Hello again everyone 
So following on from my previous threads:
https://z4-forum.com/forum/viewtopic.php?t=117928
https://z4-forum.com/forum/viewtopic.php?f=2&t=118351&p=1695929#p1695929
I have decided to do a full suspension overhaul on my E85 Z4 3.0i M54 after having caster issues with front wheels eating away my arch liners and edge of bumper!
Starting with the front, I am looking to buy a new front subframe and build up from there. I have come across a few subframes in good condition for sale, but however I am unsure if any of them will fit my model. I am interested in one that has been removed from an E85 2.0i, and another one for sale has been removed from a 2.5i. These are in good condition but does anyone know if any of these would fit my 3.0i M54? Is it a direct replacement? Some say that even the E46 subframes will fit?
I will be replacing the following:
Control arms with ball joints
Lollipop bushes (powerflex)
Droplinks
Anti-roll bar bushes (purple powerflex)
Track rod and tie rods
Top mounts
Top mount reinforcement plates
Springs and dampers (undecided on setup just now, but will either be B12 pro kit or OEM Sachs dampers with H&R springs with thicker spring pads)
Wheel bearings
Engine mounts (possibly VibraTechniks)
I will tackle the rear after this and then get 4 wheel hunter alignment set up on Z4M values.
Is there anything else crucial that I may have missed or be worthwhile doing when it's apart?
Any feedback is welcomed.
Thanks
So following on from my previous threads:
https://z4-forum.com/forum/viewtopic.php?t=117928
https://z4-forum.com/forum/viewtopic.php?f=2&t=118351&p=1695929#p1695929
I have decided to do a full suspension overhaul on my E85 Z4 3.0i M54 after having caster issues with front wheels eating away my arch liners and edge of bumper!
Starting with the front, I am looking to buy a new front subframe and build up from there. I have come across a few subframes in good condition for sale, but however I am unsure if any of them will fit my model. I am interested in one that has been removed from an E85 2.0i, and another one for sale has been removed from a 2.5i. These are in good condition but does anyone know if any of these would fit my 3.0i M54? Is it a direct replacement? Some say that even the E46 subframes will fit?
I will be replacing the following:
Control arms with ball joints
Lollipop bushes (powerflex)
Droplinks
Anti-roll bar bushes (purple powerflex)
Track rod and tie rods
Top mounts
Top mount reinforcement plates
Springs and dampers (undecided on setup just now, but will either be B12 pro kit or OEM Sachs dampers with H&R springs with thicker spring pads)
Wheel bearings
Engine mounts (possibly VibraTechniks)
I will tackle the rear after this and then get 4 wheel hunter alignment set up on Z4M values.
Is there anything else crucial that I may have missed or be worthwhile doing when it's apart?
Any feedback is welcomed.
Thanks
