[KennethH]

Ok, I think I know what this is all about. It's not unusual that the manufacturer wants you to change certain screws or nuts, after opening them. The reason is most likely that they have applied thread locking fluid to these when assembled in the factory. If you clean the threads and apply the correct thread locking fluid, I see no reason to change any parts. Especially not any nuts. Some bolts/screws in very special cases needs to be tightened to the limit where the material starts to plasticize and that is the only time you need to replace any screws.

 

[reesy_csl]

The nuts seem precautionary, the bolt is a stretch bolt from what I gather, so similar to cylinder head bolts, they need replacing.

 

[douglas_ngo]

I have installed several coil over kits on different model BMW and re-use the old nuts without any issues. Granted you can't go wrong with using new nuts either.

 

[Hasan Shaikh]

I have installed several coil over kits on different model BMW and re-use the old nuts without any issues. Granted you can't go wrong with using new nuts either.

This is only specific to certain BMW models and is not applicable to all models.

 

[KennethH]

Does anyone know if it's possible to losen and apply thread locking fluid to one nut at a time, in the upper front mount, without messing up any angle adjustments? Don't want to redo the wheel adjustments... but i want to make sure the nuts are properly secured.
What's the proper torque to tighten these nuts?

 

[Hasan Shaikh]

Does anyone know if it's possible to losen and apply thread locking fluid to one nut at a time, in the upper front mount, without messing up any angle adjustments? Don't want to redo the wheel adjustments... but i want to make sure the nuts are properly secured.
What's the proper torque to tighten these nuts?

I am not sure about the torque specification, but emoving these nuts will not effect the wheel alignment.

 

[landski]

If someone could post the torque specs, that would be really helpful.

 

[reesy_csl]

Front top nuts are 25 lb-ft, rear top nuts are 21 lb-ft.

The bolt on the bottom of rear strut is 122 lb-ft.

 

[Vodyk]

I have installed several coil over kits on different model BMW and re-use the old nuts without any issues. Granted you can't go wrong with using new nuts either.

I agree 100%. I re-used my for many miles (25k+) and only just recently replaced them while i was putting in camber plates and figured why not!

 

[KennethH]

Solution/quick solution for the upper front suspension mounts

See this thread if you want to/can fix this on your own: http://www.m5board.com/vbulletin/e6...n/196909-preventing-upper-front-suspension-mounts-coming-loose.html#post2191776

 

[M5Froth]

Is this something I can just have the dealership do? I've have H&R's on my E60 for over 2 years now and my car is still in one piece. I'm not sure if this is an issue for me, but I'm clueless and this thread raises a little concern.

 

[V10PWR]

The dealership is able to do it. It's a very inexpensive fix.
The problem is you will never know when and where it's going to happen. I recommend reading all the posts on this thread to get a better understanding of why those bolts and nuts have to be replaced.

Good Luck.

 

[Vacanator]

What is the validity of this thread? I have had KW 3's on my vechicle and have not ran into any problems for about a year now. I'm pretty sure the shop who did the install did not go to BMW and order new bolts.

 

[MrSypher]

What is the validity of this thread? I have had KW 3's on my vechicle and have not ran into any problems for about a year now. I'm pretty sure the shop who did the install did not go to BMW and order new bolts.

Me too, I have H&R's and they have been fine for over a year but I guess it falls into that "better safe than sorry" category..

 

[khyber]

Me too, I have H&R's and they have been fine for over a year but I guess it falls into that "better safe than sorry" category..

I had my tech replace the bolts, etc! Same thought I had, better safe than sorry as well!

 

[atillathetom]

Can they just be LocTite'd?

 

[KennethH]

Can they just be LocTite'd?

Sure they can. I posted a DIY-thread. Look into that one.

 

[LAcountyM5]

Darn and I was just under there!

 

[kaa]

Ok, I think I know what this is all about. It's not unusual that the manufacturer wants you to change certain screws or nuts, after opening them. The reason is most likely that they have applied thread locking fluid to these when assembled in the factory. If you clean the threads and apply the correct thread locking fluid, I see no reason to change any parts. Especially not any nuts. Some bolts/screws in very special cases needs to be tightened to the limit where the material starts to plasticize and that is the only time you need to replace any screws.

When I went to order the nuts and bolts from dealership all their names started with, "Self Locking"...for all of them. So I think they are made in a way that the last couple of threads change shape as its tightened the first time and lock the nut in its place. That's why they need to be replaced as it will lose its locking mechanism when its reused.

 

[dens310]

If i lower my e60 with lowering spring would it affect my alignment.. just want to make sure.