Lowering Seat Height

MickyG

Dedicated Member
Joined
Nov 9, 2025
Points
28
Model of Z
3
I know it’s been talked about since Z3s came out, but I like a challenge and wonder whether lowering the rear of the seat by 25mm is worth the significant effort it will require?

By adapting a standard seat base mechanism - cutting out the height adjust mechanism and some welding - it would be physically possible to lower the rear of a standard seat by a maximum of 25mm whilst retaining Fore/Aft electrically operated adjustment: also retaining the front seat mounting points will tilt the base which has been reported as useful to do by those who have used spacers at the front.

25mm doesn’t sound much, yet an annoying little worm in my ear says “ But it will feel like a lot! - Have a go!”

Will it?
Worth it?
 

MickyG

Dedicated Member
Joined
Nov 9, 2025
Points
28
Model of Z
3
It would be interesting to see if you can pull it off. Would love mine lower.
Many have said they want it lower, but is 25mm enough?
Technically it is possible: dropping the right runner of the drivers seat base is easy. Dropping the left is much more difficult for two/three reasons.
Unlike the right seat side the left sits substantially over the slide runner beneath limiting the maximum drop to 25mm - and that is only possible if a crank section of the runner is removed. Even if all this is dealt with the seat base would lower and foul the seat belt anchorage point. This can be cut, extended and welded, which physically I would have no issue with, but suspect it might not be technically acceptable to an MOT tester. Whether they would ever pick it up is highly questionable.

But my question remains - is 25mm worth the effort?
 
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