Volkswagen Passat 1995 Official Factory Repair Manual page 4303

Work descriptions
drop rapidly to below displayed minimum voltage.
After test has been performed, voltage will remain at this
low value for a long time, and will climb back up only very
slowly.
Printout from battery
Starting output very good
Starting output good
Starting output sufficient
Starting output poor
Starting output very poor
Not testable
Topping off distilled water (batteries with magic
eye)
To avoid electrolyte impurities, which can increase self-
discharge of battery, only distilled water may be added to
increase acid level.
Perform following work procedure:
- Remove foil over sealing plug.
- Unscrew battery sealing plugs.
- Using battery fill bottle VAS 5045/ fill with distilled water up
to max.-marking.
Note:
Construction of filler tube of battery filler bottle VAS
n
5045/ prevents overfilling of battery cells and
escaping of battery acid. When max. fill level is
reached, inflow of distilled water into cells is
interrupted.
Too low an electrolyte level (below min.-marking)
n
causes a loss of battery capacity (power), due to cell
plates drying out. If cell-plates are not surrounded with
electrolyte (sulfuric acid), plates, plate straps, and cell
connectors will corrode. battery will not function as a
consequence of this corrosion. battery becomes
unusable.
If electrolyte level is too high (above max.-marking),
n
electrolyte (a mixture of sulfuric acid and water)
escapes and causes damage outside battery, for
example to functional parts in engine compartment.
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.ME01.01.5
tester
Inspection
service
Battery OK
Battery OK
1)
Recharge battery
1)
Recharge battery
1)
Recharge battery
1)
Recharge battery
Page 73 of 83
12/7/2004