dmw 85 Euro S A/T

After getting the rear hatch to seal better, the A/C works MUCH better. It has always blown cold out the vents but the interior never really cooled off until now. Thanks for all the replies which has undoubtedly saved me a bunch of work and money! I'm definitely not going to install a rear A/C now that the front system is cooling the car well.

I've just posted a new thread about the rear hatch alignment problem I have:
https://rennlist.com/forums/928-foru...l#post10644304

davek9

+1 the Engine would need to be removed unless you find a really good TIG welder to "T" off Low and Hi side to supply the rear AC unit. Even then I don't believe there is enough room to do the work. Remove engine.

Also if you are going to fit new hard feed lines: there are two types of stock Rear feeds that I know of, one has a couplings under the belly pan/floor and the earlier model it's at the bottom of the Firewall.

Dave

dmw 85 Euro S A/T

I just want to follow up and say that even though it was over 100 degrees yesterday, I was able to switch the blower to a lower setting after cooling off the cabin a bit. HUGE difference after getting the rear hatch to seal better! Now I just have to figure out how to get the hatch to move forward on the car about 4mm.

syoo8

Greg, how "late" is late? '86.5 is late enough?

Would it still require the engine to be removed?

Randy V

Having the windows tinted with a quality metallic film will reduce interior cabin temperatures similar to adding a stock rear AC unit.

GB - interested in your retrofit kit - cost and ease of installation.

Tony

I live in vegas and rarely if ever use mine. I prefer the full cold of a single system blowing on me than the dual setup and a slight lose of cooling in the front associated with it.. save your money and bring your current AC system up to snuff.

dr bob

I run mine once in a while to keep oil on all the o-rings and make sure the rear expansion valve hasn't rusted closed. One of those whiles was a couple days ago in 100º+ temps and high (for us) humidity. I'd parked the car in the sun at my dad's house for a couple hours, and needless to say it was a bit warm inside. So I decided to add the rear system capacity and see if it made a difference.

Drum roll... It was barely noticeable. The front was doing it's normal great job on its own, but heat-soaked black car at 100º+ takes a while to cool, even with ~40º vent temps. As I drove, the temp in the car and the center vent temp both dropped, and ten minutes into the drive I shut off the rear system and slowed the front fan. Bottom line is that I'm not convinced the rear system is good for much other than cooling rear seat passengers and cargo.