engine AUDI A5 CABRIOLET 2017 Repair Manual

Check ing and F illing
Audi oil quality standard
Gas olin e
VW 502 00 or
engi ne vw 50400
A udi reco mmend s
~Castrol I jgl[J,'fE{g ?r,w.:..~J ri, '.IA!,
Audi rec ommends Longlif e high perform ance
engi ne oil from Au di Genuin e Parts
Using the proper engine oil is important for the
functionality and service life of the engine. Your
engine was factory-filled with a h igh-quality oil
which can usually be used throughout the entire
yea r.
(D Note
Your Limited New Vehicle Warranty does not
cover damage or malfunctions due to failure
to follow recommended maintenance and use
requirements as set forth in the Audi Owner's
Manual and Warranty & Maintenance booklet .
- Use only a high qual ity eng ine oil that ex-
pressly complies with the Audi oil quality
standard specified for your vehicle's engine .
Using any other oil can cause serious engine
damage.
- Do not mix any lubricants or other additives into the engine oil. Doing so can cause en­
gine damage.
@ Tips
If you need to add oil and there is none availa ­
ble that meets the Audi oil quality standard
your engine requires, you may add a total of
no more than 0.5 quart/liter of a h igh-quality
"synthet ic"oil that meets the following speci­
fications.
- Vehicles w ith gasoline eng ine: ACEA A3 or
API SM with a viscosity grade of SAE OW-30,
SAE 5W-30 or SAE 5W-40.
- For more information about engine o il that
has been approved for your vehicle, please
contact either your authorized Audi dea ler
or Aud i Custome r Relat ions at
1 (800) 822- 2834 or visit ou r web site at
www.audiusa.com or www .aud icanada.ca.
196
· Eng ine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all of
its moving parts.
In order to provide effect ive lubricat ion and cool­
i ng of internal engine components, all internal
combust ion eng ines consume a certa in amount
of oil. Oil consumption var ies from engine to en­
gine and may change sign ificantly over the life of
the engine . T ypically, engines w ith a specified
break -in period (see¢
page 175) consume more
oi l during the break-in period than they consume
after oil consumption has stabilized.
U nder normal cond itions, the rate of oil con­
sumption depends on the quality and viscosity o f
the oil , the RPM (revo lutions per minute) at
which the engine is operated, the ambient tem­ perature and road conditions. Further factors are
the amount of o il dilution from water condensa­
tion or fuel residue and the oxidation level of the
o il. As any engine is subject to wear as mileage
builds up, the o il consumption may increase over
ti me unt il replacement of wo rn compo nents may
become necessary.
With all these variables coming into play, no standard rate of o il consumption can be estab­
li shed or spec ified . T he re is no alte rnative to reg­
u la r and freq uent checki ng of the oi l level, see
Note.
If the yellow engine oil level warning symbo l II
in the instrument cluster lights up, you sho uld
chec k the o il level as soon as possible
¢
page 197. Top off the o il at your earlies t con­
venience
¢ page 197.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
¢ .&. in Working in the engine compart­
ment on page 193.
(D Note
D riving with an insuffic ient oil level is likely to
cause severe damage to the eng ine.

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@ Tips
-The oil pre ssure w arning display. i s not
an indicator of the oil level. Do not rel y on
it. Instead , check the oil level in your en­
gine at regular inte rval s, preferably each
t ime you refuel , and alway s befo re going
on a long trip.
- If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you cons ult an autho rized Aud i
dealer to have the cause of your concern properly d iagnosed. Keep in mind that the
accurate measurement of oil consump tion
requi res great care and may take some
time. An a uthorized Audi dea ler has instruc ­
tions about how to measure oil consump ­
tion accurately.
Checking the engine oil level
Fig. 172 MM I D isp lay: O il leve l in dicator
Read oil level
.. Park yo ur vehicle so that it is hor izontally level.
.. Shu t the engine off w hen it is at operat ing tem-
perature.
.. Switch only the ignition back on.
.. Wait approx . two mi nutes .
.. Se lect : Function button
~IC~A~R~I > Oil le vel. Or
.. Select : Funct ion button
ICARI > C ar sy stems *
contro l button > S ervici ng & checks > Oil leve l.
.. Read the oil level in the MMI* Display
¢fig . 172. Add engine o il if the bar of the oil
level indicator is near "min"
r::;, page 197
Depending on the way the vehicle is driven and
the operating cond itions, o il cons umption can be
up to a 1/2 quart per 600 m iles (0.5 liter per
Checking and Filling
1,000 km) . Consumptio n may be higher w ithin
the first 3,000 mi les (5,000 km).
(D Tips
The oil leve l indicato r in the M MI * Display is
on ly an information display. If the oi l level is
too low, a minimum oil warning appears in
the instr ument cluster . Add oil¢
page 197 .
If the hood has been opened, the current oil
l evel is shown in the instrument cluster the
next time the ignit ion is switched on.
"l=:7: Adding engine oil
Fig. 173 En g in e compartment: Cover on the oil filler nec k
.. Before you check anything in the eng ine com­
partment,
a lwa ys read and heed all WARN ­
INGS
r::;, .&. in Working in the engine compart­
ment on page 193 .
.. Shu t the eng ine off .
.. Uns crew the cap
't=;,: to the engine oil filling
hole
r::;, fig. 173, r::;,page 195, fig. 171 .
.. Carefully top o ff wi th 0.5 quarts (0.5 liters) of
the appropriate oil
r::;, page 195 .
.. Check the oil level again after two minutes
r::;, page 197, Checking the engine oil level.
.. Top off the o il again, if necessary .
.. Screw the cap back on the filling hole .
A WARNING
-- Wh ile topping off, the o il must not come in
con tact w ith ho t engine parts - fi re hazard!
- The oil filler cap must be p roper ly secured
to p revent o il from being sprayed on t he ho t
engine and exhaust system when the engine
is running - fi re ha zard!
~
197

Check ing and F illing
- If your skin has come in contact with the en­
gine oil, you must subsequently cleanse it
thoroughly .
@ Note
-Check the oil level using the radio or MMI*.
If the message
Pleas e reduce oil le vel a p­
pears, contact your authorized Audi dea ler
or qualified workshop to have excess oil ex­
tracted if necessary .
-Audi does not recommend the use of o il
add it ives. They may damage the eng ine
and adve rsely affect your N ew Vehicl e
Warranty .
@ For the sake of the environment
-Under no circumstances can the oil come in
contact with the sewage network o r the soil.
- Observe and follow legal regulations when
dispos ing of empty oil conta ine rs .
Changing the engine oil
We recommend tha t have your oil changed by an
authorized Audi dealer or a qualified service s ta­
tion .
Befo re you check anyth ing in the eng ine compart­
ment,
alway s read and heed all WARNINGS¢.&
in Working in the engine compartment on
page 193 .
The engine oil must be changed accord ing to the
intervals specif ied in your Warranty
& Mainte­
nance booklet. This is very important because the
lubricat ing propert ies of o il d iminish gradually
du ring normal vehicle use .
Under some circumstances the eng ine o il should
be changed more frequently . Change oil more of­
ten if you d rive mostly short distances, operate
the vehicle in dusty areas or under predominant ly
stop-and-go traffic cond it ions , or have yo ur vehi­
cle where temperat ures remain below freezing
for extended periods.
D etergent addi tives in the oil will make fresh o il
loo k da rk afte r th e eng ine has been ru nning fo r a
short t ime. This is no rma l and is not a re ason to
change the oil more o ften than re commended.
198
Because of the p roblem of prope r disposa l, along
with the specia l too ls and necessary expertise re­
quired, we strongly recommend that yo u have
yo ur oi l changed by an authori zed
Audi deale r or
a qual ified service station.
If you choose to change you r oil yourself , please
note the fo llow ing important information:
A WARNING
To reduce the risk of persona l injury if you
must change the eng ine oil in your vehicle
yourself:
- Wea r eye protect ion.
- To reduce the r is k of burns from hot engine
oil, let the engine cool down to the touch.
-
- W hen removin g the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm pa rallel to the gro und to
he lp prevent hot oil from run ning down your
arm .
- Drain the oil into a container designed for
this purpose, one la rge enough to hold at
least the tota l amount of oi l in you r engine.
- Engine oil is poisonous. Keep it well out of
the reach of childre n.
- Continuous contact with used eng ine o il is
harmf ul to your skin . Always protect your
skin by washi ng oil off thoroughly with soap
a nd wate r.
@ Note
N eve r mix oil additives with your engine oil.
These additives can damage your engine and
adverse ly affect you r Audi Limi ted New Vehi­
cle Warranty .
@ For the sake of the environment
-Before chang ing your oi l, first make s ure
you know where you can properly dispose o f
the used oil.
- Always dispose of used e ngine o il pro perly .
Do not dump i t on garden soil, wooded
areas, into open streams o r down sewage
dr ains.
- Recycle used e ngine o il by tak ing it to a used
eng ine oil collect ion fac ility in yo ur area, o r
c ont act a servi ce st ation.

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Cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention.
T he cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed . The coolant consists of a mixture of
specially condit ioned water and the manufactur ­
er's glycol-basedcoolant add itive G 13 antifreeze
with anticorrosion additives (SO% for USA mod­
e ls; 60% for Canadian mode ls). This m ixture
both ass ures the necessa ry frost protection and
protects metal components in the engine's coo l­
ing system from corrosion and scaling .
It also
raises the boiling point of the coolant.
Do not red uce the concent ration of the coolant in
the summer by adding p lain water.
The propor­
tion of coolant addit ive mu st be at least 50 %
but not more than 60 %
to mainta in antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en­
g ine cooling system .
For year-round driving, antifree ze is added at the
factory for temperatures down to :
- -31° F(- 3S°C)USA
- - 40 ° F ( - 40 °C) Canada.
If you must add coolant, use a m ixture of water
and coolant addit ive. M ixing the coolant additive
with d istilled water is recommended .
_& WARNING
Before you check anythi ng i n t he engine com­
partment, always read and heed all WARN ­
INGS
¢ .&. in Working in the engine compart­
ment on page 193 .
(D Note
-Befo re winter se ts in, have the coo lant
checked to see if the coolant additive in your
vehicle is sufficient to meet the cl imate con -
Check ing and Filling
ditions. This is especially important if you
live in a region where the winter is extreme­
ly cold. If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to your cool­
ing system, remember :
- We recommend us ing only coolant add i­
tive G12+ + or G13 for yo ur vehicle. This
coolant addit ive is avai lab le at aut horized
A udi dealers . O ther types of antifree ze can
significantly reduce corrosion pro tect ion .
The resulting corrosion can cause a loss of
coolant and serious engine damage.
- Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding ra ­
diator repair fluid may adversely affect the
function and performance of your cooling system and cou ld resu lt in damage not cov­
ered by your New Veh icle Limited Warra nty .
Checking the engine coolant level
The engine coolant level can be checked with a
quick glance.
Fi g. 1 74 Engin e compar tmen t: Cover o n the coo la n t ex ­
pansion tank
.. Before you check anything in the eng ine com­
partment,
always r ead and heed all WARN­
INGS ¢ ,A in Working in the engine compart ­
ment on page 193 .
.. Par k your veh icle on a leve l sur face.
.. Tur n off t he ignit io n .
.. Read the eng ine coolan t leve l from the coo lant
expansion tank
¢ fig . 174, ¢page 195,
fig. 171 .
With a cold engine, the coo lant level
should be b etween the "MIN" and "MAX" mark­
ings. When the eng ine is warm, the level may
be slightly above the "MAX" marking. .,..
199

Check ing and F illing
The location of the coolant expansion tank can be
seen in the engine compartment illustration
¢ page 195.
To obtain an accura te reading, the eng ine must
be switched off .
The expans io n tank in your vehicle is equipped
with a n elec tric coolant level sensor.
When the coolant level is too low, the war ning
lig ht in the Auto-Check System¢
page 15 will
blin k until you add coo la nt and the level has bee n
restored to normal. Even t hou gh the re is an e lec­
tr ic coolant level sensor, we still re commend you
check the coo lant level from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. I n the event of coolant loss, the cooling
system should be inspected immediately by your
author ized Audi dealer. It is not enough me rely
to add coolant.
I n a
se aled system, losses can occur only if the
boi ling point of the coo lant is ex ceeded as a re ­
sul t of over heat ing.
A WARNING
T he cooling system is unde r pressure and can
get very hot . Red uce the risk of scalding from
hot coolant by following these steps.
- Turn off the eng ine and a llow it to cool
down .
- Protect your face, hands and arms from es ­
caping fluid and steam by cove ring the ca p
with a la rge, thick rag.
- Turn the cap s lowly and very ca refu lly in a
counter-clockwise direction w hile ap ply ing
light, downwa rd pressure o n the top of the
cap.
- To avo id being burned, do not sp ill anti­
freeze or coolant on the exha ust system or
hot eng ine parts. Under certain conditions,
the ethy lene g lycol in e ngine coolant can
catch fire.
(D Note
Do not add any type of radiato r leak sealant
to your veh icle's engine coolant. Adding radia-
200
tor repair fluid may a dverse ly affect the func ­
tion and performance of your coo ling system
and could result in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Befo re yo u check any thing in the engine compart­
ment,
always read and heed all WARNINGS
¢ A in Working in the engine compartment on
page 193.
Requireme nt: The re mus t be a res idual amo unt
of coolant in the expans ion tank ¢(!) .
""Tur n off t he engine .
"" Let the eng ine cool down.
"" Pla ce a thick rag over the coolan t ex pan sio n
tank ¢
page 199, fig. 174 and carefull y turn
the cap counter-clockwise ¢,&. .
"" Add coolant m ixed in the cor rect rat io
¢page 199, Coolant up to the MAX ma rking.
"" Make sure that the fluid level remains stab le.
Add more coolant if necessa ry .
"" Twis t the cap o n aga in
tightly.
Replacement eng ine coolant must conform to ex­
act specifications ¢
page 199, Coolant.
We recommend using only coo lant ad ditive G 12+
+ , G13 or in an emergency G12+. Do
not use a
different additive. In an emergency use plain wa­
te r unt il you can get the cor rect addit ive and ca n
r esto re the cor rect rat io. Thi s should be done as
soon as possib le.
If you have lost a considerable amount of coo l­
an t, then you s hou ld add co ld a ntifreeze and cold
water only whe n the engine is co ld.
A lways use
new engine coo lant when ref illing.
Do no t fill c oolant above the "MAX" mark . Excess
coolant will be forced out th rough the pressure
r elief valve in the cap when the engine becomes
hot.
~

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A WARNING ,~
- The cooling system is under pressure and
can get very hot. Reduce the risk of scald ing
from hot coolant by following these steps.
- Turn
off the engine and allow it to coo l
down.
- Protect you r face, hands and arms from
escaping fluid and steam by cover ing the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise d irection while applying
light, downward p ressure on the top of
the cap.
- To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system or
hot engine parts. Under certa in cond i­
tions, the ethylene glycol in eng ine cool­
ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its orig inal container and well out
of the reach of children.
- If you dra in the coolant, it must be caught
and safely stored in a proper conta iner
clearly marked "poison".
- Do not add coolant if the expansion tank is
empty. Air cou ld enter the cooling system
and damage the eng ine. If this is the case,
do not continue driving . Seek professional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire. Excess coolant will be
fo rced o ut through the pressure relief valve
i n the cap when the e ng ine be comes hot.
- If, in an emergency, only wate r can be add­
ed, the co rrect r atio betwee n wate r and an­
tifree ze
Q page 199 must be res to red as
soon as possib le.
{® For the sake of the environment
Dra ined coolant sho uld not be reused. Always
disp ose of used coolant while obse rving all
env ironment al regulat ions.
-
Ch eck ing and Filling
Rad iator 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 th e speed of
the fan accord ing to the temperature of the cool­
ant .
An auxiliary e lectr ic radiator fan* switches on and
off depending on coo lant temperature and other
vehicle operating conditions.
After you switch the engine
off, the auxiliary fan
can continue running for up to 10 m inutes -even
with the ignition
off. It can even switch on aga in
later by itself
Q .& , 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 beca use the
veh icle is parked in intense sunlight.
A WARNING
- To reduce the r isk of persona l injury neve r
touch the radia to r fan .
- The auxiliary e lectr ic fan is temperature
controlled and can switch on s uddenly even
when the engine is not ru nning .
- The a uxiliary radiator fan sw itches on auto­
mat ically when the eng ine coolant reaches a
certa in temperature a nd will continue to run
until the coolant temperature d rops.
201

Checking and Filling
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance.
Fig. 175 Engine compartment: Cover on the brake fluid
r eservoir
Before you check anything in the engine compart­
ment,
always read and heed all WARNINGS
¢ A in Working in the engine compartment on
page 193.
., Read the brake fluid level from the brake fluid
reservoir
<=> fig . 175, ¢page 195, fig . 171 . The
brake fluid level must be between the
" MIN"
and "MAX " markings.
The brake fluid reservoir is located at the rear
partition of the engine compartment on the left
side
¢ page 195.
The fluid level may drop slightly after some time
due to the automatic adjustment of the brake
pads . This is not cause for alarm .
If the brake fluid level falls
considerably below
the ' 'MIN" mark, the brake warning/indicator
light (U .S. models:
1111 , Canadian models: 1111)
will come on¢ page 13 . Do not continue to oper­
ate the vehicle . The complete brake system
should be thoroughly checked by an authorized
Aud i dealer or qualified workshop and the cause
corrected . If the brake fluid level is too low, the
brake warning/indicator light w ill illuminate.
Contact an author ized Audi dealer
immediately.
(D} Tips
The brake fluid reservoir is located under­
neath the cover.
202
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs moisture from the air. If the
water content in the brake fluid is too high, cor­
rosion in the brake system may result after ape­
riod of time . The boiling po int of the brake fluid
will a lso decrease considerably and decrease
braking performance.
Therefore , the brake fluid must be changed
every
two years .
Always use new brake fluid which con­
forms to Feder-al Motor Vehicle Standard "FMVSS
116 DOT 4 ".
The brake fluid reservoir can be difficult to reach ,
therefore, we recommend that you have the
brake fluid changed by your author ized
Audi
dealer .
Your dealer has the correct tools, the
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 original container out of
the reach of children!
- Brake fai lure can result from o ld or inappro­
priate brake fluid. Observe these precau­
tions:
- Use only brake fluid that meets SAE speci­
fi cation
J 1703 and conforms to Federal
Motor Veh icle Standard 116. Always check
with your authorized Audi dealer to make
sure you are using the correct brake f luid .
The correct type of brake f luid is also indi­
cated on the brake fluid reservoir.
- The brake fluid must be new . Heavy use of
the brakes can cause a vapor lock if the
brake fluid is left in the system too long .
This can seriously affect the efficiency of
the brakes as well as your safety. This
could result in an accident.
(D Note
Brake fluid will damage the paint of your vehi-
cle .
lilJJ,

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@ For the sake of the environment
Because of the problem of proper disposal of
brake fluid as we ll as the special toots re­
quired and the necessary expertise, we rec­
ommend that you have the brake fluid
changed by your authorized Audi dealer .
Battery
General information
Under normal operating conditions, the battery
in your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the electro­
lyte level checked by an authorized Audi dealer or
qualified workshop. The electrolyte level should
also be checked each time the battery is charged
¢ page 205.
Have the battery checked when you take your ve­
hicle in for serv ice. You are well advised to re­
place a battery t hat is older than 5 years.
Disconnecting the battery terminals
Some vehicle functions (power window regula­
tors, for example) are lost if the battery termi­ nals are disconnected. These functions have to be
relearned after the battery terminals are con­
nected again. To prevent th is, the battery should
only be disco nnected from the vehicle e lectr ica l
system when abso lutely necessary for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a period of
several days or weeks, electrical components are
gradually cut back or sw itched off. This reduces
energy consumption and maintains starting ca ­
pability over a longer period¢
page 173.
Some of the conven ience functions may not oper­
ate, such as the interior lights or the power seat
adjustment. The convenience functions will be
available again when you turn on the ignition and
start the engine.
Winter operation
During the winter months, battery capacity tends
to decrease as temperatures drop . T his is be-
Checking and Filling
cause more power is also consumed while start­
ing, and the headlights, rear window defogger,
etc., are used more often.
Avo id unnecessary power consumption, particu­
larly in city traff ic or when traveling only short
distances . Let your authorized Audi dealer check
the capacity of the vehicle battery before winter
sets in ¢
page 205. A well charged battery will
not only prevent starting problems when the
weather is cold, but will also last longer .
(D Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the ve­
hicle battery should be removed and stored
where it w ill not freeze. This will prevent it
from be ing damaged and having to be re­
placed.
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 floo r. Before you check anything
in the luggage compartment,
read and heed all
WARNINGS ¢
LD.·
Always heed the safety warnings, when working
on the vehicle battery or the veh icle electrical
system to prevent injury.
The following WARNINGS are very important
when working on the battery:
Always heed the following WARNING SYM·
BOLS and safety precautions when working on
the battery.
®
Always wear eye protection.
A
Battery acid contains sulfuric acid. Al·
ways wear gloves and eye protection .
@
No
- sparks
· flames
· smoking.
203

Checking and Filling
A
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
Whenever working on the battery or on the
electrical system, there is the risk of injury ,
accident and even fire. Read and heed the fol­
lowing WARNINGS:
- Always wear eye protection. Do not let bat ­
tery acid or any lead particles get on your
skin or clothing. Shield your eyes. Explosive gases can cause blindness or other injury.
- Battery acid contains sulfuric acid. Sulfuric acid can cause blindness and severe burns.
- Always wear gloves and eye protection . Do
not tilt the battery because acid could leak
out of the ventilation openings.
- If you get battery 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
lnJUry.
- 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 negative 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
204
-
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, switch 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
cables - 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 .
- 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 .

a:,
a:,
...... N
" N ...... 0
0
LL co
Battery charging
Starting the engine requires a well charged bat­tery .
Fig. 1 76 Engine co mpartment: Co nnectors for charger and
j u mpe r cab les
A lways read and h eed all WARNINGS be low
¢ &. and
¢&. in Working on the battery on
page 204 .
•Turnoff the ignition and all electr ica l consum­
ers .
• Make sure the area is well vent ilated when you
charge the battery .
• Open the engi ne hood ~
page 193.
• Open the cover on the posit ive pole ¢ fig . 176.
• Connec t the charger connecto rs accord ing to
the instructions to the
jump start bolts . (Bolts
under the cover= "positive", Bo lts with hex
head = "negat ive").
• Only now plug the mains lead for the charging
equipment into the wall outlet and turn it on
c> &, .
• Make sure the charging rate is not ov er
30 amps /14 .8 Volt .
• When the ba tte ry is fu lly charged : Tur n the
charg ing equipmen t off and remove the mains
l ead from the wall outlet.
• Now remove the clamps fo r the cha rging equ ip-
ment.
• Close the cover on the posit ive pole.
• Close the hood ¢
page 193 .
A discharged battery can freeze at temperatures
of only 32 °F (0 °C). A llow a frozen battery to
thaw comp lete ly before attempting to charge it
¢
& . However , we recommend not us ing a
thawed battery again because the battery cas ing
Checking and Filling
can be cracked due to ice forma tion 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 f irst . T he battery caps should
not
be opened when charging a battery .
It is not necessary to remove the battery from
the luggage compartment .
Fast charging the battery (charging rate
above 14 .8 Volts)
F or techn ical reasons do not use a battery cha rg­
er that uses vo ltage greater than 14.8 Vo lts to
charge your vehicle 's battery .
_8 WARNING ~
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manufactur­
er when charging your battery.
- Never charge a froze n battery . It may ex ­
p lode because of gas trapped in the ice. Al·
low a froze n battery to thaw out first.
- Do not reuse batter ies 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 d isconnect charger cables while
the charge r is operating .
- Fast charg ing a battery is dange rous 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 so lution of
warm wa ter and baking soda to neutra lize
the acid .
205