BMW E46 M3 - DIY - Diff, Differential Oil Leak Fix

  Рет қаралды 33,491

Lars Fuglsang

Lars Fuglsang

6 жыл бұрын

So I search the net and KZfaq for a video/information on how to fix the BMW E46 M3 Diff leaking oil, and could not find what I needed, I wanted to know how difficult it was to remove the shaft and flange inside the diff, and so on, but no videos where found, so here I made my own video to help others looking for this information on how to fix a leaking diff.
I don’t do DIY guides for dummy's, so I don’t list what tools and sizes and all that, you should already be able to work on your car if you do this job and understand the basics of wrenching, and have plenty of tools in your toolbox :) If you don’t let a professional or friend do it for you!
Parts you need are:
Front seal: 33121213949
Left and right seal including locking ring (you need 2 stk total): 33107510289
O-ring (you need 2 stk total): 33111214144
Really good website where I order all my BMW parts is leebmann24, its only in German language, but has pictures easy select parts, just click “Ersatzteilsuche” and select your BMW model, and from there on its clicking pictures, Easy :)
Here a good manual for Torque Specs: d.pr/f/17gLN
Hope you liked the video, and remember to Like or Hate, and Subscribe!
Thanks for watching :)

Пікірлер: 30
@charlesvaughan6063
@charlesvaughan6063 6 жыл бұрын
THANK YOU so much for showing how the weep hole should be oriented. I made the mistake of pulling both side off without marking them, and figured they would be at the bottom. Of course, all of the fluid leaked out. This information doesn't exist ANYWHERE else, and several internet "experts" gave conflicting information.
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
Jep, i to did not find in information i needed, So that's why i made this here video, im happy it helped you :)
@Dpryvd
@Dpryvd 6 жыл бұрын
Finally, after 20 videos and none mention how to install the snap ring, thanks for the info!
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
You are welcome :)
@DonBMW
@DonBMW 5 жыл бұрын
Top notch video. I was in the middle of this job in my E36 M3 and did not know how deep to drive that seal on the output shaft. Thanks so much for the tip at 1:37 to drive the seal only enough to cover half of that small hole. I also used some RTV on those metal spacers and let it dry overnight. Job complete and no leaks!
@delschier1419
@delschier1419 4 жыл бұрын
Thank you Lars! I have both seals leaking on my 88 M3 E30. I think I can replace them with my car up on my lift without removing the entire differential. I hope. Now I have to find somebody with old M3 parts.
@michaelburris582
@michaelburris582 6 жыл бұрын
Lars, thank you so much. Great information!!! I'd a been fuc-ed with out it👍👍👍
@emilepapillon2275
@emilepapillon2275 Жыл бұрын
What is the torque spec of the bolts?
@danielroh83
@danielroh83 5 жыл бұрын
Hi thanks for your help and diy. How did you remove drive shaft mount plate ? Its all ready removed at the beginning of your vid thanks
@LarsFuglsang
@LarsFuglsang 5 жыл бұрын
Daniel Roh Hi, sorry I don't understand what you mean?
@danielroh83
@danielroh83 5 жыл бұрын
Hi i meant the two side plates were the shafts bolt on the LSD but i found it, only need to pull it out and it comes without troubles
@TheJimmy3960
@TheJimmy3960 6 жыл бұрын
hello did just replace all the bearings on my diff but now when i deaccelerate it makes a really horrible noice. i Think it has with the shim to do because i placed them as they was Before but now i maybe need a new size? otherwise on acceleration it sounds normal
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
Street car society sad to hear that, I really don't know, hard to say. But i don't think so, sounds to me like some other issue.. Those shims control where the thoths connect on ring and pinion only.. But shou not make sounds eighter way... Did you not check with markers og gears where they connect before you finished and closed everyting?
@davidramez6219
@davidramez6219 6 жыл бұрын
Months later, this is still a very helpful video. How about the front shaft seal? Is there a weep hole too?
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
No :)
@Andrew-vt7mi
@Andrew-vt7mi Ай бұрын
Can this be performed with the diff still in the car? Especially for the passenger side (where my leak is), it looks like there's enough room, but I don't want to get halfway through and get stuck!
@LarsFuglsang
@LarsFuglsang Ай бұрын
Yes i think so, you should be able to see when looking at the diff, if you can do it or not :o)
@nordje12
@nordje12 Жыл бұрын
ah....I wish I had seen this before i reassembled the diff after replacing my LSD clutches. This explains I think why the right side is leaking - I drove the seal to the bottom of the housing - past the oil hole. I pulled the flange back off and it's clear the seal is not riding correctly on the output shaft. Question - my left side shaft is not leaking but the seal is installed past the oil weep hole. Do you have any insight into issues covering the weep hole might cause? I think I'll plan to re-do the left side but it's more inconvenient as the exhaust needs to be pulled.
@LarsFuglsang
@LarsFuglsang Жыл бұрын
Hi, I'm happy you find my video helpful. That's why I made it. It's very long time I did it so I'm not 100% sure anymore. But as far as I remember, if you cover up the hole the rings or seal or what you call it won't get any lubrication and they will fail so you shouldn't do that..
@nordje12
@nordje12 Жыл бұрын
@@LarsFuglsang thanks Lars. I concur that it's likely to fail prematurely...but I can't immediately replace it. Fingers crossed it will last 500 ish miles....
@ACommenterOnYouTube
@ACommenterOnYouTube 3 ай бұрын
​@LarsFuglsosang so you reply to this guy but left me hanging 🤷🏽‍♂️
@alexp.3102
@alexp.3102 4 жыл бұрын
Klasse Video! Mit welchem Drehmoment werden die Schrauben des Flansch ans Gehäuse geschraubt? Habe leider nichts gefunden.
@LarsFuglsang
@LarsFuglsang 4 жыл бұрын
Always search for things in English, there is much more online on English than German language... Cover bolts i think 55 NM, but search the TIS site your self.. :) www.newtis.info/tisv2/a/en/e46-m3-cou/repair-manuals/33-rear-axle-rear-wheel-drive-guide/33-00-rear-axle-rear-wheel-drive-guide/5a5KHr2
@LarsFuglsang
@LarsFuglsang 4 жыл бұрын
Also here is a manual you can download it seems good d.pr/f/17gLN
@whothe_f7057
@whothe_f7057 6 жыл бұрын
You should check out srd tuning in the uk they built a 850bhp e46 m3 with a 2jz
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
Cool thanks i will :)
@FishingNativeWaters
@FishingNativeWaters 6 жыл бұрын
What's the torque spec on those 8 bolts for the 2 side covers?
@LarsFuglsang
@LarsFuglsang 6 жыл бұрын
From Bentley Service Manual: Drive Axle to differential flange M10 torx bolt --- 83Nm M10 with locking teeth (replace bolts) --- 96Nm M10 with ribbed teeth (black & silver) --- 100Nm ZNS (replace bolts) --- 80Nm
@darrend2035
@darrend2035 2 жыл бұрын
2:32 , 😂🤣
HOW TO Fix your leaky differential for under $5
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