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-   -   Wheel Torque 2011 X3 f25 (http://www.bimmerfest.com/forums/showthread.php?t=659451)

318i aus 11-21-2012 02:04 AM

Wheel Torque 2011 X3 f25
 
does any one know the wheel nut torque for the X3 F25 Diesel as I want to remove the wheels and wash the Brake dust out it is a 2011 Model Thanking you .

lbjgh 11-21-2012 01:41 PM

I used 90 lb·ft (89 was the official number) on my 35i.

I expect the torque would be the same on all models.

gfeiner 11-21-2012 07:01 PM

Not 90 for the F25. Torque is higher for the M14 bolts used by F25.
Its 140Nm which is approx 103lbFt

lbjgh 11-21-2012 07:38 PM

The following response was from a former member on the other forum.

I trust his response.

Quote:

The "nominal" value is 89 lb./ft, but any value within the range of 85 to 101 is acceptable. As I recall, those values came from a translation/conversion from the German Owner's Manual. Any value you set with a torque wrench will likely have an error associated with it. The best "analog" torque wrenches (bending beam) are accurate to about +/- 5% and the very best ($200 and up) digital wrenches (Gearwrench or Snap On) are accurate to about +/- 3% or so when recently calibrated.

That "nominal" torque reading is for clean, dry, but NOT greased or oiled lug bolts only.

Also, because of the bolt thread pitch as compared to the E83, (M14X1.25 compared to M14X1.5) the actual bolt tension (and the force holding the wheels to the hubs is 20% higher on the F25 chassis. A F25 bolt at 89 lb./ft. is actually putting more holding pressure on the wheel than a E83 bolt at 101 lb./ft.

As always, it's best to approach the final lug bolt torque reading in a couple of stages. IE: First torque all bolts to 10 or 20 lb./ft, then all to 50 lb./ft. and finally all to 89 lb./ft. in a standard "star" pattern.

Of course, with alloy wheels, some settling-in due to "cold flow" always occurs. Most wheel manufacturers recommend re-torquing the bolts after 500 miles, but hardly anyone but serious racers ever do it.
Quote:

Originally Posted by gfeiner (Post 7208066)
Not 90 for the F25. Torque is higher for the M14 bolts used by F25.
Its 140Nm which is approx 103lbFt


318i aus 11-22-2012 01:16 AM

Thank you for advise I will be cleaning the wheels in the next couple of wheeks . would it make a different they are run flat tyres. Thanks John 318i aus

gfeiner 11-22-2012 12:07 PM

1 Attachment(s)
The 140Nm is what I got from the BMW TIS. See the attached doc.


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