After this "snow event" we just had in VA I saw a few drops of green in my driveway. I traced it down to a tiny Pinhole under the plastic bracket where the high-pressure line runs through it.
The dealer has the parts in stock to do the TSB compression fitting fix but I refuse to spend $800 for something I can do myself. I cutout the bad line and used two 5/16 compression fittings and a length of brake line to repair it. I pressurized the system with a can of freon I had laying around to make sure it held pressure before spending the money to have it vacuumed and charged. Pics below...
No problem. I used two brass 5/16 compression fittings and a length of 5/16 brake line. I got the fittings from Lowe's, and the brake line from Advance Auto Parts. I pressurized the system to test for leaks with a can of freon from Advance Auto Parts. It will build pressure QUICKLY so press the button in short bursts checking pressure periodicity.
***NOTE*** pressurizing the system in this case is simply to test/check your repair. The system will have to be vacuumed and pressurized by qualified personnel before normal operation.
It's been 4 days since the repair and its held pressure perfectly. My friend who owns a shop will vacuum and charge the system for me, so all in all this repair will total out at less than $100 to include the freon.
Quick update. The system has been vacuumed and recharged for a few days now with ZERO issues. Working like a champ.
My local dealer has the parts in to do the TSB repair that Nissan put out to address this issue but as I stated earlier, I am NOT spending $800 to have them do something that I can do by myself.
Yes. The rear A/C line corrosion is an issue that is known by Nissan. It seemingly occurs mainly to vehicles in the "salt" regions where chemicals are used on the roads in winter.