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votes
3answers
68 views

What is the purpose of high pressure service port in cars ? Can we charge refrigerant into the system by high side service port?

I have read on internet and in Tesla Model S service manual book that we can charge refrigerant by high pressure service port (with gas charging machines or another way) as long as there is vacuum in ...
6
votes
1answer
264 views

Why does the air conditioning suddenly blow cold air?

I have a BMW 320i 2008. When I turn on the hot air and Automatic recycle, after a point, it blows cold air for 5-10 mins, then back to hot and so on. This doesn't occur when I put the recycle on. Any ...
1
vote
2answers
6k views

Where is the e46 AC drain hose located?

I've tried looking online, but I can't find a description and the images are too zoomed-in to tell exactly where the AC drain hose is. Another problem is that the hose might vary between generations. ...
4
votes
0answers
2k views

AC suddenly stopped working?

After few hours driving in town with a lot of traffic my AC was working fine, keeping low temperature inside. Then I had to stop the engine for few minutes and when I turned it on, although the AC ...
3
votes
1answer
857 views

How to know BMW e46 AC type

Apparently there are two types of air conditioning units - IHKR and IHKA - in BMW e39's. I'm curious whether there are different types in e46's and, if so, how do I find out?
2
votes
2answers
773 views

BMW e46 AC intake location(s)

Is the intake for the air conditioning unit the same (i.e. under the hood near the windshield wipers) as the regular cabin air intake? What about in recirculation mode?
2
votes
4answers
4k views

BMW e46 cabin air vent smells [duplicate]

The cabin vents smell like mold and mildew. It's worse during humid days. I'm pretty sure the AC has something to do with it (since it smells bad when I turn the AC off and keep the fans blowing) but ...