2014 AUDI A6 Engine light

18 Instrum ent s and w arn ing /indic ato r light s
the safety belt. Additionally, an acoustic warn­
ing (gong) will a lso sound.
For more Information
c::> page 138, ~ Safety
belt warning light.
The red engine oil pressure warning symbol
requires immediate service or repair. Driving
with a low-oil-pr essur e indication is likely to
inflict severe damage to the engine.
• Swit ch off engine and ch ec k oil l evel
If the indicator light turns on and the mes­
sage appears, the oil pressure is too low .
., Pull off the road.
., Stop the vehicle.
., Turn off the engine .
., Check the engin e oil level c::> page 229 .
., If the engine oil level is too low, add engine
oil
c::> page 229 . Make sure that the oil p res­
s u re warning symbol. appears no longe r
in the disp lay before you start dr iving again.
• If the engine oil level is correct and the indi­
cato r light sti ll turns on, turn the engine off
and do not continue driving. Seek professio­
nal assistance.
(D Tips
- The engine oil pressu re symbol. is
not an indicator for a low eng ine oil lev ­
el. Do not rel y on it. Inst ead , che ck th e
oil l evel in your engin e at regular int er­
val s, pref erabl y each tim e you refu el,
and alwa ys bef ore go ing on a long trip .
- The yell ow oil le vel warning indication
II requires oil refill or wo rksho p serv ·
ic e without del ay . Do n ot wait unti l the
red oil pre ssur e w arning. sta rt s to
fla sh before you re spond t o the low oil
le vel warning
II. By then , your engine
may al ready have suffered serious dam­
age .
~ .. Engine oil level
• WARNING: P lease add oil immedia tely
If the indicator light and the driver message
appear, add engine oi l immediate ly
c::> page 226 .
II Add oil, m ax. x q t (l). Yo u m ay contin ue
driving
When the symbol and the driver message ap­
pear, add the amount of oil appearing in the
display at the nex t oppor tunity
c::> page 226.
@ -Steering column lock
• Do not dr ive veh icle : Stee ring defecti ve
If the indicator l igh t turns on and the mes­
sage appears, there is an e lectronic stee ring
column lock malfunction . You cannot switch
the ignition on .
Do
not tow your vehicle because it cannot be
steered . See k professiona l assistance .
1;11 Steering lo ck : s ystem fault . Plea se con­
tact de ale r
If the indica tor light turns on and the mes­
sage appears, there is an electronic steering
column lock malfunct io n.
Drive to your authori zed Audi dealer immedi­
ately to have the mal function corrected .
A WARNING
Your vehicle must not be towed in the
event of a malfunction in the electronic
steering co lumn lock because it cannot be
steered due to the loc ked steering. If it is
towed with the steering locked, there is
the r isk o f an accident .
©-Engine start system
• Engine st art system fa ult. Ple ase con­
tact deale r
If the indicator l ight turns on and the mes­
sage appears, do
n ot switch the ignition off
because you may not be ab le to switch it on
again.
Drive to your authorized A udi dealer immed i-
a tely to have the ma lfunction corrected. ..,.

Instruments and warning/indicator lights 19
II! Engine start system fault. Please con­
tact dealer
If the indicator light turns on and the mes­
sage appears, there is a ma lfunction in the en­
gine start system.
Drive to your authorized Aud i dea le r immedi­
ately to have the malfunction corrected.
~ Air suspension
Appl ies to vehicles: with air suspension
• Air suspension: system fault. Can contin­
ue slowly with max. 35 mph .
There is a malfunct ion that can result in re­
stricted dr iv ing stab ility.
Carefully drive at a maximum speed of 35
mph (60 km/h) to your authorized Audi dealer
or qua lified workshop to have the malfunction
cor rected.
• Air suspension: service mode. Vehicle
can only be moved with restrictions
Carefully drive to your authorized Audi dealer
or qualified workshop immediately to have
the service mode deactivated .
II Air suspension fault
There is a system ma lfunction that can result
in restricted driving stability or reduced
ground clearance.
Dr ive to your a uthorized Audi dealer immedi­
ately to have the malfunction corrected .
II Air suspension: vehicle too low. Ground
clearance reduced
The ground clearance is very low due to a sys­
tem malfunct ion . Wait until the air suspen­
sion system has restored normal ground clear­
ance. Otherwise, conditions such as an uneven
road surface can lead to vehicle damage.
G:;/ !f Safety systems
The fl (USA models) ;EI (Canada models) in­
dicator light monitors the safety systems (e.g .
airbags, pretensioners) and illuminates for a few
seconds each time you switch the ignition
on .
If the fl (USA models);EI (Canada models)
indicator light does not go out, or if it illumi­
nates while you are driving, or if it starts to
blink, then there is a malfunction somewhere
in the system.
If the light does not illum inate
when you switch the ign ition on, th is also
means there is a malfunct ion.
A WARNING
If you have a malfunction in the safety sys­
tems, contact your authorized Audi dealer immediately. Otherwise the safety sys­
tems may not work properly in an acc i­
dent.
& Central indicator light
If the indicator light. or n turns on, check
the message in the instrument cluster .
nlft Electronic Stabilization Control
(ESC)
If the JjJ indicator light blinks while driving,
the ESC or ASR (Anti-Slip Regulation) is active ­
ly regulating.
If the
$.J indicator light turns on, the system
has switched the ESC off. In this case, you can
switch the ign ition off and then on to switch
the ESC on aga in. The indicator light turns off
when the system is functioning fu lly.
If the
1B indicator light turns on, ESC was re­
stricted using the
1 .$ OFF I button c> page 194.
Stabilization control (ESC/ABS): Fault! See
owner's manual
If the G) indicator light and the ABS indicator
light
fJ] (USA mode ls) ;flJ (Canada models)
turn on and the message appears, the ABS or electronic differential lock is malfunctioning.
This also causes the ESC to malfunction . The
brakes still function with their normal power,
but ABS is not active .
liJI,

Instrument s and warnin g/indic ator ligh ts 21
the rear wheels could lock up first under
hard braking. Rear wheel lock-up can
cause loss of vehicle control and an acci­
dent. Have your vehicle repaired immed i­
ately by your authorized Audi dealer or a
qualified workshop. Dr ive slowly and
avo id sudden, hard brake applicat ions.
(0) Worn brake pads
IJ Brak e pads!
If the warn ing light illum inates, immediately
contact your author ized Audi dealer or quali­
fied workshop to have all bra ke pads inspect­
ed. O n USA models the wa rning light
IJ
comes on togethe r wi th the warn ing light
1111 . Both sets of brake pads on an axle
must always be replaced at the same time .
& WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury.
- If the wa rning light IJ and the warning
light
11111 ) with the message B rake
pads ! comes on in the instrument cluster
display, immediately contact your au­
thorized Aud i deale r or qualified work­
shop to have all brake pads checked or replaced if necessary.
EPC Electronic powe r control
App lies to vehicles: with gaso line engine
This warning/indicator light monitors the
electronic power control .
The Ga warning/ indicator light (Electron ic
Power Control) illuminates when you switch
the ignition on as a function check .
@ Tips
If this warning/indicator light illuminates
while you are dr iving, then there is a mal­
function in the engine electron ics. Have
the malfu nction corrected as soon as pos-
l ) - : USA models only
-
'
sible by your authorized Audi dealer or
qualified repair facility .
W Glow plug system
Applies to vehicles: with diesel eng ine
The control light illuminates when the glow
plug system is active.
If the II i ndicato r light illum inates, the g low
pl ug system is a ct ive. You sho uld start the en­
gine immediately after the ind icator light
switches off. The indicator light only illum i­
nates for approximate ly 1 second if the en­
gine is warm or if the outs ide temperature is
above 46 QF (8 Q().
(l) Tips
-If the glow plug indicator light illum i­
nates while dr iving, there is an eng ine
control malfunction. The engine should
be checked immed iate ly.
- If the ind icator light does not illuminate
at all when switch ing the ign it ion on,
there may be a malfunction in the glow
plug system. The engine sho uld be
ch ecked.
0 Malfunction Indicator Lamp (MIL)
T he Ma lf u nction Indicator Lamp ( MIL) is pa rt
of the On-Board Diagnostic (OBD II) system.
T he symbo l
¢.j lights up when the ignition is
switched on and will turn off after the engine
has started and has settled at a constant idle
speed. This indicates that the MIL is work ing
properly.
The warning lig ht ill uminates when there is a
malfunction in the engine electron ic system.
Contact your a uthorized Audi dea ler and have
the malfunction corrected.
An improperly closed fuel filler cap may a lso
ca use the MIL light to illuminate
9 page 218.
For more information 9 page 30 .

22 Instruments and warning/indicator lights
®'-Diesel particulate filter clogged
Applies to vehicles: with diesel engine and diesel particu­
late filter
II Particulate filter: System fault See own­
er's manua l
When the. symbol ill uminates, you can a l­
ter your driving style to assist the fi lter self­
clean ing p rocess . D rive for approx imately 15
minu tes wi th the sel ector leve r in the S pos i­
tion at a m inimum speed of 37 mph (60 km/
h ) a nd an engine speed of app rox imately
2, 000 R PM. The tempe ratu re i ncrease th at
will resu lt fro m t his can bur n off t he soo t in
the fil ter. The symbol wi ll switch off when the
clean ing is successf ul. Afte r a successful
cleaning, there is no need to br ing the car to
an author ized dealer or qualif ied worksh op
beca use this is part of normal vehicle opera­
ti on .
I f the symbo l
Ill does not switch off, see
your author ized dealer or other qualified
workshop to have the prob lem cor rected.
For more in format io n on the diesel pa rticu ­
l ate filte r, refer to
¢ page 202.
A WARNING
Always adapt yo ur s peed to the cu rrent
weat her, road and traffic conditions. Y ou
sh ould never disobey t raffic laws in order
t o follow driv ing recomm endations .
!'7i Engine speed limitation
Applies to vehicles: with engine speed limitat ion
Ill Engine speed maximum XXXX RPM
-
The engine speed is automatically lim ited to
the speed disp layed in the dr ive r information
system. This protects t he e ng ine from over ­
h eat ing.
The engine speed limitation deactivates once
the eng ine is no longer in the crit ica l tempera­
ture range and you have released the acce lera ­
tor peda l once.
If t he engine speed limitation was act ivated
by an eng ine control malfunction, the ind ica- tor
light ~ also tu rns on . Ma ke s ure that the
s p eed does not go a bove the s peed disp layed .
Drive to y our authorized A udi dealer immedi ­
ate ly to have the ma lfunction corrected.
~"" Engine oil sensor
l!I Oil level! Sensor defective
If the symbol illuminates, contact yo ur au­
t h orized Audi dea ler and have the oil sensor
i nspected . U ntil yo u have this done, check t he
o il level each time you refue l just to be on the
saf e side
c> page 229.
EltJ Fuel level indicator
Ii] Please refuel
If the indicato r light turns on f or the first
t ime and the message appea rs, there are
abo ut 2.6 ga llons (10 lite rs) o f fuel left in the
tan k. Time to refu el
<=> page 217 .
llD Tank system malfunction! Contact dealer
If the indicator light turns on and this mes­
sage a ppears, there is a malf unct ion in the
tank system.
D rive to your au thori zed A udi dealer immedi ­
ate ly to have the ma lfu nction corrected.
Co Windshield washer fluid level
• Please refill washer fluid
If the symbol illum ina tes, ad d windshie ld
washe r fl ui d to t he washer system/headlight
washe r system *
¢ page 238 .
4J:> Windshield wipers
£~$ Windshield wiper defective
T he re is a malfunction with t he windshie ld
wipe rs .
Dr ive to your au th o riz ed A udi de aler i mme di­
ately to have the m alfunction correc ted.

Instruments and warning/indicator lights 25
For some vehicle functions, you can access the
trip information from the temporary memory
¢
page 26 in the line CD¢ fig. 5.
.&_ WARNING
-
- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not . Keep in mind
that road surfaces, especially bridges
and overpasses, could be ice covered and
slippery even at an outside temperature above
41 °F (+5 °().
- Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­
pear in the display, black ice could be on
the road.
- Always reduce your speed and drive with
special care in cold weather conditions
when the chance of encountering icy
road surfaces increases.
@ Tips
- At temperatures below 14 °F (+ 5 °C) a
snowflake symbol appears ahead of the
temperature display. It is intended to re­
mind the driver to pay special attention
to
ice on the road ¢ ,&. . If the vehicle is
stationary, or if you are driving at a very
low speed, the temperature shown in the
display might be slightly higher than the
actual outside temperature . This is
caused by the heat being radiated from
the engine .
- You can select the units used for temper­
ature, speed and other measurements in
the MMI.
- For information on the audio/video and
navigation* functions, refer to the sepa­
rate MMI owner's manual.
Operation
The driver information system is operated us­
ing the buttons on the multifunction steering
wheel.
Fig. 6 Multif unctio n steerin g wh eel: operat in g th e driv­
er informat ion sys te m
Fig . 7 Dr iver informat ion syste m: o penin g the ve hicle
fu nctio ns me nu
Operating concept
"'Switch the ignition on .
"'To switch between the tabs, press the rocker
switch CD to the left or right ¢
fig. 6.
"'To access additional information below or
above, rotate the thumbwheel @down or
up.
"' To confirm a selection, press the thumb­
wheel @.
"' Press the
Iii button @ to open a sub menu
for an active tab .
"'Press the button @ to access a function for
the programmable steering wheel button* .
Accessing Vehicle functions
"'Select the first tab with the rocker switch
CD -
.. Press the button
liJ@. The Vehicle func­
tions
menu appears ¢ fig. 7.
"'To select a menu item, turn and press the
thumbwheel @.

Instrument s and warning /indicator lights 2 7
Other equipment that is currently affecting
fuel consumption is listed in the efficiency
program. The display shows up to three other
items of equipment @. The equipment using
the most fuel is listed first. If more than three items using fue l are switched on, the equ ip ­
ment that is currently using the most f uel is
d isplayed .
A scale @ also shows the current total con­
sumpt ion of all other equ ipment .
Fuel economy messages
Fig. 9 Dis p lay: exa mple of a fue l eco no m y m essage
F ue l economy messages are disp layed when
fuel consumption is increased by certain con ­
ditions. If you follow these fuel economy mes­
sages, you can reduce your vehicle's consump­
tion of fuel. The messages appear automati­
cally and are only disp layed in the eff ic iency
p rog ram. The fuel economy messages turn off
au tom atically after a certa in period of time.
~ T o turn a n economy message off immediate­
ly after it appears, p ress any b utton o n the
mult ifunct ion steer ing whee l.
@ Tips
-Once you have t urne d a fuel economy
m essage off, it will only appear again af­
te r you turn the ignition o n aga in.
- The fuel economy messages ar e not dis­
p layed in
every insta nce, but rat her i n in­
t e rva ls
ove r a period of t ime .
Cylinder on demand System
Applies to veh icles: w ith 4.0 TFSI engine
Fi g. 10 Inst rumen t cl us ter : fu el cons umption
To save fuel, the engine automatically turns
fo ur cy linders on or off, depend ing on the
amount of power needed . Th is act io n is not
felt by the passengers .
Displaying cylinder mode
Requirement: the on -board comp ute r is d is ­
played ¢
page 26.
~ Turn the thumbwheel u nti l the current fuel
cons umption display is shown in the instru ­
ment cluste r.
If the green bar is displayed,
y o u are driving in 4-cy linder mode.
Basic requir ements for 4 -cylinder mode
4 -cylinder drive mode is used a utomat ica lly if
certain basic requirements a re f ulfille d. These
incl ude :
-A low power ou tpu t re qui rement.
- Dr iving in t hird gear or hig her.
- Engi ne speed between 960 and 3,500 RPM .
-A warm eng ine.
Odometer
Fig. 1 1 Instrumen t cluste r: Odo mete r and rese t but­
to n

30 Instruments and warning/indicator lights
Display brightness
You can adjust the display brightness in the
MMI. The display brightness decreases auto ­
matica lly as the amo unt of light decreases.
The basic leve l of brightness is adjusted with
the instrument illumination
c:> page 46.
(D Note
To prevent scratches on the glass covering
the Head-up Disp lay, do not place any ob­
jects in the projection opening.
@ Tips
- Sunglasses with polarization fi lters and
unfavorable lighting conditions can af­
fect the display.
- A specia l windshield is needed for the
Head-up Display function.
- For information on cleaning, refer to
c:> table on poge 212.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) II! in
the instrument cluster is part of the On-Board
Diagnostic (OBD II) system.
The warning/indicator light illuminates when
the ignition is switched on and goes o ut after
the engine starts and the idle has stabilized.
This indicates that the MIL is working proper­
ly .
If the light does not go out after the engine
is started, or illuminates while you are driv­
ing, a ma lfunction may exist in the engine sys­
tem. If the light illuminates, the catalytic con­
verter could be damaged.
Continue driving
with reduced power (avoid­
ing sustained high speeds and/or rapid accel­
erations) and have the condition corrected.
Contact your authorized Audi dealer .
If the light illuminates, the electronic speed
limiter may also be malfunctioning. For more information
r=.> page 31,
Electronic speed
limiter .
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
c:>page 218.
On-Board Diagnostics
Fig. 16 Locat ion of Data L ink Con nector (DLC)
On-Board D iagnost ics monitors the compo­
nents of your em iss ion control system . Each
monitored component in your engine system
has been assigned a code . In case of a mal­
function, the component will be identified
and the fault stored as a code in the control
module memory.
T he MIL light may also illuminate if there is a
leak in the on-board fuel vapor recovery sys­
tem.
If the light illum inates after a refuelling,
stop the vehicle and make sure the fuel filler
cap is properly closed
c:> page 218.
In order to make an accurate diagnosis, the
stored data can only be displayed using spe ­
cial diagnostic equipment (generic scan tool
for OBD).
In order to connect the special diagnostic
equipment, push the plug into the Data Link
Connector (DLC). The DLC is located to the
right of the hood release
r=.> fig . 16 .
Your authorized Audi dea ler or a qualified
serv ice station can interpret the code and per­
form the necessary repair.
A WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause

malfunctions, which can increase the risk
of a coll is ion!
Electronic speed limiter
Instruments and warning/indicator lights 31
Your vehicle may be factory equipped with
tires that are rated for a maximum speed of
130 mph (210 km/h) . This is less than the
maximum speed of your vehicle. To reduce the
risk of sudden tire failure and loss of control if
the veh icle is ope rated at excessive speeds,
your veh icle also has an elect ronic speed limit­
er. The electronic speed limiter prevents your
vehicle from going faster than the tire speed
rating . For more information
c:::> page 251.
If the engine control unit receives faulty vehi­
cle road speed s ignals, the Malfunction Indi­
cator Lamp (MIL)
¢,llij will illuminate . If this
occurs, contact the nearest authorized Audi
dealer for assistance.
S models
Your veh icle's top speed is electronically limit­
ed to 155 mph (250 km/h).
I f the engine control unit receives faulty vehi­
cle roadspeed signals, the Malfunction Indica­
tor Lamp (MIU
¢,llij will illum inate. If this oc­
curs, contact the nea rest authorized Audi
dealer for assistance.
8_ WARNING
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traffic and weather conditions. Never
drive your vehicle faster than the maxi­
mum speed rating of the tires insta lled.