Brake Fluid: Changing - Audi A8 2003 Maintenance Manual

Steps for removal:
– Unfasten clips -arrows- and take out luggage compartment
side trim.
Procedure:
– Check battery housing for the following:
♦ Battery terminals are not corroded or damaged
♦ Mechanical damage to battery housing and cover, indicated
by electrolyte leakage or crystals at the damaged area
– Damaged batteries must be renewed.
– Before checking electrolyte level: Tap magic eye -arrow- care‐
fully with handle of a screwdriver.
– Read off battery electrolyte level according to colour display.
Two different results are possible:
Colour of magic eye:
Black or green
Colourless or light yellow
Install in reverse sequence.
Note
The magic eye is also referred to as an ALI (acid level indica‐
♦
tor).
The magic eye is only for use in determining the electrolyte
♦
level.
During battery charging or vehicle operation, air bubbles can
♦
form underneath the magic eye which could falsify the colour
display. Tap magic eye lightly to release any bubbles.
3.11

Brake fluid: changing

WARNING
Risk of accident if the brake pedal has too much free play.
♦ Make sure that the brakes work properly before the vehicle
is driven on the road.
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Measure:
Electrolyte level OK: No further measures necessary
Electrolyte level too low: Battery must be renewed
Audi A8 2003 ➤
Maintenance - Edition 06.2014
3. Maintenance
25