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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +)

VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +) Discussions area for the Mk7 (2015+) Golf and Golf Wagon TDIs based on the MQB (Modularer Querbaukasten) platform.

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Old June 19th, 2017, 14:04   #61
Ooga
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Originally Posted by Mama Roneck View Post
Update: Took my "new" 2015 GSW in for the 1,000 mile check-up on Saturday and the dealer recharged and tested the system. It seemed better yesterday in our humid 85 degree weather. Hopefully that's fixed it! I'll know for sure in mid-August.
I would push for them to replace some seals or I mean at least find the source of the leak. A/C refrigerant does not "run out" and the only way for the system to be undercharged is if it has a leak or wasn't ever properly charged. They can test for leaks. If they don't find any I would ask them to put the system under a vacuum and see if it holds. It is super common however for the leak to be coming from the compressor. The shaft seals are the major leak point but it was to my understanding that it wouldn't happen so soon. Shrader valves can give you some headache also.
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Old June 19th, 2017, 14:37   #62
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You really learned your stuff Ooga!
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Old June 19th, 2017, 18:15   #63
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I would push for them to replace some seals or I mean at least find the source of the leak. A/C refrigerant does not "run out" and the only way for the system to be undercharged is if it has a leak or wasn't ever properly charged. They can test for leaks. If they don't find any I would ask them to put the system under a vacuum and see if it holds. It is super common however for the leak to be coming from the compressor. The shaft seals are the major leak point but it was to my understanding that it wouldn't happen so soon. Shrader valves can give you some headache also.
Shrader values?

Is that the devise in the tire stem?

Thanks
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Old June 19th, 2017, 19:43   #64
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Shrader values?

Is that the devise in the tire stem?

Thanks
Similar type used in AC systems for gage connections.
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Old June 20th, 2017, 05:54   #65
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Bob S


Thanks
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Old June 21st, 2017, 11:38   #66
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Well Dad has not found his A/C to be any colder after the service by the dealer. He got around 48 degrees from the center vents with about 80 degrees outside.
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Old June 21st, 2017, 12:16   #67
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Well Dad has not found his A/C to be any colder after the service by the dealer. He got around 48 degrees from the center vents with about 80 degrees outside.
With recirculate on or off?

At idle or traveling down the highway at 2000 RPM? Engine speed and airflow over the condenser both make a big difference.

If it's at idle with the recirculate off, 48 degrees is pretty good.
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Old June 21st, 2017, 12:47   #68
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He started out driving, outside 80 degrees a/c 48 recirculate on
Driving down the highway temp outside went to 82 a/c 50 degrees recirculate on
On the way home on the hwy still a/c 50 degrees sometimes fresh air, sometimes recirculate

On a side note my wife (who doesn't like the heat) came home yesterday with her GSW and she was NOT happy with the A/C in her car either.
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Old June 21st, 2017, 13:49   #69
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I just had my A/C refreshed in my '02 because that's what it was blowing. My GSW is much colder than that. Running the A/C on low at highway speeds last Sunday, temp outside about 80, I had to turn the thermostat up significantly because the air flow was too cold.
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Old June 21st, 2017, 16:04   #70
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I just had my A/C refreshed in my '02 because that's what it was blowing. My GSW is much colder than that. Running the A/C on low at highway speeds last Sunday, temp outside about 80, I had to turn the thermostat up significantly because the air flow was too cold.
I don't understand it. Some people are getting 32 degree air and others......
Dad just called me back to say that it's 96 degrees today and he ran down the highway and could not get the air below 50 with the recirculate button on etc.

The shop said that the refrigerant was a little low and they "fixed it" but no change. I wonder if the VCDS hot climate trick from earlier in this thread ,would make a difference or if that just affects engine cooling?
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Old June 22nd, 2017, 03:56   #71
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I don't understand it. Some people are getting 32 degree air and others......
Dad just called me back to say that it's 96 degrees today and he ran down the highway and could not get the air below 50 with the recirculate button on etc.

The shop said that the refrigerant was a little low and they "fixed it" but no change. .... snip....

Seems something is wrong.

Remember my car was in continuous service from 2015 July.

Yesterday I went to the store for Braums ice cream. Temp = 95-ish

Thermostat set on "cold" speed set on "low".

Too cold after 1 mile. Have to turn the speed to off. But, only for a while.

Then adjusted the thermostat to a less "cold" setting.
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BB = $25,625, but VW is not paying for PRIME condition nor ULTRA low miles.
Net bases in my 2015 Golf = $12,495
NADA-KBB for older CPO Golf TDi 2014 = $18,250
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Old June 22nd, 2017, 13:50   #72
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I don't understand it. Some people are getting 32 degree air and others......
Dad just called me back to say that it's 96 degrees today and he ran down the highway and could not get the air below 50 with the recirculate button on etc.
The shop said that the refrigerant was a little low and they "fixed it" but no change. I wonder if the VCDS hot climate trick from earlier in this thread ,would make a difference or if that just affects engine cooling?
It's possible that the "hot climate" function is changing the discharge air temperature set point. I haven't looked into anything newer than our 2012 Passat (which has awesome air conditioning) to verify. The Passat and the Touareg will both switch between 52F discharge and 35F discharge based on what the system feels it needs to do to maintain temperature. I wish it had more steps in between, as the alternating vent temp gets annoying on long road trips.
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Old June 22nd, 2017, 20:30   #73
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Dad checked some more. On the Highway the car managed to go down to 45 degrees with outside temps in the 90s. When he returned to city driving the car would produce 50 degrees only

I really need to get a vcds but I always find an excuse not to. Right now I am busy remodeling the kitchen for the boss. Since I don't know what I'm doing it is slow going. When I do get one the first thing I'd like to check is this "hot climate" thing and if it changes the discharge air temperature. Really interesting stuff VeeDub, Thanks
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Old June 23rd, 2017, 04:14   #74
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My brand new (old) 2015 GSW has an AC issue. On my 30 minute commute home today it didn't come on until I turned it off and turned it on in my driveway. It has a major delay if it ever decides to come on. Plus it seems pretty weak when it is on. Taking it back to the Dealership next Wednesday which is the first available. GRRRRRRRRRRRRRRRR.......
Update: It was diagnosed as needing the N280 valve replaced. Part on order and will get back today or tomorrow. The Dealer could not replicate the problem on the first day so they kept it for another day. Finally got it to intermittently go warm.
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Old June 23rd, 2017, 08:24   #75
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Ted please let us know how replacing the N280 affects the A/C performance.
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