Auxiliary FBH runs but doesn’t heat, 2012 RR 4.4 TDV8

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Oltrix

New Member
Posts
2
Location
Berlin, germany
Hi all, I’ve tried to find something that is relevant to my model but no luck so far.

I have the full option with Park heater and remote etc.

The FBH runs but doesn’t heat, irrespective if I switch it on with the remote or if it automatically runs when car is started in cold conditions.
When I start in cold conditions (-5 to -10c) it takes at least 10 minutes until I get warm air or seat heating. It used to take a Minute or two.

If I start the heater with the remote, the heater runs (no smoke, but hot exhaust), the fans runs, I.e. normal ops except that no heat is coming.
two questions:
1. anybody have any experience with this kind of failure?

2. Does this failure affect the seat heating (I have the perforated seats with cooling). In my mind it should be connected as the cooling of the seat must be done via the A/C then the heating should be via the heating system I.e. indirect from the FBH initially before the engine is warm. My garage guy say that the two systems are separate and the it is a coincidence that the seat heating doesn’t work. I find that unlikely.

Anybody who can shed some light on this...

Many thanks

Carl
 
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