I believe I have a leak in the system.
To trobleshoot I charged it with a can of 134a with u/v leak detector.

My EC light is still on. I have to hold it in for 30 seconds to turn it out, then the A/C comes on with cold air. I have to repeat the process every time the car is started.

How do I access and reset the codes?

Thank You

Don...

 

after rest remove earth terminal,refit hope stays off forever if not will need to rest with the scanner or MB STAR MACHINE.......