Audi Repair Questions? Ask a Mechanic for Answers ASAP
Hello. Unfortunately what most likely happened is the pistons hit the valves and bent them. Improper installation of a timing belt usually does result in serious engine damage. Sorry to be the bearer of bad news. If that's what happened, the cylinder heads would need to be removed and the valves replaced.
OH, don't worry about that. Those offers are automatically sent out. We (the experts) have no control over that. You will not be charged for a phone call.