Aircon display has been flashing on/off and after watching a few videos I figured why. A guy with a Ford truck said the Aircon was switching on and off - he could see the pulley being disengaged and said it was low on refrigerant. Since the Jag pulley is always engaged logic says the next warning would be a flashing display.

So I bought the STP Aircon kit from Halfords, this is for R134a. The inlet port is under the vehicle, besides the front left wheel! I connected the gauge and there wasn't any measurable pressure but since it had still been able to cool the cabin, and there were no obvious leaks (UV light) - I started the fill process.

It took about 10 minutes, STP recommend to agitate the canister and before long it was completely empty! Now the pressure gauge read full and after a test ride everything appears OK.

There are cheaper kits available but STP make pretty good stuff and the gauge applicator is reusable + Halfords give a £10 refund on the canister.

Hi Justin,

Glad you fixed problem.

I did not know you could buy a kit and do this yourself.

Always thought that it had to be done by a garage.

Good to know.

Regards,

Julie.

 

On 5/6/2022 at 10:48 PM, JustBadly said:

Aircon display has been flashing on/off and after watching a few videos I figured why. A guy with a Ford truck said the Aircon was switching on and off - he could see the pulley being disengaged and said it was low on refrigerant. Since the Jag pulley is always engaged logic says the next warning would be a flashing display.

So I bought the STP Aircon kit from Halfords, this is for R134a. The inlet port is under the vehicle, besides the front left wheel! I connected the gauge and there wasn't any measurable pressure but since it had still been able to cool the cabin, and there were no obvious leaks (UV light) - I started the fill process.

It took about 10 minutes, STP recommend to agitate the canister and before long it was completely empty! Now the pressure gauge read full and after a test ride everything appears OK.

There are cheaper kits available but STP make pretty good stuff and the gauge applicator is reusable + Halfords give a £10 refund on the canister.

 

On 5/6/2022 at 10:48 PM, JustBadly said:

Aircon display has been flashing on/off and after watching a few videos I figured why. A guy with a Ford truck said the Aircon was switching on and off - he could see the pulley being disengaged and said it was low on refrigerant. Since the Jag pulley is always engaged logic says the next warning would be a flashing display.

So I bought the STP Aircon kit from Halfords, this is for R134a. The inlet port is under the vehicle, besides the front left wheel! I connected the gauge and there wasn't any measurable pressure but since it had still been able to cool the cabin, and there were no obvious leaks (UV light) - I started the fill process.

It took about 10 minutes, STP recommend to agitate the canister and before long it was completely empty! Now the pressure gauge read full and after a test ride everything appears OK.

There are cheaper kits available but STP make pretty good stuff and the gauge applicator is reusable + Halfords give a £10 refund on the canister.

Justin

Good item to submit. I will file this in the brain just in case it should be needed. Thank You.

Best Wishes and Regards, John

On 5/7/2022 at 5:48 PM, Aubrey said:

Hi Justin,

Glad you fixed problem.

I did not know you could buy a kit and do this yourself.

Always thought that it had to be done by a garage.

Good to know.

Regards,

Julie.

When I first saw these I was amazed. I thought people might blow themselves up but the usage is fairly straightforward.

Remove the port cap with a 17mm socket and push-fit the valve connector. From what I can work out from the manual, the static pressure should be 77psi but anyways once this is connected start the engine and turn the Aircon onto max cold then check the pressure. If it was anything like mine there won't be much so screw in the canister and start filling. The contents is actually a liquid so tip over the canister and give the trigger a squeeze, then upright and another squeeze to vent the hose. Repeat until the dial is in the green.

Once done turn off the Aircon and engine then remove the valve connector. Replace the port cap and you are done.