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There is a bushing there also. If the torque converter isn't straight it will eat the seal every time. It is an internal bushing, the transmission has to be torn down/rebuild.. Also the torque converter can have a ridge where the seal sets. This is a converter replace.
Check the hub. You should inspect the old torque converter you are removing for damage to the converter hub that rides in the pump of the transmission. If you find any wear on the hub at all, you should replace both seal and bushing. If you find no wear at all, you may be fine with just a seal replacement. You should at least do one (seal) if not both. (seal & bushing).
could be cv joint but jack up wheels and move tire up down and left right up down if play check ball joints /anti-sway bar bushings--------if play left to right than check idler arms and steering system /and anti sway bar bushings
Hi! If, as you say, your torque converter is fully engaged, then the only thing I can think is that the unit doesn't match! It may be that the dimensions between the two are different - meaning that when you try to fully tighten the bolts, the 1st motion shaft bottoms out in the flywheel support bush (or similar). Might be worth speaking with a main BMW dealership to get advice/info?
Dont waste your time and money trying to use a transmission stop leak product, they don't work on large leaks, you say the leak is excessive in this case the you must remove the transmission to access and remove the torque converter, after you have removed the torque converter carefully inspect the torque convert imput shaft for wear and also you will need to visually inspect the transmission front pump bushing for wear also, I have seen it all to often people just replace the seal thinking it was just a seal failure, well more times than not there is a reason for seal more than just the age of the seal, excessive wear on trans pump bushing and torque converter imput shaft is usaully the cause, check and repair those as good practice during this repair unless you just like to do the repair over again for free... also check the torque converter run out, sometime when they are repaired they are welded back together somewhat crooked which will cause it to spin off of a true center, this will cause immediate damage to transmission. Check also your engines crankshaft end play for looseness this can cause wobble which will transfer to transmission causing this problem as well... do the repair thouroughly and who ever does it for you have them check all that I listed and you should get a good repair which will last without issues.... please rate my help thanks...
yes , depending on wheter you talking about torque converter seal or rear engine main seal , on trans if your front pump bushing has excessive wear then it will not seal because the torque converter input shaft will ride on seal more than it is supposed to and also it will not run true, also check TC mounting of flex plate if you flex plate is not centered then it will rotate out of balance and cause leaks and pump damage, if you talking about a rear main engine seal you may have a issue with run out and or bearing wear issues cause seal to not be able to do its job, check all those issues, crank shaft end play as well as up and down play and check rotational run out on TC of trans and pump bushing in trans pump... hope this helps, thanks please rate...