I want to get the air con going again in my EK4 but due to the value of the car am not willing to shell out the 800 sheckles wanted to replace the system. I am sure there is a leak in the condenser (had regassed and gas escaped over 3months) and subequently the refrigerant is leaking out and the air is not being cooled. Are there any pitfalls in buying a second hand condenser from a wreckers? If I get a 3 month warranty I imagine any leaks will be obvious in that time frame.
Second is there a step by step guide for swapping out the old condenser with a new one? I would like to do the job myself but have limited experience. Any help would be awesome. I will try to document the process with photos , text and video to give back should anyone else want to do the job.

thanks