The car seats because of the extra energy it needs for the AC compressor work
Yes. They do. The Diablo's was pointless, but newer ones have ac's that work.
when it doesnt work
They are separate systems...
Because the two systems work independantly of each other. Check there is enough water in the engine coolant resevoir. That is the most common reason why the heating doesnt work in a car
Take the car to a garage that services AC. There is costly equipment and knowledge needed to do AC work correctly.
Get a new adaptor.Source: What you said + common logic
the system needs to be recharged with refrigerant
is this an espresso maker for a car? if so its a pretty large heating element and will need 12v at about 30A it doesnt matter if its dc or ac to power the heater the ac espresso makers are around 1000w and will make more faster heating appliances need lots of power and dont care about ac or dc its easier to get one in the correct voltage
it dont work if you buy second hand if it new then tell shopkeper or phone uplay
it filters the outside air so that your car can use it for ac and not have to work so hard
I have a 98 with rear ac. I had to replace a blower $165 from a local mechanic.