Volkswagen Touran Service Manual: Battery
Battery General Information
WARNING
| Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter "Warnings and Safety Precautions". |
|
Caution
| In order to prevent damage to the battery or
vehicle, observe battery type descriptions and notes.
Refer to
→ Chapter "Types of Batteries". |
|
| To guarantee a long service life, the battery must be
checked, serviced and maintained as described in this manual. |
| In addition to supplying the power to start the engine, the
battery acts as a power reserve for the entire vehicle
electrical system. |
|
|
|
Caution
| The following batteries described are
maintenance-free batteries. Do not remove any of the
labels on the battery and do not add distilled water.
Only perform a visual inspection. Note the chapter on
battery testing. Refer to
→ Chapter "Battery, Checking". |
|
|
|
|
Battery with Visual Indicator, Standard
| This is a maintenance-free battery with liquid electrolyte
(wet battery).
|
WARNING
| Do not check or charge batteries that have a visual
indicator that is bright yellow. Jump starting must not
be used! |
| There is a risk of explosion during testing,
charging or jump starting. |
| These batteries must be replaced. |
|
| This battery has a visual indicator. The visual indicator
shows the state of charge and the battery acid level. Visual
indicator, checking. Refer to
→ Chapter "Visual Display in Battery Cover, Checking". |
|
|
|
Battery with Visual Indicator, Enhanced
| This is a maintenance-free battery with liquid electrolyte
(wet battery).
|
Caution
| Do not remove any of the labels on the battery and
do not add distilled water. Only perform a visual
inspection. Note the chapter on battery testing. Refer
to
→ Chapter "Battery, Checking". |
|
WARNING
| Do not check or charge batteries that have a visual
indicator that is bright yellow. Jump starting must not
be used! |
| There is a risk of explosion during testing,
charging or jump starting. |
| These batteries must be replaced. |
|
| The battery is installed in certain Stop/Start vehicles due
to special requirements. "EFB" is written on the battery cover
to identify this battery. "EFB" stands for
"enhanced flooded battery" (enhanced wet battery). |
| An "EFB" battery may only be replaced with another "EFB"
battery. |
| An "EFB" battery has a visual indicator for checking the
battery electrolyte level. |
| Visual indicator, checking. Refer to
→ Chapter "Visual Display in Battery Cover, Checking". |
 Note
| "EFB" batteries are being installed in smaller gasoline
engines with the Stop/Start system and a manual transmission
from 05/2011. |
|
|
|
| Maintenance-Free Battery with Specific Electrolyte without a
Visual Indicator |
| Lead-acid battery, where the electrolyte is fixed in an
absorbent glass mat (AGM). The battery is closed and equipped
with breather valves. |
| AGM is the English abbreviation for Absorbent Glass Mat. |
| These batteries do not have a visual indicator because the
electrolyte level is predetermined. AGM is on the battery to
identify it. |
Note
| Always replace an AGM battery with another AGM battery. |
|
|
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Warnings and Safety Precautions
Recognizing and Preventing Risks
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Battery Safety Precautions