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Adaptive suspension replacement

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Woodie
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Adaptive suspension replacement

Post by Woodie » Fri Feb 02, 2024 10:13 am

My Z4 28i has failed its MOT on the front near side suspension leaking oil.
It’s the adaptive suspension which, I have been quoted at £750 for that one corner to be replaced. I would have expect the garage to tell me you need to do all 4 corners or at the very lease across the same axel.
The rear off side has misting listed as an advisory, so in the not too distant future could well need replacing.

To replace all corners is pretty steep at around £3000 on a car that’s worth about £10k.
Thinking to go down the after market with a Bilstein kit (non adaptive) which are around £1000, not fussed on the lowering aspect.

Are there issues with doing this or a better alternative?
Also recommend any garages in West or North Yorkshire to do the work.

Thanks

matsmith749
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Adaptive suspension replacement

Post by matsmith749 » Fri Feb 02, 2024 10:29 am

Lots have done the same, straightforward swapover.

You will also need the suspension ecu unpluigging under the bonnet & the adaptive suspension coding out, or you will get lights on the dash / bongs etc - again straightforward job, but you will need someone who knows how.

I've done it for a forum member, if I can manage it, anyone can :) instructions are on the tinterweb if you search.
From Jan 2023 2016 e89 Z4 35is / mineral white / coral red interior / all the extras
SOLD 2010 e89 Z4 35is / space grey / coral red interior / all the extras
SOLD 2007 e85 Z4 3.0 si sport / midnight blue / champagne interior

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tiglon
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Adaptive suspension replacement

Post by tiglon » Fri Feb 02, 2024 10:40 am

Keep an eye out on autodoc, they often have the B12 kit for around £600 or even less. That's the 35is kit, but I assume for the 28i it's the same or very similar.
2014 E89 35is Valencia Orange 788M wheels (M2 Competition), E90 M3 control arms, Eibach Pro Kit Springs, MHD Stage 1

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B21
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Adaptive suspension replacement

Post by B21 » Fri Feb 02, 2024 12:07 pm

Some folks find the b12 kit a bit too aggressive on lowering..you could get the B8 shocks and suplex springs of the correct poundage instead?

The Bilstein is very cost effective and pretty good..IMHO
Last edited by B21 on Fri Feb 02, 2024 1:36 pm, edited 1 time in total.
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
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john-e89
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Adaptive suspension replacement

Post by john-e89 » Fri Feb 02, 2024 1:19 pm

Another :thumbsup: for Suplex springs, I’ve had some, very good kit. :driving:
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javis20
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Adaptive suspension replacement

Post by javis20 » Fri Feb 02, 2024 3:35 pm

or you could do this. https://www.ebay.com/itm/385054638671

Someone on another forum purchased these a couple of years ago and said they worked well. I checked with him after a year of use and he is still satisfied.

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Deepseaskateboard
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Adaptive suspension replacement

Post by Deepseaskateboard » Sun Feb 11, 2024 12:20 pm

Woodie wrote: Fri Feb 02, 2024 10:13 am My Z4 28i has failed its MOT on the front near side suspension leaking oil.
It’s the adaptive suspension which, I have been quoted at £750 for that one corner to be replaced. I would have expect the garage to tell me you need to do all 4 corners or at the very lease across the same axel.
The rear off side has misting listed as an advisory, so in the not too distant future could well need replacing.

To replace all corners is pretty steep at around £3000 on a car that’s worth about £10k.
Thinking to go down the after market with a Bilstein kit (non adaptive) which are around £1000, not fussed on the lowering aspect.

Are there issues with doing this or a better alternative?
Also recommend any garages in West or North Yorkshire to do the work.

Thanks
You can get the adaptive shocks refurbed, there is a post about it on here. It’s much less for this to be done.
I’m not sure if they send you different adaptive shocks and keep yours to refurb for quicker turn around etc. worth looking into, it’s somewhere in the Netherlands if I recall correctly... you DHL it all over.

It’s another option which you could explore. It’s worth mentioning that a 28i with OEM adaptive shocks is incredibly rare.

Woodie
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Adaptive suspension replacement

Post by Woodie » Sun Feb 11, 2024 2:27 pm

Cheers I will have look into that.

mcbutler
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Adaptive suspension replacement

Post by mcbutler » Sun Feb 11, 2024 8:59 pm

You can get your existing dampers refurbished, an hour on the old google will find you a company that'll do them for you...
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