Snakecharmer

Thanks Dave, I have just sorted it.  I have found a 15amp fuse floating in a separate bank near the battery (image attached) which had blown and now I have power restored to the fridge supply.  Now I just need to sort the fridge out which has also been affected. 

Many thanks again.

Chris

Oh that's brilliant information thank you.  It could be the trailer braking module?  I have bimmercode and bimmerlink so will look for the option.  

Do you have any advice on locating the module please?

Regards

Chris

I recently grounded my electric tow cable and our Thetford Fridge went off for a couple of days and then strangely came back on.  It works on 230volt and gas but not on 12volt from the car?  I replaced the cable on the caravan and discovered there was no power to the grey cable suggesting a blown fuse.  I have checked the fuses BMW use for the towbar sign on their card but they are all good.  Anyone know which fuse may have been used before I have to check every fuse on the panels.?

The other day while towing our caravan I accidentally allowed the the electric cable to trail on the ground and it was partly severed.

I have replaced the cable but the Grey wire which supplies power from the car to the fridge (ignition on) is no longer live.  I have checked all of the fuses shown to be for towing on the fuse box diagram and every single fuse on the fuse board in the trunk. All fine. I would be grateful for any advice to help locate the problem.  Could there be a relay that may have failed? In-Line fuse?