Hi Guys, An update: The tow was perfect, my x5 was fully loaded, 2 adults, 2 kids, holiday clothes, bikes on the roof and a gazebo. Van never moved once out of line. Again my fan was on but the advise from BMW is that this is normal for the 40d. I towed pretty much for 4 hours stopped for fuel, 4 ...

[quote="gmc15"]
Sheep1903, excellent work. I am quite relaxed about towing to the South of France in August, and I won't be doing the fan upgrade
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Yeah me too, about to embark from Forfar near Dundee to Paris.

[quote="X5Sport"] I would hope you mean an 850W fan? 850kW will be a wind turbine, and even with BMWs designs that might be taking the 'Ultimate Driving Machine' to a new extreme :) If you were hauling up and down the Alps and in hot weather, then the bigger fan would be an idea but if not then the ...

Hi Guys, Having spent many a long day researching, speaking with the likes of Witter, PF Jones, BMW, Independent Garages, here is my official outcome. When towing with the X5 (e70) 30d and 40d, The 30d has no reports of the fan being on during towing. I am aware of several 40d’s with the fan being o ...

[quote="gmc15"] I tow with the same car as yours. My van is 1500kgs and my longest tow has only been a couple of hours. My fan also cuts in and out as I slow for junctions. The trouble is that these cars don't have a temp gauge so it is difficult to know how hot the car is running! I will be towing ...

We'll gents after days of searching, I can find no overheating issues from towing. Many x5 towing without issue using aftermarket.

I'm just going to go for it, sure after 4 hours of towing you would have seen an issue by then. Think BMW is covering for all areas of the world and very cautious.

Ah.... That's an interesting theory. Sounds very possible. I was debating getting the upgrade, I called another BMW today and they quoted £1279. I find it hard to see many conversations but not read anyone with an actual overheating problem highlighted. There must be some x5's out there with ...

[quote="gmc15"] I tow with the same car as yours. My van is 1500kgs and my longest tow has only been a couple of hours. My fan also cuts in and out as I slow for junctions. The trouble is that these cars don't have a temp gauge so it is difficult to know how hot the car is running! I will be towing ...

I called another branch of BMW, They told me that to tow anything they have to advise that the fan is upgraded from 600w to 850w, price to pay is £800. One thing I have noticed that when I tow just now my fan is always on when my car is moving on the road as soon as I stop, slow down near a junction ...

Thanks guys, much appreciated!! Seems like there are many of us towing without the upgrade, it's a pretty mad situation to be in after spending all this money on a car. I have always towed for a few hours and thought sod it, bit different this time going to France. What is the max towing time that ...

Hi Guys, Can somebody please advise on the X5 E70 towing and cooling upgrade. I’ve searched for months and cannot really find any definitive answers. I’ve a 2011, 40d, 8 speed auto towing a Swift twin axle at approx. 1600kgs I had a witter towbar installed when I picked the car up from John Clark. I ...