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Seat Rails
Posted: Mon Sep 29, 2025 9:41 am
by GT456!
I'd like to gain additional leg room. Wondering

if I could extend the driver's seat rails to gain an extra 2 to 3 inches?
Seat Rails
Posted: Mon Sep 29, 2025 9:50 am
by X5Sport
You probably can with fabricating something. BMW don’t offer such but it should be possible.
You will need to make it strong in order to stop the extended rail bending downward at ‘full-aft’. Probably best to fabricate a complete rail rather than try to weld to the existing ones.
Another choice may be to try and move the rails aft a bit. That will depend upon where the fixings go into the floor. If there’s no adjustment there then you’d be looking at new floor mounting points, and those will need to be crash proof or (absolute worst case) the whole seat could pull out of the floor.
Seat Rails
Posted: Mon Sep 29, 2025 10:00 am
by GT456!
Very possible...!
Now I wonder if there are not existing longer rails on a different bigger model BMW that would fit?
Seat Rails
Posted: Fri Oct 03, 2025 6:57 pm
by sapphireblack
I think this is an ambitious plan myself. Making new fixings into the floor could prove a challenge. Possibly seat rails from something like a seven series of the same era might be an option if they're longer.
Seat Rails
Posted: Fri Oct 03, 2025 7:01 pm
by sapphireblack
Got the same silly message again saying i dont have permission to delete posts on this forum.
Seat Rails
Posted: Fri Oct 03, 2025 7:33 pm
by X5Sport
Dunno why you’re getting that. I’ve deleted the duplicate but I was under the impression members can delete their own posts.

Seat Rails
Posted: Sat Oct 04, 2025 9:40 pm
by sapphireblack
X5Sport wrote: Fri Oct 03, 2025 7:33 pm
Dunno why you’re getting that. I’ve deleted the duplicate but I was under the impression members can delete their own posts.
I have successfully deleted in the past. Why these issues crop up i have no idea.
Seat Rails
Posted: Sat Oct 04, 2025 9:43 pm
by sapphireblack
I just tried to delete my last post. This is the message.
Screenshot_20251004_214120_Samsung Internet.jpg
Seat Rails
Posted: Sat Oct 04, 2025 10:30 pm
by X5Sport
I’ll check the the Admin to see what gives. Probably a software switch after an upgrade isn’t as it was.