2016 AUDI S6 check engine

Instruments and indicator lights
Instruments and indicator Lights
Instruments
Instrument cluster overview
The instrument cluster is the central information center for the driver.
Fig. 3 Instrument cluster overv iew
(D Engine coolant temperature gauge
@ Tachometer .... .. .. ..... .... .
- with status indicator
OFF .... .
-with status indicator READY .. .
@ Turn signals .... ........... .. .
© Display with
- Driver information system .... .
- Indicator lights ............ .
® Tachometer 10
11
74
79
45
23
11
@ Fuel
level . . . . . . . . . . . . . . . . . . . . 11
a) Tips
The instrument illumination for the needles
and dials turns on when the ignition is turned
on and the lights are turned off. The illumina­
t ion fo r the dials reduces automatically and
eventua lly turns off as brightness outside in­
creases . This function reminds the driver to
turn the headlights on at the appropriate
time.
Engine coolant temperature gauge
The engine coo lant gauge (D Q page 10, fig. 3
only works when the ign ition is on. To prevent
10
damage to your engine, please note the follow­
ing important points:
Engine cold
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem­
perature yet. Avoid high engine speeds, heavy en­
gine loads and heavy throttle applications.
Normal temperature
The engine has reached its operating tempera­
ture once the LEDs up to the center of the gauge
turn on under normal driving conditions. The
LEDs higher up may turn on when the engine is
under heavy load or the exterior temperature is
high . Th is is no need to worry as long as the.
warning light in the instrument cluster does not
ill uminate .
If the LEDs in the upper area of the
display and the indicator light. in the instru­
ment cluster display turn on, the coolant temper­
atu re is too high
Qpage 15.
A WARNING
-Always observe the warning in <9page 216,
before opening the hood and checking the
engine coolant level.

Instruments and indicator lights
-The engine compartment of any motor vehi­
cle is a potentially hazardous area. Before
you check anything in the engine compart­ ment, stop the engine and let it cool down.
Always exercise extreme caution when work­ ing under the hood~
page 216.
Central indicator light
Applies to vehicles: w ith monochrome display
If a message appea rs together with a centra l in­
d icator light . or
n. the cent ral indica to r li gh t
w ill ind icate the prior ity of the warn ing . If a
white indicato r light also appears, the cent ral in ­
d icator light will have its own co lor . For examp le,
if l!!JI appears together with. , read the desc rip­
tion for •.
Overview
Some ind icator lights turn on briefly to check the
function of that system when you switch the ign i­
tion on. These systems are marked with a ./ in
the following tables. If one of these indicator
lig hts does not tu rn o n, there is a ma lfu nction in
that system.
Red indic ator lights
12
-------------
US A mode ls:
Brake malf u nct ion./
¢ page 14
Canada models :
Brake malfunct io n ./
¢page 14
USA models:
Electromechan ica l park ing brake
¢page 15
Canada models :
Electromechanica l park ing bra ke
¢ page 15
Engine coo ling system
¢ page 15
Engine oil pressure
¢page 17
Engine oil level
¢page 17
Battery
¢ page 16
Engine stops wh ile driving
¢ page 16
Safety be lt
¢ page 16
Elec tromechanical steering ./
¢page 190
Elec tronic steering col umn lock
¢ page 17
En gine sta rt system
¢ page 17
Cent ral indicator light
¢ page 12
USA models : Speed warning sys­
tem
¢ page 81
Can ada model s: Speed warning
system
¢ page 81
Adap tive cruise contro l* ./
~ page 86
Air su spension*
¢ page 17
Night vision assistant*
¢page 103
Night vision assistant*
¢ page 103
Refill Ad Blue*
¢page 212
AdB lue malfunct ion *
¢ page 212
Yellow ind icator l ights
AIR
BAG
r--------------
U SA m odels : Safety systems
¢page 18
Canada models : Safety systems
¢page 18
Electronic Stabilization Control
(ESC) ./
¢page 18
Electronic Stabilization Control
(ESC) ./
¢page 18

Instruments and indicator lights
Other indicator ligh ts
CRUISE
-------------
Turn signals
¢ page22
USA model s: Cruise control*
¢ page82
Canada model s: Cruise control*
¢ page82
Adaptive cru ise control*
¢ page86
Adaptive cru ise control*
¢ page86
Adaptive cru ise control*
¢page86
Audi activ e lan e assist *
¢page 94
Start-Stop-System *
¢page 79
Start -Stop-System *
c::>page 79
High beam assist*
c::> page 45
H igh beam
c::> page 45
BRAKE /C©) B rake system
The light illum inates when the ignit ion is switch­
ed on . It goes out after the engine has been
started . T hi s indicates that the brake war ning
light is f unction ing p roperly.
If the brake warning light does not light up
when the engine is crank ing, there ma y be a
malfun ction in the elec tri cal sy stem. In this
ca se , contact your Audi deal er.
If the brake system warn ing/ indicator light turns
on, there is a brake system malfunction.
1111 ( USA model s)JII (Canada models ) Stop
v ehicle and check brake fluid level
If the indicator lig ht tu rns on and the message
appears, proceed as follows:
.. Pu ll off the road .
.. Stop the veh icle .
.. Turn off the engine .
14
.. Check the b rake fluid level c::> page 225.
.. Contact your nearest authorized repair facility if
necessary .
Warning! Fault in brake s ystem. Contact dealer
If the ABS ind icator light rJ:11 (USA models) ;tiJ
(Canada mode ls), the ESC indica to r li ght
GJ and
t h e b rake system indicator light
1111 (USA mod­
e ls) ;II (Canada models) turn o n and the mes­
sage appears, the ABS, ESC and b raking distrib u­
tion are not working ,:::,
&..
Caref ully dr ive to yo ur autho rized Aud i de aler i m ­
med iate ly to have the ma lfunction corrected
,:::, &. .
1111 (USA model s)JII (Canada model s) Park ­
ing brak e: sy ste m fault! Pl eas e contact dealer
- If the ind icator light and the message appea r
when stationary or after switching the igni ­
t ion on ,
check if you can release t he parking
brake. Afte r rele asing the par king br ake, ca re­
fully drive to your author ized Audi dealer im ­
mediately to have the malfunction corrected . If
you cannot re lease the parking brake, see k pro­
fessional assistance.
- I f the ind icator light and the message appear
while dri ving , the emergency braking functio n
may not be available. It may not be possible to
set the parking brake or re lease it once it has
been set. Seek profess ional assistance .
( U SA mode ls) : If the warning light
1111 and the
warning light
riJ appear togethe r, immediately
contact your author ized Audi dealer or qualif ied
workshop to have all b rake pads inspected
¢ page 19.
When the light comes on, an audible warning sig­
nal is also given.
A WARNING
- Always observe the warnings in
c::> page 216, before open ing the hood and
checking the brake fluid .
- Dr iving with low brake fluid is a safety haz­
ard . Stop the car and get profess ional assis -
tance .
1111>

-If the 1111 (USA models) . (Canada mod­
els) brake system indicator light turns on to­
gether with the ABS and ESC indicator
lights, the ABS/ESC regulating function may
have failed. Functions that stabilize the ve­
hicle are no longer available . This could
cause the vehicle to swe rve and increase the
risk of sliding. Drive carefully to the nearest
authorized Audi dealer or other qualified
workshop and have the ma lfunction correct ­
ed.
- If the brake warn ing/ indicator light does
not go out after a few seconds and the park­
ing brake is re leased, or lights up while you
are driving, the flu id level in the brake fluid
reservoir is too low. If you believe that it is
safe to do so, proceed immediately at low
speed to the nearest authorized Audi dealer
or qualified repair facility and have the brake system inspected.
- Always keep in mind that after several brake
applications, you will need greater pressure
on the brake pedal to stop your vehicle. Do
not rely on strained brakes to respond w ith
maximum stopping power in critical situa­
tions . You must allow for increased braking
distances. The extra distance used up by
fading brakes could lead to an accident.
PARK /(® ) Electromechanical parking brake
The warning/indicator light monitors the elec ­
tromechanical parking brake.
If the indicator light- (USA models)/ .
(Canada models) turns on, the parking brake was
set .
- (USA m od els) • (Canada mod els) Ca u·
t io n: Vehi cle parked to o s teep
If the indicator light blinks and the message ap­
pears, the re is not enough brak ing power to keep
the vehicle from ro lling. The brakes have over­
heated. The vehicle could roll away even on a
sma ll incline.
Pr ess bra ke pedal to rele a se par kin g brak e
To release the parking brake, press the brake
pedal and press the button~ or start driving
Instrum ents an d ind ic a to r ligh ts
with starting assist at the same time
¢page 78.
Plea se r ele a se parki ng brake
To release the parking brake manually, press the
brake pedal and press the button~ at the same
t ime . The park ing brake only releases automat i­
ca lly if the d river 's safety belt is fastened .
Ill Parking brake!
If the liJ indicator light turns on and this mes ­
sage appears, there is a parking brake malfunc­
t ion. Drive to your authorized Audi dealer or
qualified workshop immediately to have the mal­
funct ion corrected .
_L Engine cooling system malfunction
A malfunction in the engine cooling system must
be repaired as soon as possible .
• Swit ch off engine a nd check c ool ant l eve l
If the indicator light turns on and the message
appears, the coolant temperature is too high or
the coolant level is too low.
.. Pull off the road .
.. Stop the vehicle.
.. Turn off the engine.
.. Check coolant level¢
page 222 .
.. Add coo lant if necessary¢ page 223 .
.. Continue driving only after the engine coolant
warning/indicator light goes out .
.. Contact your author ized Audi dealer for assis-
tance if necessary.
If the engine coolant level is correct, then the ra­
diato r fan may be the cause of the malfunction.
• Cool ant temper atu re too high! Pl ease let en ­
gine run with ve hicle s tat ionar y
If the indicator light turns on and the message
appears, let the engine run at id le for a few mi-
nutes to cool down. ..,.
15

9:::1: Engine oil pressure malfunction
The red engine oil pressure warning symbol re­
quires immediate service or repair . Driving with a
Low-oil-pr essure indication is Likely to inflict se­
vere damage to the engine.
• Switch off engine and check oil level
If the indicator lig ht t urns on and the message
appears, the oi l pressure is too low.
~ P ull off the road.
~ Stop t he ve hicle .
~ Turnoff the engine.
~ Check the engine oil level¢ page 220 .
~ If the engine oil leve l is too low, add engine oi l
¢ page 220. Make sure that the oil pressure
warning symbol. appears no longe r in the
display before you s ta rt driving ag ain.
~ If the engi ne oil leve l is correct and t he i ndic a­
t or lig ht still tur ns on, turn t he eng ine
off and
do not continue d riving . Seek p ro fessional as ­
s istance .
(D Tips
- The engine oil pressure symbol. is not
an indicator for a low engine 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.
- The yellow oil level warning indication
Ill
requires oil refill or workshop service with ­
out delay . Do not wait until the red oil
pressure warning. starts to flash before
you respond to the low oil level warning
Ill . By then , your engine may already have
suffered serious damage .
~ . Engine oil
• Please add oil immediately .
Add oil immedia tely ¢ page 21 8.
Ill Add oil max.XL. You may continue driving
Ad d the amount of oi l indicated in the dis play im­
mediately
¢ page 218.
Instruments and ind icator lights
~ - Steering lock
• Do not drive vehicle : Steering defective
The re is a ma lf u nct ion in the e lectro nic steer ing
l ock . Y ou canno t turn the ign ition on .
Do
not tow yo ur vehicle because it cannot be
stee red. See an a uthorized Audi dea ler or author­
ized Audi Se rvice Facility for ass istance .
m Steering lock : System fault Please contact
dealer
T he re is a ma lf u n ct ion in the e lectron ic s teeri ng
l ock .
Dr ive to an a uth oriz ed A udi dealer or au tho riz ed
A udi Se rvice Faci lity immed iately to h ave the
malfu nction corrected.
A WARNING
D o not tow yo ur vehicle when there is a mal­
f u nction in t he e lectro nic s teer ing lock - t his
i nc reases t he risk of an acc ident.
© -Engine start system
• Engine start system fault . Please contact
dealer
Do not switch the ignition off b eca use you may
not be able to switch it on again.
Dr ive to an authori zed A udi dealer or au tho riz e d
A udi Service Facility immed iate ly to have the
malfu nction corrected.
Ill Engine start sy stem fault . Please contact
dealer
-
T he re is a ma lf u nc tion in the e ngine s ta rting sys­
tem.
Drive to an author ized Audi dealer or autho rized
A udi Se rvice Fac il ity immed iate ly to have the
m alfu nction co rrected .
0 Air suspension
• Air suspension: System fault You can drive
slowly (max . speed 60 km/h )
The re is a ma lf u n ct ion tha t can res ult in re stric t-
ed drivi ng sta bi lity . ..,_
17

Instruments and indicator lights
USA models the warning light l'iJ comes on to­
gether with the warning 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 collision
and serious personal injury .
- If the warning light
l'iJ and the warning
light
11111> with the message Brake pads!
comes on in the instrument cluster display,
immediately contact your authorized Audi
dealer or qualified workshop to have all
brake pads checked or replaced if necessary.
EPC Electronic power control
App lies to veh icles: w ith gaso li ne engine
This warning/indicator light monitors the elec­
tronic power control .
The~ warning/indicator light (Electronic Power
Control) illuminates when you switch the ignition
on as a function check.
(D Tips
If this warning/indicator light illuminates
while you are driving, then there is a malfunc ­
tion in the engine electronics. Have the mal­
function corrected as soon as possible by your
authorized Audi dealer or qualified repair fa­
cility.
W Glow plug system
App lies to veh icles: w ith d iesel e ngi ne
The control light illuminates when the glow plug
system is active.
If the IJ indicator light illuminates, the glow
plug system is active . You should start the engine
immediately after the indicator light switches
off. The indicator light only illuminates for ap­
proximately 1 second if the engine is warm or if
the outside temperature is above 46 QF (8 QC).
l) •= USA mo del s only
20
(D Tips
- If the glow plug indicator light illuminates
while driving, there is an engine control
malfunction. The engine should be checked
immediately .
- If the indicator light does not illuminate at
all when switching the ignition on, there
may be a malfunction in the glow plug sys­
tem . The engine should be checked .
o Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) is part of
the On-Board Diagnostic (OBD II) system. The
symbol
¢'4 lights up when the ignition is switch­
ed on and will turn off after the engine has start­
ed and has settled at a constant idle speed. This
indicates that the MIL is working properly.
The warning light illuminates when there is a
malfunction in the engine electronic system.
Contact your authorized Audi dealer and have the
malfunction corrected.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
~ page 210.
For more information ~ page 28.
· ~ Diesel particulate filter
Applies to veh icles : wi th diese l eng ine a nd diese l part iculate
filter
II Particulate filter: System fault See owner's
manual
The diesel particulate filter requires regenera­
tion. To support the filter's self-cleaning func­
tion:
Drive for approximately 15 minutes with these­
lector lever in the S position at a minimum speed
of 37 mph (60 km/h) and an engine speed of ap­ proximately 2,000 RPM. The temperature in­
crease that will result from this can burn off the
soot in the filter. The symbol will switch off when
the cleaning is successful. .,.

.... N
0 <.J 'SI:
If the indicator light does not turn off, drive im­
mediately to an authorized Audi dea ler or author­
ized Audi Service Fac ility to have the malfunction
corrected.
_&. WARNING
Always adapt your speed to the current
weather, road and traffic conditions . You
should never disobey traffic laws in order to
follow driving recommendations.
(D Tips
For additional information on the diesel par­
ticulate filter, refer to
c:> page 196.
! 7l Engine speed limitation
A ppl ies to vehicles: with e ngin e s pee d l imitat ion
(II Engine speed maximum XXXX RPM
The engine speed is automatically limited to the
speed d isplayed in the instrument cluster. This
protects the engine from overheating.
The engine speed limitation deactivates once the
engine is no longer in the critical temperature range and you have released the accelerator ped­
al.
If the engine speed limitation was activated by
an engine control malfunction, the~ indicator
light also turns on . Make sure that the speed
does not go above the speed d isplayed . Drive to
an author ized Audi dealer or authorized Audi
Service Facility immediately to have the malfunc­
tion corrected.
<&,... Engine oil sensor
• Oil level! Sensor defective
If the symbol illuminates, contact your author­
iz ed Audi dealer and have the oil sensor inspect­
ed. Until you have this done, check the oil leve l
each time you refuel just to be on the safe side
<=>page 220.
f Engine warm-up request
~ n Please warm up engine
M v:, ....
Instruments and indicator lights
Fuel has entered the engine oil, either from low
outside temperatures or frequent short drives.
Drive until the eng ine is warm so that the fuel in
the engine oil will evaporate. Avoid high engine
speeds, full accelerating and heavy engine loads
when doing this .
Eli) Fuel tank system
IIJ Please refuel
If the indicator light turns on for the first time
and the message appears, there are about 2.6
gallons (10 liters) of fuel left in the tank .
D Fuel tank system malfunction! Contact deal­
er
There is a ma lfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediate ly to have the
malfunction corrected.
(D Tips
More information on refueling is available on
page
c:> page 210.
<9 Washer fluid level
g, rj iJlease refill washer fluid
Fill the washer fluid fo r the windsh ie ld washer
system and the headlight washer system* when
the ignition is switched off
c:> page 229.
• Windshield wipers
m Windshield wiper defective
There is a ma lfunction w ith the windshield wip­
ers .
Drive to an author ized Audi dealer or authorized
Audi Se rvice Facility immediate ly to have the
malfunction corrected.
~/0$ Defective light bulb warning
If the S:$ ind icator light turns on, a light has
failed. The message indicates the location of the
light. If the
BB indicator light also turns on, then
a rear fog light has failed. The position of the ..,.
21

.... N
0 CJ ' M I.Cl ......
-Inspection or oil change reminder: After a cer­
tain distance driven, a message appears in the
instrument cluster display each time the ign i­
tion is switched on or off¢
fig. 13. The remain­
ing distance or time is displayed briefly.
-Inspection or oil change due: If your vehicle is
due for an inspection or oil change or both, a
message appears briefly in the instrument clus­
ter display when sw itching the ign ition on or
off:
Inspection due! or Oil change due! or Oil
change and inspection due! .
Checking service intervals
You can check the remaining distance or time un­
til the next oil change or next inspection n the
Car menu. To do this, select: the
ICARI function
button
> (Car)* Systems control button > Service
& control > Service intervals .
Resetting the indicator
Your authorized Audi dealer or authorized Audi
Service Facility will reset the service interval dis­
play after performing service .
If you have changed the oil yourself, you must re­
set the oil change interval.
To reset the indicator, select: the
ICARI function
button
> (Car)* System control button > Service
& control > Service intervals. Turn the control
knob downward to
Reset oil change interval and
press the control knob.
(D Note
-Only reset the oil change indicator if the oil
was changed.
- Following the service intervals is critical to
maintain ing the service life and va lue of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex­
ceed the time for the next service.
- Calculating the t ime to the next oil change
i s interrupted when the vehicle battery is
disconnected.
If the vehicle is not driven for
a long period of time, check the mainte­
nance schedule so that you can follow the
maintenance interva ls.
Instruments and indicator lights
Head-up display
Applies to vehicles: with Head-up display
Fig. 14 Example : Indicato rs in the Head -up d isplay
Fig . 15 Instrument panel: head-up display knob
The Head-up display projects certain warnings or
selected information from the assistance sys­
tems* or navigation* on the windshield . The dis­
play appears w ithin the driver's field of vision.
Switching on/off
.. To switch the head-up display on or off, press
the knob~¢
fig. 15 .
Adjusting the height
The height of the display can be adjusted to the
individual driver .
.. Make sure you are seated correctly
r=!)page 126.
.. Turn the knob~ to adjust the disp lay .
Settings in the Infotainment system
.. Select: the I CAR I function button> (Car)* Sys­
tem
control button > Driver assistance > Head­
up display > Head-up display contents
or Dis-
play brightness. .,..
27