Goodmorning everyone!! I have a problem, I feel the fan inside the cockpit (maybe the one) stay on all the time, even with the doors closed, it usually stays on for two minutes, then turns off, but now it's always on, ideas?
Thanks in advance
gianluca

I would guess it is the FSR that has failed it is a fairly common problem. Mine failed earlier this year it leaves the fan running till battery is flat. I got a BMW one of the internet and replaced it myself with help of YouTube and this forum - it is located behind lower dash panel between steering column and centre console on a right hand drive - quite fiddly to do . 2012 tdv8 Westminster arrived Jan 19 gone Dec 23

200 TDi discovery bobtail gone
RR classic v8 bobtail gone
300 tdi Discovery 3 dr gone

I have located the noise, it seems to come from behind the battery, I tried to replace the fsr relay, but without success

It could be the FSR, not the FSR relay.

The FSR (final stage resistor) controls the fan speed depending on the air flowing over it, so if it has failed then it could be telling the fan to run constantly.

It sits in the ventilation channel below the front fan where the floor carpet meets the floor tunnel, between the front seats and looks like a hedgehog!

Do a search for replacing it in the Wiki.

Done it for you: https://www.fullfatrr.com/forum/topic781.h...eplacement

Mike

The FSR I fitted is a Merle 64 11 6 923 204

https://www.ebay.co.uk/itm/273722108774?ul...noapp=true

About £36 2012 tdv8 Westminster arrived Jan 19 gone Dec 23

200 TDi discovery bobtail gone
RR classic v8 bobtail gone
300 tdi Discovery 3 dr gone

If the fan noise comes from behind the battery it's possible the fan in the fuel burning heater is coming on due to a fault.
To check try removing fuse 59 20A on the glovebox fuseboard and see if the noise stops.

Could it be the ecu cooling fan? 2012 tdv8 Westminster arrived Jan 19 gone Dec 23

200 TDi discovery bobtail gone
RR classic v8 bobtail gone
300 tdi Discovery 3 dr gone

Update, I spent the Sunday disassembling the car, doing all the tests, and I realized that the FBH is always on, in fact, besides having downloaded the battery, it drank me a lot of fuel without me turning .....
I have disconnected the wires and the noise has ceased, I doubt that the control unit has failed, does anyone know where it is, so as to check it?
thank you
gianluca

The FBH is controlled by a printed circuit board located within the casing of the unit itself. These pcb's regularly fail after a number of years.

I understand .... thanks for the information