ABS - juddering when breaking (Citroen)?

[Mme Choc]

My Citroen C3 has ABS and when I break it judders for the first few seconds then seems to kick fully. My garage says that's how ABS works but it really vibrates, so things in the car all bounce about, I am sure it isn't meant to do it that much is it??? Also they feel quite 'scrapey' but I had new break pads a couple of months ago.

 

[Jon F]

ABS should only be used under hard breaking. normal breaking should not cause the ABS system to kick in. you may have a bad sensor, or even control module. and the ABS should not cause your car to shudder, it should just make your break pedal to fluxuate.

 

[burn]

It sounds more like your front discs causing brake judder rather than an ABS problem.
The ABS should only cut in when the brakes are pressed very hard, however the discs, if slightly distorted would cause this problem whenever you brake.
The only solution is a new set of discs.