2016 AUDI A4 engine

9:::1: Engine oil pressure
The red engine oil pressure warning symbol re­
quires immediate service or repair . Driving with a
low-oil-pressure indication is likely to inflict se ­
vere damage to the engine.
• Turn off engine! Oil pressure too low
If the indicator lig ht t urns on and the message
appears, the oi l pressu re is too low.
~ P ull off the road.
~ Stop t he vehicle .
~ Turnoff the engine.
~ Check the engine oil level¢ page 207 .
~ If the engine oil leve l is too low, add engine oi l
¢
page 207 . Make sure that t he 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 cor rect and t he i ndic a­
tor lig ht still tur ns on, turn t he eng ine
off and
do not continue driving . 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 level
• WARNING: Please add oil immediately
If the indicator lig ht and the message ap pear,
a dd engine o il i mm edi ate ly
¢page 205.
;:; Ill Add oil, max XX XX l. You may cont. driv .
0
~ When the symbol II and driver message appea r, ,....,
~ add the amount of oi l appea ring in the display at
:;;: the next opportunity¢
page 205. ,....,
Instruments and ind icator lights
-L Eng ine cooling system
A malfunction in the engine cooling system must
be repaired as soon as possible .
• Turn off engine and check coolant level
If the indicator light turns on and the message
appea rs, the coo lant tempe rat ure is too high o r
t h e coo lant leve l is too low.
~ Pull off the ro ad.
~ Stop the vehicle.
~ Tur noff th e engine.
~ Check coolant leve l¢ page 209 .
~ Add coolant if necessary¢ page 210.
~ Continue dr iv ing only afte r the e ngine coolant
warni ng/ indicator light goes out .
~ Contact your authorized Audi dealer for assis-
t ance if necessa ry.
If the engi ne coo lant level is correct , then t he ra ­
dia to r f an may be the cause of t he mal func tion.
• Coolant temperature! Let engine run with
vehicle stationary
If the indicator lig ht tur ns on and the messa ge
appea rs, let the engine run a t idle for a few mi ­
nutes to c ool down.
A WARNING
-- If yo ur vehicle should break down for me ­
cha nica l o r ot her reasons, park at a safe dis­
t ance from mov ing t raff ic, t urn off t he e n­
g in e a nd turn on the haz ard warning lights
¢ p age S O, Em ergency fla she rs.
- N ever open t he hood if you see o r hear
s te am or coo lant esca p in g fr om th e engine
co mpartm ent - you ris k being scald ed . W ait
un til yo u can no longe r see or hear steam or
coo lant escapin g.
- T he engine co mpart ment of an y vehicl e is a
d anger ous are a. B efore y ou perfo rm any
wo rk in the eng ine com partment, t urn of
the eng ine a nd a llow it to cool. Follow t he
warn ing stickers
¢page 203.
(D Note
Do not con tinue dr iv in g if the . symbol i llu-
minates. The re is a malf u nction in the engine
IJi,,,
17

Instruments and indicator lights
cooling system -you could damage your en­
gine .
~- Steering column lock
• Steering defe cti ve! Do not dri ve vehicle!
If the indicator lig ht t urns on and the message
appears, there is an electronic steering column lock malf unction . You cannot switch the ignition
on.
Do
not tow your vehicle because i t cannot be
steered. Seek professional assistance.
£II S te erin g lo ck: C ontact dealer!
If t he indicator light turns on and the message
appears, there is an electro nic steer ing colum n
lock malfunct ion.
Drive to your authori zed Aud i dea ler immediately
to have the malfunct ion corrected.
A WARNING
Your vehicle must not be towed in the eve nt
of a malfunction i n the elect ronic steering
co lumn lock be ca use it cannot be steered d ue
t o the locked steering. If it is towed wi th t he
steering locked, the re is the r isk of an acci ­
dent .
©-Ignition lock
• Ignit ion lock defecti ve. Contact dealer!
If the indicator lig ht tu rns on and the message
appears, do
not switch the ign ition off because
you may not be ab le to switch it on again .
D rive to you r autho rized Aud i dea le r i mmedia tely
to have the malf unct ion corrected.
On ve hicles w ith convenience key*, the engine
should not be switched off using the
I S T AR T ENG IN E STOP I button because the en­
g ine ca nnot be sta rted again after the ignition
has been switched off .
(D Tips
The symbol's appearance mig ht be diffe re nt
in some mode ls .
18
r;. I[/; Electronic Stabilization Control (ESC)
If the Dl ind icator light blinks while driving , the
ESC o r ASR (A nti-Sl ip Regulation) is act ively regu­
l ating .
If the
G1 ind icator light turns on, the system has
switched the ESC off. In t his case, you can switch
t h e ign it io n off and then on to swi tch the ESC on
again. The indicator light t urns off when the sys­
tem is functioning fu lly .
If the . indicator light turns on, ESC was re­
stri cted or sw itched off using the
I.$ O FF I butto n
qpage 177 .
Stabilization cont rol (ESC / ABS ): Fault! See
owner' s manual
If the indicator l ight DJ and the ABS indicator
li ght
[IlJ (USA models) ;El] (Canada mode ls)
turn o n and the message appears, the ABS or
electron ic different ial lo ck is malfunctioning.
This also causes the ESC to malfunc tion. The
brakes st ill function with the ir norma l power, but
ABS is not active .
D rive to your au thori zed Audi dealer immediate ly
to have the malfunc tion cor rected .
Fo r more info rmation about the ESC
q page 177 .
A WARNING
If the 11111 (USA models)/ . (Canada mod­
e ls) br ake system indicator light turns on to­
gether with the ABS and ESC ind icator lights,
the ABS/ESC regulating function may have
failed. F unctions that stabilize the vehicle are
no longer ava ilab le. This could cause the vehi­
cle to swerve and increase the risk of sliding. Drive carefully to the nearest authorized Aud i
dealer and have the malfunction corrected .
(D Tips
For additional informat ion on ESC and ABS,
r efer to
q page 177.

Instruments and indicator lights
(0) Worn brake pads
EiJ Brake pads!
If the warn ing light illum inates, immed iate ly
contact your authorized A ud i dealer o r qualified
wo rkshop to have all brake pads inspected. O n
USA models the wa rni ng lig ht
EiJ comes on to ­
gethe r wi th the war ning l igh t
1111 . Both sets of
b rake pads on an ax le m ust always be rep lace d at
the same time .
A WARNING
Driv ing with bad bra kes can ca use a co llision
and ser ious personal in jury.
- If the wa rning light
EiJ and the warning
light
11111 ) w ith the message Brake pads !
comes on in the instrument cl uster display,
i mmediately contact your author ized Audi
dealer or qualified workshop to have all
bra ke pads checked o r rep laced if necessary.
EPC Electronic power control
This warning/indicator light monitors the elec­
tronic power control .
-
The~ warni ng/indicator light (Electronic Powe r
Control) ill uminates when you switch the ign ition
on as a function check.
(D} Tips
If this wa rning/in dicator light ill uminates
wh ile you are driving, then there is a mal func­
tion in the eng ine electron ics. Have the ma l­
function corrected as soon as possib le by yo ur
author ized A udi dealer or a qualified repair fa­
cility .
0 Malfunction Indicator Lamp (MIL)
The Malfunc tion Ind ica tor Lam p (M IL) is part of
the On-Boa rd Di ag nosti c (O BD II) system. The
symbo l
('4 lights up whe n the ignition is swi tch ­
e d on and wi ll turn off after the engine has sta rt·
e d and has sett led at a constant idle speed . This
i n dicates that the MIL is working p roperly.
l ) - : USA mode ls o nly
20
The wa rning lig ht ill uminates w hen the re is a
malfunction in the engine electronic system.
Contact yo ur aut ho rized Aud i dea le r and have the
malfunction corrected.
An impro per ly closed fue l filler cap may also
ca use the MIL light to illuminate ¢
page 200 .
For more info rm ation c::> page 29 .
!?) Engine speed limitation
App lies to vehicles : wi th engine speed limitatio n
lfl Do not exceed max. engine speed of XXXX
rpm
The lfl symbo l illu min ates when the re is an en­
gine co ntro l ma lf u nct ion. The~ indica tor ligh t
in the instrument clus ter also illum ina tes . T he
engine spee d is limited to the s peed displayed in
the d river info rmation system. Keep in mind t hat
the engine speed w ill not exceed the value dis ­
played in the driver information system, for ex­
amp le w hen downshifting.
D rive to your authorized A udi dealer immediate ly
to have the mal function cor rected .
~~. Engine oil sensor
• Oil level! Sensor defective
If the symbol illuminates, contact your author ­
i zed Audi dealer and have the oil sensor inspect­
ed. Until yo u have this done, chec k the oi l level
each time you refuel just to be on the safe side
¢ page 207.
Bu Tank system
Ii] Please refuel
If the indicato r light turns on for the first time
and t he message appea rs, the re are about
2.1- 2.4 gallons (7 • 9 lite rs) of fuel left in the
ta nk. Time to refuel¢
page 200 .
Ii] Fuel tank system malfunct ion! Contact deal -
er ..,.

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Driver information
system
Introduction
The Driver information display inside the instru­
ment cluster provides you, the driver, with im­
portant information.
Fig. 7 Instrument cluster: ce nter display
Fig. 8 Wipe r lever: contro ls for the menu display
Center display
With the ignition on, the display in th e Driver In­
formation System shows the following informa­
tion :
- CD* inserted or Radio* station set
- Outs ide temperature*: At temperatures below
41 °f (+S
0
(), a snowflake symbol appears in
front of the temperature display¢ ,1,. .
- Warning if one of the doors, front lid or engine
compartment lid is not closed.
Additional functions
You can open the following functions in the Driv­
er Information System display by pressing the
I RESETI button¢ fig. 8 one or more t imes :
Digital speedometer*
Tire pressure monitoring*
¢pag e235
Driver in forma tion system
Trip computer* ¢page24
Efficiency program* ¢page26
Service interval display ¢page28
Speed warning ¢page Bl
Gearshift selector posit ions Au -i=>page 91
tomatic transm ission
Adaptive cruise control*
¢ page 98
Auto Check Control
Some functions and vehicle components are
scanned for their operating status when you
switch the ignition on and while you are driving. Malfunctions or required service procedures are
signaled audibly and indicated by red and yellow
illum inated symbols and reminders in the dis­
play.
A WARNING
--
- Never rely exclus ively on the outside tem­
pe rature display to determine if a road sur­
face is icy or not. Keep in m ind that road
surfaces, especially bridges and overpasses,
could be ice covered and slippery even at an
outside temperat ure above 41 °f (+S °C).
- Always remember, even if the "snowflake"
symbol (ice warning) does not appear in the
display, black ice could be on the road.
- Always reduce your speed and dr ive with
specia l care in cold weather conditions when
the chance of encountering icy road surfaces
increases.
(j) Tips
If the vehicle is stationary, or if you are driv­
ing at a very low speed, the temperature
shown in the disp lay might be slightly higher
than the actual outside temperature. This is
caused by the heat being radiated from the
engine.
23

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vehicle, particularly the engine, and main­
taining its value. Even if the mileage driven
is low, the maximum period of one year
from one service to the next must not be ex­
ceeded.
@ Tips
The informat ion in the Service Rem inder re­
mains stored even when the vehicle battery is
disconnected.
On Board Diagnostic
System (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) ¢..ift in the
instrument cluster is part of the On-Board Diag­
nostic (OBD II) system .
The warning/indicator light illuminates when the
ignition is switched on and goes out after the en­
gine starts and the idle has stabilized. This indi­
cates that the MIL is working properly .
If the light does not go out after the engine is
started, or illuminates while you are driving, a malfunction may exist in the engine system.
If
the light illuminates, the catalytic converter
could be damaged.
Continue driving
with reduced power (avoiding
sustained high speeds and/or rapid accelera­
tions) and have the condition corrected. Contact
your authorized Audi dealer.
If the light illuminates, the electronic speed lim­iter may also be malfunctioning. For more infor­
mation
¢ page 29, Electronic speed limiter.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate ¢
page 200.
Driver in forma tion system
On-Board Diagnostics
Fig. 17 Loca tion of Data Link Connector (DLC)
On-Board Diagnostics monitors the components
of your emission control system. Each monitored
component in your engine system has been as­
s igned a code. In case of a malfunction, the com­
ponent will be identified and the fault stored as a
code in the control module memory.
The MIL light may also illuminate if there is a
leak in the on-board fuel vapor recovery system.
If the light illuminates after a refueling, stop the
vehicle and make sure the fuel f iller cap is prop­
erly closed
¢ page 200.
In order to make an accurate diagnosis, the stor­
ed data can only be displayed using special diag­
nostic equipment (gener ic scan tool for OBD).
In order to connect the special d iagnost ic equip­
ment, push the p lug into the Data L ink Connector
(DLC). The DLC is located to the right of the hood
release
¢ fig. 17.
Your authorized Audi dealer or qualified work­
shop can interpret the code and perform the nec­
essary repair.
.&, WARNING
Do not use the diagnostic connector for per­
sonal use. Incorrect usage can cause malfunc­
tions, which can increase the risk of a co lli­
sion!
Electronic speed limiter
Your vehicle may be factory equipped with tires
that are rated for a maximum speed of 130 mph (210 km/h). This is may be less than the maxi­
mum speed of your vehicle . To reduce the risk of .,.
29

Driver information s ystem
sudden tire failure and loss of contro l if the vehi­
cle is operated at excessive speeds, your vehicle has an electronic speed limiter . The e lectronic
speed limiter prevents your veh icle from go ing
faster than the t ire speed rating. For more infor­
mat io n
¢ page 217 .
If the engine contro l unit receives faulty vehicle
roadspeed signa ls, the Malfunct ion Indicator
Light (MIU
¢'4wil l illuminate. If this occurs, con­
tact the nearest author ized Audi dealer for assis ­
tance .
A WARNING
Always observe the posted speed limits and
adjust you r speed to s uit prevailing road, traf­
fic and we athe r con ditions. Never drive you r
vehicle fas ter than the maximum speed rat ing
of the tires installed.
30
-

Opening and clo sin g
- If the power locking system should fail, you
can still open the fuel tank flap in an emer­
gency ¢
page 202.
-You are well advised not to keep val uables
inside an unatte nded vehicle, v is ible or not.
Even a properly locked vehicle cannot pro­
v ide the security of a safe.
- If the LED in the upper edge of the driver's
door panel comes on for about 30 seconds
after t he vehicle is locked, there is a mal­
funct ion in the power lock ing or the anti­
theft warning system . Have the malf unct io n
cor rected by an authorized Audi dealership
or q ualified repair facility.
Key set
F ig . 18 Key set
m 0 ±
~
@ Remote control key with mechanical key
You can centrally lock and unlock your veh icle
and start the engine w it h the master key with re­
mote cont rol. A mecha nical key is i nteg rated in
the master key ¢
page 33.
@ Eme rgency key
The emergency key is not intended for constant
use . It shou ld only be used in an emergency, for
example, in place of the ign ition key
¢
page 82 . Keep it in a safe place and do not
car ry it on yo ur key r ing.
Key replacement
If you lose a key, contact your author ized Audi
dealer immediately to have the
lost key disab led .
Be s ure to bring all your keys with you .
32
Number of keys
You can chec k the number of assigned keys to
your vehicle
r=;, page 11 . This a llows yo u to make
sure yo u have received all of the keys when you
purchase a used vehicle .
Data in the master key
During driving, serv ice and maintenance-re levan t
da ta is cont inuo usly stored on your master key.
You r A udi service adviser can read out this data
and te ll yo u about the work you r vehicle needs.
This applies also to veh icles with convenience
key* .
Personal comfort settings
If two people use one vehicle, it is recommended
that each person always uses "their own" maste r
k ey . W hen the ignit ion is turned off or when the
vehicle is loc ked, personal conven ience settings
for the following systems are stored and as­
signed to the remote master key.
- Climate control
- Power locking system
- Sea t memory *
- Park ing system*
-Adaptive cr uise control*
- Side assist*
- Drive select*
The stored settings are a utomat ica lly rec alled
when you unlock t he vehicle, when yo u ope n the
doo rs or when yo u turn on the ignition.
A WARNING
- Do not leave you r vehicle unattended with
the key in the ignition lock. Entry by una u­
thor ized persons could endanger you or re­
sult i n theft o r damage the vehicle .
- Do not leave childre n unattended i n the ve­
hicle, especially with access to vehicle keys .
Ungua rded access to the keys provides chil­
dren t he oppor tunity to start the engine
an d/or activa te ve hicl e sys tems s uch as the
powe r windows etc. Unsupervised ope ration
of any vehicle system by children c an res ult
in ser ious injury.
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.. Pull the cover cap out of the opening q fig. 25 .
.. Insert the key in the inside slot and turn it all
the way to the right (right door) or left (left
door).
Once the front passenger's door/rear doors* have been closed, you cannot open them again from
the outside. The door can be opened from the in­
side by pulling the door handle. If the child safe­
ty lock in a rear door* is activated, you must f irst
pull the door handle on the inside . Then you can
open the door from the outside .
A WARNING
Read and follow all WARN INGS q .&. in Gener­
al description on page 31.
@ Tips
After the ign ition is switched on, the power
locking system sw itch and the unlocking but­
ton fo r the rear lid
c:5 in the door are ena­
bled.
Electronic immobilizer
The immobilizer prevents your vehicle from being
started by unauthorized persons .
Inside the key there is a computer chip . This chip
automatically activates/deact ivates the electron­
i c immob ilizer.
Applies to vehicles with ignition lock :
The electronic immobilizer deactivates automati­
cally when you insert the remote control key into
the ignition lock .
It activates again automatically
when you remove the remote control key from
the ignition lock .
Applies to vehicles with convenience key:
If the remote control key is located inside the ve­
h icle and you press the
I START ENGINE STOPI
button, the electronic immobilizer deactivates
automatically . If you switch the ignition off and
remove the remote control key from the vehicle,
the electronic immobi lizer act ivates again auto­
matica lly.
Open ing and closing
A WARNING
-
Always take the key with you when you leave
the vehicle . The key can d isarm the electronic
engine immobilizer and permit an unauthor­
iz ed person to start the engine and enable op­
e ration of the vehicle systems such as power
window or power s unroof leading to serio us
personal injury .
{t) Tips
-The vehicle cannot be started if an unau­
thorized key is used. The vehicle may not
start if another radio device such as a key
for another vehicle or a transponder is lo­
cated on the key ring.
- For Declaration of Compliance to United
States FCC and Industry Canada regulations
~page 261.
Luggage compartment
lid
Opening /closing rear lid
Fig. 26 Rear lid: handle
Fig. 27 Sedan d rive r's doo r: remote rear lid release•
37