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Instructions for replacing

3 & 4-Volt Batteries

What you need:

  • Torx 25 chisel

To make the work easier, it is also recommended:

  • Dismantling tool / Plastic pick
  • Pin chisel or similar narrow tool/chisel

Safety regulations

Please read this safety instruction before installing your battery.

If the battery should emit an unusual odor, change color, shape, or exhibit any abnormal behavior before or during installation, do not use it !

If battery fluid gets in your eyes, flush with clean water and consult a doctor.

Only install the battery in the intended location, which is in the VoC unit.

Never store the battery near fire, excessive heat, in direct sunlight, snow or extreme cold as this can cause overheating and significantly reduce the battery's performance and lifespan .

Never place the battery in a microwave oven or any high-pressure generating device.

Never let the battery's positive and negative cables come into contact with each other.

Do not expose the battery to damage or liquids.

Should you drop the battery on the floor, wait about 10 minutes before installing it to ensure that the battery does not start to emit heat, change shape, color, or show any other abnormal behavior.

The battery has a built-in protection mechanism that ensures safe use.

Never disassemble or modify the battery in any way. If it doesn't fit, it's the wrong model.

If the battery is disassembled and the built-in protection mechanism is damaged, there is a risk of overheating, fire and explosion .

Think about the environment

Both this replacement battery and the original battery can be recycled. Please take your used battery to your nearest recycling center.

  • Unscrew the small panel under the glove compartment, it is held in place with 2x T25.
  • Unplug the lamp if there is one, and set the panel aside.
  • Remove the two T25 screws hidden behind the panel.


  • Release the remaining T25 screws holding the glove compartment as shown.
  • Once all screws are removed, pull out the glove compartment a couple of centimeters and then disconnect the connector for the lamp.
  • Carefully pull the entire glove compartment outwards towards the passenger seat.

If it springs back, a wiring harness may be attached to the back with a clip - in that case, check behind the glove compartment and pull the wiring harness loose.

  • Once the glove compartment is removed, you will see the Phone Module itself, which houses the battery.
  • Use a small hook to pry open the door as shown.
  • Now you should see the old battery, disconnect it and replace it with the new one.
  • Reassemble everything in reverse order.

Once everything is reassembled, you need to register a battery change in the phone module for the error message to go away.

This can be easily done with Vida and a Super J2534 reader, but it also works with some universal readers such as Autocom and Autel.
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