Used on BMW E60 (2003-2009 5 series) and some volvo models. Extra long high side coupler can easily reach the service port. High side extra-long 14 millimeter x 16 millimeter.
Ideal tool for accessing recessed high pressure cock. Note: it is best to completely drain the water from the system and pour freon exactly by the recommended mass as close as possible. The BMW easily overloaded and didn't perform like the right amount of freon. The volume can be turned off, but try to be as accurate as possible. This
Pros
Extended sleeve with high side allows easy access to service port