Since I bought my car, the AC hasn't worked.   I initially had it checked for leaks and regassed, but that didn't solve it. I then had a diagnostic check on it, and it was a failed compressor that caused the gas to leak out.   My condenser doesn't look in the best of shape, with battered and flatted fins from stones etc, so I'll replace that at the same time.   Apart from the compressor and condenser, are there any other bits that should be done at the same time as a matter of course?