2011 AUDI A5 COUPE technical data

Intelligent technology
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Repl acing wheel s/tires
Vehicles wi th all wheel drive must a lways have tires of t he same size.
Also avoid tires with different tread depths. For details see page
=> page 303, "New tires and rep lacing tires and wheels".
Off -Road driving?
Your Audi does not have enough ground clearance to be used as an
off-road veh icle . It is therefore best to avo id ro ugh tracks and uneven
terrain as m uch as possible . Also refer to=>
page 247.
& WARNING
Alway s adju st your driving to road and traffi c conditi ons. Do not
let the ex tra safety afforded by all wheel dr ive tempt you into
taking extra risks.
• Although the all wheel dri ve is ve ry effecti ve, always
remember that braking capacity is limited by tire traction. You
should therefore not dri ve at ex cessive speeds on icy or slippery
road surfaces .
• On wet road surfaces , be careful not to drive too fast because
the front wheel s could begin to slide on top of the water (aqua­
planing ). If th is should occur, you will have no warning from a
sudden increase in engine speed as with a front-wheel drive
vehicle. Always drive at speeds which are suited to the road cond i­
tions -ris k of crash.
n
Controls and equip­
ment Safety first Vehicle operation
Energy management
Starting ability is optimized
E
nergy management contr ols th e distributi on of elec­
tri cal energy and thus optimizes the availabili ty of elec­
tri cal energ y for star ting the engin e.
If a vehicle with a conventiona l energy system is not dr iven for a long
per io d of time, t he battery is di sch arged by idling cur rent consume rs
(e .g. immob il izer) . In certain c ircumstances it can result in there
being insuffic ien t energy av a ilab le to start t he eng ine .
Inte lligent energy management in your ve hicle hand les the d istribu ­
tion of e lectrical energy . Starting ability is ma rkedly improved and
the l if e of the battery is extended.
Bas ically, energy management consists of
battery d iagnos is, idling
current management
a nd dynamic energy management .
Battery diagnosis
Battery d iagnosis con tinuously dete rmines the st ate o f the batte ry.
Sensors determ ine battery vo ltage, battery current and battery
t empe ra ture. This de termine s the cur rent sta te of cha rge and the
power of the battery.
Idling current management
I d ling current management reduces energy consumption wh ile the
vehicle is s tanding. W ith t he igni tion swi tched off, it con trols the
energy supply to the var io us electrical components. Data from
b att ery diag nosis is considered .
Depend ing on the battery 's state of charge, individual consumers a re
gradually t urned off to p revent excessive discha rge of the battery and
thus main tain start ing capab ility.
Dynamic energy management
Whi le the vehicle is being dr iven , dynamic energy management
dis tributes the energy generated a cco rding to the needs o f th e in di-
Vehicle care Do-it-yourself service Technical data

Intelligent technology
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Driver notification in the instrument
cluster display
If battery power drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
with the following driver message:
Lo w b attery charge : batt ery will be charged while driving
Th is notification rem inds you that the starting capability of the
engine may be limited . As soon as you start driving again, the batte ry
w ill be recharged and the notification w ill go out.
Dri ver notification appears and goes out again
If th is dr iver notification appears after the ignition is turned o n or
while driving a nd it goes out again afte r a w hile, the battery has been
adequate ly recharged.
Driver no tification appears and does not go out
again
If th is dr iver notifica tion appears afte r the ignition is turned o n or
while driving and does not go out again, the battery 's state of charge
is not in the optimal range . Starting ability is restricted. Have the
battery checked as soon as poss ible by an au thor ized Aud i dea le r o r
qualified workshop. •
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

____________________________________________ D_ r_ i_ v _i_,ng and environment
New brake pads have to be "b urn ished in" before they have opt imal
grab ~& -
Dur ing the break-in period, you sho uld avoid putti ng severe loads on
the brakes. Severe loads include, for example, sud den ha rd brak ing,
i n part icula r a t very high s peed s or, for e xam ple, on moun tain passes.
& WARNING
New brake pads don't have the best stopping power and must be
" broken-in " during the initial 100 to 150 miles (150 to 200 kilo­
meters ) of normal city driving . You can compensate for this by
p ressing the brake pedal more firmly . This also applies later when
new pad s are installed .•
Avoid damaging the vehicle
Whe n yo u are d riving on poor ro ad s, or ove r curbs, steep r amps, etc.,
ma ke ce rtain that low -lying parts such as spoilers and exhaust system
p arts do not bo ttom out and ge t damage d.
Th is is espec ia lly true for veh icles with low-slung chass is (sports
chassis)* and fully loaded vehicles .
a
Driving through water on roads
Note the fo llowing to avoid vehicle damage w hen drivi ng thro ugh
water, fo r examp le on flooded roa ds:
• The wate r must not be any h igher than the bottom of the vehicle
b ody .
• Do not dr ive faster tha n walk ing spee d.
Controls and equip­
ment Safety first Vehicle operation
& WARNING
After driving through water, mud
, slush, etc ., the brakes may be
slow to take effect because of wet brake rotors and pads. Dry the
brakes first by braking carefully to restore the full braking effect .
0 Note
Vehicle components such as the engin e, tra nsmission, sus pension or
elect rical system can be severe ly damaged by driv in g thro ugh water .
[ i ] Tips
• Check the depth of t he wate r before driving throug h it.
• Do not stop the vehicle, drive in reverse or switch the e ng ine off
w hen driving throug h wate r.
• Keep in m ind that o ncoming vehicles may c reate waves that raise
t he water leve l and make it too deep fo r yo ur vehicle to d rive throug h
safely.
• Avo id drivi ng t hroug h sa lt w at er bec ause it can cause cor rosio n.
Catalytic converter
It is very imp ortant that your emission contr ol syst em
(ca ta lytic convert er) is functioning pro p erly to ensur e
t h at your vehic le is runnin g in an environment ally s oun d
man ner .
- Always use lead -f re e gasoli ne~ p age 269 , "Fuel sup ply" .
- Never r un th e t ank down a ll the way to em pt y.
- Neve r pu t too muc h mo to r oil i n y our eng ine ~
page 279,
"Add ing eng ine oil
'l!:r." .
- Never try to p ush- or tow-start your veh icle.
Vehicle care Do-it-yourself service Technical data

Driving and environment
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depending upon vehicle load and speed, road and weather conditions,
trip length, etc. •
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they are accelerating .
-Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are accelerating. If you antici­
pate what is going to happen next, you will need to brake less and,
thus, accelerate less. Let the vehicle coast whenever possible - for
example when you see that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and improves your
mileage.
- Try and keep well below your car's maximum speed.
Accelerating gently reduces fuel consumption, engine wear, and does
not disturb the environment .
Fuel consumption, exhaust emissions and eng ine noise increase
disproportionately at high speeds . If you drive at approximately three
quarters of top speed, fuel consumption will be reduced by one half.
Never drive faster than the posted speed limit and weather condi­
tions permit. •
Reducin~ unnecessary idling
Even when your car is just idling it burns up fuel.
-Shut the engine off when you are not driving the vehic le .
- Do not warm up the vehicle by letting the engine run at
idle.
Controls and equip­ ment Safety first Vehicle operation It makes sense to shut off the engine in traffic jams, when waiting for
trains to pass at railroad crossings, or at traffic lights that have long
waits on red. Turning the engine off for just 30 -40 seconds saves
more fuel than is burned starting the engine again .
It takes a long t ime for the engine to warm up fully when it is running
at idle. However, wear and noxious emissions are especia lly high
when the eng ine is warming up. So you should dr ive away as soon as
you start the engine and avoid running at high rpms while the engine
is still warming up.
0 Note
Do not leave engine idling unattended after starting . If warning
lights should come on to indicate improper operation, they would go
unheeded. Extended idling also produces heat, which could result in
overheat ing or other damage to the vehicle or other property. •
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel .
- Have your vehic le serviced at regular intervals .
By having your vehicle regularly serviced by an authorized Audi dealer
helps to ensure that it runs properly and economically . The condit ion
of your vehicle not on ly affects its safety and ability to hold its val ue,
it also affects fuel consumption.
Check your oil each time you fill your tank.
Th e amount of oil used is related to engine load and speed.
It is normal for the oil consumption of a new engine to reach its
lowest value after a certain mileage has been driven.
You must dr ive your veh icle about 3,000 miles (5,000 kilometers)
before you can properly assess oi l consumption .
Thi s also applies to fuel consumption and eng ine output.
Vehicle care Do-it-yourself service Technical data

Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor ­
tation.
If yo u plan to tow a t rai ler, p lease rem emb er that the add itiona l load
wi ll affect durab ility, economy and performance.
T railer tow ing not on ly p laces mo re s tress on the vehicle, it a lso calls
for more concentrat ion from the driver.
For this reason, a lways follow the ope rating and dr iv ing instr uctions
prov ided and use common sense .
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the gross trailer weig ht.
Th e hitch mus t be suitable for yo ur vehicle a nd tra ile r and mus t be
mounted secure ly on the vehicle's chassis at a
technically sound l oca­
t ion. Use only a trailer hitch wi th a remov ab le b all m ount. Alw ays
check w ith the tra iler hitch manufacturer to make sure that you are
using t he cor re ct hi tch.
Do not use a bumper hitch.
The h itch must be installed in such a way t hat it does not interfere
w ith the impa ct-absorbing b umper system. No mod ifi cat ions sho uld
be made to the vehicle exhaust and brake systems. From time to
ti me, chec k tha t all hitc h mou ntin g bol ts rem ain secure ly f aste n ed.
When you a re not tow ing a tra iler, remove the tra iler hitch ba ll
mount. This prevents the hitc h from caus ing damage should yo ur
vehicle be struck from behind=> &.
Controls and equip­
ment Safety first Vehicle operation
Trailer brakes
If your trailer is eq
uipped with a braking system, check to be s ure that
i t confo rm s to all regula tions.
The tra iler hydraulic brake system must not be directly connected to
the vehicle's hydraulic brake system=>& .
Safety chains
Alw ays use safety chains be twee n your vehicle and the trai ler.
Trailer lights
Tr ailer l ights m ust meet all reg ulat io ns. Be su re to check with your
author ized Audi deale r for correct wir ing, switches, and re lays.
Mirrors
If you are unab le to see the traffic behind you us ing the regular
outside m irro rs, then you
must install extended m irro rs. It is impor­
tant that yo u
always have clear vision to the rear.
& WARNING
• If a trailer has electrical b rake s please note that these brakes
are not activated by the factory-fitted control unit -ri sk of acci­
dent!
• After removing the trailer hitch , do not store it in your vehicle.
In case of sudden braking, the hitch could fly fo rward and injure
you or your passengers. •
Operating instructions
Maximum trailer we ight
A trailer for your vehicle is limited to a typical class 1 or class 2 trailer . .,.
Vehicle care Do-it-yourself service Technical data

Observe speed limits. In some areas, speeds for vehicles towing
t railers are lowe r than for regular veh icles.
Always apply brakes early. When dr iv ing downh ill, sh ift in to a lower
gear to use the engine braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fail.
Coolant temperature
The coolant temperature gauge~ page 10 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or turn off the air conditione r.
If the coolant temperature warning light in the instrument cluster
star ts flashing
-t- , pull off the road, stop and let the engine idle for
about two minutes to prevent heat bu ild-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi. u
Trailer towing tips
Important to know
------------
Your vehicle handles differently when tow ing a tra iler because of the
additiona l weight and different weight distribution. Safety, perfor ­
mance and economy will greatly depend on how carefu lly you load
your trailer and operate your rig .
Before you actua lly tow your trailer, practice turning, stopp ing and
backing up in an area away from traffic. Keep pract icing until you have
become completely familiar with the way your vehicle-t railer combi­
nation behaves and responds.
Controls and equip­ ment Safety first Vehicle operation
Backing up
is d iff icult and requ ires practice . Backing up with a trailer
generally requires steer ing action opposite to that when backing up
your vehicle without a trailer.
Maintain a greater distance between your vehicle and the one in front
of you. You will need more room to stop . To compensate fo r the
trailer, you will need a larger than norma l turning radius.
When passing, remember that you cannot accelerate as fast as you
normally would because of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for you r
trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes .
[I) Tips
• Do not tow a trai ler during the break-in per iod of your vehicle.
• If you tow a tra iler, your Audi may requi re more frequent mainte­
nance due to the extra toad~
page 340. •
Parking on a slope
Do not park on a slope with a trailer. If it cannot be
avoided, do so only after doing the following:
When parking:
-Apply the foot brake.
- Have someone place chocks under both the vehicle and the
trailer wheels.
- With chocks in place, slowly release the brakes until the
wheel chocks absorb the load.
- Turn the wheels towards the curb.
- Apply the parking brake .
Vehicle care Do-it-yourself service Technical data

Controls and equip­ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

____________________________________________ C_l_e _a_ n_ i n--= g=--- a_n_ d----' p,__ r_o _t_ e_ c_ t_ i _o_ n __ lffll
Under certain circumstances, weekly washing may be necessary .
Under other conditions, a monthly washing and waxing may be
adequate.
After the winter, the underside of the vehicle shou ld be thoroughly
washed, p referably in a profess ional car wash.
& WARNING
Always read and heed all WARNINGS and other information
~page 256. •
Automatic car wash
The vehicle can be washed in almost any modern auto­
matic car wash.
Th e vehicle paint is so durable that the vehicle can normally be
washed without problems in an automatic car wash . However, the
effect on the paint depends to a lar ge exten t on the design of the
facility, the filtering of the wash water, the type of wash and care material, etc. If the paint has a dull appearance after going through
the car wash or is scratched, bring this to the attention of the oper­
ator immediately . If necessary, use a different car wash.
Before going thro ugh a car wash, be sure to take the usual precau­
tions such as closing the windows and the roof. Factory installed
antennas must not be removed.
If you have installed additional accessories on the vehicle -such as
spoilers, roof rack, etc. - it is best to ask the car wash operator if these
should be removed.
& WARNING
Always read and heed all WARNINGS and other information
~page 256. •
Safety first
Washing the vehicle by hand
A lot of water is needed when washing a vehicle by hand.
-Before you star t washing, make sure you have read and
understood the WARNINGS~
& in "General informa ­
tion" on
page 256.
- First soak all dried dirt until it is soft, then rinse it off .
- As you clean your vehicle, start with the roof and work your
way down to the bottom, using a sponge, a sponge glove
or a clean brush.
- Rinse the sponge or the sponge glove often, flush ing it
clean each time .
- Use special car shampoo only for very persistent dirt.
- Rinse the car thoroughly with water.
- Use a chamois leather to gently wipe the exterior dry.
Use a separate sponge for cleaning the wheels, door sills and other
regions exposed to road dirt. In this way, you will not scratch the
paint with coa rse particles imbedded in the sponge the next time you
wash the car.
& WARNING
• Do not clean the underside of the chassis, fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp-edged metal parts.
• Always read and heed all WARNINGS and other information
~page 256. _..
Vehicle care Technical data