The A/C on my E36 has stopped working, 2 months ago when you turned on the ac i heard a grumbling from the engine compartment, turned the ac off and it stopped. Shortly after that all the cold air stopped. I had it regassed and if was fine for about 2 weeks then the grummbling started again then it lost all its cold air again.
When i took it to be regassed the 1st time there was no pressure at all.
Any ideas, i must have a leak somewhere but am curious about the grummbling noise.
Many thanks