Member, Sport: Off DSC: On (>50 posts)
Join Date: Mar 2006
Location: Cave Creek, AZ
Thanked 13 Times in 11 Posts
Mechanical Fan Mod
Fan Modification for V8 e39 cars and M70 equipped cars.
I have swapped out 3 fan blade/fan Clutch Assemblies recently with this modification:
∑ e39 with M62Tu engine - 300+ miles on this car
∑ e39 with S62 engine - 500+ miles on this car
∑ e31 with M70 engine - 150+ miles on this car
The fan comes from the E65, E66, and E67 7 Series, as well as the E53 X5 with V8 and mechanical fan:
Parts needed for the mod:
Fan Blade 17417504732
Fan Clutch 17417505109
The new fan is quieter, potentially less prone to breakage, and moves more air than stock fan. You can feel the air pulling through the grill when the engine is running.
In order to perform this change, The fan blade and clutch must be used together, the new blade will not attach to existing fan clutch. This mod is early in testing, but so far, working well. All fan clutches that came stock on cars listed are 92CEL, the new fan clutch is 92CEL as well.
About the fan: it has the same dimensions and offset of the stock V8/V12 fan, fits in stock shrouds on all cars mentioned.
I cannot post the images on this site, not sure why. I would be happy to email them to anyone who can post.
Last edited by bdiefAZ; 21st March 2019 at 04:50 PM.