[AlexJ]

Hi all,
I recently disassemble the four brake calipers to paint, as well as the ABS pump on the front trunk in order to clean the area.

Today I have been assembling all the parts.
After bleeding the calipers through the typical method (pumping the pedal to make the air out - no pressure machine was used) something strange happens:
After I bleed the four calipers the pedal feels fine with the normal hardness.
After I start the car, the pedal goes down and I have to pump it two times to have it hard again.
Does anyone knows what did I do wrong ? I have been using this method to bleed many G series cars and it always works...
Does it has to do with the fact of disassembling the ABS pump?
Thanks in advance for any help.