I think the Germans need to be prepared to use, and risk, their Mortars, Pz IIs, IVs and 38(t)s to silence positions that can see the river and east bank. Perhaps even exchange them in the process.
Not having the played the Germans yet I can only look at the VCs and what the Germans have. In my view, German infantry is at a premium, they do not have a huge amount (not surprising in a 1940 Pz div), while vehicles are almost expendable until the river is bridged.
I'm only theorising but the Afternoon scenario would appear to still be a matter of clearing the heights of the French while delaying he installation of an 8-ton bridge over the river almost to the last moment.
Maybe burn down some buildings to create smoke?? That should help with the bridging efforts at your chosen point.