1987 325i Ac compressor swap questions

[mgbrv8]

Okay what I understand I will need a for the conversion

• Sanden SD508 compressor
• I will make the mounting brackets
• Make new hoses
• A parallel tube condenser
• a new filter dryer

Am I missing anything also where do people get there hoses made I was wondering if I could get them crimped at a hydraulic hose supply?

Dave

[ELVA164]

Pressure switch, you can do the evaporator if you want but that usually isn't a factor (blow it out with alcohol and air though). A radiator/AC shop should be able to do the hoses. It's best to make them with the car handy so you get the shapes/lengths correct. The Sanden fittings are not in the same place as whatever is coming out.

[mgbrv8]

Thank you Elva good point with the pressure switch do I look for one that is on a e30 that uses r134a?

David

[ELVA164]

Yes. There's also a writeup online about the wiring when converting from your current 2-wire switch to the new single-wire one.

[Jeffnhiscars]

The pressure switches are refrigerant specific.

ps this was a typo. The switches don't care where you use them

[mgbrv8]

The pressure switches are refrigerant specific.

Jeff is there a specific year that I should look to order for my 1987 325i ac conversion?

Dave

[Jeffnhiscars]

Not sur what you are referring to. You are upgrading and converting using after market parts. Figment is the same regardless of year.

Ive used Sanden and more recently a Seltec (5121 IIRC). The key is theybare designed for 134 so generate thenhead pressure to make them efficient. You should also get a 134 expansion valve (that's a must)