How To Replace A Leaking Differential Axle Output Shaft Seal On An E46 325xi

This video shows how to properly repair a passenger rear differential leak by replacing an output shaft seal on a 2004 e46 325xi. Below you will find lists containing all the Parts, Tools, Torque Specs used in this video as well as time-stamps for key job moments and links to some of our supplies. We HIGHLY RECOMMEND watching the entire video rather than skimming through as there is vital information discussed throughout the process. This video contains the information to do this on most BMWs but is an exact repair method for most if not all e46s.
This video is for entertainment purposes only. We are not responsible for any damage to your vehicle.
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PARTS:
Differential Output Flange Seal - Part # 33107505604
Axle Nut - Part # 33411133785
Axle Mounting Screws (6) - Part # 26117571956
Drain/Fill Plugs (2) - Part # 33117525064
Gear Oil (2) - Redline 75/90 - Part # 57904
SPECS:
Axle to output shaft flange - 80nm
Differential drain/fill plug - 60nm
Axle nut - 300nm
TOOLS:
Basic Requirements
Flashlights
Rags
Penetrating Oil
Brake Parts Cleaner
Scotch Brite
Motor Oil
Paint Marker
Basic Tools
13mm Wrench
1/4”, 3/8”, 1/2” Ratchets
1/4”, 3/8”, 1/2” Sockets (13mm Priority)
3/8 E-Torx sockets (E12 priority)
3/8” Extension
Punch/Chisel Set
Heavy Hammer
Rubber Mallet
Prybars
Job Specific Tools
12 Point 36mm Socket
H14 14mm Allen Socket
3/8”, 1/2” Torque Wrenches
Fluid Transfer Pump
Optional
Dial Caliper
Impact Gun
Air Hammer + Tips
BMW Axle Flange Puller

[@rockwithShawn]

Very helpful, quality video! I used a seal puller instead of a typical pry bar, doing the driver side on jack stands with the exhaust hanging limiting room. Thanks!

[@bavhaustv9795]

Thanks for the positive feedback! A seal puller is definitely the better tool for the job haha. And yeah driver side is a bit more of a pain but you can just undo those 13mm nuts on the hangers and let the exhaust sag. -Mike

[@Mr._slow2.0]

Mine doesn’t go in all the way no matter how hard I hit it there’s a half a inch gap between diff and that ring on the flange do Yk the cause or fix?

[@bavhaustv9795]

@@Mr._slow2.0 try rotating the driveshaft or other rear wheel to get a different alignment -Mike