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Rob @ dietchwerks noticed my rear upper control arm bushings were worn so I had them replaced under warranty. This solved the metallic squeaking noise I assumed were normal for our cars. if you hear any rear suspension squeaking, see pics below
 

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Deitch noticed the same thing on my car. Right rear upper bushing. When I took the car in for some service, they said the bushing had been installed backwards... strange. Looked the same as yours did.
Cheers,
Skottoman
 

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LotusRaceShop.com
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they put the front bushing in backwards. carl
Diestch noticed the same thing on my car. Right rear upper bushing. When I took the car in for some service, they said the bushing had been installed backwards... strange. Looked the same as yours did.
Cheers,
Skottoman

The 05's, 06's and early 07's had the bushings installed this way. to help the problem the late 07's flipped the front bushing. We're still seeing the bushings move on the late cars. They move under hard braking. To fix this problem we use urethane bushings we import from England for street cars and Delrin for cars used for racing. I'll post some pictures some - Rob.
 

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The 05's, 06's and early 07's had the bushings installed this way. to help the problem the late 07's flipped the front bushing. We're still seeing the bushings move on the late cars. They move under hard braking. To fix this problem we use urethane bushings we import from England for street cars and Delrin for cars used for racing. I'll post some pictures some - Rob.
I pinned the rear bushing, the factory now puts both in from the front. the service manual has them coming from the outside in. carl
 

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Discussion Starter #8
Interesting, thanks for the tip. Mileage on your car? Track days? Hardcore driving?
like other have said, its probably not worn but just installed in a opposite orientation then the newer cars. 13k miles, no track miles (yet)
 

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Discussion Starter #9
Mine were shot as well. Unfortunately out of warranty :(
time for upgrade! actually, you can probably have some Delrin, Teflon or UHMW PE washers installed between the control arm and the bracket. It would be a piece of cake to order some washers from McMaster.com. All it takes is for someone to pull their wheels off and get some measurements (ID: bolt diameter, OD control arm housing, thickness: gap between bushing and control arm bracket.) :shrug:
McMaster-Carr
 

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time for upgrade! actually, you can probably have some Delrin, Teflon or UHMW PE washers installed between the control arm and the bracket. It would be a piece of cake to order some washers from McMaster.com. All it takes is for someone to pull their wheels off and get some measurements (ID: bolt diameter, OD control arm housing, thickness: gap between bushing and control arm bracket.) :shrug:
McMaster-Carr
Sorry I wasn't clear enough. Rob already upgraded mine to poly's. It's just that it wasn't covered under warranty. :D
 

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Sorry I wasn't clear enough. Rob already upgraded mine to poly's. It's just that it wasn't covered under warranty. :D
How do you like them?
I've had mixed success with Poly bushings in the past. Some of them tend to squeak over time if used for articulating joints and tend to have higher friction then rubber or Delrin. They are great for motor and trans mounts though.
 

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How do you like them?
I've had mixed success with Poly bushings in the past. Some of them tend to squeak over time if used for articulating joints and tend to have higher friction then rubber or Delrin. They are great for motor and trans mounts though.
Err, I think they are Poly :eek: - not entirely sure but Rob told me they are upgraded vs. factory. Frankly, I haven't noticed any difference. No noise or anything.
 

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Good excuse to switch to poly bushings. Do the engine mounts next but just window-weld the front mount or you will vibrate loose what's left of your sanity. Scary enough but you can find full aluminum bushings out there for the s1.
 

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Have had several of mine replaced - the OEM bushings don't hold up under track use - eventually I gave up and also switched to polyurethane bushes. Lotus design for this part seems pretty substandard - my understanding is the factory over time has switched around the way the bushings are installed in order to combat the problem - but not solved it TADTS

Poly bushes available from Powerflex these aren't cheap at ~ $420 for a set + installation, realignment etc. but seem to have fixed the problem, sharpened up the handling ..... but also introduced a little more NVH.

More information at SELOC Techwiki
 

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i have an early 07, better check mine!
 

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I just sent my car to the shop for a tech inspection. Looks like I have this problem. Maybe that explains the squeaking I'd hear when drively slowly up or down driveways.
 

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When I replaced my front bushings last year with Monoball solid spherical bearings (which I highly recommend), the squeaking from the front suspension went away. And the clunking in my front suspension also went away, which is the real reason I replaced them.
 

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ChrisH, did you install monoballs on the front suspension as well? Did you notice any additional NVH, or general downsides compared to stock bushings?
 

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I have the monoball spherical bushings on all corners and it was a night and day difference. Car was more connected in response inputs. If anything negative, you'll have a slight more crashing with oem LSS suspension, but it,s negligible to its rewards IMHO.
 
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