Removing
1. Disconnect the negative cable from the battery.
If the stereo system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the audio system!
2. Locate the control valve, usually located under the GTZ assembly.
3. Mark and disconnect the brake lines connected to the valve.
4. Remove the valve regulator and take it from an impellent compartment of the car.
Installation
1. Installation is carried out in the reverse order.
2. In conclusion, do not forget to bleed the brake system (see Section Bleeding the brake system).
3. Connect the negative cable to the battery and check that the brakes are working properly.