Battery, with Auxiliary Battery or Two-Battery Layout, Disconnecting and Connecting

Battery, with Auxiliary Battery or Two-Battery Layout, Disconnecting and Connecting

CAUTION!
Risk of injury. Observe warning notes and safety precautions --> [ Warnings and Safety Precautions ] Vehicle Damage Warnings

A maintenance-free battery with charge indicator (visual indicator) is installed under the drives seat. In addition, an Absorbent Glass Mat (AGM) sealed battery is located in the luggage compartment spare wheel well.

Battery Disconnecting Sequence

CAUTION!
Disconnecting and reconnecting batteries on a dual battery system MUST be performed using the following step-by-step procedure, in the sequence given. Failure to adhere to the following procedure will result in the deactivation of Main Battery Switch -E74- and subsequent damage to electrical system components.

- --> [ Battery under Left Front Seat, Disconnecting ].

- --> [ Second Battery or Auxiliary Battery in Luggage Compartment, Disconnecting ].

Battery Connecting Sequence

CAUTION!
• Disconnecting and reconnecting batteries on a dual battery system MUST be performed using the following step-by-step procedure, in the sequence given. Failure to adhere to the following procedure will result in the deactivation of Main Battery Switch -E74- and subsequent damage to electrical system components.

• Battery terminals must not be greased.

- --> [ Second Battery or Auxiliary Battery in Luggage Compartment, Connecting ].

- --> [ Battery under Left Front Seat, Connecting ].

Battery under Left Front Seat, Disconnecting

• To disconnect battery, anti-theft warning system must be deactivated --> [ Anti-Theft Alarm System, Activating and Deactivating ] Anti-Theft Alarm System, Activating and Deactivating.

• 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 as specified in this Repair information. 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. Observe notes for connecting battery in any case.

- Switch off ignition, switch off all electrical consumers and remove ignition key.

- Remove the left front seat rail cover.

- Remove the left front seat trim

- Remove screws - arrows -.





- Tilt seat frame and seat to rear - arrow -.





- Remove screw - 1 - and remove air guide - 2 -.





- Open battery box clips - arrows - and remove cover.





- Disconnect negative (-) terminal - 1 - from battery.





- Disconnect positive (B+) terminal - 2 - from battery.

Second Battery or Auxiliary Battery in Luggage Compartment, Disconnecting

- Lift and remove luggage compartment floor cover - arrow -.





- Open retaining clips - 1 - and remove nuts - 2 - on right side of battery cover.





- Open retaining clips - 1 - and remove nuts - 2 - on left side of battery cover.





- Remove retaining strap nuts - arrows -.





- Remove retaining straps.

- First, disconnect negative (-) terminal - arrow - from battery.





- Then disconnect positive (B+) terminal - arrow - from battery.





Second Battery or Auxiliary Battery in Luggage Compartment, Connecting

Special tools, testers and auxiliary items required

• Torque Wrench (V.A.G 1331/)

- Refit battery positive (B+) terminal - arrow - on battery positive post.





- Tighten the battery positive terminal bolt to the specification --> [ Battery ] Battery.

- Only after the positive (B+) terminal has been secured should the negative (-) terminal clamp - arrow - be installed.





- Tighten negative terminal clamp screw to specified torque --> [ Battery ] Battery.

Battery under Left Front Seat, Connecting

Special tools, testers and auxiliary items required

• Torque Wrench (V.A.G 1331/)

- Refit battery positive (B+) terminal - 2 - on battery positive post.





- Tighten the battery positive terminal bolt to the specification --> [ Battery ] Battery.

- Only after the positive (B+) terminal has been secured should the negative (-) terminal clamp - 1 - be installed.

- Tighten negative terminal clamp screw to specified torque --> [ Battery ] Battery.

- Replace seat frame bolts - arrows - and tighten them to the specification --> [ Battery ] Battery.





- Install the left front seat rail cover.

- Install the left front seat trim.

- Perform work steps according to table: --> [ After Connecting Battery, through 11.06 ].

After Connecting Battery, through 11.06





After Connecting Battery, through 12.06