ERRECOM Extreme - 30 mL, Air Conditioning and Refrigeration Leak Stop for HVAC/R and Vehicle A/C Systems, adapters not included

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.

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.

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

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.

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

Had my aircon regassed and oiled 5 days ago and 3 days in no cold air, injected this into system and cold ice air 5 mins later, excellent product, saved the cost of an expensive repair

Fixes the leak no issues, just top up with AC