car too wobbly, and constant new sensors error.

Hello all, I am from India. So i own a Skoda superb 1.8 TSIelegance from 2011. I have had trouble free ownership since august 2011 when  I bought the car. Recently I had replaced the front suspensions. Got new ones from SACHS. Also changed the balance/link/stabilizer arms or rods however it is known.  I have noticed that the car is too wobbly at higher speeds. I was so frustrated with the authorised service in my country. 3 years back i had the same thing replaced from them and they charged me a hell of 2700 dollars, it was all well and dandy. two months ago the car use to have a clunk sound in the morning but not after that, i also noticed that they did not replace both the front suspensions but only on the right side(drivers side in india). I was furious but it was my mistake, so i got hold of an independent workshop that installed these SACHS susoensions and yes this time i had them checked. 

Coming to the problems. 

car doesnt feel as confident now at higher speeds, so i did wheel alignment and it was good a few days and now its back the same way, too much body roll.

secondly, checked on VCDS and there were no fault codes but now after a cold start in the morning i have ESP/ABS error which goes away after like 10 seconds or on a restart. can comebody help ? also after scanning from the VCDS strangely now th left window does not rolls up on single tap of the button from the drivers side but does from its own side.