1989 BMW 735i

Please,
I am new to BMW and this is my first car as BMW I need some help on
the heater not working , is there any fuse for the heater.
radio was working fine after I disconnect the batterie now asking me for the code.
that is for now its a great car good looking I love it please help to be part of the team
thank you all for your support
rach

If you do not have the radio code, usually in the owners manual on a credit card sized card you will have to get it from the dealer. He will require a registration in your name and ID. Sure the heater is fused, you do not define the symptoms?

Thank you for the info is there any special tool to pup the radio dealer will charge me $145 for the code if they remove the radio to get the serial# if I remove the radio it will be free to get the code.
I dont have any heat in the car I am using another car for now its really cold now.
the fuse is good i did checked it. please any help will be appreciated.
thank you all for your support

Ah. Cant help you on that one, sorry.