knechtea

Hey guys, I need some help with diagnosing a problem. I just got back form european vacation and when I returned the passenger side seat makes this hissing noise for the first few minutes when the car is started then it subsides. The multi contour seats don't inflate any more so I suspect there is a hole in the air bladder or something. Anyone have any advice?

Hopefully, this won't be a big problem cause I also need to get the AC looked at since it doesn't blow cold any longer.

ruBENZ

Your seat may have a loose hose. It could be that simple. As for your AC; a common problem. Replace your blower motor regulator. Part# 210-821-15-51. Do not the price-point. Mine was 5 days from an expired warranty. Good luck.

knechtea

The fan still works fine there is just not cold air coming out. Also the AC makes a hissing noise as well. Do you think it's still the blower motor or just more Freon?

Yacht Master

Freon=R12

Your car should have R134a refrigerant in it, you can buy it at any part stores, Walmart, K mart.
You can check your state of charge here
http://www.eclassbenz.com/node/27

ruBENZ

Exactly how mine operated. Under short test by dealer, it was determined that it did not operate in increment values. Blower replaced, and 10 units of R134A applied. Perhaps you should have it tested as well. Good luck.