Volkswagen Touran Service Manual: Battery

Volkswagen Touran Service Manual / Electrical System / Battery, Starter, Generator, Cruise Control / 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.

Types of Batteries

General Information

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.

AGM Battery

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.

Warnings and Safety Precautions

Battery, Starter, Generator, Cruise Control

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Battery Safety Precautions

Recognizing and Preventing Risks Batteries present risks. Read the warnings on the battery label, in the owner's manual and in ELSA to prevent these ...

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