We have a 2012 Q5 2.0l T Premium Plus. 64,000 miles. Drove to Church today, not problem. Left Church an hour later and car had a hard time starting and was running really rough at 1,500rpm and lower. Had a check engine light. We straight to an auto parts store that read the code.

Code Read:
*Crankshaft postion -camshaft position correlation
* bank 1 sensor "A"
Explanation:
*Timing belt jumped
Probable cause:
*Failed camshaft actuator
* Blocked oil passage
* Check CKP sensor

So was due for an oil change anyway, so went home and did the oil change. Go to start it up and it is a hard crank still. Car starts but is still really rough and then I get an intermittent clacking sound. What could this be? Do I just need to have this towed into the dealer and do from there?

Thanks