I don't know if the dealer book time differs from the crashbook/software (Mitchell). It looks as if the time to R&R is .9, however that does not include time to evacuate the system and recharge which takes an addtional 1.4.
1994 E500 (MY SUNDAY DRIVER)
1993 190E SPORTLINE LE W/ M104 SWAP
2000 BMW 528I (WIFEY'S CAR)
"Excuses are crutches for the unfounded."