VW Tiguan Manuals

Volkswagen Tiguan Service and Repair Manual: Battery Charger -VAS5095A-

Battery Charger -VAS5095A- Device Description

WARNING

Risk of injury. Follow all Warnings and Safety Precautions.

Caution

In order to prevent damage to the battery or vehicle, observe battery type descriptions and notes.

WARNING

Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.

In this chapter, the base functions of the Battery Charger -VAS5095A- are described. Refer to Battery Charger -VAS5095A- Operating Instructions for additional information.

Note

  • The effective charging current cannot be read out on this unit. The charging current must be measured externally with a current probe.
  • Pay attention to the Battery Charger -VAS5095A- Operating Instructions.

The Battery Charger -VAS5095A- is designed to charge all 12 V batteries in the VW group.

The battery is charged without amperage or voltage surges. Thereby the on-board electronics will not be affected. It is not necessary to remove the battery from the vehicle or be disconnected from the electrical system during charging.

Battery Charger -VAS5095A-

  1. Switch ON/OFF (0 = Charger OFF)
  2. Charge current display (I > 12 A)
  3. Charge current display: battery partially charged > 90%
  4. Charger sustain, lights up green when battery is charged
  5. Interference indicator
  6. Support mode indicator
  7. Support mode/normal mode selector switch
  8. Charger cables, red charging clamp "+", black charging clamp "-".
  9. Battery type selector switch (base of loading devices)

Volswagen Tiguan. Battery Charger -VAS5095A-

Battery, Charging with Battery Charger -VAS5095A-

Special tools and workshop equipment required

  • Battery Charger -VAS5095A-

WARNING

Risk of injury. Follow all Warnings and Safety Precautions.

Caution

While charging, always set the battery type to 2.4 V/C (Volts/Battery Cell)! This applies to all batteries.

Note

The battery temperature must be at least 10 ºC (50 ºF).

WARNING

Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.
  • Turn off the ignition and all electrical consumers.
  • Check the battery type setting on the battery type selector. It must be set to 2.4V/C (Volts/Cell).
  • Clamp the red charging clamp "+" of the charger to the positive battery terminal.

Note

In the case of vehicles with a start/stop function and an installed Battery Monitoring Control Module -J367-, the black charging clamp "-" must be connected to the body ground. The start/stop system will malfunction if it is connected to the negative terminal on the battery.

  • Connect the black charging clamp "-" of the charger to the negative battery terminal.
  • Switch on the battery charger.
Charge current displays. Refer to → Fig. ""Battery Charger -VAS5095A- ""-2- and -3- light up yellow. When only the yellow LED -3- is lit, the battery is partially charged (approximately 90%).

If the green LED. Refer to → Fig. ""Battery Charger -VAS5095A- ""-4- is also lit, the charger has switched to the charge sustain function. The battery is charged.

  • Switch off the charger.
  • Remove the charger clamps from the battery terminals.

Severely Discharged Battery, Charging with Battery Charger -VAS5095A-

WARNING

Risk of injury. Follow all Warnings and Safety Precautions.

The charger recognizes the severely discharged battery automatically and starts the charging process conservatively with low charging current. The charge current is automatically adjusted to the battery charge state.

Note

  • Observe the notes in chapter.
  • Severely discharged batteries in vehicles must be replaced prior to delivery. Pre-existing damage cannot be ruled out.
  • The battery voltage must be at least 0.6 V!

WARNING

Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be

  • Charge the battery.

Support Mode with Battery Charger -VAS5095A-

General Information

The support mode provides the vehicle electrical system with voltage when the battery is removed or disconnected.

For more information. Refer to Battery Charger -VAS5095A- Operating Instructions.

The support mode is used for the following situations
  • Vehicle electrical system support mode with the battery not installed
  • Maintaining the voltage when the battery is being replaced
  • Testing without the battery

WARNING

Risk of injury. Follow all Warnings and Safety Precautions.

WARNING

Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced

  • Turn off the ignition and all electrical consumers.

Caution

  • The polarity protection of the charger clamps is not active in the operation mode "charging severely discharged batteries/Support mode". Connect the charger clamps to the battery terminals correctly according to polarity!
  • It can result in sparks due to short circuit.
  • This constitutes an explosion risk.
  • Make sure the charger clamps are secure.
  • Do not touch START/STOP when battery cables are incorrectly connected! The charger can be damaged.

Remove the battery.

Caution

Whenever the battery is removed, be careful to prevent contact between the connected charge clamp on the positive terminal and the body ground. Likewise prevent contact between the battery terminals.

  • Connect the red charging clamp "+" to the vehicle positive terminal.

Note

In the case of vehicles with a start/stop function and an installed Battery Monitoring Control Module -J367-, the black charging clamp "-" must be connected to the body ground. The start/stop system will malfunction if it is connected to the negative terminal on the battery.

  • Connect the black charging clamp "+" to the vehicle negative terminal.
  • Check the battery type setting on the battery type selector normal mode/support mode. Support mode must be on.
  • Verify that the charger clamps are connected to the correct polarity.
  • Switch on charging unit.

The charger begins the support mode.

End Battery Support Mode

  • Turn off the charger.
  • Remove the black charging clamp "-" of the charger from the negative battery terminal of the vehicle.
  • Remove the red charging clamp "+" of the charger from the positive battery terminal of the vehicle.
  • Pull out the electrical system connector of the charger.

Battery Charger -VAS5095A- Maintenance Charging

WARNING

Risk of injury. Follow all Warnings and Safety Precautions.

WARNING

Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.

During maintenance charging, the Battery Charger -VAS5095A- provides safe charging and preserves the charge of the battery.

  • Proceed as when charging the battery.

Note

  • If the battery is discharged by an electrical consumer during maintenance charging, the Battery Charger -VAS5095A- automatically supplies the appropriate charge.
  • Maintenance charging can be performed without time restrictions.
  • The battery can be used constantly.
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