Hi I have Skoda Superb 170 DSG and I am having serious vibration problems at speeds of 65 miles per hour and above. The mileage on the car is 140000 miles and is used daily as my taxi for my business. I've started hearing a catching noise on tick over when the engine is cold about 30000 miles ago and steadily the vibration has been getting worse. I have the wheels balanced and a four Wheel track done on a regular basis. I have read other topics from similar other VAG vehicles with this engi