Good afternoon all.

After not using my heater/blower for a couple of months. Turned on last week and aircon was blowing 'tepid' air.

Have been to dealer this morning.

They did a regas, confirming there were no leaks.

Unfortunately has not cured the problem.

They want to book in for a 'diagnostic' but cannot tell me what they will do or what they suspect can be wrong !!

Has anybody had similar issues they may be able to give me some pointers towards please ??

Sorry, no idea. How old /many miles has your Enyaq done? Is it the Cooling / AC & blower you have not used much recently rather than the Heater? There is a good reason for using AC all the time other than when the weather / ambient temp is too cold for it to operate.