A month ago while driving up a 2000 metre pass in horizontal snow with almost zero visibility through drifts up to a foot deep in first gear most of the time I noticed that the high speed fans (its a 2 fan car) were cutting in all the time and the temperature was pretty high too. I assumed that the front grilles were blocked with snow and not allowing enough cooling air through.
So at that time I thought that this was a serious weakness in these conditions and that BXs do not like snow.
Then a couple of weeks later I got stuck in traffic and the high speed fans cut in again - there was no snow involved this time so I obviously had a cooling problem somewhere.
So on a warm day (+2C) a bit later I ran a few tests..............
1. Shorting the connections for the high speed fans only one fan was working.
2. When the aircon compressor was on no fans spun at all.
3. I got my meter out and found 0v to the fans when they should have been running at slow speed.
So I dug around and found a circuit diagram for my car in the Revue Technique. The 12v comes through a relay under the glove box and Fuse 4. I found that the relay was operating but the 30a F4 had blown for some reason.
The BX is BRILLIANT in snow by the way. With the suspension raised it can negotiate quite deep snow and ruts that other cars just get stuck on. My snow tyres, Michelins are excellent too. I have only had to get the shovel from the boot once to dig the car out of some deep stuff on a bend.
I attach a couple of pics of the BX with raised to intermediate height suspension in the drive to my place showing the 4-5 foot depth on the field on the right of the car.




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