Thanks for all the advice. At first I remembered that I’d been messing about with the driving mode button so hoped it was in ECO mode. Sadly not, had a look through the grill at the condenser and whilst there are some small dings in the fins (surprised when I looked) there doesn’t look like anything obvious on the actual element bars but that doesn’t rule out anything at this point I guess.
How will the dealer fault find, do they put some sort of dye through the system and see where or if it shows itself?
I hate people messing with my car 😢
Is it a major dismantle job to replace a condenser. The warranty is up at the end of the year, is it a doable DIY job with time and patience?