[daveyfx]

Hi all -

I'm a noob to the BMW world as I just picked up a black 340i with xdrive two days ago, retiring my 2009 WRX.

It looks like the 340i platform is still fresh enough that there's not much on the market in terms of suspension upgrades. Are there any coilover options out at the moment, or are we stuck waiting for the aftermarket?

Thank you,
Dave

[SLOWER]

As of today the only option is the Bilstein B14 kit. Mine are going on this Friday.

[RedKloud]

I'm waiting for the KW Street Comfort for 340i.
Also someone said that an xDrive M performance suspension might be coming out this year.

[RedKloud]

Originally Posted by SLOWER

As of today the only option is the Bilstein B14 kit. Mine are going on this Friday.

Looks like the B14 drops the car 30-50 mm. Would that be a problem with xDrive?

[daveyfx]

Originally Posted by RedKloud

I'm waiting for the KW Street Comfort for 340i.
Also someone said that an xDrive M performance suspension might be coming out this year.

Same. I'd really like to see the KW's come out so I can get decent wheels and get rid of the gap.

[SLOWER]

Originally Posted by RedKloud

Looks like the B14 drops the car 30-50 mm. Would that be a problem with xDrive?

50mm is less than 2". Wheel gap on XDrive is like 3 feet, so no problem.

[daveyfx]

Looks like KW has at least a placeholder for the V1 coils. I'm gonna call tomorrow and heckle them about the Street Comforts.

http://www.kwsuspensions.com/product...-v1-15009.html

The wheel gap on the xDrive is just absurd.

[daveyfx]

Response from KW technical support:

Thank it appears that our website has not received updates for the new 2016 models but I have asked our KW manager about this and we are using the kits from the 2014 335i xdrives. When searching on our website please choose this model to find available kits.

Click here: http://www.kwsuspensions.com/product...coilovers.html

I guess since the F30 chassis hasn't changed, the KW's will work.

[SLOWER]

Oh WTF. So no changes in suspension from 335 to 340 after all that?

[RedKloud]

Looks like they've updated the website. Street Comfort now compatible with 340i.

[daveyfx]

Yep, I even double-verified with the same rep to make sure there's no modifications required for proper fitment.

Yes correct there is no modification needed. The chassis is the same and so therefore BMW uses the same dampers and springs, in turn we do the same. Our Germany R&D team does not go into detail on all testing and development for these vehicles but they will not release fitment guides to us unless they are 100% sure this will work. Please proceed.

Looks like it's good to go. I'm going to order the kit soon... as soon as I can pick out some wheels that look good on a black 340

[Big Nodge]

Oh snap! Been waiting for some options from KW. I hope this means the EDC coils work on the 340i as well, I want to keep my adaptable dampers.

[daveyfx]

Originally Posted by Big Nodge

Oh snap! Been waiting for some options from KW. I hope this means the EDC coils work on the 340i as well, I want to keep my adaptable dampers.

It looks like the kits include "EDC cancellation," so keeping your EDC seems outside the realm of possibility.

[Big Nodge]

Originally Posted by daveyfx

It looks like the kits include "EDC cancellation," so keeping your EDC seems outside the realm of possibility.

Anything's possible with enough $$!

What you write is true for the V1, V2 etc. and I think the street comforts. I'm talking about KW's DDC coils that keep the adaptive functions. They have two versions, a plug and play version that uses the OEM sport/eco pro switch to change modes and a more custom version that has its own controller. From looking at the website it's not clear if the pre-LCI xdrive DDC coils will work on the 340xi. Hopefully they just haven't updated the website yet.

The downside is the DDC coils cost as much or more than V3s.

https://www.turnermotorsport.com/p-2...FZI9gQodEqIH_g

[jww///95]

Originally Posted by daveyfx

It looks like the kits include "EDC cancellation," so keeping your EDC seems outside the realm of possibility.

I want kw to offer their sleeve kit for the f3x factory adaptive dampers like they make for the f8x.

[Big Nodge]

Originally Posted by jww///95

I want kw to offer their sleeve kit for the f3x factory adaptive dampers like they make for the f8x.

Interesting, I wasn't aware of that. You're talking about the adjustable spring kit for the F80?

Of course, the other option to keep your EDC is Dinan springs + shockware. Not out yet for the 340xi.

[jww///95]

Originally Posted by Big Nodge

Interesting, I wasn't aware of that. You're talking about the adjustable spring kit for the F80?

Of course, the other option to keep your EDC is Dinan springs + shockware. Not out yet for the 340xi.

Yeah, i think it's had a few different names over the years... Currently marketed as the HAS kit.

http://f80.bimmerpost.com/forums/sho....php?t=1031521

The strut housing is significantly different on f8x vs. f3x but still nice to dream.

Unrelated note... If you don't care about losing the adaptive dampers, you can just code out the feature rather than purchasing the delete module.

[Big Nodge]

Got it, thanks. I'm hoping to keep EDC, if nothing else to soften the ride a bit in winter when the roads around here get rough. But will have to pay to play, clearly.

[daveyfx]

Originally Posted by Big Nodge

Anything's possible with enough $$!

What you write is true for the V1, V2 etc. and I think the street comforts. I'm talking about KW's DDC coils that keep the adaptive functions. They have two versions, a plug and play version that uses the OEM sport/eco pro switch to change modes and a more custom version that has its own controller. From looking at the website it's not clear if the pre-LCI xdrive DDC coils will work on the 340xi. Hopefully they just haven't updated the website yet.

The downside is the DDC coils cost as much or more than V3s.

https://www.turnermotorsport.com/p-2...FZI9gQodEqIH_g

I just asked the technical adviser about the DDC plug and play kit.

Hello,

Yes these kits will work too, same rules it made for the same chassis code.

Respectfully,

Agustin Gomez
Technical Advisor

[Big Nodge]

Very cool, many thanks Davey.

[Big Nodge]

Did any of you 340xi guys end up pulling the trigger on the Street Comforts? I'm considering these more and more.

[cfm56d7b]

Some time ago, several forum members from the East Coast asked me to share pictures of KW Street Comfort coilovers set at the highest setting to navigate snow covered roads. Vehicle: 2013 BMW 335i xDrive sedan. This is the thread:

http://f30.bimmerpost.com/forums/sho....php?t=1256825