Volkswagen Passat 1995 Official Factory Repair Manual page 4300

Work descriptions
If battery is not securely seated, following dangers exist:
Shortened service life due to damage from vibration
n
(danger of explosion).
If battery is not secured properly normal shock and
n
vibration can damage battery plates, which results in
premature battery failure.
battery casing can be damaged by fastening clip (this
n
might possibly allow acid to escape from battery,
which would have severe consequences).
Poor crash safety.
n
Checking batteries / batteries with magic eye and
with top-sealed battery cell plugs
Checking battery / batteries with magic eye and without
battery cell plugs 01-5, Checking battery / batteries with
magic eye and without battery cell plugs
magic eye - arrow - gives information regarding acid level
and charge level of battery.
- Before performing a visual check, lightly and carefully tap
onto magic eye using a screwdriver handle.
Air bubbles, which can affect display, are dispersed by
doing this.
Reading colored display of "magic eye" will therefore be
more accurate.
Note:
magic eye can be located at various positions on
n
battery.
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.ME01.01.5
Page 70 of 83
12/7/2004