AC not working in my RS5?

**vexa27** · 04-22-2016 11:04 AM

We finally got warm weather here in NH. I pressed the AC button, it lit up but would turn off as soon as I let go of the button (AC itself would not function). I'm assuming this means there must be an issue with the AC? Any other people run into this?

**Slobo7x** · 04-22-2016 11:24 AM

I have the exact same problem with my S5, but I have 0 Freon in the system due to removal of the AC lines.

I'd say check the Fuses, then have someone at the auto parts store check your Freon level. Hopefully it's not the AC compressor issue, as that's a major PITA to replace.

**Mops@Nemesis** · 04-22-2016 11:32 AM

I had it once. Wire/connection came undone. Shop said it was a 5 minute fix.

**Slobo7x** · 04-22-2016 11:58 AM

Wire connection at the AC switch panel?

**pr1malr8ge** · 04-22-2016 12:07 PM

My 13 had an issue where one fuse knocked out the AC and the over head lighting. if your "dome" light doesn't turn on might be due to that.

**plat** · 04-22-2016 12:22 PM

As with most AC systems after hibernating all winter, it is most likely that the refrigerant has leaked out of the system. It happens because the lubricating oil in the HVAC system is not being circulated (i.e., AC remaining dormant for several months) and it makes the rubber seals dry up. When this happens, the gas leaks out. It is a good habit of using your car's AC system, at least, once a week for 10 minutes. When the A/C system is recharged with fresh refrigerant, it will include the lubricating oil. After getting a fresh charge of refrigerant, it is good to have the technician go over the A/C system pipes and joints using a leak detector to make sure there are no gas leaks.

**Slobo7x** · 04-22-2016 12:40 PM

That's a good copy&paste info :)

Hopefully the issue for OP is simple like a fuse, or wire loose behind AC panel.. and for me as well lol

**Vanimal** · 04-22-2016 12:48 PM

I crossed my fingers when I turned mine on for the first time this year in my S5 the other day lol. Turned on, although it's probably smart to check my freon level I suppose.

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**jkownz** · 04-22-2016 01:34 PM

who needs AC? open up them windows and hear the sweet sound of a NA V8 at 8250 RPM.

**Vanimal** · 04-22-2016 01:45 PM

Originally Posted by jkownz

who needs AC? open up them windows and hear the sweet sound of a NA V8 at 8250 RPM.

Well that too of course if i am moving at a decent speed. But when that sun is blasting in the car and i am in crawl or light to light traffic. And my back starts to sweat like i am in a sauna on that leather seat, its time for the windows and moon roof to close lol. Those black leather seats can killer in the summer if you aren't moving fast in traffic. I have went into stores before with a full drenched back, sorry not sorry lol.

Some new cars have those snazzy seat coolers. Hell id use that more than the seat heater, only my fiance really turns hers on.

**d1amund** · 04-22-2016 06:56 PM

Originally Posted by jkownz

who needs AC? open up them windows and hear the sweet sound of a NA V8 at 8250 RPM.

{raises hand}. It was 93 here today. That'll be our low for the next 5 months lol

One of these days Audi will catch up with premium vehicles such as GM and Chrysler...I sure would love some cooled seats too!