Hello

Really helpful thread, thanks. I am experiencing this same problem since my last full service. Looks like whomever did the pollen filter didn't put everything back properly and check the seal. Pollen filter is soaked through, air con now stopped working as well as Fans (except 4) and something extra: The Horn!

A bit odd, but does anyone know if the horn connects through any of this wiring that may have been damaged by water. Or is it a totally separate issue?

Service was only 2.5 months ago. But I suppose I can't really prove to the garage they made a mistake. They could just say I've tampered with it since then and it was me that caused the problem...