I had a tough time putting the axle's back in well one really, I messed one up with a hammer trying to knock it in the seal started to leak so I had to order a used one for $300.
I guess that's what I get for trying to rush. After doing the bearings, disks, brakes, exhaust wrap with titanium wrap, I was able to get the axle's in Sunday. I had to come up with a method to knock it in without damaging the end cap that connects to the Differential. I used a saw blade with 6 holes drilled into it, and put bolts secured with washers and nuts though the blade and the axel at the diff side. Had a friend hold pressure on the axle toward the splines, then I hit the saw blade to get the axel to go though the splines at the bearing side. It was difficult, I had to hit it really hard, but once I got it through about a .25 inch I used the axel nut to pull it in slowly. Finally torque it with a 1/2 wrench borrowed from auto parts store.
BMW has a hydraulic tool that cost several thousand to pull and push these axels.
This is the Hydraulic tool BMW uses to perform this service.
https://www.newtis.info/tisv2/a/en/e...shaft/FfajW42c
The last pic on this page is the end cap I damaged.
https://www.newtis.info/tisv2/a/en/e...-shaft/FsOmTVc
The exhaust sounds great! I found a local marine welder that welds using stainless, he will be sealing up the exhaust for me.
I hope no one has to do this anytime soon, but I now know what to do and what not to do...
The bearing video was great only difference is we have a wheel speed sensor (one Philips screw) to remove before pushing the bearing out.
Another video I watched shows the guy tapping in the axel, yeah right no way!!!
All tools were borrowed at no cost, you can even borrow the axel socket that I bought...
Update 5/8/18 - I drove the car today and still heard the droning/moaning sound. I just replaced the Diff fluid and it seems to have stopped now.
I wish I would have known before I started the bearing replacement.
I did ask in the forums but I got the answer sounds like rear bearing, but you had the right answer.
I should have asked around more or started with the easiest thing.
Well I have new bearings now...
Quote:
Originally Posted by kscarrol
A reasonable diagnosis! I had the diff grinding noise early on in my '11 M3, also while turning to the right. Dealer replaced the fluid under warranty and it solved the issue for me.
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