One problem related to vehicle shudder has been reported for the 2008 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Audi A4 based on all problems reported for the 2008 A4.
When coming to a complete stop, the car shudders while going into 2nd and 1st gear as if someone has just rear ended the car. Took the Audi to an authorized dealer in my area and findings are that it is the mechatronic that is defective. Finding is that is a very common problem and Audi is not taking any action after contacting aoa. Repair cost is $2700.