2009 AUDI A4 CABRIOLET Brake

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
and is more difficult to stop. Overloading can not only lead to loss
of vehic le contro l, but can also damage important parts of the
vehic le and can lead to sudden tire failure, including a blowout and
sudden deflation that can cause the vehicle to crash .
Your safety and that of your passengers also depends on making sure that load limits are not exceeded . Vehicle load includes every ­
body and everything in and on the veh icle . These load lim its are
technically referred to as the vehicle's
G ross Vehicle Weight R ating
("GVWR").
The "GVWR" includes the weight of the basic vehic le, all factory
installed accessories, a ful l tank of fuel, oil, coolant and other fluids
p lus maximum load. The maximum load includes the number of
passengers that the vehicle is intended to carry ("seating capacity")
with an assumed we ight of 150 lbs (68 kg) for each passenger at a
designated seating position and the total weight of any luggage in
t he vehicle. If you tow a trai ler, the weight of the trailer hitch and the
tongue weight of the loaded trai ler must be included as part of the
vehic le load .
T he
G ros s Axle Weight Rating ("GAWR") is the maximum load that
can be applied at each of the vehicle's two axles .
The Gross Vehicle Weight Rat ing and the Gross Axle Weight Rating
are listed on the safety compliance sticker labe l located either on
the d river's side B -pillar o r on t he inside of the f ue l fi ller flap. Yo ur
Audi has 4 seating positions, 2 in the front and 2 in the rear for total
seating capaci ty of 4. Each seating posi tion has a safety belt
=>
page 159, "Safety be lts" .
T he fact that there is an upper limit to your vehicle's Gross Vehicle
Weight Rating means that the total weight of whatever is being carried in the vehicle (including the weight of a trailer hitch and the
tongue weigh t of the loaded trailer) is lim ite d. The more passengers
in the vehicle or passengers who are heavier than the standard
weights assumed mean that less weight can be carried as luggage.
The tire pressure labe l on your Audi also lists the maximum
combined weight of a ll of the occupants and luggage or othe r cargo that the vehicle can carry
. For the location of the label=>
page 271,
f ig. 207 .
& WARNING
Overloading a vehicle can cau se lo ss of vehicle control , a cra sh or
other a ccident , seriou s personal injury , and even de ath .
• Carrying more weight th an your vehi cle w as designed to ca rry
will prevent the vehi cle from handling properly and in cre ase the
ri sk of the lo ss of vehicle control.
• The brakes on a veh icle th at ha s been overloaded ma y not be
able to stop the vehicle within a safe distance .
• Tire s on a vehicle that has been overloaded can fail suddenly,
i ncluding a blowout and sudden defla tion , cau sin g los s of control
and a crash .
• Alwa ys make sure that the tot al l oad be ing tran sported -
including the weight of a trai ler hit ch and the tongue weight of a
loaded trailer -does not m ake the vehicle heavie r than the
v ehicle 's Gro ss Vehicle Weight Rat ing .•
Determining correct load limit
U se th e exa mple below to calculat e the
total weight of the passengers and luggage or other things that you plan to
tran sport so that you can make sure that
your vehi cle will n ot be ov erlo ad ed.
~

__________________________________________________ T_ ir_e _ s_ a_ n _ d_ w_ h_ e_ e_ls _ _____,ffllll
In correct wheel alignment
Inc orrect wheel alignment can cause excessive tire wea r, impairing
the saf ety of the vehicle . If tires s how excessive wear , have the
whee l alig nment chec ked by an autho rized A udi deale r or q ualif ied
workshop .
All Wheel Drive
Vehicles with quattro ® must always have tires of the same si ze ,
cons tructi on and tread type . For details see => page 218 .
& WARNING
Sudden tire failure can lead to loss of control, a crash and serious
personal injury!
• Never drive a vehicle when the tread on any tire is worn down
to the wear indi cators .
• E specially in wet and slick driving situations , a preferably large
profile depth of the tires is necessary , and an approximately
similar profile depth of the front and rear axle tire s.
• The diminished driving safety , caused by too small of a tire
profile , is negatively perceivable especially in handling , in danger
of hydroplaning when driving through deep puddles and ponds ,
when driving around curve s, and in braking behavior.
• Worn t ires are a safety hazard , they do not grip well on wet
roads and increase your risk of "hydroplaning " and loss of control.
• Always keep chemicals that can cause tire damage , such a s
grease , oil , gasoline and brake flu id away from tires.
• Tires age even if they are not being used and can fail suddenly ,
espe cially at high speeds . Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lowe r speeds.
• Never mount used tire s on your vehicle if you are not sure of
their "previous history ." Old u sed tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and los s of vehicle control. •
New tires and replacing tires and wheels
New tires and wheels ha ve to be bro ken in.
Fig. 211 Tire spe cification cod es on the sidewall of a tir e
No. Description
©
@
@
@
©
©
Passenger car tire (where applicable)
Nominal w id th of tire in mi llimeters
Ratio of height to width (aspect ratio)
Radia l
ii Rim diameter code
Load index an d sp eed ra ting
Vehic le care irechnical data

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
toring system* would not be able to monitor the tire pressure or
warn you if it is necessa ry.
• T he battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
r ecommend us ing facto ry insta lled va lve stem caps. Ask you r autho ­
rized Audi dealer to replace lost va lve stem caps.
T he installation of rep lacement tires with steel cord body p lies in
t he tire sidewall may cause mal functi on of the tir e pressure mo ni­
toring system , and is not recommended (cord material information
in mo lded o n th e ti re sid ewa ll) .
Always check your tire pressure monitoring system * indicator after
r eplacing one or mo re ti res on your veh ic le . I f the ti re p ress ure
m onito ring syste m* ind icator flashes, or is o n, your s ystem is not
wo rking properly . Your replacement t ire might be incompatible with
yo ur tir e pressure mon ito ring system* , o r so me compo nen t of th e
tire p ressure monitoring system * may be damaged .
& WARNING
• Using incorrect or unmatched tires and I or wheels or improper
tire and wheel combinations can lead to loss of control , collision
and serious personal injury .
• Always use t ires , rims and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinations that
have been specifically approved by the vehicle manufacturer.
• Tires age even if they are not being used and can fa il suddenly,
espe cially at high speeds . Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speed s.
• Never mount used tire s on your vehicle if you are not sure of
their "previous history ." Old used tire s may have been damaged
even though the damage cannot be seen that can lead to sudden
tire f ailure and loss of vehicle control.
& W ARNING (continued )
• All four wheels mu st be fitted with radial tires of the same type,
size (rolling circumference ) and the same tread pattern. Driv ing
with different tires redu ces vehicle h andling and can lead to a loss
of control.
• If the spare tire is not the same as the tires that are mounted
on the vehicle - for e xample with winter tire s - only u se the spare
tire for a short period of time and drive with extra care . Refit the
normal road wheel as soon as safely possible.
• Never drive faster than the maximum speed for which the tires
on your vehicle are rated because tires that are driven faster than
the ir rated speed can fail suddenly .
• Overloading tires cause heat build-up, sudden tire failure ,
including a blowout and sudden deflation and loss of control .
• Temperature grades apply to tires that are properly inflated and
not over or underinflated .
• For te chnical reasons it is not always possible to use wheels
from other vehicle s -in some cases not even wheels from the
same vehicle model.
• If you install wheel trim discs on the vehicle wheels, make sure
that the air flow to the brakes is not blocked. Redu ced airflow to
the brakes can them to overheat , increasing stopping distances
and causing a collision.
• Run flat tire s may only be used on vehicle s that were equipped
with them at the fa ctory . The vehicle must have a cha ssis designed
for run flat tires and a factory -installed tire pressure monitoring
s ystem that indicate s a loss of tire pressure . Incorre ct use of run
flat tires can lead to vehicle damage or accidents . Check with an
autho rized Audi dealer or t ire specialist to see if your vehicle can
be equipped with run flat tires .
If run flat tires are used , they mu st
be installed on all four wheels . Mixing tire types is not permitted. .,

IIIJIL_T~ ir~e =s~ a~n~ d~ w~ h ~e~e~ l~ s '.,_ ______________________________________________ _
Wheel bolts
Wheel bolts must always be tightened to the correct
torque .
The design of wheel bo lts is matched to the factory installed rims . If
different rims are fitted, the correct wheel bolts with the right length
and correctly shaped bolt heads must be used. This ensures that
whee ls are fitted securely and that the brake system functions
correctly .
I n certain circumstances, you may not use wheel bolts from a
different vehicle -even if it is the same model~ page 318.
& WARNING
Improperl y tightened or maintained wheel bolt s can be come loose
c au sing lo ss of control , a co llis ion and seriou s personal injur y.
• Alwa ys keep the wheel bolt s and the th reads in the wheel hubs
c lean so the wheel bolt s can turn ea sily and be properl y tightened.
• Never gre ase or oil the wheel bolt s and the thre ad s i n the wheel
hub s. They can become lo ose while drivin g if gre ased or oiled ,
e ven if tig hten ed to th e specifi ed torque .
• Onl y use wheel bo lt s th at bel ong to the rim being in sta lled.
• Nev er use differ ent wheel s bolt s on your vehicle.
• Alway s m aintai n the corre ct t ightenin g to rq ue for the whee l
bo lt s to r edu ce the ri sk of a whe el los s. If the tighten ing torque of
t h e w heel bolt s is too l ow, they c an loose n a nd com e out when th e
v ehicl e is mov ing . If th e tighte ning torque is t oo high, the whe el
b ol ts an d threads can be dam ag ed and the whee l can become
loo se .
0 Note
The specified torque for the wheel bolts is 90 ft lb (120 Nm) with a
tolerance of ± 7,4 ft lb(± 10 Nm). Torque whee l bolts diagonally.
After changing a wheel, the torque must be checked as soon as possible with a torque wrench
-preferably by an authorized Audi
dea ler or qua lified workshop .•
Low aspect ratio tires
Your Audi is fac tory-equipped with low aspect ratio tires. These tires
have been thorough ly tested and been selected specifically for your
model for their superb performance, road feel and hand ling under
a variety of driving conditions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these t ires is ind icated by a numera l of 55 or
l e ss in the tire's size designation . The numera l represents the ratio
of the tire's sidewa ll height in relat ion to its tread w idth expressed
in percentage. Conventiona l tires have a height/width ratio of 60 or
more .
T he perform ance of lo w-as pect-rati o tire s is part ic ul arl y s ensit ive to
improp er infla tion pr essure. It i s there fore important that low
a s pect ra tio tir es are inflated to the sp ec ified pre ssure an d th at th e
i nfl ation pre ssure is regularl y checked and m aintained . T ir e pres ­
s ure s should b e checked a t lea st once a month and alw ays before a
long trip~ page 274, "Checking tire pressure".
What you can d o to avoid tire a nd rim dama ge
Low aspect ratio tires can be damaged more easi ly by impact with
potho les, curbs, gull ies or ridges on the road, particularly if the tire
is underinflated.
In order to minimize the occurrence of impact damage to the tires
of your vehic le, we recommend that you observe the fo llowing
precautions:
• Always maintain recommended inflation pressures . Check your
tire pressure every 2,000 miles (3,000 km) and add air if necessary .
• Drive careful ly on roads with potholes, deep gullies or ridges.
The impact from driving through or over such obstacles can
damage your tires. Impact with a curb may also cause damage to
your tires . .,_

_____________________________________________ W_ h _a_t _ d_ o_ l _d _o _ n_o_ w_ ?_ . _ ..... 19111
•
& WARNING (continued)
pressure table - risk of accident! Use the highest tire pressure in
the table.
• Do not drive faster than 50 mph (80 km/h) - risk of accident!
• Avoid full-throttle acceleration, sharp braking, and fast
cornering - risk of accident!
• Never drive using more than one space-saving spare wheel -
risk of accident!
• Normal summer or winter tires must not be fitted on the space­
saving spare wheel rim. •
Wheel change
Before changing a wheel
Follow these points for your own and your passenger's
safety when replacing a wheel.
-After you experience a tire failure, pull the car well away
from moving traffic and try to reach level ground before
you stop => & .
- All passengers should leave the car and move to a safe
location (for instance, behind the guardrail)=>& .
- Apply the parking brake firmly=>&.
- Move selector lever to position Pon an automatic trans-
mission; put manual transmission in first gear =>& .
- If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the tool case and the spare tire=>
page 290 out of
the luggage compartment.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flasher on and use other warning devices to alert other motorists .
• Make sure that passengers wait in a safe place away from the
vehicle and well away from the roadway and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When one
front wheel is lifted off the ground, placing the Automatic Trans­
mission in "P" (Park), or engaging a gear in a manual transmission
will
not prevent the vehicle from moving .
• Before you change a wheel, be sure the ground is level and firm.
If necessary, use a sturdy board under the jack.
• After installing the spare wheel, make sure that you remount
the flat tire/wheel in its storage area properly and tighten the
knurled retaining screw securely. •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by -step and exactly in that order.
1. Remove the decorative wheel cover*. For more details
see also =>
page 294, "Decorative wheel covers" or
=>
page 295, "Wheels with cap-covered wheel bolts".
2. Loosen the wheel bolts=>
page 295.
3. Locate the proper mounting point for the jack and align
the jack below that point=>
page 296.
4. Lift the car with the jack=> page 296. _,..
Do-it-yourself service

_________________________________________________ F_ u_ s_ e_s _ a_n _ d_ b_ u_lb _ s ____ llll
[ i ] Tip s No . Equipm ent Amps
You are wel l adv ised to keep a supply of spare fuses in your vehic le.
15 Instrument c luster, Navigation system 10
Fuses with the proper ampere ratings are available at your Audi 16 Garage door opener 5
dea ler. •
17 Level , tire pressure control , park assist, 10 light/rain sensor
Fuse list Automatic headlig ht range control, left 5
Fuses which con be replaced. 19 Fog lights 15
Vacant
N o. Equipm ent Amps
21 Vacant
1 Air conditioner 10
22 Doors 15
2 Footwell illumination 5 23 Vacant
3 Heated washer jets 5 Central convenience electrical system 20
Radiator fan 5 25 Heater blower 30
5
Telephone, oil level sensor, multifunction 10 Rear window defogger 30 switch, rear heated seat, shift gate
Air conditioner (air quality sensor), air pressure
27 Socket for tra iler towing (controller) 30
6 5
sensor 28 Fuel pump 20
Electronic Stabil izat ion Program (ESP), bra ke 29 Vacant
7 light switch, clutch peda l switch, steering angle 10
sensor
30 Power top control un it 30
8 Telephone 5 31
Automatic transmission, mirror dimming, diag-15 nosis socket
9 Brake booster (vacuum pump) 15 Towing assembly 15
10
Automatic headl ight beam adjustment, auto -5 33 Cigarette
lighter 20 matic headlight range control, right
34 Electrical socket 20
11
Airbag control unit, front passenge r seat recog -10 nition USA (bladder mat) 35 Luggage compartment socket 20
Diagnosis socket 10 Windshield wiper system 30
13
Steering c olumn module 10
37 Pump for windshie ld an d head light washer* 30
14
Brake lights 10
system
• Do-it-yourself service

______________________________________________ E_ m_ e_r -=g :...e _ n_ c __a. y_ s_it _u_ a_ ti_o _ n_ s _ __,11111
& WARNING (continued)
• Before you check anything in the engine compartment, always
read and heed all WARNINGS~ page 242, "Engine compartment".
0 Note
• Applying a higher voltage booster battery will cause expensive
damage to sensitive electronic components, such as control units,
relays, radio, etc .
• There must be no electrical contact between the vehicles as
otherwise current could already start to flow as soon as the positive
(+) terminals are connected.
[ i] Tips
The discharged battery must be properly connected to the vehicle's
electrical system. •
Use of jumper cables
Make sure to connect the jumper cable clamps in exactly
the order described below!
Fig. 225 Jump·
starting with the
battery of another
vehicle : A -discharged
vehicle battery, B -
booster battery
Vehicle with discharged battery:
- Turn off lights and accessories, move lever of automatic
transmission to
N (Neutral) or P (Park) and set parking
brake.
Connect POSITIVE (+) to POSITIVE (+) (red)
1. Connect clamp of plus cable to positive(+) terminal G)
~ fig. 225 of discharged vehicle battery@.
2. Connect clamp on opposite end of cable to positive(+)
terminal
® of booster battery@.
Connect NEGATIVE (-) to NEGATIVE (-) (black)
3. Connect clamp of minus cable (black) to negative( -)
terminal
0 of booster battery@.
4. Connect clamp on opposite end of negative cable to the
negative( -) terminal © of the discharged vehicle battery
@.
- Check that all screw plugs on the battery cells are
screwed in firmly. If not, tighten plugs prior to
connecting clamp on negative battery terminal.
Starting the engine
- Start the engine of the vehicle with the booster battery.
Run the engine at a moderate speed.
- Start engine with discharged vehicle battery in the usual
manner.
- If the engine fails to start: do not keep the starter
cranking for longer than 10 seconds. Wait for about 30
seconds and then try again. .,,.
~ehicle care Do-it-yourse lf service Technical data

111!1.___E_ m __ e_r -=g :...e_ n_ c-=y _ s_ i_t _u _a _t_ i_o _n_ s _______________________________________________ _
-With en gine run ning, r em ove jum per ca bles from both
v ehi cle s in exact
reve rs e o rd er.
T he battery is ve nted t o th e outs ide to preve nt gases from enter ing
the vehicle interior.
M ake s ure t hat th e jum per cla m ps are well co nnecte d with th eir
metal parts in full contact with the battery t erminals .
& WARNING
To avoid serious personal injury and damage to the vehicle , heed
all warnings and instructions of the jumper cable manufacturer. If
in doubt , call for road service .
• Jumper cables must be long enough so that the vehicles do not
touch .
• When connecting jumper cables , make sure that they cannot
get caught in any moving parts in the engine compartment .
• Before you check anything in the engine compartment, always
read and heed all WARNINGS=>
page 242, "Engine compartment ".
0 Note
Improper hook -up of jumper cables can ruin the generator.
• Always connec t POSIT IVE( +) to POS ITIVE ( +J, and NEG ATIV E (- J to
N EGAT IVE(-) te rminal.
• C heck that a ll screw plugs on the battery cel ls are screwed in
firm ly . I f not, tighten plugs prior to connec ting cla m p on nega tive
battery te rminal.
• P lease no te tha t th e procedure fo r con nec ting a ju mp er ca ble as
described above app lies specifical ly to t he case of your vehicle
b eing j ump st arted. When yo u are g iv in g a jum p start to another
veh ic le, do
not conn ect the minus(-) ca ble to the m inus( -) te rmina l
on the discha rge d battery ©=>
page 305, fig. 225. In stead , secu rely
co nnect the m inus(-) cable to e ither a m ass ive metal compone nt
that is firmly bo lted to the engine bloc k or to the engine b lock itse lf. I
f th e battery that is b ein g charged does not vent to the outside,
escapi ng battery ga s cou ld ignit e a nd ex plod e!•
Emergency towing with commercial
tow truck
General hints
Yo ur A udi requires s pecial handl in g f or t owing.
The fol lowing information i s to be used by commercial tow truck
operators who know how to operat e their equ ipment safe ly.
• Never tow your Audi, towing will cause damage to the engine
and transmission.
• Never wrap the safety chains or winch cables around the brake
lines.
• To prevent unnecessary damage , your Audi must be transported
with a car carrier (flat bed truck ).
• To load the vehicle on to the flat bed , use the towing loop found
in the vehicle tools and attach to the front or rear anchorage
=> page 3 07 and => page 307.
& WARNING
A vehicle being towed is not safe for passengers. Never allow
anyone to ride in a vehicle being towed , for any reason. •