I've been using the key in the door handle recently because of issues with the remote unlocking. Reading this forum made me realize I was living on borrowed time WRT the locking mechanism, so I ordered a kit off AMZN and replaced the pieces today before I got locked out.
Damn good thing I did! The piece that usually breaks was well on its way to totally fragmenting (see pic).
On the downside, the base plate that came with the kit did not fit so I had to reuse the old one. If anyone knows which kit is the absolute highest quality, with long-lasting parts (nice if they made one with titanium parts), please post.
This is the kit I bought:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Mark
2001 3.0 Original Owner, still going
2012 E70 xDrive 35i Pre-Owned -- sold because no one could figure out the transmission problem