2009 AUDI A4 CABRIOLET ECU

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- Make sure that all lights and signals are operating
correctly.
- Make sure that the tire pressure is correct.
- Make sure that all windows are clean and afford good
visibility to the outside.
- Secure all luggage and other items carefully~
page 107.
-Make sure that nothing can interfere with the pedals.
- Adjust front seat, head restraint and mirrors correctly for
your height.
- Instruct passengers to adjust the head restraints
according to their height.
- Make sure to use the right child restraint correctly to
protect children~
page 190, "Child Safety".
- Sit properly in your seat and make sure that your passen­
gers do the same
~ page 92, "General recommenda­
t ions" .
- Fasten your safety belt and wear it properly. Also instruct
your passengers to fasten their safety belts properly
~ page 159. •
What impairs driving safety?
Safe driving is directly related to the condition of the
vehicle, the driver as well as the driver's ability to concen­
trate on the road without being distracted.
The driver is responsible for the safety of the vehicle and all
of its occupants. If your ability to drive is impaired, safety
risks for everybody in the vehicle increase and you also
Controls and equip­
ment Safety first Vehicle operation
become a
hazard to everyone else on the road ~& .There ­
fore:
- Do not let yourself be distracted by passengers or by
using a cellular telephone.
- NEVER drive when your driving ability is impaired (by
medications, alcohol, drugs, etc.I.
- Observe all traffic laws, rules of the road and speed limits
and plain common sense.
- ALWAYS adjust your speed to road, traffic and weather
conditions.
- Take frequent breaks on long trips. Do not drive for more
than two hours at a stretch.
- Do NOT drive when you are tired, under pressure or when
you are stressed.
& WARNING
Impaired driving safety increases the risk of serious personal
injury and death whenever a vehicle is being used. •
Vehicle care Do-it-yourself service Technical data

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& WARNING (continued)
• Passengers must always sit in an upright position and never
lean against or place any part of their body too close to the area
where the airbags are located.
• Passengers who are unbelted, out of position or too close to the
airbag can be seriously injured by an airbag as it unfolds with
great force in the blink of an eye.
• Always make sure that there are at least 10 inches (25 cm)
between the front passenger's breastbone and the instrument
panel.
• Always make sure that there are at least 4 inches (10 cm)
between the front passenger's knees and the lower part of the
instrument panel.
• Each passenger must always sit on a seat of their own and
properly fasten and wear the safety belt belonging to that seat.
• Before driving, always adjust the front passenger seat and
head restraint properly.
• Always keep your feet on the floor in front of the seat. Never
rest them on the seat, instrument panel, out of the window, etc .
The airbag system and safety belt will not be able to protect you properly and can even increase the risk of injury in a crash.
• Never drive with the backrest reclined or tilted far back! The
farther the backrests are tilted back, the greater the risk of injury
due to incorrect positioning of the safety belt and improper
seating position.
• Children must always ride in child seats~
page 190. Special
precautions apply when installing a child seat on the front
passenger seat~
page 168. •
Proper seating positions for passengers in
rear seats
Rear seat passengers must sit upright with both feet on
the floor consistent with their physical size and be prop­
erly restrained whenever the vehicle is in use.
To reduce the risk of injury caused by an incorrect seating
position in the event of a sudden braking maneuver or an
accident, your passengers on the rear bench seat must
always observe the follow ing :
- Make sure that the seatback of the front seats are securely latched in the upright position~
page 99.
Keep both feet flat in the footwell in front of the rear seat .
Fasten and wear safety belts properly ~
page 163.
-Make sure that children are always properly restrained in
a child restraint that is appropriate for their size and age
~ page 190.
& WARNING
Passengers who are improperly seated on the rear seat can be
seriously injured in a crash.
• Each passenger must always sit on a seat of their own and
properly fasten and wear the safety belt belonging to that seat.
• Safety belts only offer maximum protection when the seatback
is securely latched in the upright position and the safety belts are
properly positioned on the body . By not sitting upright, a rear seat
passenger increases the risk of personal injury from improperly
positioned safety belts! •

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Only use floor mats that leave the pedal area free and can be
secured with floor mat fasteners.
If a brake circuit fails, increased brake pedal travel is required to
bring the vehicle to a full stop.
& WARNING
Pedals that cannot move freely can cause loss of vehicle control
and increase the risk of serious injury.
• Never place any objects in the driver's footwell. An object could
get into the pedal area and interfere with pedal function . In case
of sudden braking or an accident, you would not be able to brake
or accelerate!
• Always make sure that nothing can fall or move into the
driver's footwell. •
Floor mats on the driver side
Always use floor mats that can be securely attached to
the floor mat fasteners and do not interfere with the free
movement of the pedals.
-Make sure that the floor mats are properly secured and
cannot move and interfere with the pedals~&.
Use only floor mats that leave the pedal area unobstructed and that
are firmly secured so that they cannot slip out of position. You can
obtain suitable floor mats from your authorized Audi Dealer.
Floor mat fasteners are installed in your Audi.
Floor mats used in your vehicle must be attached to these fasteners.
Properly securing the floor mats will prevent them from sliding into
positions that could interfere with the pedals or impair safe opera ­
tion of your vehicle in other ways .
Controls and equip­
ment Safety first Vehicle operation
& WARNING
Pedals that cannot move freely can result in a loss of vehicle
control and increase the risk of serious personal injury.
•
Always make sure that floor mats are properly secured .
• Never place or install floor mats or other floor coverings in the
vehicle that cannot be properly secured in place to prevent them
from slipping and interfering with the pedals or the ability to control the vehicle.
• Never place or install floor mats or other floor coverings on top
of already installed floor mats. Additional floor mats and other
coverings will reduce the size of the pedal area and interfere with
the pedals.
• Always properly reinstall and secure floor mats that have been
taken out for cleaning .
• Always make sure that objects cannot fall into the driver foot­
well while the vehicle is moving. Objects can become trapped
under the brake pedal and accelerator pedal causing a loss of
vehicle control . •
Stowing luggage
Loading the luggage compartment
All luggage and other objects must be properly stowed
and secured in the luggage compartment.
Loose items in the luggage compartment can shift
suddenly, changing vehicle handling characteristics. Loose
items can also increase the risk of serious personal injury in
a sudden vehicle maneuver or in a collision.
- Distribute the load evenly in the luggage compartment . ..,
Vehicle care Do-it-yourself service Technical data

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- Alw ay s place an d prop erly secure h eavy items in the
luggage com partm en t as fa r fo rwa rd as possi ble.
& WARNING
Improperly stored luggage or other items can fly through the
vehicle causing ser ious personal injury in the event of hard br aking
or an a ccident. To help reduce the risk of serious personal injury :
• Always put objects , for e xample , luggage or other heavy items
in the luggage compartment.
& WARNING
Heavy loads will influence the way your vehicle handles. To help
reduce the risk of a loss of control leading to serious personal
injury :
• Always keep in mind when transporting heavy objects , that a
change in the center of gravity can also cause changes in vehicle
handling:
-Always distribute the load as e venly as possible .
- Place heavy objects as far forward in the luggage compart -
ment as possible .
• Never exceed the Gross Axle Weight Rating or the Gros s
Vehicle Weight Rating specified on the safety compliance sti cker
on the left door jamb. Exceeding permis sible weight standards
c an cau se the veh icle to slide and handle differently .
• Please ob serve information on safe driving:::::,
page 146.
& WARNING
To help prevent poisonous exhaust gas from being dra wn into the
vehicle , always keep the rear l id clo sed while driv ing.
• Ne ver t ransport obje cts larger than those fitting completely
into the luggage area because the rear lid cannot be fully closed.
& W ARNING (continued )
• If you absolutely must drive with the rear lid open, observe the
following notes to reduce the risk of poisoning :
- Close all windows ,
- Close the power top ,
- Open all air outlets in the instrument panel ,
- Switch off the air recirculation ,
- Set the fre sh air fan to the highest speed .
& WARNING
Always make sure that the doors, all windows , the power roof and
the rear lid are securely closed and locked to reduce the ri sk of
injury when the vehicle is not being used.
• After closing the rear lid , always make sure that it i s properly
closed and locked .
• Never leave your vehicle unattended especially with the rear lid
left open. A child could crawl into the vehicle through the luggage
compartment and close the rear lid becoming trapped and unable
to get out . Being trapped in a vehi cle can le ad to serious personal
injury.
• Never let ch ildren play in or around the vehicle.
• Never let pa ssengers ride in the luggage compartment . Vehicle
occupants must always be properly restrained in one of the
vehicle's seating po sition s.
[ i ] Tips
• Air circu lat io n helps to reduce window fogg in g when the power
top is c losed. Stale air escapes to the outside through slots in the
t rim pa nels o n both sides of the luggage co mpartment. Make sure
that these s lots are not b locked. _.

To provide extra safety, the rollover protection system is also acti­
vated in head -on, side and rear -end collisions if the impact is severe
enough. •
Lowering the rollover protection bars after
deployment
Lower the rollover protection bars only if the bars were
automatically deployed without the vehicle actually
colliding or overturning.
0
9 :,:
"' m
~
"' 0 ±
"' m
Fig . 159 Extended roll­
over bar with release
lever.
Fig. 160 Rollover bar
with the power top
base frame raised
straight up
If the rollover protection system deployed the rollover bars
without the car actually overturning or colliding, you can
lower the roll bars yourself without having to use a special
Safety first
Driving Safely
tool. Once it has been lowered, the rollover protection
system is once again fully operational. If you do not feel
comfortable doing this sort of work, have it done by a
professional mechanic.
With the power top open
- Push the lever=> fig. 159 downward to the left in the
direction indicated by the arrow and keep holding it
down.
- Now simultaneously push the rollover bar down.
Release the lever an inch or two before you push it back
in completely.
- Then press the rollover bar all the way down until you
hear it engage.
- Check to make sure the rollover bar is securely engaged
before you release your grip on the bar.
- Close the cover@=> fig. 160.
- Perform the same procedure on the second rollover bar.
With the power top closed
-Turn on the ignition .
- Press the power top switch to raise the base frame with
the rear window until it stands straight up=> fig. 160.
- Press the lever=> fig. 159 down and to the left in the
direction indicated by the arrow and keep holding it
down.
- Now simultaneously push the rollover bar down.
- Release the lever an inch or two before you push it back
in completely. .._.
~ehicle care irechnical data

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- Then press the rollover bar all the way down until you
hear it engage.
Check to make sure the rollover bar is securely engaged
before you release your grip on the bar.
Close the cover @~ page
157, fig. 160 .
- Perform the same procedure on the second rollover bar.
- You can now open and close the power top again.
& WARNING
• If there is a problem in the rollover protection system, the
system must be checked by a professional mechanic as soon as
possible.
If this is not done, there is a risk that the rollover protec­
tion system may not be activated in the event of an accident.
• No modifications of rollover protection system components
are permitted.
• Work on the rollover protection system must only be done by a
professional mechanic . Improperly performed work can cause the
system to fail or release unintentionally, possibly causing an
injury!
• Always have your vehicle serviced whenever the service
interval display indicates that it is time for service . This will ensure
that the system will operate properly over the long term. The roll­ over protection system must be checked by a professional
mechanic every two years or sooner. •

& WARNING (continued)
• Never let any person ride with feet on the instrument panel or
sticking out the window or on the seat.
• Never remove a safety belt while the vehicle is moving. Doing
so will increase your risk of being injured or killed.
• Never wear belts twisted .
• Never wear belts over rigid or breakable objects in or on your
clothing, such as eye glasses, pens, keys , etc. , as these may cause
injury .
• Never wear the shoulder part of the belt under your arm or
otherwise out of position .
• Several layers of heavy clothing may interfere with correct posi ­
tioning of belts and reduce their effectiveness.
• Always keep belt buckles free of anything that may prevent the
buckle from latching securely.
• Never use comfort clips or devices that create slack in the
shoulder belt. However , special clips may be required for the
correct use of some child restraint systems.
• Never allow safety belts to become damaged by being caught
in door or seat hardware .
• Torn or frayed safety belts can tear and damaged belt hardware
can break in an accident . Inspect belts regularly. If webbing, bind­
ings, buckles , or retractors are damaged , have belts replaced by an
authorized Audi dealer or qualified workshop.
• Safety belts that have been worn and loaded in an accident
must be replaced with the correct replacement safety belt by an
authorized Audi dealer or qualified workshop. Replacement may
be necessary even if damage cannot be clearly seen. Anchorages
that were loaded must also be inspected.
• Never remove, modify, disassemble, or try to repair the safety
belts yourself .
Safety first
Safety belts
& WARNING (continued)
• Always keep the belts clean. Dirty belts may not work properly
and can impair the function of the inertia reel
~ page 242, "Safety
belts" .•
Safety belts
Fastening safety belts
Seat first -everybody buckle up!
Fig. 167 Belt buckle
and tongue on the
driver 's seat
To provide maximum protection, safety belts must always
be positioned correctly on the wearer's body .
Adjust the front seat and head restraint properly
=> page 92, "General recommendations".
Hold the belt by the tongue and pull it evenly across the
chest and pelvis=>& .
Inse rt the tongue into the correct buckle of your seat
until you hear it latch securely=> fig. 167.
Pull on the belt to make sure that it is securely latched in
the buckle. ..,
~ehicle care irechnical data

-Safety belts ___ .:,__ _____________________________________ _
Automatic safety belt retractors
Every safety belt is equipped with an automatic belt retractor on the
shoulder bel t. This featu re locks the bel t when the belt is pulled out
fast, during hard braking and in an accident. The belt may also lock
when you drive up or down a steep hill or through a sharp curve. During normal driving the bel t lets you move freely.
Safety belt pretensioners
The safety belts are equipped with a belt pretension er that helps to
tighten the safety belt and remove slack when the pretensioner is
activated. The function of the pretensioner is monitored by a
warning light:::::, page
20, "Airbag system @;".
Switchable locking feature
Every safe ty belt except the one on the driver seat is equipped with
a switchable locking feature that must be used when the safety belt
is used to attach a child seat . Be sure to read the important informa­
tion about this feature:::::, page
200.
& WARNING
Improperly positioned safety belts can cause serious injury in an
accident :::::,
page 164, "Safety belt position" .
• Safety belts offer optimum protection only when the seat back
is upright and belts are properly positioned on the body.
• Never attach the safety belt to the buckle for another seat.
Attaching the belt to the wrong buckle will reduce safety belt
effectiveness and can cause serious personal injury.
• A passenger who is not properly restrained can be seriously
injured by the safety belt itself when it moves from the stronger
parts of the body into critical areas like the abdomen.
• Always lock the convertible locking retractor when you are
securing a child seat in the vehicle :::::,
page 202. •
Safety belt position
Correct belt position is the key to getting maximum
protection from safety belts.
Fig . 168 Head restraint
and safety belt posi­
tion as seen from the
side
Use the height adjustmen t to change the position of the shoulder
straps of the front seat belts.
in. WARNING
Improperly positioned safety belts can cause serious personal
injury in an accident .
• The shoulder belt portion of the safety belt must be positioned
over the middle of the occupant's shoulder and never across the
neck or throat.
• The safety belt must lie flat and snug on the occupant's upper
body
:::::> fig. 168. Pull on the belt to tighten if necessary.
• The lap belt portion of the safety belt must be positioned as
low as possible across pelvis and never over the abdomen. Make
sure the belt lies flat and snug :::::, fig. 168. Pull on the belt to
tighten if necessary.
• A loose-fitting safety belt can cause serious injuries by shifting
its position on your body from the strong bones to more vulner-
able, soft tissue and cause serious injury. ..,.