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      01-20-2017, 02:59 PM   #1
k31ron
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Tighten up suspension?

I was going to sell my 330d as the miles are adding up at 95k on an 11 plate, but after test driving loads of stuff I came away thinking I'd have to spend an awful lot of money to get anything that was actually significantly better (new 330d, 335d are only incremental improvements) so decided to sell my wifes car instead :-)

But I did realise my car is understandably, not quite as "tight" as it used to be....still great handling but perhaps a bit "rollier" coming into corners then it used to be.

Already decided to change gearbox and diff (sealed for life) oil but thinking about suspension, I don't need a track day car (my Z4 does that) just a fun daily drive so not looking to spend loads on fancy blisteins or coilovers but at those miles is it worth changing the shocks? (250 gets all 4 Sachs) any bushes that are "bound" to need doing on E90s? or other thoughts?...not looking to spend a fortune as everything still works fine but a c500 refresh is fair enough.

appreciate your thoughts?

Last edited by k31ron; 01-20-2017 at 05:34 PM.
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      01-20-2017, 05:36 PM   #2
E60525d
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I'm in a similar position. I've just changed the front dampers to original sachs a long with new top mounts and bump stops. It has made a significant improvement. I'm doing the rear plus the rubbers when the improves too.

See my build thread for info.

Also I'm doing the diff oil and gearbox oil too. I've bought the diff oil and pump, just need good weather now.
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      01-21-2017, 08:57 AM   #3
k31ron
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Quote:
Originally Posted by E60525d View Post
I'm in a similar position. I've just changed the front dampers to original sachs a long with new top mounts and bump stops. It has made a significant improvement. I'm doing the rear plus the rubbers when the improves too.

See my build thread for info.

Also I'm doing the diff oil and gearbox oil too. I've bought the diff oil and pump, just need good weather now.
Just had a read, good work. Did mounts need doing? Or preventative?

Liked the mod to replace phone holder, will be doing that now too.
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      01-21-2017, 09:30 AM   #4
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Doing top mounts is a no brainer if you replace the dampers as there is no extra labour involved. The steering feel did improve afterwards.
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      01-23-2017, 05:22 AM   #5
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First thing to change would be the suspension mounts. Rears are REALLY easy to do, and not particularly expensive.

If that doesn't help, then shocks. Springs don't really slacken, so don't get fooled in to buying new ones.

After that, rear subframe inserts, rather than trying to replace the subframe bushes themselves.

Finally, front suspension arms. (They're a ballache to do, lol)
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      01-23-2017, 05:48 AM   #6
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Quote:
Originally Posted by k31ron View Post
not looking to spend a fortune as everything still works fine but a c500 refresh is fair enough.

appreciate your thoughts?
With that sort of mileage, your definately due to replace shocks, springs and top mounts and maybe even control arms.

I was in exactly the same boat as you. Ended up with doing a full suspension refresh with the B12 Pro kit.

This includes bilstein shocks and eibach springs all round. So much better! Car is tighter, wallowy boat behaviour gone, and much more planted.

I got the kit from Germany via http://www.mk-fahrwerkstechnik.de/. Cost of suspension was approx 460 and ordered front top mounts for 70. Had the whole lot fitted for 200.

E92 330D = http://www.mk-fahrwerkstechnik.de/BI...-d-46-180650_1

E90 330D = http://www.mk-fahrwerkstechnik.de/BI...-d-46-180568_1

E91 330D = http://www.mk-fahrwerkstechnik.de/BI...-d-46-180599_1

If you go this route, replace the top mounts (front and rear) as they will need to come out to fit the kit, anyway.

Here are some videos to consider:

(B12 pro kit = Bilstein shocks and Eibach springs VS stock)

(Eibach springs VS stock)
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      01-23-2017, 02:30 PM   #7
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Same boat for me also. The car handles like a boat with the 112k mile old SE suspension.

I'm planning on going for the Bilstein B12 Pro Kit, front and rear top mounts, bump stops all round and debating whether to get the M3 front control arms.

It seems you might as well get the control arms at the same time and save on getting another alignment in the future when they do go bad.
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      01-24-2017, 04:25 AM   #8
k31ron
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thanks for the tips guys, will put shocks and top mounts on my shopping list to start with.
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      01-24-2017, 05:46 AM   #9
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Quote:
Originally Posted by sleepysnake View Post
Same boat for me also. The car handles like a boat with the 112k mile old SE suspension.

I'm planning on going for the Bilstein B12 Pro Kit, front and rear top mounts, bump stops all round and debating whether to get the M3 front control arms.

It seems you might as well get the control arms at the same time and save on getting another alignment in the future when they do go bad.
Bump stops are included in the B12 Pro kit
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      02-09-2017, 02:37 PM   #10
k31ron
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Lots of parcels arrived in the post today...

4 x Eibach Springs
4 x Blistein Shocks
4 x Top Mounts
2L diff oil
2L gearbox oil

think i might have got a bit carried away...
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      02-09-2017, 05:14 PM   #11
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Keep us posted on how you get on and what improvements you feel
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      02-13-2017, 03:47 PM   #12
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Quote:
Originally Posted by k31ron View Post
Lots of parcels arrived in the post today...

4 x Eibach Springs
4 x Blistein Shocks
4 x Top Mounts
2L diff oil
2L gearbox oil

think i might have got a bit carried away...
Just wondering did you go with the B12 kit?

I'm in a similar position, car has just under 100k on the clock and I want to refresh the suspension without going over the top.
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      Yesterday, 03:49 AM   #13
k31ron
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Quote:
Originally Posted by mayhs View Post
Just wondering did you go with the B12 kit?

I'm in a similar position, car has just under 100k on the clock and I want to refresh the suspension without going over the top.
No, I wanted more OEM spec (and less expense), had to return B4 in the end as received SE rather than sport. Sachs alternatives now in the post.
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