The story go's like this, rear coil spring broke on my car,i replaced only that spring with one from another A4 ,and noticed car was sitting 1 inch higher that side.(oh dear,should of replaced both) anyway i left it like this for around 6 months (passenger side rear 1 inch higher than rest of car) After 6 months i decided to change all the springs in the car and replaced with 40mm koni springs. I also got 2 front shockers fitted from a 54 plate tdi s-line. (leaving the rears standard) Now after the replacement koni's the passenger side rear still sits half to 1 inch higher I noticed the car wasn't sitting rite and took it back to the garage,they took back springs out and re-fitted them. cars still the same drivers side rear is ok,passenger side still higher.......you guys tell me what it could be?