specialty stores.

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Storage and convenience



Power luggage compartment cover
Applies to: vehicles with power luggage compartment cover

Fig. 71 Luggage compartment: removing the luggage
compartment cover
Observe the safety precautions > page 85.
If you open the luggage compartment lid, the
power luggage compartment cover will move in-
to position @ or Q).
> To attach the luggage compartment cover, pull
the cover out. Guide the cover past position @
and install it at position @).
> To remove the luggage compartment cover, de-
tach the cover and allow it to roll up.
> Pull the lever (@) firmly in the direction of the
arrow and remove the cover upward.
> To install the luggage compartment cover,
place the cover in the side trim panel mount on
the left side.
>» Press the cover down into the right mount until
it locks into place.

Increasing the size of the luggage
compartment
Applies to: vehicles with folding backrests

Fig. 72 Backrest: release lever, latching indicator with red
marking and lock*


Applies to: Avant/allroad:
Fig. 73 Luggage compartment: release lever*
The rear seat backrests can be folded forward ei-
ther separately or together.
Observe the safety precautions > page 85.
> Pull the release lever (@) or @) in the direction
of the arrow to fold the backrest forward.
> After the transport, fold the backrest up again
until it latches and the red marking (2) is no
longer visible.
When secured, the backrest can be locked using
the mechanical key in the lock @). This prevents
access to luggage compartment.
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Storage and convenience

Tie-downs
There are tie-downs in the luggage compartment
to secure pieces of luggage and objects.
> Use the tie-downs to secure the cargo.
Movable tie-downs
Applies to: vehicles with movable tie-downs
> To install the tie-down, press both buttons at
the sides @, insert the tie-down in the rail, and
lock it in place.
> To slide the tie-down, press both of the side
buttons @) and slide the tie-downs to the de-
sired position. The tie-downs must lock in
place.
> To remove the tie-down, press both buttons @)
at the sides and remove the tie-down from the
rail.
Cargo net
Applies to: vehicles with cargo net
Use the cargo net (2) to secure lighter objects in
the luggage compartment
> Fold the clip for the tie-downs upward.
> Attach the hooks for the cargo net to the tie-
downs.
Applies to: vehicles with a fixture set

Fig. 79 Luggage compartment: securing attachments
The telescoping rod @ and the securing strap 2)
help to prevent objects from sliding around in the
luggage compartment.
Observe the safety precautions > page 85.
The fixture set is located in the openings under
the cargo floor.

> Insert the movable tie-downs > page 89.
> Press the button @) on the retainers and place
them on the tie-downs. Make sure the brackets
are locked into place.
> Slide the tie-downs into the desired position.
> Press the button @) to tighten the securing
Store the movable tie-downs and the fixture
set in the openings under the cargo floor, if
necessary.
uble cargo floor
Applies to: vehicles with double cargo floor

Fig. 80 Luggage compartment: cargo floor set up
You can store dirty or wet objects under the cargo
floor on the middle floor panel.
Observe the safety precautions > page 85.
> To set up the cargo floor, lift it by the handle @
and insert the edge of the cargo floor into the
openings @).
> To remove the cargo floor, pull the entire cargo
floor out of the guides toward the rear of the
vehicle.
> To install the cargo floor, first insert it into the
guides and then slide it all the way in toward
the backrest.

ZX WARNING
Objects only up to a maximum of about 16.5
lbs (7.5 kg) may be transported on the middle
floor panel. The objects may only have a maxi-
mum height of 2/3 the height of the extend-
ed cargo floor. Objects must be secured ade-
quately.

89

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Warm and cold

Flammable refrigerant
Se
Make sure all components are dis-
posed of correctly and never install
q components in the vehicle that have
been removed from old vehicles or
taken from recycling.

Lubricant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant oil used in the vehicle’s A/C system. For the
refrigerant oil quantity, refer to the Technical Da-
ta > page 314.

To ensure secure and safe operation, the A/C
system must only be serviced by qualified
technicians and certified technicians (SAE
standard J2845).

— Never repair the A/C system evaporator with
components from old vehicles or from recy-
cling.
— New replacement evaporators for portable
A/C systems must be certified and labeled
as such, so that they comply with the SAE
standard J2842 HFO-1234yf and R744.
95

Driving

Driving
Starting the vehicle
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Fig. 84 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
> Press and hold the brake pedal.
> Press the [START ENGINE STOP] button. The
engine will start.



Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, the start-
ing procedure stops automatically after a short
time. If this is the case, repeat the starting pro-
cedure after approximately 30 seconds.
Stopping the engine
> Bring the vehicle to a full stop.
> Press the [START ENGINE STOP] button. The
engine will switch off.



Applies to: vehicles with steering lock: The steer-
ing is locked when you turn off the engine with
the selector lever in the “P” position and open
the driver's door. The steering lock helps prevent
vehicle theft.
Stopping the engine in an emergency
If necessary in an emergency, the engine can also
be stopped while driving using the emergency off
function*.


> Press the [START ENGINE STOP] button twice in
a row or press and hold it one time.

96
Switching on and off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:


> Press the [START ENGINE STOP] button without
pressing the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— The Start/Stop system must have stopped the
engine.
— You must have left the vehicle for longer than
30 seconds.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

Z\ WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious injuries.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 97.

@) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You
could damage the engine.

4K0012721BE
Driving

— If the engine has been under heavy load for
an extended period of time, heat builds up
in the engine compartment after the engine
is switched off and there is a risk of damag-
ing the engine. For this reason, let the en-
gine run at idle for approximately two mi-
nutes before shutting it off.
G) Tips
— Brief noises are normal when starting and
stopping the vehicle and are no cause for
concern.
—For up to 10 minutes after stopping the en-
gine, the radiator fan may turn on again au-
tomatically or it may continue to run, even if
the ignition is switched off.
— It may not be possible to start the vehicle in
extremely low temperatures.
— Power will be fully available once the engine
is at operating temperature.
WE Tel
= Engine start system: malfunction! Please
contact Service
Do not switch the ignition off because you may
not be able to switch it on again. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
EJ Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
2 Remote control key: key not detected. Is the
key
still in the vehicle?
The vehicle key was removed from the vehicle
while the engine is running. If the vehicle key is
no longer in the vehicle, you cannot switch the ig-
nition on or start the engine once you stop it. You
also cannot lock the vehicle from the outside.
Remote control key: hold back of key
against the designated area. See owner's man-
ual
The battery in the vehicle key may be drained or
there may be a malfunction. To start the vehicle,
you must also hold the vehicle key against the lo-
cation shown ?) > page 96, fig. 84.
If the malfunction remains, drive immediately to
an authorized Audi dealer or authorized Audi
Service Facility to have the malfunction correct-
ed.
When driving
Starting to drive, stopping, and parking
Starting from a stop
> Press and hold the brake pedal.
> Start the engine.
> Select a gear.
> Release the parking brake.
> Release the brake pedal. The vehicle may roll.
> Press the accelerator pedal to accelerate.
Securing the vehicle against rolling
Secure your vehicle to prevent it from rolling be-
fore exiting the vehicle.
> Set the parking brake.
> Select the “P” selector lever position.
> If parking on a steep road, turn the steering
wheel so that your vehicle will roll against the
curb in case it should start to move.
If one of these measures is not possible, for ex-
ample because there is no vehicle power, you
must secure your vehicle against rolling using ad-
ditional measures.
> Only park the vehicle on a level surface.
> Use suitable objects to block the front and rear
wheels.
Set the parking brake before selecting the “P” se-
lector lever position. This prevents too much
stress from being placed on the locking mecha-
nism when parking on a steep surface.

ZA WARNING
— Always set the parking brake when leaving
your vehicle, even if for a short period of >

97

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Driving

—To select the nearest gear, move the selector
lever forward or back until you feel the first
pressure point.
—To skip a gear (for example, move from “D” to
“R”), move the selector lever past the pressure
point in the desired direction.
— The label next to the selector lever for the se-
lected gear will light up.
“N” (Neutral) gear
In the “N” gear, power is not transmitted to the
driving wheels. Use the “N” gear in a car wash
(with conveyor belts), for example.
If you unintentionally select “N” while driving
(faster than 1 mph (2 km/h)), you can also shift
back to “D” without pressing the brake pedal.
For safety reasons, the vehicle cannot be locked
when the transmission is in the "N” gear.
“p” (Park) gear
Requirement: the ignition must be switched on.
The vehicle is secured from rolling away by the
parking lock when in the “P” gear.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the “P” button (2) on the selector Lever.
— The “P” next to the selector lever will light up.
“P” engages automatically if you switch the en-
gine off while the “D” or “R” gear is selected. If
you switch the engine off in “N”, “P” will engage
automatically after approximately 30 minutes.
Applies to: vehicles with S tronic transmission: If
you want to shift from “P” to “D” or “R”, the en-
gine must be running.
Applies to: vehicles with tiptronic transmission:
If you want to switch to another gear from “P”,
the engine must be running.
If you cannot shift out of “P”, for example be-
cause the vehicle has no power, you may need to
use the emergency release for the parking lock
=> page 101.
Selecting the driving program
Various driving programs can be selected when in
the “D” gear. The programs influence when the
transmission shifts and how the accelerator ped-
al responds.
The selected driving program is displayed in the
instrument cluster.
—D (Drive): normal driving mode
— S (Sport): sporty driving mode
If you select the dynamic mode in Audi drive se-
lect*, the “S” driving program will be activated.
When the ignition is switched off, the driving pro-
gram may be reset to “D”.
To switch between the current driving program
and “S”, push the selector lever toward the rear.

Z\ WARNING
— Before you start driving, check if the label
for the desired selector lever position next
to the selector lever is lit up.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 97.
— Power is still transmitted to the wheels
when the engine is running at idle. To pre-
vent the vehicle from “creeping”, you must
keep your foot on the brake in all selector
lever positions (except "P" and "N") when
the engine is running.
— To reduce the risk of an accident, do not
press the accelerator pedal when changing
gears if the vehicle is stationary and the en-
gine is running.
— Never select the “R" or "P” gears while driv-
ing. Doing so could cause an accident.
— The vehicle can roll even if the ignition is
switched off.
G@) Tips
If you shift between “D” and “R” within one
second, you do not need to press the brake
pedal. This makes it possible to “rock” if it is
stuck, for example.

99

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Driving


AN WARNING
The driving wheels could spin and the vehicle
could swerve on slick or slippery road surfaces
when using kick-down, which increases the
risk of an accident.
Launch Control
Applies to: vehicles with S tronic transmission and Launch
Control

Launch Control provides the best possible accel-
eration when starting from a stop.
Requirements
— The engine must be at operating temperature.
—The steering wheel must not be turned.
— Start/Stop system* must be deactivated
=> page 104.
— ESC must be limited > page 117.
— Driving program “S” > page 99 or the dynamic
Audi drive select* mode must be selected
> page 112.
Using Launch Control
— Press the brake pedal with your left foot and
hold it all the way down for at least one second.
— With the brake pedal pressed, press the accel-
erator pedal all the way down with your right
foot at the same time.
— Once the engine reaches a constant speed, re-
move your foot from the brake pedal.
Once the vehicle has started moving, reactivate
the ESC so that it is fully functional.

XN WARNING
Only use Launch Control when road and traffic
conditions allow it and other road users will
not be endangered or impacted by your driv-
ing and the vehicle's acceleration. The driving
wheels could spin and the vehicle could
swerve, especially on slick or slippery road
surfaces, which increases the risk of an acci-
dent.


CG) Note
When accelerating using Launch Control, all
vehicle components are subject to heavy
loads. This can result in increased wear.
@ Tips
After accelerating using the Launch Control,
the temperature of some vehicle components
may increase greatly. If that happens, the
function will not be available for a few mi-
nutes to reduce the risk of damage. After a
cool-down period, Launch Control will be
available again.
Parking lock emergency release


Fig. 88 Center console: releasing the parking lock using
the emergency release
The emergency release is located in the front cup
holder under a cover. Read and follow the impor-
tant instructions about towing > page 295.
Releasing the parking lock using the
emergency release
> Secure the vehicle against rolling > page 97.
> Remove the rubber mat.
> Pry the cover off the opening using the screw-
driver from the vehicle tool kit.
> Insert the socket wrench from the vehicle tool
kit in the opening so that the handle points to-
ward the front passenger's side.
> Turn the socket wrench clockwise (@) until it
stops and press it downward @) until it locks in-
to place.
» Leave the socket wrench inserted.
101