HELP ! Swapping winters - 5th lug nut is different ?

[jlsbimmer]

Hi, new bmw owner here - 2006 330i with sport .

I was about to DYI change over to some winters wheels I picked up ... and noticed that 1 of the 5 lug nuts is different from the other 4 ... it seems circular with mutiple internal ratcheting ... ALL 4 wheels have this odd lug nut ...

Is this odd lug some sort of locking nut ?

Is there a standard supplied tool/part this is used with the odd nut ??

Does this mean I won't be able to take the wheel off with what I have ??

FYI - I just bought a jack and 1/2 inch drive torque wrench with a 17mm lug attachment.

Thanks all,

js.

[I3eXa]

you are looking at a 'keyed' lug nut. Just something stupid to keep the simple minded theives from stealing your wheels/tires. You should have a key for them that will slide over the lugnut to remove them. Look in your service jack compartment in your car and there hopefully should be the key....

[madurodave]

Just be careful with the keyed lugnuts. I had one set on my Z3 that I had difficulty with. The hardened key broke in a spot - looks like a harening defect. I got it off but I don't think I will use them again. It may have been damaged at a tire place or just been a faulty part.

I used to keep my key with the lug wrench.