air con not working - Help!

[heavyd]

Yet again my car strikes again, this tim ethe aircon isnt working.
I did a VCDS scan, and it said 00229 - low pressure
I took it to kwik fit, who said they drew 400grams out, and put 530grams in, and it had no leaks.
So it only leaves the pressure switch or the compressor.
Am I correct in assuming the switch is the one that you can see behind the radiator pointing upwards? and I can change this without letting all the gas out?
or is it a waste of time, and I just need to pay for the compressor? Does anyone happen to know the part number for the switch by any chance?
Thanks in advance for any help

[scottm72]

i hope kwik fit didnt charge you for the air con recharge then,, if i remember right the policy is that if they do not decrease the cold temp of your air con by over 10% then you dont pay,,,,, if in doubt phone their head office,,,,, just a thought but not a lot of people in kwik fit know how to do the air con recharge properly which was down to the bad training ( i was on the training course when it started ) lots of people do know how to do it there but a lot dont as well.
 

[heavyd]

No mate, didnt have to pay a penny.

[rich83]

Yes you can... the part where the pressure switch screws into has a valve in it. 

[scottm72]

good, do you have a localgarage that can re do it or maybe they can check if the compressor is faulty before this ?
looks like you may have to fork out for a replacement if you want the air con back

[heavyd]

Yes you can... the part where the pressure switch screws into has a valve in it. 

Is that the sensor behind the headlight area?

I'd rather try the sensor before the compressor to be honest

[rich83]

Yep... behind the rad. on the left hand side.

[rich83]

Centre of pic with elec. connector on top

[heavyd]

Thanks for info, looks like a nice easy part to get to 

[rich83]

You need a crow foot spanner. 

[Statller-Stevo]

Before you buy a switch Dom check the power to the pump very easy to pop the plug and do this first, think I've swapped one switch ever on your platform but fitted loads of pumps, costs nothing to check, let me know if it is the pump, got a few good used in stock (it pulses by the way)

[heavyd]

Thanks for the tip steve, I'll try and find the terminals first then

[Gazza747]

Before you buy a switch Dom check the power to the pump very easy to pop the plug and do this first, think I've swapped one switch ever on your platform but fitted loads of pumps, costs nothing to check, let me know if it is the pump, got a few good used in stock (it pulses by the way)

Just for info my air con fault turned out to be the switch, was around £50 from VW but i guess the pump failing is more common

[rich83]

Wouldnt a failed pump throw a different fault code?

[Statller-Stevo]

90% of the time no codes for a fuxxed pump bet we fitted 15 to Vag group cars this Summer