TDC setting on A6 2.7t
 

I am sure this has been asked, but I cannot find the photos I need.

So I am doing a valve cover gasket cam seal timing belt job on my daughters 2001 Audi A6 2.7t and I have lost TDC on the cams. If I remove the cams and spin the crankshaft to TDC and then reinstall the cams at TDC will this solve my problem? Also where is the TDC on the flywheel, I know where it is on the front of the crank shaft serpentine pulley, but I cannot find it on the flywheel. Any Help with photos would be appreciated.