2002 Sharan .... a/c confused of how much gas to put in, has two amounts??

[AliBailey88]

Replacing a a/c condensor on a 2002 sharan in the morning. I looked at the a/c label under the bonnet to see how much refrigerant the system takes, and there is two amounts 750g and 1050g iirc. I presume 750 is without dual zone climate and 1050 is with dual zone climate? If it has dual zone climate do you just fill it from the engine bay (no hidden ports at the rear?)

Thanking you x

[towcestervag]

there are 2 types of aircon
some cars have 2 evaporators
if you take out the n/s/r interior cover in boot you will see the other evaporator or look for aircon hoses going into back of car