Introduction and already advice needed...
Discussion
Hello all, my name is Igor, I'm from Slovenia, and have been lurking around for a long time over PH.
I am writing you also about a problem that's been eating my nerves... I have the 2008 120d e87 , its a great car, track oriented, with B12 Bilsteins, Eibach Prokit springs and HR sways front an rear, M3 subframe parts and polyurethane bushings.
The sound:
Lately i experience the never-ending metallic clunking when going over small bumps or cobblestone road... it can be felt in front left side (around the strut) and can be felt throught the steering column and steering wheel.
not a clicking sound when I would turn the steering wheel, but a rattle up front, and sometimes in the rear back...while driving.
but it gets better in wet weather, in rain... I have 2 theories I suspect - whether the rubber somewhere hardens when its rainy outside, or - the water "lubricates" something, and the sound /feel is not so "rattly" anymore...
The feel:
The other thing I noticed is when driving in a corner fast on a bad road. The front and also the rear feels really wobbly and maybe jerks (not slides) in direction of centrfugal force- outside of the curve.
When I drive straight and I hit a larger hole with my left tyres, the car jerks to the left, feeling unstable. When driving straight!
Does this fact directs you in any way towards some other cause for the rattle rather than upper strut mount?
It has never been in an accident, and the wheel alignment is dead on. Camber in the rear and front is a bit larger (handling oriented). Tyres are new and centered.
The rattle has been worse with putting summer 18" back on.
I've read all possible forums and some suggest swaylinks (which are fine), other to change the whole suspension(checked 3 times by 3 different specialists, everythin tight), the to check the upper strut mounts (which optically are okay), I havent tested them for play yet. Then again some suggest the washers and the central nut in the upper strut may be causing the rattle.... i dont know any more...
thanks... sooo desperate... ( it used to be a really tight car, and now this....)
I am writing you also about a problem that's been eating my nerves... I have the 2008 120d e87 , its a great car, track oriented, with B12 Bilsteins, Eibach Prokit springs and HR sways front an rear, M3 subframe parts and polyurethane bushings.
The sound:
Lately i experience the never-ending metallic clunking when going over small bumps or cobblestone road... it can be felt in front left side (around the strut) and can be felt throught the steering column and steering wheel.
not a clicking sound when I would turn the steering wheel, but a rattle up front, and sometimes in the rear back...while driving.
but it gets better in wet weather, in rain... I have 2 theories I suspect - whether the rubber somewhere hardens when its rainy outside, or - the water "lubricates" something, and the sound /feel is not so "rattly" anymore...
The feel:
The other thing I noticed is when driving in a corner fast on a bad road. The front and also the rear feels really wobbly and maybe jerks (not slides) in direction of centrfugal force- outside of the curve.
When I drive straight and I hit a larger hole with my left tyres, the car jerks to the left, feeling unstable. When driving straight!
Does this fact directs you in any way towards some other cause for the rattle rather than upper strut mount?
It has never been in an accident, and the wheel alignment is dead on. Camber in the rear and front is a bit larger (handling oriented). Tyres are new and centered.
The rattle has been worse with putting summer 18" back on.
I've read all possible forums and some suggest swaylinks (which are fine), other to change the whole suspension(checked 3 times by 3 different specialists, everythin tight), the to check the upper strut mounts (which optically are okay), I havent tested them for play yet. Then again some suggest the washers and the central nut in the upper strut may be causing the rattle.... i dont know any more...
thanks... sooo desperate... ( it used to be a really tight car, and now this....)
thanks, I guess 
wow, checked everything... and everything looks perfectly tightened... dont know what now...
oh and another thing - as my plan is to fit a 3.0d turbo to my hatchback e87 120d, I need a 3" exhaust which is 75 mm...
So I guess the 130i and also the 123d exhausts with 63.5mm outer diameters are both too small.
But - the 135i has the outer pipe diameter of 75 mm which is spot on.
The only problem I see is this:
the 135i was made as E88 and E82 only. I have a 120d E87 hatchback. I have heard from some that a E88/E82 rear muffler won't fit the hatches...
Am not 100% though...
Can anybody confirm this?
Thanks!!
oh and another thing - as my plan is to fit a 3.0d turbo to my hatchback e87 120d, I need a 3" exhaust which is 75 mm...
So I guess the 130i and also the 123d exhausts with 63.5mm outer diameters are both too small.
But - the 135i has the outer pipe diameter of 75 mm which is spot on.
The only problem I see is this:
the 135i was made as E88 and E82 only. I have a 120d E87 hatchback. I have heard from some that a E88/E82 rear muffler won't fit the hatches...
Am not 100% though...
Can anybody confirm this?
Thanks!!
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