Talk about power drain... the "power" that my diesel makes is noticeably less when the A/C is on. At least I can feel especially when trying to make a pass.

However, it was about 95 today + super humid air and it was nice to have A/C...

I used to turn it off when my rear windows used to work as the cabin was very airy with all the windows down. Can't wait til they work again.

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2008 BMW 335i Coupe