The plastic clip that the abs sensor snaps into has broke how could I secure it in, currently pushing down hard secures it for a while then the light on dash comes on after a few days?

Assuming it's the loom connector with the broken part, buy a replacement housing (part number will be somewhere on the existing one), de-pin the old housing and push the pins into the new one. 

Edited 28 April, 20215 yr by Wino