The brake bleeding function is only performed if it is suspected that air has entered the ABS-system's hydraulic unit, or in case of reduced brake function when the ABS-system has activated the ABS-function.
Note:
Check all hydraulic connections and couplings if the ABS hydraulic unit has been replaced.
Make sure that the battery is charged. Low battery voltage may impact the brake bleeding process.
The system shall be pre-bled before the function is performed.
After bleeding the brake system, also bleed the brake calipers!
Test conditions:
Battery voltage above 11.5 V.
Ignition on, engine off.
Procedure:
Select the function: "Bleeding brake system".
Bleed the brake system with the following functions and order sequence:
"Bleeding brake system front", thereafter function: "brake system brake caliper front".
"Bleeding brake system rear", thereafter function: "brake system brake caliper rear".
The bleeding sequence is now activated and the following check steps and instructions will be shown:
Ensure that necessary steps, according to help file, are performed.
Ensure that the system has been pre-bled.
The function continues with bleeding front/rear.
Press down and let up the brake pedal until the system is emptied of all air.
Close front/rear left and right bleed nipple.
The function is done. Repeat the procedure if any air remains in the system.