There's no A/C cutoff-funny, 'cuz my '82 Mustang GT shut off the A/C under WOT.

I'd be willing to bet your monobelt is slipping...how's the tensioner look? First place you should check....if the system detects any slippage, it takes the A/C offline

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo