Hi, my ECON button will not go off both sone R134a gas to refill the AC. But it dosent seem to be going in, its a4 2004. Any ideas gladly welcomed

 

The R134a should only be plugged into the low pressure side.
Run the engine with the A/C on. The low pressure side should
be colder than the high side.

 

those kits are a waste of time and money. if you had a leak there is not enough R134 in those cans for fill the system, there is no oil in those cans to effective lubed the system, and on top of that. The leak isn't fixed.

and if there isn't a leak and its a bad sensor or compressor... well then again. your wasting your time and money on those recharge kits.