Battery With Fastened Fuse Holder, Removing and Installing

Battery With Fastened Fuse Holder, Removing And Installing

WARNING: Prior to handling or servicing batteries, read, understand and observe the Warning and Safety measures for lead-acid batteries.

Special tools and auxiliary items needed







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

Battery, removing
- Disconnect battery.







- Battery insulation jacket -arrow- can only be opened and removed (where applicable) after first removing battery terminal clamps from battery.







- Remove bolt -arrow-.
- Remove battery hold-down bracket.
- If present, disconnect central gas vent hose from top cover.
- Carefully lift battery from engine compartment.

Battery, installing
To ensure battery seats securely, only install batteries with a 10.5 mm battery foot strip and adhere to the following work sequences:







- Install battery so battery carrier lug -arrow- engages in battery foot strip cut-out -1-.

It must not be possible to move a battery to the left or to the right.







Battery is inserted correctly when center cut-out in battery foot strip aligns with threaded hole in battery carrier -arrows-.

- On batteries with a hose for central venting ensure that the hose is not squashed. Only then can the battery vent freely.
- On batteries without a hose for central venting ensure that the opening on the upper side of the battery cover is not blocked.

NOTE: New generation batteries are equipped with a central gas venting system and integrated flame trap. 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 with bolt (tightening torque: 25 Nm).
- Reinstall insulation jacket where applicable.
- Reconnect battery.

CAUTION:
Results of inadequately secured battery:
- Shorter battery service life due to vibration damage.
- Battery cell and plate damage.
- Electrolyte leakage due to battery case damage.
- Poor collision safety.