assuming you're talking about full retrofit of AC into an E30 that came without AC. that means HVAC unit, compressor, hoses, wiring, etc. in addition to the bits I mentioned earlier, which you always have to update if you're converting an R12 system to R134a. It is 100% DIYable for a bas@ss dude like you. If you're talking about an E21 with an M10, you can retrofit a 318i AC system.
PM if you wanna chat further.
PM if you wanna chat further.
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