hi guys - 5.0 supercharged new to me and I’m getting no heat in the cabin… any common faults? I have read the fbh diverted valve can get stuck? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

not sure whether a 5.0 petrol has a fuel burning heater ( and thus no diverter valve ? )

if you turn off the AC, do you get any heat at all, and what is the engine temp guage showing ? V8 or else ...

It defo has one as i have the remote for it and can see the gear under the bonnet Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Ok - so, does the engine get up to full temp ? V8 or else ...

It does indeed Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

This sounds like a blend motor/flap getting lazy.
If you've got access to a GAP tool or similar, look at live values for the heater flap positions. L405 2014 FFRR Autobiography
Corris Grey
Previously 2011 D4 SDV6 HSE Santorini