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[Entwood]

I believe that it is now "illegal" to just replenish an air-con system .. it has to have a pressure check for leaks first .. environmental pollution and all that .....

I had mine done for £40 last spring at a tyre place in Swindon ... Imperial Tyres ... very impressed.

They took temperature readings before and after, pressure tested then drained and refilled.  

Been working a dream ever since

[Andy B]

I believe that it is now "illegal" to just replenish an air-con system .. it has to have a pressure check for leaks first .. environmental pollution and all that .....

 .......

We'd better take all those cans of R134a from the shelves of Halfords if that was the case. IMHO it's illegal to knowingly fill a leaky system with refrigerant.

[Entwood]

I believe that it is now "illegal" to just replenish an air-con system .. it has to have a pressure check for leaks first .. environmental pollution and all that .....

 .......

We'd better take all those cans of R134a from the shelves of Halfords if that was the case. IMHO it's illegal to knowingly fill a leaky system with refrigerant.

 Are they legal anyway ??  

http://www.allpartsautomotive.co.uk/allparts/DisplayArticle.asp?ID=16197

(OK .. I know they probably are ... but with halfrauds .. who knows ??   )

[Kevin Wood]

They're a waste of time anyway, IME. Only experience i've had of one the canister didn't appear to have enough pressure to transfer gas into the system. Press the trigger and nothing happened. In any case, it's essential that the system contains the correct quantity of refrigerant and that can only be achieved by vacuuming it out and adding a measured quantity.

Kevin

[Andy B]

They're a waste of time anyway, IME. Only experience i've had of one the canister didn't appear to have enough pressure to transfer gas into the system. Press the trigger and nothing happened. In any case, it's essential that the system contains the correct quantity of refrigerant and that can only be achieved by vacuuming it out and adding a measured quantity.

Kevin

Whilst I agree completely with you that the A/C sysytem is supposed to have its meaured kilo-ish(?) of refrigerant, I realised earlier this year that mine wasn't getting anything like as cold as it should be. I had a couple of cans of R134a that I'd bought in Wall Mart a couple of years back, so, as I already had them I'd nothing to lose so put a can into the sytem. So far, so good! The A/C runs nice & cold when required.

[x25xe]

I believe that it is now "illegal" to just replenish an air-con system .. it has to have a pressure check for leaks first .. environmental pollution and all that .....

 .......

We'd better take all those cans of R134a from the shelves of Halfords if that was the case. IMHO it's illegal to knowingly fill a leaky system with refrigerant.

It is illegal to knowingly refill a leaking system.

As I have said in the past, and many have said in this thread, a proper vac and regas is the only real way forward.

Incidentally, the A/C should be serviced every couple of years by doing this and replacing the receiver / dryer.