thanks for your replies guys, here's more info; the tires are fairly new (6months old), cambers have been checked already (fairly good, no adjustments needed according to the mechanic who checked them), and one mechanic I've consulted wanted to take a look at all the shocks(front/back) he suspects that 2 of the shocks are defective front left and right rear or front right and left rear this could be the reason why the car is beeing pushed up and down in a diagonal manner, comments anyone?