B21 said:
Sounds like they didn’t assemble the new springs correctly…if the springs were ordered as a pack than re-assembly is the most likely cause..unless that damper (on the broken spring) was compromised..I assume at that price they would have checked everything perfectly…
If its the rear that isnt sitting properly there isnt really any assembly involved.
The spring and damper are seperate from each other.
Basically to fit the rear spring almost all thats needed is to jack the car up, remove the wheel, undo the bottom damper mount and then while levering the wheel hub,disc etc down pull out the spring. To install lever the hub,disc etc down and put the new spring in place.