I set out last night with bubble formula to find the leak. In the process I opened up some connections, re-lubed the o-rings and closed them back up. To my surprise, this morning the vacuum was still holding. Maybe I fixed it after all. I'll let it sit over the weekend and check on Monday where things stand, if it still holds, I'll put in a new drier, pull vacuum and charge with cheap-o Canadian refrigerant.

If that does the trick, I'll have a nice and cool summer car.

xp

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1985 190E 2.3L - a constant project.