After Trans oil Change/harsh downshift now

[EODguy]

Originally Posted by crystalworks

In almost a year of ownership I've put $4500 in parts on top of the $1200 purchase price. $5700 is a small price really for a VERY well sorted wagon, but it's still taken a lot of time and effort. So just a word of caution. I knew it would need more than usual being it had 181k miles on it at purchase, but it far exceeded the usual ~$2000 in catch-up maintenance/repair usually required to turn a used BMW into a good, "drive anywhere at anytime" daily vehicle. The wife and I love it though. We're certified BMW masochists.

CW, Come on man don't list prices or my wife will figure out how much I have spent!! I don't want all my food to taste like almonds .

I'll find the email for the new old stock of e61 parts and hope that you don't "slip" and fall into the pool if your wife sees that post

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[Rockit]

I changed the oil to the Valvoline long life XL oil suggested above and when I put it in right away its 20% better. 300 miles so far and its about 40-50% better.

It will never be 100% but I would never use the BMW ZF fluid. Here is a tip, fill the trans until it just starts to run out, start the engine in park at idle. The dripping stops and you can get in about another quart until it runs out again when the engine is running.

A couple post in this thread say to replace the shift O-Rings
? I'm not sure what that takes but it probably is the problems I'm having now. I wish someone would post how to replace them.

Bottom line: On a E53 DON'T CHANGE THE TRANS FLUID. The fluid was about as nasty as it gets coming out but it shifted fine.