If your AC switch is to the left of the steering wheel then you have an aftermarket/ dealer installed and not factory. So the tie into the radiator van is most likely just an open from where the AC was tied in. 
    I doubt you will find it in Bentley and you may have to do a little detective work to find where the open is. 
        It is a simple system and should be easy to track down.

                                       Stacy 

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> On Oct 14, 2017, at 4:51 PM, Mark Hersh <cmwolfsburg@GMAIL.COM> wrote:
> 
> blinked.