I've recently bought a 318i touring with an M50 2.5 conversion.
The car has climate control and all buttons and display works. But the heaters or dash blowers dont work. Ive read tjat the cabin filter can sometimes cause this so I swapped this the other day. The filter looked like it had never been changed as it was black. But still no difference. The hheaters do somehow work when at high speed. I.e. motorway speed.
Anyone be able to shine some light on the issue.
Any help would be much appreciated, cheers.