Electrolyte level too high

WARNING: This page is about a different variant/trim than selected.

Special tools and auxiliary items needed

Fig 1: Identifying Commercially Available Hydrometer

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Commercially available hydrometer

WARNING:

Refer to Warnings and Safety Measures. Refer to Warnings and Safety Measures for lead-acid batteries .
If electrolyte level is too high, electrolyte (sulfuric acid/water mixture) may leak out and damage the surrounding area, i.e.: plenum and engine compartment.
Excess electrolyte MUST be extracted using a hydrometer
Dispose of electrolyte (sulfuric acid) properly! Waste electrolyte must only be disposed of in appropriate waste disposal sites. Refer to local regulations pertaining to electrolyte disposal.

Remove cell caps from cells with excess electrolyte.

Fig 2: Internal Electrolyte Level Indicator (Lip)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Extract excess electrolyte using hydrometer until electrolyte level is lowered to internal level indicator -1- or external maximum marking.

CAUTION:

Use of genuine VW battery cell caps ensures the different battery cover systems are sealed correctly. Only use genuine cell caps of the same construction if lost or damaged. All cell caps must be equipped with an O-ring seal.