2016 AUDI A6 oil pressure

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Page 14 of 294

AUDI A6 2016 Owners Manual 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 th

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

Page 15 of 294

AUDI A6 2016 Owners Manual USA models:
Anti-lock braking system (ABS)
defective ./
¢page 19
Canada models:
Anti-lock braking system (ABS)
defective ./
¢page 19
Worn brake pads
¢page 19
Electromechanical p

Page 19 of 294

AUDI A6 2016 Owners Manual 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 in

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

Page 77 of 294

AUDI A6 2016 Owners Manual Switching the ignition on/off
If you would like to switch the ignition on with
out starting the engine, follow these steps:
.,. Press the
I STAR T ENGINE STOPI button with·
out

Switching the ignition on/off
If you would like to switch the ignition on with
out starting the engine, follow these steps:
.,. Press the
I STAR T ENGINE STOPI button with·
out pressing the brake pedal.
.,. To switch the ignition off, press the button
again. The needle in the tachometer moves into
the
OFF position.
The prewarming runs automatically in diesel
vehicles when the ignition is switched on.
Equipment that uses a lot of electricity is switch
ed off temporarily when you start the engine.
If the engine should not start immediately, the
starting process is automatically stopped after a
short time. Repeat starting procedure .
Start-Stop-System*
Note the information in c> page 79, Start-Stop
System.
A WARNING
- Never allow the engine to run in confined
spaces, because this increases the risk of as
phyxiation.
- Never turn off the engine before the vehicle
has come to a complete stop.
- The brake booster and power steering no
longer function when you stop the engine.
You must use more force when braking or
steering. Because you cannot brake and
steer as you usually would, this could lead
to accidents and serious injuries. These
functions are still active if the Start-Stop
System* has stopped the engine.
(D Note
Avoid high engine speed, full throttle, and
heavy engine load as long as the engine has
not reached operating temperature yet. You
could damage the engine.
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately. This re
duces unnecessary emissions.
-
Driving
{!) Tips
- After starting a cold engine, there may be a
brief period of increased noise because the
oil pressure must first build up in the hy
draulic valve adjusters. This is normal and
not a cause for concern .
- If you leave the vehicle with the ignition
switched on, the ignition will switch off af
ter a certain amount of time. Make sure that electrical equipment such as the exterior
lights are switched off.
Stopping the engine
.,. Bring your vehicle to a complete stop.
.,. Move the selector lever to the P or N position.
.. Press the
!START ENGINE STOP ! button
r:!>poge 74, fig. 80.
Steering lock
The steering locks when you turn the engine off
using the
I START ENGINE STOPI button and
open the driver's door. The locked steering helps
prevent vehicle theft.
Emergency off
If necessary, the engine can be switched off with
the selector lever in the R or D/S position. The
engine stops if you press and hold the
!START ENGINE STOP ! button at speeds below
6 mph (10 km/h) and press the brake pedal.
A WARNING
-Never turn off the engine until the vehicle
has come to a complete stop.
- The brake booster and power steering only
work when the engine is running.
If the en
gine is off, you have to use more force when
steering or braking. Because you cannot
steer and brake as you usually would, this
could lead to crashes and serious injuries.
- For safety reasons, you should always park
your vehicle with the selector lever in P.
Otherwise, the vehicle could inadvertently
roll away.
-
75

Page 192 of 294

AUDI A6 2016 Owners Manual Intelligent Technology
if the car is not driven regularly or only for short
trips with little use of the brakes.
If the brakes are not used frequently , or if corro
sion has

Intelligent Technology
if the car is not driven regularly or only for short
trips with little use of the brakes.
If the brakes are not used frequently , or if corro
sion has formed on the discs, it is advisable to
clean off the pads and discs by braking firmly a
few times from a moderately high speed¢& .
Faults in the brake system
If you should notice a sudden increase in brake
pedal travel, then one of the two brake circuits
may have failed ¢
&..
Low brake fluid level
Malfunctions can occur in the brake system if the
brake fluid level is too low. The brake fluid level
is monitored e lectronically .
Brake booster
The brake booster works with vacuum pressure
which is created only when the engine is running
c:;> &, .
Brake lining wear status
Brake lining wear may be checked by visual in
spection of the condition of the brake pads
through the openings in the wheel. If necessary,
the wheel may be removed for this inspection
c;> page 253, Replacing wheels .
A WARNING
-New brake pads don't have the best stop
ping power and must be "broken- in" dur ing
the initial 250 miles (400 km) . You can
compensate for this by pressing the brake
pedal more firmly. This also applies later
when new pads are installed.
- You should perform braking maneuvers for
the purpose of cleaning the brake system
only if road conditions permit. Other road
users must not be put at risk -you may
cause an accident!
-
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or
too often . This could cause the brakes to get
hot and diminish brak ing efficiency.
190
- Do not "ride the brakes" by resting your foot
on the pedal when you do not intend to brake. This may cause the brakes to over
heat, premature wear and increased stop
ping distance.
- Under certain climatic and operating condi
tions such as passing through water, driving in heavy rain or after washing the vehicle,
the effectiveness of the brakes can be re
duced. In winter, ice can accumulate on the
brake pads, linings, discs and drums. Care
fully apply brakes for a test. Brakes will dry
and ice coatings will be cleaned off after a
few careful brake applications .
- Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency .
Clean off accumulated salt coating from brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you in
stall a different spoiler, be sure the air flow
to the front brakes is not obstructed. Other
wise the brake system could overheat reduc
ing the effectiveness of the entire brake sys
tem.
- Fa ilure of one brake circuit will impair the
braking capability resulting in an increased
stopping distance. Avoid driving the vehicle
and have it towed to the nearest Audi dealer
or qualified workshop.
- Never let the vehicle roll to a stop with the
engine shut off.
- If the brake booster is not working, the
brake pedal must be pressed considerably
harder to make up for the lack of booster
assistance.
Electromechanical
steering, dynamic
steering
The electromechanical steering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed.

Page 222 of 294

AUDI A6 2016 Owners Manual Checking and Filling
@ 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 en
gine at regula

Checking and Filling
@ 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 en
gine at regular intervals, preferably each
time you refuel, and always before going
on a long trip.
- If you have the impression your engine con
sumes excessive amounts of oil, we recom
mend that you consu Lt your Audi dealer to
have the cause of your concern properly di
agnosed . 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
The engine oil level can be checked in the Info
tainment system
Fig. 187 I n fo tai nme nt: oil level indic a to r
• Park your vehicle on a level surface.
" Shut the engine off when it is warm .
.. Switch only the ignition back on.
.. Wait approximately two minutes.
" Select : the
ICAR I function button > (Car)* Sys
tems
control button > Service & control > Oil
level.
.. Check the oil level in the Infotainment system
display ¢
fig. 187. Add engine oil if the bar of
the oil level indicator is near "min"
¢page 220.
Depending on the way the vehicle is driven and
the operating conditions, oil consumption can be
up to 1/2 quart per 600 miles (0 .5 liter per
220
1,000 km). Consumption may be higher within
the first 3,000 miles (5,000 km).
Because of this, the engine oil level must be
checked regularly. It would be best to check each
time you refuel your vehicle and before long
drives.
{!) Tips
The oil level indicator in the instrument clus
ter display is only an informational display. If
the oil level is too low, a minimum oil warning
appears in the instrument cluster. Add oil. If
the hood was opened, the current oil level is
shown in the instrument cluster the next time
the ignition is switched on.
Adding engine oil 'l:::1:
Fig. 188 En g in e compartment : cover on the engine oil fill
er neck
Before you check anything in the engine compart
ment,
always read and heed all WARNINGS
¢ .&. in Working in the engine compartment on
page 216.
"Shut the engine off .
"Unscrew the cap~ to the engine oil filling
hole
¢ fig. 188, ¢page 218, fig. 186.
.. Carefully top off with 0.5 quarts (0.5 liters) of
the appropriate oil ¢
page 218.
.. Check the oil level again after two minutes
¢ page 220, Checking the engine oil level.
"Top off the oil again, if necessary.
"Screw the cap back on the filling hole.
_&. WARNING
- While topping off, the oil must not come in
contact with hot engine parts - fire hazard!

Page 225 of 294

AUDI A6 2016 Owners Manual • Park your vehicle on a level surface.
• Switch
off the ignition.
• Read the engine coolant level from the coolant
expansion tank¢
fig. 189, ¢ page 218,
fig. 186.
With a co

• Park your vehicle on a level surface.
• Switch
off the ignition.
• Read the engine coolant level from the coolant
expansion tank¢
fig. 189, ¢ page 218,
fig. 186.
With a cold engine, the coolant level
should be between the "min" and "max" mark
i ngs . When the engine is warm, the level may
be s light ly above the "max " marking.
The location of the coolant expans ion tank can be
seen in the engine compartment illustrat ion
¢pag e 218.
To obtain an accurate reading, the engine must
be sw itched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coo lant level is too low, the warning
light in the Auto-Check System
c:> page 15 wi ll il
luminate until you add coolant and the level has
been restored to normal. Even though there is an
e lectric coolant level sensor, we still recommend
you check the coolant level from t ime to t ime.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cooling
system should be inspected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant.
In a
sealed system, losses can occur only if the
boiling point of the coo lant is exceeded as a re
sult of overheat ing.
A WARNING
The cooling system is under pressure and can
get very hot . Reduce the risk of scalding from
hot coolant by following these steps.
- Turn off the eng ine and allow it to cool
down.
- Protect your face, hands and arms from es
caping fluid and steam by covering the cap
with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise direction while applying
light, downward pressure on the top of the
cap.
Checking and Filling
-To avoid being burned, do not spill anti
freeze or coolant on the exhaust system or
hot engine parts. Under certain cond itions,
the ethylene glycol in engi ne coolant can
catch fire.
(D Note
Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Add ing radia
tor repair fluid may adversely affect the func
tion and performance of your cooling system
and could result in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine compart
ment,
always read and heed all WARNINGS
¢.&. in Working in the engine compartment on
page 216.
• Requ irement: There must be a residual amount
of coolant in the expansion tank
c:> (D .
•Turnoff the engine .
• Let the engine cool down.
• Place a thick rag over the coolant expans ion
tank
c:>p age 222 , fig. 189 and carefully twist
the cap counter-clockwise
c:> _& .
• Add coo lant mixed in the correct ratio
c:> page 222, Coolant up to the MAX marking .
• Make sure that the fluid level remains stable.
Add more coolant if necessary.
• Twist the cap on again
tightly.
Replacement engine coolant must conform to ex
act specifications
c> page 222, Coolant.
We recommend using only coolant additive Gl2+
+ , Gl3
or in an emergency Gl2+. Do not use a
different additive. In an emergency use plain wa
ter until you can get the correct additive and can
restore the correct ratio. This should be done as
soon as possible.
If you have lost a considerable amount of coo l
ant, then you should add cold antifreeze and cold
water only when the engine is co ld.
Always use
new engine coolant when refi lling.
223

Page 236 of 294

AUDI A6 2016 Owners Manual Wheels
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown

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