Audi Q5 Owners & Service Manuals

Audi Q5: Battery Charger -VAS5900- Service Charge

  WARNING

Risk of injury. Follow all warning messages and safety precautions. Refer to → Chapter "Warnings and Safety Precautions".

  Caution

"Service charging" is not permitted for VW vehicles, because voltage surges can damage the on-board electronics.

The Battery -A- must always be disconnected from the vehicle electrical system when using the "service charge" mode.

  WARNING

Do not check or charge a Battery -A- when the visual indicator has "no color or is bright yellow". Jump starting must not be used!

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

These Batteries -A- must be replaced.

  Caution

Always set the mode that corresponds to the Battery -A- during the charging process. Refer to the Battery Charger -VAS5900- Operating Instructions.

"Service Charging" is suitable for:

Wet batteries having a visual indicator which allows charging (visual indicator black or green).

The "Service charge (SERV)" mode is only used with sulfated Batteries -A-. The Battery -A- with voltages greater than 14.4 V is charged. A partial removal of the sulfation layer can result from this. Check the visual indicator after charging, immediately before the Battery -A- is used. Refer to → Chapter "Visual Indicator Color Display, Checking".

Special tools and workshop equipment required

  • Battery Charger -VAS5900-

  Note

The Battery -A- temperature must be at least 10 ºC (50 ºF).

Procedure

- Turn off the ignition and all electrical consumers and remove the ignition key.

- Connect the Battery Charger -VAS5900- to the power supply. The last selected mode is shown on the display. Refer to → Chapter "Battery Charger -VAS5900- Device Description".

- Set the battery type with the INFO button.

The symbol -1- for "service charge of wet batteries" or the symbol -2- for "service charge of Gel/Absorbent Glass Mat (AGM) batteries" is indicated in the display.

- Set the battery capacity (Ah) on the Battery -A- to be charged with the corresponding ↑ button or ↓ button.

- Connect the red charge terminal (+) to the positive terminal of the Battery -A-.

Audi Q5. N27-10179

  Note

On vehicles with a Start/Stop function and an installed Battery Monitoring Control Module -J367-, the black charge terminal (-) must be connected to the body ground. The Start/Stop system will malfunction when it is connected to the Battery -A- negative terminal.

- Connect the black charge terminal (-) to the negative terminal of the Battery -A-/negative connector.

The Battery Charger -VAS5900- recognizes the nominal voltage of the connected Battery -A- (6 V/12 V/24 V) and begins the charging process automatically.

The Battery Charger -VAS5900- begins the "final charging" when the charge level is approximately 80 to 85 % of the battery voltage. The fourth bar is indicated on the display -1-. The Battery -A- is now ready to be used.

Audi Q5. N27-10170

  Note

A successful "service charge" depends on the degree of sulfation on the Battery -A-.

Possible malfunctions and how they are handled

1 - Displayed voltage does not match the nominal voltage:

- Hold down the ↑ button or ↓ button until the charging process begins.

2 - Displayed battery voltage does not match the nominal voltage - the charging process has already begun:

- Press the START/STOP button two times.

- Hold down the ↑ button or ↓ button until the charging process begins.

3 - The charger does not recognize a Battery -A-, when the battery voltage is less than 2 V:

The display remains unchanged.

The set operating mode and Ampere-hours (Ah) are displayed.

Battery -A- charging, ending

- Press the START/STOP-button.

- Remove the charging clamps from the battery terminals.

- Disconnect the Battery Charger -VAS5900- from the power.

Severely Discharged Battery, Charging with Battery Charger -VAS5900-

  WARNING

Risk of injury. Follow all warning messages and safety precautions. Refer to → Chapter "Warnings and Safety Precautions".

  WARNING

Do not check or charge a Battery -A- when the visual indicator has "no color or is bright yellow". Jump starting must not be used!

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

These Batteries -A- must be replaced.

  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!
  • Always set the mode that corresponds to the Battery -A- during the charging process. Refer to the Battery Charger -VAS5900- Operating Instructions.
  • The Battery Charger -VAS5900- does not recognize the severely discharged Battery -A-. Refer to → Chapter "Severely Discharged Batteries".
  • Do not touch START / STOP button when battery cables are incorrectly connected! The Battery Charger -VAS5900- can become damaged.

The Battery Charger -VAS5900- will not automatically recognize the Battery -A- for Batteries -A- with a voltage less than 2 V.

Special tools and workshop equipment required

  • Battery Charger -VAS5900-

  Note

  • For information in the chapter. Refer to → Chapter "Severely Discharged Batteries".
  • The Battery -A- temperature must be at least 10 ºC (50 ºF).
  • Severely discharged batteries in vehicles must be replaced prior to delivery. Pre-existing damage cannot be ruled out.

Procedure

- Turn off the ignition and all electrical consumers and remove the ignition key.

- Connect the Battery Charger -VAS5900- to the power supply. The last selected mode is shown on the display. Refer to → Chapter "Battery Charger -VAS5900- Device Description".

- Set the battery type with the INFO button.

The symbol -1- for "service charge of wet batteries" or the symbol -2- for "service charge of Gel/Absorbent Glass Mat (AGM) batteries" is indicated in the display.

- Set the battery capacity (Ah) on the Battery -A- to be charged with the corresponding ↑ button or ↓ button.

- Connect the red charge terminal (+) to the positive terminal of the Battery -A-.

Audi Q5. N27-10169

  Note

On vehicles with a Start/Stop function and an installed Battery Monitoring Control Module -J367-, the black charge terminal (-) must be connected to the body ground. The Start/Stop system will malfunction when it is connected to the Battery -A- negative terminal.

- Connect the black charge terminal (-) to the negative terminal of the Battery -A-/negative connector.

- Press the START/STOP button for about 5 seconds. The menu selection "Charging severely discharged batteries/Support mode" is activated.

- Press the corresponding ↑-button or ↓ button to adjust the battery voltage(6 V/12 V/24 V).

  Note

If no button is touched within five seconds, the Battery Charger -VAS5900- will return to the main menu (operating mode selection).

- Select the battery voltage by pressing the START/STOP button.

Then the inquiry about the correct polarity of the charging clamps is made.

- Check correct polarity connection of charger clamps.

- Confirm charging clamps are connected to correct poles via START/STOP button.

The Battery Charger -VAS5900- starts to charge the severely discharged Battery -A-.

Battery -A- charging, ending

- Press the START/STOP-button.

- Remove the charging clamps from the battery terminals.

- Disconnect the Battery Charger -VAS5900- from the power.

    READ NEXT:

     Battery Charger -VAS5900- Support Mode

    General Information The support mode provides the vehicle electrical system with voltage when the Battery -A- is removed or disconnected. For more information. Refer to the Battery Charger -VAS5900-

     Battery Charger -VAS5903-

      WARNING Risk of injury. Follow all warning messages and safety precautions. Refer to → Chapter "Warnings and Safety Precautions".   WARNING Do not check or charge a Battery -A

     Battery, Charging with Battery Charger -VAS5903-

      WARNING Risk of injury. Follow all warning messages and safety precautions. Refer to → Chapter "Warnings and Safety Precautions".   WARNING Do not check or charge a Battery -A

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