2016 AUDI A4 check engine

..... N
0 ::..:: co ..... ..... ~ Open the engine hood¢ page 203.
~ Open the cover on the positive pole~ fig. 186 .
~ Connect the charger connectors accord ing to
the instructions to the
ju mp st a rt b olts . (Bolts
under the cover= "positive", Bo lts with hex
head = "negative") .
~ Only now plug the mains lead for the charging
equipment into the wall outlet and turn it on
~ & -
~ Ma ke s ure t he c harging rate i s not ov er
30 amp s/14 .8 Vo lt.
~ When the battery is fu lly charged: Turn the
charging equipment off and remove the mains
lead from the wall outlet.
~ Now remove the clamps for the charging equip-
ment.
~ Close the cover on the posit ive pole .
~ Close the hood ~ page 203.
A discharged battery can freez e at temperatures
of only 32 °F (0 °C) . Allow a frozen battery to
thaw completely before attempt ing to charge it
~ _& . However, we recommend not us ing a
thawed batte ry again because the battery casing
can be cracked due to ice format ion and can leak
battery acid.
Battery charg ing (Maximum charging rate of
30 amps /14.8 Volt )
When cha rging at low vo ltages (e .g . with a tric k­
l e char ger ),
the battery cables do not have to be
disconnected first. The battery caps should
not
be opened when charging a battery.
It is not necessary to remove the batte ry from
the luggage compartme nt.
F a st cha rging the battery (charg ing rate
above 14.8 Volt s)
For techn ical reasons do not use a battery charg­
e r that uses voltage greate r than 14 .8 Volts to
charge your vehicle 's battery.
A WARNING
Charging a battery can be dangerous .
- Always follow the operating instructions
provided by the battery charger manufactur­
er when charging your battery .
Check ing and Filling
-Never charge a frozen battery . It may ex­
plode because of gas trapped in the ice. Al­
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery hous ing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area. Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat­
ed by the battery is explos ive.
- To reduce the danger of explosion, never
connect or disconnect charger cables while
the charger is operating .
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
technician w ith the proper equipment.
- Battery acid that may spill during charging should be washed off w ith a solution of
warm water and baking soda to neutralize
the acid .
@ Note
Never use a fast charger as a booster to start
the engine . This will seriously damage sensi­
tive electronic components, such as control units, re lays, radio, etc., as well as the battery
cha rge r.
Battery replacement
The new battery must have the same specifica­
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
r esponsib le for distr ibut ing the e lectrical energy
t hr oughou t your vehicle ~
page 182. The intelli­
gent energy management system will keep the
engine battery charged better then vehicles with ­
out this system. To make sure the additional
electrical energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu­
facture only (the same as those installed at the
t ime your vehicle was delivered) . Specifications
are listed on the battery housing . Your author­
ized Audi dealer must code the battery in the en-
ergy managemen t system to enable you to use
ll>
215

Checking and Filling
the energy m anag ement functions correctly after
replacing the battery.
I f it is not poss ible to use a battery of th is type,
the new battery must have the same capacity,
voltage (12 -volts), amperage, construction and
p lug sealing .
When insta lling the batte ry, make sure the igni­
tion and all elec trical consumers are turned off.
CD Note
Ma ke sure the ventilation hose on the side of
t he batte ry is connected, othe rw ise f umes or
bat tery acid can lea k out.
@ For the sake of the environment
Because of the prob lem of proper dispo sal of
a ba tte ry, we recommen d your author ized
Audi de aler change the battery fo r you . Bat­
teries contain su lf u ric acid and lea d and must
always be disposed of properly in compliance
w ith all environmental regu lations. D ispos ing
of vehicle batteries improperly is very danger­
ous to the env ironment.
Windshield/headlight*
washer container
F ig. 1 87 Engine co mpar tment : Cove r o n th e w ind shie ld
and head lig ht ' was her fluid conta iner
The washer fl uid containe r is m arked with the
symbo l
O on its cap ~ fig. 187, ¢ page 205,
fig . 181 .
.,. Befo re yo u check anything in the engine com­
partment,
alway s read and heed all WARN­
INGS ¢,& in Working in the engine compor t­
ment on page 203.
216
.,. Lift the filler cap tongue to add washe r fl uid.
You ca n fill the conta iner to the top.
.,. Press the cap back onto the filler neck after fill -
ing the container .
You can find the reservoir
capacit y in the table in
~ page 256.
Clean water should be used when filling up . If
possib le , use soft wate r to prevent scaling on the
washer jets. Always add a glass cleaner solution
(with frost p rotection in the winter) .
CD Note
Do not mix engine coolant antifreeze or any
other additives to fill up the winds hield wash­
er reservoir.

Emergency situations
Emergency situations
General
This chapter is intended for trained emergency crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
CD Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine con be started by con­
necting it to the battery of another vehicle.
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently largecross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for
safe
handling of your vehicle's battery.
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A discharged battery can freeze at tempera­
tures just below 32 °F (0 °C). Before con­
necting a jumper cable, you must thaw the
250
frozen battery completely, otherwise it could explode.
- Do not allow battery acid to contact eyes or
skin. Flush any contacted area with water immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion.
- Vehicle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery.
- The voltage of the booster battery must also
have a 12-Volt rating. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah" rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen . The battery
case may have be weak­
ened .
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
~page 203.
CD Note
-Applying a higher voltage booster battery
will cause expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.
@ Tips
The discharged battery must be properly con-
nected to the vehicle's electrical system. .,..

Emergency situations
-The battery cell locking screws must be
tightened securely.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c:> page 203.
(D Note
Improper hook-up of jumper cables can ruin
the generator.
- A lways connect POSITIVE(+) to POSITIVE
(+), and NEGATIVE(-) to NEGATIVE(-)
ground post of the battery manager control
unit.
- Check that a ll screw plugs on the battery
cells are screwed in firmly. If not, tighten
plugs prior to connecting clamp on negative
battery terminal.
- Please note that the procedure for connect­
ing a jumper cable as described above ap­
plies specif ically to the case of your vehicle
being jump started. When you are giv ing a
jump start to another vehicle, do
not con­
nect the negative(-) cable to the negative
(-) terminal on the discharged battery @
c:> fig. 210. Instead, securely connect the
negative (-) cab le to either a solid metal
component that is firm ly bolted to the en ­
gine block or to the engine block itself. If
the battery that is being charged does not
vent to the outside , escap ing battery gas
could ignite and explode!
Towing with a tow truck
General hint s
Your Audi requires special handling for towing.
The following information is to be used by com­
mercial tow truck operators who know how to op­
erate the ir equipment safely.
-Never tow your Audi, towing will cause dam­
age to the engine and transmission.
- Never wrap the safety chains or winch cables
around the brake lines .
- To prevent unnecessary damage, your Audi
must be transported with a flat bed truck.
252
-To load the vehicle on to the flat bed, use the
towing loop found in the vehicle tools and at­
tach to the front or rear anchorage
c:> page 252 and c:> page 253.
A WARNING
A veh icle being towed is not safe for passen­
gers . Never allow anyone to ride in a vehicle
being towed, for any reason .
Front towing loop
Do not install the front towing loop until it is
needed .
Fig. 211 Front bumper: removing th e cover cap
Fig. 212 Front bumper: s crew ing in t he towing loop
The towing loop fits into the threaded hole locat­
ed on the right side of the front bumper and cov­
ered by a small cover when not in use .
.,. Remove the towing loop from the vehicle tool­
ki t
c:> page 23 7.
... Press the cover in by applying short strong
pressure to the bottom part to release it from
the bumper
c:> fig. 211.
... Screw the towing loop tightly into the threaded
hole as far as it will go
c:> fig. 212 and tighten it
with the wheel wrench. ..,.

Emergency situations
Raising the vehicle
Lifting with workshop hoist and with floor
jack
Th e vehicle may only b e lift ed at the lifting
poin ts illust rated.
F ig .. 216 F ro nt lift ing po int
F ig. 217 Rea r lifti ng po int
.,. Read and heed WARNING ¢ A-
.,. Locate lifti ng po ints ¢ fig. 216 and ¢ fig. 217 .
.,. Adjust lifting arms of wo rkshop hoist or floor
jack to match veh icle lifting points .
.,. In se rt a rubb er pad between t he floor jack/
wor kshop hoist a nd the lif ting poin ts .
If you must lift your vehicle with a floor jack to
work underneath, be sure the vehicle is safely
supported on stands intended for this purpose .
Front lifting point
The lift ing po int is located on the floo r pan re in­
forcement about at the same leve l as the jack
mo unt ing point ¢
fig. 216 . Do not lift the vehi­
cle at the vertical sill rei nforcement.
Rear lifting point
The lift ing po int is located on the vertica l re in­
for cement of the lower sill fo r the on board jack
¢fig. 217.
254
Lifting with vehicle jack
Refer to ~ page 242.
A WARNING
-To re duce the r is k of serious injury and vehi ­
cle dama ge .
- Always lift the vehicle o nly at the special
workshop hois t an d floor jack lift points il­
l ustrat ed
~ fig. 216 and ~ fig . 217.
- Failur e to lift the v ehicle at these points
could ca use the veh icle to tilt or fall from
a lift if the re is a cha ng e i n ve hicle weigh t
dis tribu tion and ba lan ce . T his mig ht hap­
p en, for exa mple, whe n he avy co mpo ­
n en ts such as the engine block o r tr an s­
mission are removed.
- W hen re m ov in g h eavy co mponen ts like
these, an cho r veh icle to hoist or ad d co rre ­
spond ing weights to ma inta in the ce nter of
gravity . Othe rw ise, the vehicle mi ght t ilt o r
slip off t he hoist, causing serious pe rsonal
in jur y.
(D Note
- Be aware of the fo llowing po ints befo re lift ­
ing the vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine oil pan, the transmission housing, the front
or rear axle or the body side members .
This could lead to serious damage .
- To avoid damage to the underbody or
chassis frame, a rubber pad must be in­
serted between the floor jack and the lift
points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity of
the hoist.
- Before driving over a workshop hoist , en­
sure that there is sufficient clearance be­
tween the hoist and low parts of the ve­
h icle.

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.... I.Cl U"I
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Technical data
Vehicle identification
F ig . 2 18 Vehi cle Ident if icatio n Number (VlN) plate : loca·
t ion on dr iver 's side dash pane l
XXXXX XX -X -XX XX X XX XX
CD+ ~t :1:: xxxxxxxx xx x xx xxx xxx
TVP/fffl XXX XXX
XX XXXXXXX XX X X xx
XXX KW XXX
®i ~:J ·f lfils~~ XXXX XXX XXX
®-+ ~ N:a=i~l xxxx ; xxxx xx x ; xx
II. · AUSS, I OPTIONS
,__ __
EO A 7D 5
2E H J0Z
3FC
F O A
TL 6 3KA
lXW
7T6 C V7
3L4 lS A
4UB 6XM 5SG
llB lA S
S M U 7Xl
9G3 OG7 0YH
SE H UlA X 98
803 908 824
7 K0 4 X3 2K2
4KC 3Y0 413
7G8 01 A
5RW
18A
0JF
QZ7
020
502
4G0
XX . X XX X XX X XXXX
Fig. 219 Th e ve hicle ident ifica tion label: ins ide the l ug·
gage co mpartment
Veh icle Identification Number (VlN )
The Vehicle Identific ation N umbe r is lo cate d in
d if f eren t places:
- u nder the w indshield on the dr iver's side
~ fig. 218.
-in the radio or i n the MMI*: Select: !CAR! func­
t io n but ton
> Vehicle ID number (VIN) or se­
l e ct:
I CAR ! funct ion button > Car system s* con­
t rol but ton
> Servicing & checks > VIN num­
ber .
-on the vehicle identific ation label.
Technical data
Vehicle identification label
T he vehicle identi fica tion label is lo cate d in t he
l uggage compa rtment near the ba tte ry.
T he labe l
~ fig. 219 shows the fo llow ing vehicle
da ta:
(D Vehicle Identification Number (VIN)
@ Vehicle type, eng ine output, transm ission
@ Engine and transmission code
@ Paint numbe r and interior
® Optional equipment numbers
T he information of the veh icle identification label
c an also be fo und in your Warran ty
& Mainte ­
nance booklet.
Safety compliance sticker
The safety compliance sticker is yo ur ass urance
t h at your n ew vehi cle complies w ith all appli cable
Fede ral Motor Vehicle Safety Stand ard s which
we re in effe ct at the time the veh icle w as m anu ­
fac tured. Yo u ca n fi nd this sticker on the door
jamb on the driver 's side. It shows the month and
year of production and t he ve hicle identification
number of your ve hicle (perforation) as well as
t h e Gross Vehicle Weight Rat ing (GVWR) and the
G ross Axle We ight Rati ng (GAWR).
H igh vo ltage warning label
T he hig h voltage warning label is located in the
engine compa rtment ne xt to the engine hood re­
lease. The spark ignition system complies with
the Canadian standard ICES-002.
Weights
Gross Vehicle W eight Rating
The Gross Vehicle Weight Rating (GVWR), and
the Gross Axle Weight Rating (GAWR) for front
and rear a re listed on a sticker on the door jamb
o n the dr iver 's side .
T he Gross Vehicle Weight Rating includes the
weight o f the basic vehicle plus fu ll fuel tank, oil
and coolant, p lus maxim um load, which includes
passenger weight (150 lbs/68 kg per des ignated
seat ing pos ition) and luggage weight
c:> .&, . .,.
255

..... N
0 ::..:: co ..... ..... today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nance and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicab le text and careful­
ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you check anything in the engine com­
partment, always read and heed all WARNINGS
c::> .&. and c::> .&. in Working in the engine compart­
ment on page 203 .
Consumer information
A WARNING
-Serious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fully familiar with these
or other procedures with respect to the ve­ hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or any
properly equipped and qualified workshop.
- The engine compartment of any motor vehi­
cle is a potentially hazardous area. Never
reach into the area around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The radiator fan switches on auto­
matically when the coolant reaches a certain
temperature and will continue to run until
the coolant temperature drops.
- Always remove the ignition key before any­
one gets under the vehicle.
-Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The jack supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that
the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in "P"
(Park position) or Neutral (manual transmis-
sion) and the park brake is firmly applied . ..,.
259

Consumer inf orm ation
@ For the sake of the env ironment
- Changing the engine settings wi ll adversely
affect emission levels. Th is is detrimental to
the environment and increases fuel con­
sumption.
- A lways observe environmental regu lations
when disposing of old engine o il, used brake
fl ui d, d irty engine coolant, spent batteries
or worn out tires.
- Undeployed airbag modules and pretension­
ers mig ht be classified as Perchlorate Mate­
rial -special handl ing may apply, see
www.dtsc .ca.gov/hazardouswaste/perchlo­
r ate. When the vehicle or parts of the re­
straint system including airbag modu les
safety be lts wi th pretensioners are scrap­
ped, all applicab le laws and regulations
must be observed. Your authorized Audi
dealer is familiar with these requirements
and we recommend that you have your deal­ er perform this service for you.
Accessories and technical changes
Additional accessories and parts replacement
Always consult an authorized Audi dealer before
purchasing accessories.
Your vehicle incorporates the latest safety design
features ensuring a high standard of active and passive safety.
This safety could be comp romised by non-ap­
proved changes to the vehicle . For this reason, if
parts have to be replaced, please observe the fo l­
lowing points when insta lling addit ional accesso­
ries:
Approved Audi accessories and genuine Audi parts are available from author ized Audi dealer.
These dealers also have the necessary facilities,
too ls and trained specialists to install the parts
and accessories properly.
260
A WARNING
-
Using the wrong spare parts or using non-ap-
proved accessories can cause damage to the
vehicle and serious personal injury.
- Use only accessories expressly approved by
Aud i and genuine Audi spare parts
- These parts and accessor ies have been spe­
cially designed to be used on your vehicle.
- Never install accessor ies such as telephone
cradles or beverage holders on airbag covers
or w ith in the airbag deployment zones. Do­
ing so will increase the risk of injury if a ir­
bags are triggered in an accident!
- Before you check anything in the eng ine
compartment, always read and heed all
WARN INGS
Qpage 203.
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair wor k is not per­
formed a ccording to specified methods, this
c an resul t in severe damage to you r vehi­
cle's eng ine and body (such as corrosion)
and adve rsely af fect your vehicle's war ranty.
- I f emergency repai rs must be performed
elsewhere, have the vehicle exam ined by an
authorized A udi dealer as soon as possib le .
- T he manuf acture r ca nnot be held liable for
damage which occurs d ue to failure to com ­
ply with these stipulations.
Technical Modifications '
Our guidelines must be complied with when tech ­
nical modifications are made .
Always consult an a uthorized Audi de aler bef ore
sta rt ing work on any modifica tions.
This will help ensure that vehicle fu nction, per­
fo rmance and safety are not impaired
Q ,& .
Attempting to work on electronic components
and the software used with them can cause mal­
funct io ns. Because of the way elect ronic compo­
nen ts a re interconnected with each othe r, such
malfunc tions c an also have an adverse affect on
othe r systems that are not d irectl y involved. This ..,.