2009 AUDI S6 checking oil

Warning light in the instrument cluster -L
When the _L warning light in the instrument cluster starts to flash,
this can mean one of two things: either the coolant
temperature is
too high, or the coolant
level is too low=> page 31.
If the needle is well in the upper area of the gauge, the coolant
temperature is too high. Stop the vehicle, switch the engine off and
allow the engine to cool. If the warning light comes on again after
driving a short distance, contact an authorized dealer.
& WARNING
• Always observe the warning in => page 293, "Engine compart­
ment", before opening the hood and checking the engine coolant
level.
• Never open the engine hood if you see or hear steam, or if you
see engine coolant dripping from the engine compartment . You
could burn yourself. Let the engine cool off first so that you cannot
hear or see any steam or engine coolant.
0 Note
• Mount ing additional lights or accessories in front of the air inlets
reduces the cooling effect of the radiator. At high outside tempera­
tures or high engine load, the engine could overheat .
• The front spoiler has been designed to properly distribute the
cooling air when the vehicle is moving. If the spoiler is damaged,
this could reduce the cooling effect and the engine could then over ­
heat. Ask your authorized Audi dealer for assistance. •
Tachometer (engine rev counter)
The tachometer indicates the engine RPM (revolutions per
minutes).
Th e tachometer 0 => page 12, fig. 2 is the left of the two large clock ­
type displays.
Controls and equip ­
ment
Instruments and warning/indicator lights
The engine turns at a speed 1,000 times the single digit in the
display, e.g. if the needle is pointing at the "2" the engine is turning
at
2,000 RPM.
If engine RPM drops below
1,500, you should downshift to the next
lower gear. The red area at the end of the scale indicates maximum
permissible engine RPM after the break -in period. Before reaching
this area, move the selector lever to position "D (Drivel" or ease your
foot off the accelerator pedal.
0 Note
The tachometer needle should not move into the red range. If it
does, then only for a very short period of time. You could damage
your engine by driving at high RPM.
'£> For the sake of the environment
Upshifting early saves fuel and reduces engine noise .•
Digital clock with date display
Dote and time of day con be set in the MM/.
Fig . 3 Instrument
cluster with digital
clock
The date, time of day, and time and date format can be set in the
MMI. You can find out more in the MMI manual. .,_
I • •

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
current list of oils (manufacturers, brand names etc.) that conform
t o Audi oi l standard VW 502 00 .
Changin g the engine oil
The engine oil and oil filter must be changed according to the
mi leage (ki lometers) and time intervals specified in your vehicle's
Warranty
& Maintenance booklet. Do not exceed these interva ls -
harmful deposits from old engine oil can reduce engine perfor­
mance and can lead to expensive engine repairs.
Changing the oi l at the recommended intervals is so very important
because the lubricating prope rties of oi l decrease gradual ly during
normal vehicle use . If you are not sure when you have your oil
changed, ask your author ized Audi Serv ice Advisor.
Under some circumstances the engine oil should even be changed
more frequently. Change oil more often if you dr ive mostly short
distances, operate the vehicle in dusty areas or mostly under stop ­
and -go t raffic conditions, or when you use your vehicle where
temperatures stay be low freezing point for long per iods.
Detergent additives in the oil will make fresh oil look dark after the
engine has been running for a short time . This is normal and is not
a reason to change the oil more often than recommended.
Damag e or malfunctions due to lack o f mainten anc e
It is essentia l that you change your oi l at the recommended interva ls
using on ly engine oil that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle Warranty does not cover damage or ma lfunctions due to failure to follow recommended
main tenance and use requirements as set forth in the Aud i Owner's
Manual and Warranty
& Maintenance booklet. Your dealer wi ll have
t o deny warranty cove rage unless you present to the dealer p ro o f in
the form of Service or Repair Orders that all schedu led maintenance
was pe rformed in a timely manner. •
Engine oil consumption
The engine in your vehicle depends on an adeq uate
amount of oil t o lubric ate and c ool all of its m oving parts.
In order to provide effective lubrication and coo ling of interna l
engine components, al l interna l combustio n eng ines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change significant ly over the life of the engine . Typ ically,
engines with a specified break-in period (see=> page 271) consume
more oil du ring the break-in period than they consume after oil
consumption has stabi lized .
Unde r normal conditions, the rate of oil consumption depends on
the quality and v iscosity of the oil, the RPM (revolutions per minute)
at which the engine is operated, the ambient temperature and road
cond itions. Fur ther factors are the amount of oil di lu tion from wate r
condensation or fue l residue and the oxidation leve l of the oi l. As
any engine is subject to wear as mileage bu ilds up, t he oil consump ­
tion may increase over time until replacement of worn components
may become necessa ry .
With all these variables coming into play, no standard rate o f oi l
consumption can be established or specified . There is no alternative
t o regula r and frequent checking of the oil level, see
Note .
If the yel low engine oil level warning symbo l in the instrument
clus ter lights up, yo u should check the oil level as soon as
possible with the oil dipstick=> page 305. Top off the oil at your
ea rliest convenience => page 306 .
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNING S
=> & in "Working in the engine
compartment " on
page 301.

_____________________________________________ C_h_ e_ c _ k_in -= g_a _ n_d _ f_il _li _n ..;::g =-- ____.111
0 Note
Driving with an insufficient oil level is likely to cause severe damage
to the engine.
[ i] Tips
• The oil pressure warning display~ is not an indicator of the oil
level. Do not rely on it. Instead, check the oil level in your engine at
regular intervals, preferably each time you refuel, and always before
going on a long trip.
• If you have the impression your engine consumes excessive
amounts of oil, we recommend that you consult your Audi dealer to
have the cause of your concern properly diagnosed. Keep in mind
that the accurate measurement of oil consumption requires great
care and may take some time . Your Audi dealer has instructions
about how to measure oil consumption accurately. •
Checking the engine oil level
Fig. 239 Illustration of
principle 1: Markers on
oil dipstick
Fig . 240 Illustration of
principle 2: Markers on
oil dipstick
Before you check anything in the engine compartment,
always read and heed all WARNINGS=> & in "Working in
the engine compartment" on
page 301.
Determining oil level
-Park your vehicle so that it is horizontally level.
- While at operating state temperature, briefly let the
engine run at idle and then shut it off.
- Wait approx. two minutes.
- Pull out the oil dipstick. Wipe off the oil dipstick with a
clean cloth, and slide it back in as far as it will go.
Pull it back out and read off the oil level=> fig. 239 or
=> fig.
240. Top off the engine oil, if applicable
=>
page 306.
Oil level within range @
- Do not add oil.
Oil level within range @
-You can add oil. Afterwards, the oil level should be within
range @. _,,,
Vehicle care I I irechnical data

lffl __ C _h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
models; 60% for Canadian models). This mixture both assures the
necessary frost protection and protects metal components in the
engine's cooling system from corrosion and scaling. It also raises
the boiling point of the coolant.
Do not reduce the concentration of the coolant in the summer by
adding plain water.
Th e pro port io n of coo la nt additi ve mu st be at
lea st 50 % but n ot mor e th an 60 %
to maintai n ant ifreeze protection
and cooling efficiency. If the coolant frost protection is too low , the
coolant could free ze and damage the veh icle heating and engine
cooling system .
For year-round driving , antifreeze is added at the factory for temper ­
atures down to:
• -31 °F ( -35 °c1 usA
• - 40 °F ( - 40 °C) Canada.
You can mix the
Gl 2+ + coolant additive with other additives (G12+
or G12). Always check w ith your authorized Audi dealer.
& WARNING
B efo re you che ck anyt hing in th e eng ine compartmen t, alway s
re ad a nd he ed all WARN ING S~
& in " Working in the engine
c ompar tm ent " on
page 30 1.
0 Not e
• Before winter sets in, have the coolant checked to see if the
coo lant additive in your vehicle is sufficient to meet the climate
conditions. This is especia lly important if you live in a region where
the winter is extremely cold . If necessary, increase the proportion of
coolant additive to 60%.
• When adding coolan t additive to your coo ling system,
remember:
-We recommend using only coolant additive
G12+ + (check the
label) for your vehicle. This coolant additive is avai lable at autho­
riz ed Audi dealers. Other types of antifreeze can significantly reduce corrosion protection. The resulting corrosion can cause a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle's
engine coolan t. Adding radiator repair fluid may adversely affect the
function and performance of your cooling system and could result
in damage not covered by your New Vehicle Limited Warranty. •
Checking the engine coolant level
The engine coolant level can be checked with a quick
glance.
F ig . 2 42 E ngin e
com partm ent : Cool ant
ex pans io n tank
Before you check anything in the engine compartment,
alw ays read and h eed all WARNINGS ~ & in "Working in
the eng ine compartment" on page 301.
- Turn off the ignition.
- Read the e ngine coo lant level from the coo lant expan -
sion tank~ fig. 242. With a cold engi ne, the coolant level
sho uld be between the "min" and "max" markings. W hen
the engine is warm, the level may be slightly above the
"max" marking .
The location of the coolant expansion tank can be seen in the
engine compartment illustration~
page 302.

Tires and wheels -_______________________ ..::...:..:..-=::.......:.:..;::..:....____;___
•
Wheel bolts
Wheel bolts must always be tightened to the correct
torque.
The design of wheel bolts 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
wheels are fitted securely and that the brake system functions
correctly.
In certain circumstances, you may not use wheel bolts from a
different vehicle - even if it is the same model~
page 374.
& WARNING
Improperly tightened or maintained wheel bolts can become loose
causing loss of control, a collision and serious personal injury.
• Always keep the wheel bolts and the threads in the wheel hubs
clean so the wheel bolts can turn easily and be properly tightened.
• Never grease or oil the wheel bolts and the threads in the wheel
hubs. They can become loose while driving if greased or oiled,
even if tightened to the specified torque.
• Only use wheel bolts that belong to the rim being installed.
• Never use different wheels bolts on your vehicle.
• Always maintain the correct tightening torque for the wheel
bolts to reduce the risk of a wheel loss.
If the tightening torque of
the wheel bolts is too low, they can loosen and come out when the
vehicle is moving. If the tightening torque is too high, the wheel bolts and threads can be damaged and the wheel can become
loose.
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 wheel bolts diagonally.
After changing a wheel, the torque must be checked as soon as possible with a torque wrench
-preferably by an authorized Audi
dealer or qualified workshop. •
Low aspect ratio tires
Your Audi is factory-equipped with low aspect ratio tires. These tires
have been thoroughly tested and been selected specifically for your
model for their superb performance, road feel and handling under
a variety of driving conditions. Ask your authorized Audi dealer for
more details.
The low aspect ratio of these tires is indicated by a numeral of 55 or
less in the tire's size designation. The numeral represents the ratio
of the tire's sidewall height in relation to its tread width expressed
in percentage. Conventional tires have a height/width ratio of 60 or
more.
The performance of low-aspect-ratio tires is particularly sensitive to improper inflation pressure. It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflation pressure is regularly checked and maintained. Tire pres­
sures should be checked at least once a month and always before a
long trip~
page 323, "Checking tire pressure" .
What you can do to avoid tire and rim damage Low aspect ratio tires can be damaged more easily by impact with
potholes, curbs, gullies 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 vehicle, we recommend that you observe the following
precautions:
• Always maintain recommended inflation pressures . Check your
tire pressure every 2,000 miles (3,000 km) and add air if necessary.
• Drive carefully 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. ..,
Vehicle care
I t •

___ A_l.:,. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
Doors
Power child safety lock .... .... .... . 51
Power side door closer . . . . . . . . . . . . . 48
Driver information system .... .... .... . 23
Digital speedometer .. ............ . 25
Driver information messages .. .... . 28
Open door or rear lid warning ... .... 25
Outside temperature disp lay .. . .... . 24
Sound system display . .... ...... .. 24
Driver seat
See Seating position . . . . . . . . . . . . . . 196
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . . 81
Driver's seat memory . . . . . . . . . . . . . . . . . 84
Activating remote control key .. ... .. 85
Recalling a seat position .. .... .... . 84
Storing a seat position ..... ... .... . 84
Driving messages .... .... .... ... .... . 28
Driving safely .. .............. ...... 194
Driving time ........ .... ... ........ .. 38
Duplicate key ........................ 41
DVD player for navigation system . . . . . . 91
Dynamic shift program ... .... ... .... 165
E
Easy entry feature 116
Electric seat adjustment
See Power seat . . . . . . . . . . . . . . . . . . . 81
Electromechanica l parking brake
Emergency braking .... ....... .... 123
Malfunction ...... .... .... ...... . 123
Operation . . . . . . . . . . . . . . . . . . . . . . . 121
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 122 Releasing and app
lying ... .. .. .... 121
Starting off with a trailer .. ........ 123
Warning/indicator lights ... .... .... 21
Electronic differential lock (EDU How the system works . .... ....... 263
Warning/indicator lights ....... .... 21
Electronic immobilizer .......... ... 14, 44
Electronic power control (EPC) warning/indicator light ... .... . 18
Electronic speed limiter ..... ....... ... 27
Electronic stabi lization program (ESP)
How the system works ............ 262
Warning/indicator lights ....... .... 18
Emergency braking . . . . . . . . . . . . . . . . . 123
Emergency closing Power sunroof . ... ..... ... .... . 60, 61
Emergency flasher . . . . . . . . . . . . . . . . . . . 67
Warning/indicator lights ........... 19
Emergency locking of doors .. ........ . 50
Emergency starting ........ .... ... .. 357
Emergency towing ... .... .... .... ... 360
Energy management . ....... ... .. ... 269
Battery power . . . . . . . . . . . . . . . . . . . 270
Driver notification 270
Engine Compartment . .... .... .... .... .. 302
Coolant ....... .... ... .... ....... 307
Hood ..... .... .... .... ........ .. 300
Starting .. .... ... .... .... ... 116,117
Starting with jumper cables ... .... 357
Stopping .. .... .... .... .... ...... 118 Engine compartment
Safety instructions . ....... .... ... 301
Working the engine compartment .. 301
Engine coolant system .. ...... ....... 307
Adding coolant .... ....... ....... 309
Checking coo lant level . .... .... ... 308
Checking the engine coo lant level .. 308
Malfunction .. .. .. .. .. .... .... .. . . 31
Radiator fan . .... .... .... .... .... 310
Engine coolant temperature
Temperature gauge ....... .... .... 12
Engine data ...... .... .... ...... .... 369
Engine hood Closing .... .. ... ..... ....... .... 301
How to release the hood . . . . . . . . . . 300
Engine oi l .......................... 303
Adding ... .... .... .... .... ...... 306
Additives .. .... .... .... ... .... ... 306
Changing .. .... .... ... ........ .. 306
Checking the engine oil level ....... 305
Indications and conditions requiring extra
checking .. ...... .... ...... .... 305
Oil consumption . ...... .... .... .. 304
Oil grades .. .... .... ... .... ...... 303
Recommended oil check intervals .. 305
Specification and viscosity .. ..... .. 303
Engine oi l leve l ... .... .... .... ...... . 35
Engine oil pressure
Malfunction ....... ....... ........ 32
Engine oil sensor defective .... .... ... . 35
Engine speed limitation ... .... .... .... 36