Brake Fluid; Battery - Audi R8 2017 Owner's Manual

Ch e ck ing and Filling
away from children . There is a risk of
poisoning .
- When working in the engine compartment,
remember that the rad iator fan can sw itch
on even if the ign ition is switched off, which
increases the risk of personal injury.
{(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
cont inue driving. See an authorized Audi deal-
er or author ized Audi Service Facility for assis-
t ance .
Brake fluid
Changing the brake fluid
The brake fluid level is also mon itored t hrough
an ind icator light in the Infotainment system dis-
play ¢ page 11 .
Brake fluid is rep laced during an inspection by an
author ized Audi dealer or author ized Audi Service
Facility . These facilities are equipped with the re-
qu ired special tools and replacement parts. They
a lso have the necessary techn ica l knowledge a nd
a re equipped to d ispose of used fl uids.
Refer to the maintenance sched ule for when the
nex t brake fl uid change is d ue.
A
WARNING
-
If the brake f luid is too low , bubbles may
form in t he brake system during heavy bra k-
ing. This wou ld impair braking perfo rma nce
and driving safety, which increases the risk of
an acc ident.
Battery
General information
The battery in your Audi does not need any main-
tenance unde r normal operat ing cond itions . Audi
recommends having t he e lectrolyte leve l check
by an au t hor ized Audi d ealer or au t ho rized Aud i
Serv ice Facility whe n t here a re high out side tem-
pe rat ures or when driving a ll day. The elect rolyte
230
leve l should also be checked each time the bat-
tery is charged ¢ page 232.
Have t he ba tte ry checked when you bring your ve-
hicle in for a n inspection . It is a good idea to re -
place the battery if it is more than S yea rs old .
Somet imes whe n the airbags deploy, the bat t ery
will be di scon nected from the vehicle elec tr ical
system fo r safety reasons ¢ .&. in Repair, care
and disposal of the airbags on page 195.
Disconnecting the battery
The bat t ery should not be disco nnected . Several
vehicle functions (powe r windows, for examp le)
will be lost when the battery is disconnec t ed . The
funct ions m ust be reprogrammed after connect -
ing the battery . To avoid t his, the bat t ery sho uld
on ly be disconnected from the vehicle electrical
system when it is absolute ly necessary.
Not running the vehicle for long periods of
time
If you do not d rive your vehicle for severa l days or
weeks, e lectrica l consumers are grad ually scaled
back or sw itched off. This reduces energy use and
ensures the vehicle will be ab le to start after long
per iods of time ¢ page 87 . Some convenience
funct ions, such as interio r ligh ti ng or power seat
adjustment, may not be avai lab le unde r certain
circu ms t ances . These convenience functions will
be available again on ce you swit ch t he ign itio n on
and sta rt the engi ne.
Winter operation
A lot of st ress is placed on the battery during
cold weat he r, which resu lts in reduced sta rting
ability. Have t he bat t ery checked and rec harge d if
ne cessary before the cold wea t her beg ins.
A
WARNING
-
- Wor k on the battery requires expert know l-
edge . Contact an author ized Audi dealer or
author ized Audi Service Facility for info rma-
tion regarding the vehicle batte ry. There is a
risk for chemical burns or explosions.
- Never ope n the vehicle batte ry. Do not try to
change the battery elect rolyte level. Other-
wise explos ive gas w ill escape from the
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