Battery With Fastened Fuse Holder, Disconnecting and Reconnecting

Battery With Fastened Fuse Holder, Disconnecting And Reconnecting


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

CAUTION:
- Always ensure the vehicle electrical system is protected by disconnecting the battery negative ( - ) terminal (interrupted current flow to ground) prior to servicing key areas of the electrical system.
- Do not loosen or remove ground strap from body. Disconnect terminal from battery only.
- Disconnecting the battery positive ( B+) terminal must only be performed as required to remove battery from vehicle, and must only be carried out after the negative ( - ) terminal is disconnected.
- When reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on performing OBD program and electrical system function checks.

Battery, disconnecting

CAUTION:
- Obtain anti-theft radio security code.
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Do not loosen or remove ground strap from body. Disconnect terminal from battery only.

- First disconnect negative ( - ) terminal from battery.
In order to disconnect positive ( B+ ) terminal, first remove fuse holder on top of battery:







- Press locking lugs together -arrows- and remove cover.







- Remove positive bus securing bolt -1- on (+) positive terminal clamp.
- Remove securing bolts -A- and remove cables to fuses, noting the installed positions.
- Disconnect electrical connection -2-.







- Relieve tension on fuse holder mounting in direction of -arrow A- and release clip with screwdriver in direction of -arrow B-.
- Lift fuse holder from battery.







- If necessary, remove screws -arrows- and remove cover -1-.







- Release battery positive (B+) terminal clamp fastener -arrow- and remove terminal from battery post.

Battery, reconnecting

Special tools and auxiliary items needed







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

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.

- Refit battery positive ( B+ ) terminal on battery positive post.
- Torque positive ( B+ ) terminal clamp fastener to 6 Nm.
- Fit fuse holder onto battery and install positive bus onto securing pins on battery positive terminal.
- Engage fuse holder clip in battery.







- Tighten securing bolt -1- for positive bus on positive ( + ) terminal clamp.
- Connect cables to strip fuses and tighten securing bolts -A-.

NOTE: Refer to appropriate wiring diagram for installed positions of cables to fuses if necessary.

- Refit electrical connection -2-.
- Only after the fuse holder and positive ( B+ )terminal have been secured should the negative ( - ) terminal clamp be installed.
- Torque negative ( - ) terminal clamp fastener to 6 Nm.







- If necessary, reinstall cover -1- with screws -arrows-.
- Perform work steps specified in table.