check engine AUDI A5 COUPE 2016 Owner's Manual

Check ing and F illing
blink until you add coolant and the level has been
restored to normal. Even though there is an e lec ­
tr ic coolant level sensor, we still recommend you
check the coo lant level from time to time.
Coolant los s
Coolant loss may indicate a l e ak in the cooling
system. In the event of coolant loss, the cooling
syst em should be insp ected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant.
I n a
s e aled system, losses can occur only if the
boiling point of the coo lant is exceeded as a re­
sult of overheating.
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 wh ile apply ing
l ight, downward pressure on the top of the
cap .
- To avo id being burned, do not sp ill anti ­
freeze or coolant on the exhaust system or
hot eng ine parts . Under certain conditions,
the ethy lene g lycol i n engine coolant can
catch fire.
{Q) Note
Do not add any type of radiator leak seala nt
to your veh icle's engine coolant . Adding radia­
to r repa ir fluid may adversely affec t the func­
tion and performance of yo ur 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 anyth ing in the eng ine compart­
ment,
a lwa ys re ad an d heed all WARNINGS
198
¢ A in Working in the engine compartment on
page 191.
Requireme nt: The re must be a res idual amount
of coo lant in the expans ion tank
~CD-
.,,. Turn off the engine .
.,,. Let the engine cool down.
.,,. Place a thick rag over the coolan t expa nsion
tank ¢page 197, fig. 163 and
carefull y turn
the cap counter-clockwise ¢.&_ .
.,,. Add coo lant mixed in the correct ratio
~ page 196, Coolant up to the MAX marking.
.,,. Make sure that the fluid level remains stab le.
Add more coolant if necessary .
.,,. Twist the cap on aga in tightly.
Replacement engine coolant must conform to ex­
act specifications ¢ page 196, Coolan t.
We recommend using only coo lant additive
G l2 +
+ , Gl3
or in an emergency Gl2+. Do not use a
different additive . In an emergency use plain wa ­
ter unt il you can get the correct addit ive and can
restore the correct rat io. Th is should be done as
soon as possible.
If you have lost a considerable amount of cool­
ant, then you should add cold antifreeze and cold
water only when the engine is cold.
Always use new engine coo lant when refilling .
Do not fi ll coolant above the "MAX " mark. Excess
coolant will be forced out th rough the pressure
relief valve in the cap when the engine becomes
hot.
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 engine and a llow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap s low ly and very ca refully in a
counter-clo ckwise direction wh ile app ly ing
li ght, downward pressure on the top o f
the cap.
~

,-1 N
0 1-CX)
,-1 I.Cl U"I
,-1 I.Cl ......
-To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­ ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its original container and well out
of the reach of children.
- If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison".
(D Note
-Do not add coolant if the expansion tank is
empty . Air could enter the cooling system
and damage the engine.
If this is the case,
do not continue driving. Seek professional
assistance.
- Coolant pollutes the environment and could
cause an engine fire. Excess coolant will be
forced out through the pressure relief valve
in the cap when the engine becomes hot.
-If, in an emergency, only water can be add­
ed, the correct ratio between water and an­
tifreeze c::>
page 196 must be restored as
soon as possible.
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose of used coolant while observing all
environmental regulations.
Radiator fan
The radiator fan switches on automatically by it­
self.
The radiator fan is driven by the engine via the V­
belt . The viscous clutch regulates the speed of
the fan according to the temperature of the cool­
ant.
An auxiliary electric radiator fan* switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes -even
Checking and Filling
with the ignition off. It can even switch on again
later by itself c::>
&, if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­
gine compartment, or
- the engine compartment heats up because the
vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury never
touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly even
when the engine is not running.
- The auxiliary radiator fan switches on auto­
matically when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The broke fluid level con be checked with o quick
glance .
Fig. 164 Engine compartmen t: Cover on the brake flui d
re servoir
Before you check anything in the engine compart ­
ment,
always read and heed all WARNINGS
c::> _.& in Working in the engine comportment on
page 191.
.,. Read the brake fluid level from the brake fluid
reservoir c::>fig.164,
c::>poge 193, fig .160 . The
brake fluid level must be between the "MIN"
and "MAX" markings.
199

Check ing and F illing
The brake fluid rese rvoir is located at the rear
partition of the engine compartment on the l eft
side
c!,> pag e 193 .
The fl uid level may drop slightly after some time
due to the automatic adjustment of the brake
pads . This is not cause for alarm.
If th e b rake fl uid level fa lls considerably be low
the "M IN" mark, the b rake warning/ind icator
lig ht ( U.S. mode ls :
1111 , Canadian models:. )
will come on
c!,> page 15 . Do not contin ue to oper ­
ate the vehicle . T he comp lete brake system
should be thoroughly checked by an authori zed
Aud i dealer or qualified workshop and the cause
corrected . If the brake flu id level is too low, the
b rake warning/indicator light will i llum inate.
Contact a n author ized Audi dealer
immediately .
{D) Tips
The brake fluid reservoir is located under­
neath the cover .
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs mo isture from the air. If the
water content in the b rake fluid is too high, cor­
rosion in the brake system may resu lt afte r ape ­
riod of t ime. The boiling poi nt of the brake flu id
will also decrease cons iderably and decrease
b raking perfo rman ce.
Therefore, the brake fluid must be changed
every
two year s.
Always use new brake fluid wh ic h con­
forms to Fede ral Motor Veh icle Standard "FMVSS
1 16 DO T 4".
The brake fluid reservoir can be diff icult to reach,
therefore, we recommend that yo u have the
brake fl uid changed by yo ur autho rized
Audi
dealer .
Your dealer has t he corre ct tools, t he
right brake fluid and the know-how to do this for
you.
A WARNING
- Brake fluid is poisonous. It must be stored
only in the closed orig inal container out of
the reach of chi ldren!
200
- Bra ke fa ilure ca n result from old or inapp ro­
priate brake fluid . Observe these precau­
tions:
- Use only brake fluid t hat meets SA E speci­
fi ca ti on
J 170 3 and con forms to Federa l
Motor Ve hicle Standard 116 . Always check
wi th yo ur autho rized Audi dea le r to make
s ur e yo u are using the correct brake fluid .
The correct type of brake flu id is also ind i­
cated on the b rake fluid reservo ir .
- The brake fluid m ust be new . Heavy use of
the brakes can cause a vapo r lock if the
brake fluid is left in the system too long .
This can se riously affect the efficiency of
the b rakes as well as your safety . This
could resu lt in an accident .
(D Note
Brake fluid will damage the paint of your veh i­
cle.
@ For the sake of the environment
Because of the problem o f proper d isposa l o f
brake fluid as well as the spec ial too ls re­
q ui red a nd the necessary expertise, we rec­
omme nd that you have the bra ke f luid
changed by yo ur autho rized Aud i dea le r.
Battery
, General information
U nder normal operating condit ions, the battery
i n your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the elect ro ­
lyte level c hecked by an au thorized Aud i dealer o r
qualified workshop. The electro lyte level shou ld
a lso be che cked each time the battery is c ha rged
c:!,> page 202.
Have the batte ry chec ked when you take yo ur ve­
hicle in for service. You are we ll adv ised to re­
pla ce a battery tha t is older than 5 yea rs.
With certain types of airbag deployment, t he
batte ry is d iscon nected from the ve hicle electri­
ca l system for safety reasons
c!,> .&. in Repair, care
and disposal of the airbags on page 1 42. .,.

.... N
0 I-­co .... .... Disconnecting the battery terminals
Some vehicle func tion s (p ower w indow reg ula­
tors, for example) are lost i f th e battery termi ­
na ls are d isconnected. These functions have to be
relearned afte r the battery termina ls are con­
nected aga in. To prevent th is, the batte ry shou ld
only be disconnected from the vehicle e lectr ica l
system w hen abso lute ly necessary for repairs.
Vehicles not driven for long periods
If yo u do not drive you r vehicle over a period of
seve ral days or weeks, e lectrical components a re
g radually c ut back or sw itched off. This reduces
e nergy consumption and ma inta ins starting ca ­
pability over a longer pe riod
c:> page 175 .
Some of the conven ience f unctions may not ope r­
ate, s uch as the inte rior lights or the power seat
ad justment. The convenience functions will be
ava ila ble aga in whe n you tu rn o n the ignition and
start the engine .
Winter operation
During the winter months, battery capacity tends
to dec rease as temperatu res dr op. This is be­
cause more power is also consumed wh ile start ­
in g, and the head lights , rear wi ndow defogge r,
etc., are used more of ten .
Avoid un necessa ry power consumption, part icu­
l arly in city traffic or when t rave ling on ly short
d ista nces . Let your authorized Audi dealer check
the capaci ty of the vehicle battery be fore w inte r
sets in
r=;, pag e 202. A well cha rged batt ery w ill
n o t onl y preven t st arti ng p roble ms w hen the
wea ther is cold, but will also last l on ger .
(D Tips
If your v ehicle is left stand ing fo r se ve ral
wee ks at extre mely low tem per at ures, the ve­
hicle b attery sh ould be re moved and stor ed
w here it will not free ze . Th is will preve nt i t
from being dama ged and hav ing to be re ­
placed .
Checking and Filling
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart ­
ment under the floor. Befo re you check anything
i n the luggage compart ment ,
read and heed all
WARNINGS
c:> &_ .
Always heed the safety warnings , when working
o n the veh icle batte ry or t he ve hicle elec trical
system to prevent in jury .
The following WARNINGS are very important
when working on the battery :
Always heed the following WARNING SYM-
BOLS and safety precautions when wo rking on
the battery.
®
Always wear eye protection.
A
Battery acid contains sulfuric acid. Al-
ways wear gloves and eye protection.
@
No
- sparks
- flames
- smoking.
~
When a battery is charged , it produces
hydrogen gas which is explosive and
could cause personal injury.
®
Always keep the battery well out of reach
of children.
A WARNING .....__ -
Wheneve r working on t he battery or on the
e lectr ica l system, the re is the r isk of injury,
accide nt a nd eve n fire. Read and he ed the fol­
l ow ing W AR NIN GS:
- Always wear eye protection. Do not let bat­
tery acid or any l ead particles ge t on you r
skin o r clothing. Shield yo ur eyes. E xplosiv e
g ases can ca use b lindne ss or other in jury.
- Ba tte ry acid contai ns sulfur ic acid. Sulfu ric
acid can ca use blindness and s evere burns.
- Always wea r gloves and eye protection . Do
n ot tilt t he batte ry because aci d could lea k
out of the ventilation openings. ""
201

Checking and Filling
-If you get batt ery acid in your eyes or on
your skin, immediately rinse with cold wa ­
ter for several minutes and get medical at­
tention .
- If you should ingest any battery acid, seek
medical attention immediately.
- Do not expose the battery to an open flame, electric sparks or an open light .
- Do not smoke.
- Do not interchange the positive and nega-
tive cables.
- When working on the battery, be sure not to short-circuit the terminals with tools or oth­
er metal objects. This would cause the bat ­
tery to heat up very quickly, which could lead to damage or explosion and personal
injury.
- When a battery is charged, it produces hy­
drogen gas which is explosive and could
cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys­
tem, disconnect the nega tive ground cable .
- Before performing any work on the electri­ cal system, switch off the engine and igni­
tion as well as any electrical equipment. The negative cable on the battery must be dis­
connected. If you are just going to replace a
light bulb, then it is enough to switch off
the lights.
- Before disconnecting the battery, sw itch off
the anti-theft alarm system! Otherwise you
will set off the alarm.
- When disconnecting the battery, first dis­
connect the negative cable and then the
positive cable.
- Before reconnecting the battery, make sure
all electrical consumers are switched off.
Reconnect the positive cable first and then
the negative cable. Never interchange the
cabl es - this could start a fire!
- Never charge a frozen or a thawed-out bat­
tery . It could explode! If a battery has fro­
zen, then it must be replaced. A discharged
battery can freeze over at 32°F (0°C).
- Make sure the vent hose is always attached
to the opening on the side of the battery.
202
- Never use batteries which are damaged .
There is the danger of an explosion! Always
replace a damaged battery.
A WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive problems.
Wash hands after handling .
(D Note
- Do not disconnect the vehicle battery when
the ignition is switched on or when the en­
gine is running, otherwise, you will damage
electronic components in the electrical sys­
tem .
-If your vehicle is going to stand for a long
period of time without being driven, protect
the battery from "freezing" , otherwise it
will be damaged and will then have to be re­
placed.
Battery charging
Starting the engine requires a well charged bat­ tery .
Fig. 165 En g in e compar tment : Co nnectors for charger and
jumper cab les
Always read and heed all WARNINGS below
9 A and ¢ A in Working on the battery on
page 201.
.,. Turn off the ignition and all electrical consum­
ers.
.,. Make sure the area is well ventilated when you
charge the battery.
Iii>-

.... N
0 I­co .... .... ~ Open the engine hood ¢page 191.
~ Open the cover on the positive pole ~ fig. 165.
~ Connect the charger connectors accord ing to
the instructions to the
jump start bolts. (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
~ & -
~ Make sure the charging rate is not over
30 amps/14.8 Volt.
~ When the battery is fully 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 191.
A discharged battery can freeze 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 using a
thawed batte ry again because the battery casing
can be cracked due to ice formation and can leak
battery acid.
Battery charging (Maximum charging rate of
30 amps/14.8 Volt)
When charging at low voltages (e .g . with a trick­
le charger),
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 battery from
the luggage compartme nt.
Fast charging the battery (charging rate
above 14.8 Volts)
Fo r 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 .
Checking 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 housing 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 explosive.
- 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 with 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, relays, 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 electrical energy
throughout your vehicle ~
page 175. 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>
203

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. 16 6 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. 166 , ¢ page 193 ,
fig . 160 .
.,. 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 191.
204
.,. 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 242.
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 assistance
Using the spare tire (compact spare tire)
The compact spare tire is only intended for emer­
genc ies until you can reach a repair shop. Repla ce
it as qu ickly as possible with a standard wheel
and tir e.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for yo ur type of vehi­
cle. It must not be swapped with a compact
spare tire from another type of vehicle.
Snow chains
F or technica l reasons, the use of snow chains on
the compact spare tire is
not permitted .
If you do have to dr ive with snow cha ins and a
front tire fails, mo unt the spare wheel with t ire
instead of a rear tire. Install the snow chains on
the rear tire and use it to rep lace the defective
front tire .
A WARNING
-Never use the spare tire if it is damaged or if
it is worn down to the tread wear indicators.
-If the spare tire is more than 6 years o ld,
use it only in an emergency and with ex­
treme caution and carefu l dr iving .
- The spare tire is intended on ly for tempora­
ry and short-term use. It shou ld be replaced
as soon as possible with the normal wheel
and t ire.
- After mounting the compact spare t ire, the
t ir e pressure must be checked as soon as
poss ible. The tire pressure of the compact
spare tire must be 4.2 bar; otherwise, you
risk having an accident .
- Do not drive faster than SO mph (80 km/h).
You risk hav ing an accident.
- Avoid full-throttle accelerat ion, heavy brak­
ing, and fast cornering. You risk having an
acc ident.
- Never drive using more than one spare
wheel and tire. You risk having an accident .
- Normal summer or winter tires must not be
mounted on the compact spare wheel rim .
- For technical reasons, the use of tire chains
on the spare tire is not perm itted . If it is
226
necessary to drive with tire chains, the spare
wheel must be mounted on the front axle in
the event of a flat in a rear tire. The newly
ava ilable front wheel must then be installed
in place of the rear wheel w ith the flat tire.
Installing the tire chain before mounting
the wheel and tire is recommended.
- Loose items in the passenger compartment
can cause serious personal injury during
ha rd braking or in an accident. Never store
the spare tire or jack and tools in the pas­
senger compartment.
Replacing wheels
· Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a wheel.
.,. After you experience a tire failure, pull the car
well away from moving traffic and try to reach
level ground before you stop¢ A_.
.,. All passengers should leave the car and move
to a safe location (for instance, behind the
guardrail) ¢
&_.
.,. Engage the parking brake to prevent your vehi­
cle from rolling unintentionally ¢
A_.
.,. Shift into 1st gear on vehicles with manua l
transmission, or move the
selector lever to the
P position
on vehicles with automatic transmis­
sion.
.,. If you are towing a trailer: unhitch the trailer
from your vehicle.
.,. Take the
jack ¢ page 225 and the spare tire
¢ page 225 out of the luggage compartment .
A WARNING
You or your passengers could be injured while
changing a whee l if you do not follow these
safety precaut ions:
- If you have a flat tire, move a safe distance
off the road. Turn off the engine, turn the
emergen cy flashers on and use other warn­
ing devices to alert other motorists.

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
236
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 191.
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 191.
(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. 186. 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.
238
-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 238 and c> page 239.
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 in stall the front towing loop un til i t is
needed .
Fig. 187 Front bumper: removing the cover cap
Fig. 188 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 225 .
... Press the cover in by applying short strong
pressure to the bottom part to r elease it from
the bumper
c> fig. 187.
... Screw the towing loop tightly into the threaded
hole as far as i t will go
c> fig. 188 and tighten it
with the wheel wrench . ..,.