I have a sals diff in my series 3, did an oil change now the diff bung leaks. Before I pull it out can someone shed some light on what the probable cause is?
1. do they have a brass/copper washer in the bottom of the hole to seal?
2. should there be some sort of thread tape stuff on the bung?
3. ???
I put some pipe thread sealant on mine when it wept. No trouble since. the stuff goes off in the absence of air, but not super hard. Easy to undo and get the old stuff off.
I'll look for the name later if you want.
Don.
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