want to see something FCUKT UP?

[TJ 450]

Yes, 100NM is way too tight for wheel bolts.

About the fractured oil filter bowl... I have had visions of that occuring every oil change on my 450.

Now I know that it's entirely possible and a torque wrench is required, which I use anyway.

Tim

[oscar]

Yes, 100NM is way too tight for wheel bolts.

I believe ya's, it's just there's something up with the manual.  Check it out Link It's the only reference I could find the other day.

[TJ 450]

Actually, I was thinking in lb ft. 73.75 lb ft = 100NM, so that's correct.

It is very likely that they have been overtightened in the past, particularly where air tools are used.

Tim

[s class]

Thanks, TJ, now that that info is out, I can admit I always use 100nm for wheel bolts.  Never had any problems. 

[koan]

Never used a torque wrench on wheel bolts, I don't do them up to "red in the face" torque and the wheels do stay on.

I do use a bit of oil on the threads which the manual says not to do, and I wouldn't if I was going to use a torque wrench. The resulting tension in a bolt from torquing lubricated threads is much higher than that reached by torquing dry threads.

koan

[oscar]

I do use a bit of oil on the threads which the manual says not to do, and I wouldn't if I was going to use a torque wrench. The resulting tension in a bolt from torquing lubricated threads is much higher than that reached by torquing dry threads.

Ohhhh! Didn't read that bit.  I always use lube so they undo easier.   Considering there'll be oil in the hub threads, putting new ones in are going to be lubed as well.  It's either hit it with carb cleaner and torquewrench tighten or I might just go back to your way of doing it koan - smidgin of oil and hand tighten.

[TJ 450]

On Volvos, 700 series cars in particular, uneven torquing of wheel bolts is known to be a cause of warped brake rotors.
This shouldn't be a problem on MBs, due to the fact that the front brake rotors use a separate set of bolts, so using a torque wrench is more of a habit for me. The rears shouldn't be a problem either, but nothing annoys me more than a pulsating brake pedal, so I'd rather be on the safe side.

Tim

[Yesmar]

well my CEL went on in my daily so i decided against going to pick the part up, i am still waiting for the part from mercedes benz.  although i did fix my daily yesterday(o2 sensor) and depending on how much longer i may drive down today after i get out of work.  dont worry i will get a pic of the part.  i cant wait to get my benz on the road... its amazing how when you can drive it you try not to , to keep it in good shape. when you cant drive it, thats ALL you want to do!