1 Extreme + adattatore R134a

For £20+ I would expect instructions! Yes I can go on YouTube, the issue with that is its full of clueless "wanabees". If your system is fully charged you will not be able to press the plunger, in fact because the fitting doesn't appear to have a one way valve you will have a lethal projectile from the back pressure. No gas in the system and the compressor will not kick in so running the engine for 30 mins will just add further expense and achieve nothing. Having instructions would prevent any mishaps, ideally I guess a half charged ac system would be best. All that said, and little common sense, my system was fully charged and the condenser leak minor.....I attached a G clamp to my syringe to prevent back pressure and slowly closed it (I couldn't have done it with my hands). Why 5 stars? Because the results were excellent, just give some thought to the above before going 'gung ho' potentially covering your engine bay in blue dye or worse still taking your eye out. Excellent stuff for condenser pin holes.

Great product, easy to use, some reviews saying system shouldn't has gas in it but that's nonsense how else is the product meant to work? Start engine , turn ait con on fully and clip on the adaptor to low point adaptor self seals so there's no gas leak, then inject the product, yes it's had as you are pushing against the gas pressure. Total job took 2 mins. I dont know it my leak is small enough to be fixed but the product is easy to use.

Didn’t work. Pressure 50psi. Compressor working but not really low temperature. Still hearing the noise like is leaking but can’t find anything.

Fixed my Qashqai porous condenser. Easy to use. Make sure you re gas first with the correct type of gas (label under bonnet) otherwise the leak stop will not get transported around the system. And run for half an hour at full cold after injecting. If it doesn’t work..the leak is too big.

Took car to garage for aircon fix, twice !! both times leaked out within a week so used this product and 2 cans of r134 still working a month later

It was ok , but you can buy a can of gas with stop leak combined

This is a great product and well worth the money. But Note: 1) It is ONLY for small leaks (i.e. if AC loses gas over a few months Rather than a few days) 2) You MUST connect it correctly, otherwise as others have said it will simply leak all over the place You must turn you car on, set the AC to lowest temp, then inject the solution. Injecting can be difficult because of the pressure in the AC system. So wear gloves and press the white connector down very firmly before sliding down the black locking loop. TIP: Inject a small amount and check for leaks, if no blue solution is seen, then depress plunger fully. Car must then be left to run for 30mins to allow solution to fully circulate in system.

Easy to use the kit. A bit of strength is needed for the plunger to operate against the system pressure. This product seems to have done the job, I’m keeping a close eye on temperature in the car.