I have a 240D, manual, with a new engine and live in Houston, when I replaced the engine I did not re-install the AC. This car is not designed and can not cope with the AC load in Houston traffic & heat, pure and simple. I drive a 210 E320 when I need AC, the 240D is my commuter car and I am used to driving without AC. I know, this sounds insane, but if you want cold air you bought the wrong car.

Vahe
240D 77 / 350K