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Author Topic: Air con help  (Read 1282 times)

Offline Jons1001

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Re: Air con help
« Reply #15 on: June 12, 2021, 12:56:03 pm »
You need to remove the gas to replace the pressure sensor too.

Thanks, most other forum posts I have read say otherwise though? Unless the pressure sensor has failed at the seal so is leaking gas.

Anyone clarify?

Offline FJB

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Re: Air con help
« Reply #16 on: June 12, 2021, 01:18:48 pm »
You do not have to remove the gas, the sensor is screwed onto a self sealing valve when removed. Just remove and replace, no gas will escape!

Offline Shoduchi

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Re: Air con help
« Reply #17 on: June 12, 2021, 02:04:37 pm »
You do not have to remove the gas, the sensor is screwed onto a self sealing valve when removed. Just remove and replace, no gas will escape!
Oh, I didn’t know that. When I had mine replaced I didn’t see the valve. Thanks for clarifying.  :happy2:

Offline GVK

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Re: Air con help
« Reply #18 on: June 12, 2021, 02:55:03 pm »
I thought that the pressure switch was on like a schrader valve so you can undo the switch and the gas doesn't escape - maybe wrong been 10 yrs since I did one at least. lol.
Scirocco TDI GT---- VAG scans in South Lincs/Cambs/West Norfolk.

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Offline maxamplitude10

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Re: Air con help
« Reply #19 on: June 16, 2021, 08:03:36 am »
Hi does anyone have the VW part numbers for the 2 components mentioned?
Cheers
Max

Offline GVK

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Re: Air con help
« Reply #20 on: June 16, 2021, 08:26:51 am »
I searched for a 2008 car - 1K0 959 126 A VAG Pressure Switch, air conditioning number 18 here

https://volkswagen.7zap.com/en/rdw/golf+variant+4motion/golf/2008-625/2/260-260041/#18

It appears that the N280 is part of the compressor, can't see it listed seperatley, but can get it from Autodoc aftermarket.
« Last Edit: June 16, 2021, 08:28:30 am by GVK »
Scirocco TDI GT---- VAG scans in South Lincs/Cambs/West Norfolk.

https://www.facebook.com/groups/gvkmotorsport

Offline Jons1001

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Re: Air con help
« Reply #21 on: June 16, 2021, 09:25:38 am »
I've got the pressure switch coming any day now so will let you know if this solves it for me. If not gona buy the solenoid.

Offline nicolacam

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Re: Air con help
« Reply #22 on: August 03, 2021, 03:57:23 pm »
Fixing stuff like this is a nightmare.

Offline wertyhas

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Re: Air con help
« Reply #23 on: January 10, 2022, 09:33:53 am »
I still can't fix this.

Offline maxamplitude10

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Re: Air con help
« Reply #24 on: Yesterday at 05:21:55 pm »
Code 16 not activating.

I know the high-pressure switch is common on mk5s.

Is there any fault codes in hvac?

https://euroautotraining.com/blog/late-model-vw-ac-compressor-shut-codes

16 = Compressor off (activation A/C Compressor Regulator Valve -N280- implausible)

N280 fault maybe then?

Thanks, is there a way of testing the n280? Also I did have my thermostat changed around the time this happened, now wondering if this could have been disturbed/left unplugged etc.
This is very interesting as my Air-con decided to stop cooling at the same tine I changed the thermostat too, I wonder if there is a sensor/wire or similar been disturbed??

Offline maxamplitude10

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Re: Air con help
« Reply #25 on: Yesterday at 05:25:35 pm »
I've got the pressure switch coming any day now so will let you know if this solves it for me. If not gona buy the solenoid.
Did this solve your issue?

Offline Jons1001

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Re: Air con help
« Reply #26 on: Today at 08:51:22 am »
I've got the pressure switch coming any day now so will let you know if this solves it for me. If not gona buy the solenoid.
Did this solve your issue?

Hi, very sorry I never updated . Turned out in my case I was lucky as when I got under the car to fit an ac solenoid valve (pressure sensor didn't solve it and is fitted from above but reading on you'll see why it didnt solve it) I noticed the sensor for the solenoid had been left unplugged by the mechanic who fitted the thermostat a few weeks earlier! So this was why my ac wasn't working all along!

I have got a pressure sensor, the crows foot spanner needed to fit it and an ac solenoid valve you could have for a reasonable price though now if you're interested.

Edit: just noticed you had your thermostat changed too, get under and have a look. Mine was very obvious as the sensor was just hanging there disconnected.

« Last Edit: Today at 08:55:37 am by Jons1001 »