Battery, Removing and Installing

Battery, Removing And Installing


CAUTION!
Before beginning repairs on the electrical system:
- Obtain the anti-theft radio security code.
- Switch the ignition off.
- Disconnect the battery Ground (GND) strap.
- After reconnecting battery, re-code and check operation of anti-theft radio.


Special tools, testers and auxiliary items needed







- VAG 1331 Torque wrench (or equivalent 5-50 Nm)

Removing
- Open front hood and remove cowl panel.







- Slide battery cover -1- in direction of -arrow A- and remove.
- Remove rubber seal -2- in direction of -arrow B-.
- Pull cover -3- forward and remove.







- Disconnect negative GND terminal -arrow- from battery negative (-) post.
- Then disconnect positive B+ terminal from battery positive (+) post.







- Remove M8 x 25 bolt -arrow-.
- Remove battery hold-down bracket.
- If present, disconnect central gas vent hose from top cover.
- Carefully lift battery from plenum.

Installing







NOTE: New generation batteries are equipped with a central gas venting system and integrated flame trap -arrow-. Function: Gases produced during charging escape through a central opening on the side of the upper cover. The integrated flame trap prevents flammable gases in the battery from igniting. The flame trap is comprised of a small round fiberglass mat with a diameter of 15 mm and a thickness of 2 mm. Working as a one-way-valve, it allows gases produced during charging to vent.







- Install hold-down bracket and torque M8 x 25 bolt -arrow- to 22 Nm (16 ft. lb.).
- Connect positive B+ terminal to battery positive (+) post.


NOTE:
- In order to prevent damage to the battery housing, battery terminals must be placed on battery posts without using force (by hand only).
- Battery posts and terminals must no longer be greased.
- Torque battery positive B+ post/terminal nut to 6 Nm (53 in. lb.).
- Only after connecting positive B+ terminal, proceed to connect negative GND terminal -arrow- to battery negative (-) post.







- Torque battery post/terminal nut -arrow- to 6 Nm (53 in. lb.).


CAUTION!
If battery is not secured properly, the following will result:
- Shortened battery service life due to vibration damage.
- Battery cell and plate damage.
- Electrolyte leakage due to battery case damage.
- Poor collision safety.


- If present, reconnect central gas vent hose to top cover.
- Reinstall cowl panel.