[chittychittybangbang]

Metalnerd.com's crank yank. VW also sells a tool but it only holds 2 of the bolts instead of 4. Once you see how much force is involved in removing it you'll see that 4 is better.

I can rent it because it's such an expensive tool, send a PM. Here is a DIY tool HermTDI made (pic used with permission) It's a piece of old flywheel ring gear welded to a piece of metal that slips in the flywheel TDC inspection hole.

 

[chittychittybangbang]

IMHO I wouldn't do that. If something slips or the crank is jarred it will cause damage. Not trying to make the sale but it's not worth the risk. It's also best to not use an impact wrench because it might shock the crankshaft.