Think i've found what the problem is. After about 15 min of driving tonight i could smell like a burning smell so pulled over to have a look around the car.
Got round to the passenger side and heat from the front brake was unreal compared to the others. I put a light on it and could clearly see the pad was stuck to the disc and melting off the heat.
Luckily i just bought a S3 front brake setup off here
so hopefully this is what the juddering was off.