Phil1968
Active Member
- Joined
- Mar 22, 2015
- Messages
- 582
- Car
- W219 CLS 500, W447 Vito 114 CDI
I think he's confusing automotive AC with residential AC, in residential AC it is a sealed system, whereas in automotive it's not 100%. Refrigerant gas does not 'wear out'. Unlike automatic transmission fluid.So you believe Mercedes when they say some gearboxes are sealed and need no maintenance......ever?