P38A Air Con - Any gas in system ?

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awkwardbob

awkwardbob

Well-Known Member
Posts
559
Location
Glasgow
Hi,

As I continue my voyage of discovery, the next thing on my list is the air-con which doesn’t work.
I’ve the booklet symbol on the hevac but no related fault codes I can see on nanocom. (Mind you, where should I be looking ?)

I had it tested (supposedly) a few months back and the garage said it was leaking from the condenser but were a wee bit vague and didn’t charge me for it.

I have a new condenser and drier I can fit but before I go about it, I suddenly wondered whether there’s an easy way to tell if there’s any gas in the system ?
Also any other words of wisdom on doing the swap ? -it looks fairly straightforward on Rave -and I’m doing the oil and transmission coolers at the same time due to leaks,

Thanks in advance !

Bob
 
Just push the small pipes bit with a long screwdriver I’ve there’s gas it will fly out but be careful and where gloves or the other way would be to put pressure gauge on it you have to have it pumped out to work on it anyway I think
 
Ha, ha yes.

I want / hope the system is empty but what I was wondering was whether there is any obvious indication that it is empty without risking environmental catastrophe or frost burns ?

do I need to go and have a pressure/vacuum test ?

Thsnks again

Bob
 
awkwardbob said:
Ha, ha yes.

I want / hope the system is empty but what I was wondering was whether there is any obvious indication that it is empty without risking environmental catastrophe or frost burns ?

do I need to go and have a pressure/vacuum test ?

Thsnks again

Bob
Click to expand...
Kwic**** used to do a no fixy no payie, don't know if they still do.;);)
 
awkwardbob said:
Hi,

As I continue my voyage of discovery, the next thing on my list is the air-con which doesn’t work.
I’ve the booklet symbol on the hevac but no related fault codes I can see on nanocom. (Mind you, where should I be looking ?)

I had it tested (supposedly) a few months back and the garage said it was leaking from the condenser but were a wee bit vague and didn’t charge me for it.

I have a new condenser and drier I can fit but before I go about it, I suddenly wondered whether there’s an easy way to tell if there’s any gas in the system ?
Also any other words of wisdom on doing the swap ? -it looks fairly straightforward on Rave -and I’m doing the oil and transmission coolers at the same time due to leaks,

Thanks in advance !

Bob
Click to expand...

Go to the place you're getting it regassed at. If leaking they should have drained it but just in case, tell them what you're planning and they will drain it. Swapping in a new Hella one won't take long and then you can nip back for them to fill it. From memory there are 2 different o-ring sizes you need. Fairly cheap from Land Rover although 10 times what they should cost.
 
If you are being a good bloke go to the AC place and get them to check it, and take out any remaining gas.

You could however check the switch that would tell you if it was low pressure, depending on results then push the little tit and see if there’s any left. Then go for option above.

If there is nothing from the tit then go for it and change what you need. Then go to AC guy and get it checked before filling.

J
 
Thanks for all the help, I just wonder though, is there not any way of telling if there’s gas in the system ? Either from Nano-com Ori through some other means ?
 
Correct way is definitely to get it extracted by an A/C machine. If the condenser is bad, chances are it's already empty. Or get a cheap A/C gauge set online, and connect to the valves. . . . . . . or just push the valve a bit & see if it has pressure. Stand beside the car so the gas jet misses you !!

When I did my condenser the system was clearly empty due to the leak !! Replaced all the o-rings at same tine. After fitting I pressurised using my airline to check for leaks, and then got my A/C guy to do a 20min vacuum before filling to clear the system.
 
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