[markus037]

just wondering how big of a PITA it is on the x-drive and if theres a nice improvement in the pedal feel.

[Dylan]

I did it, and i 100% suggest doing it. I didnt find it difficult at all, maybe a 45 minute job for me.

[OceanView18]

absolutely recommend it - its very noticeable - did it on my 2011 328i xdrive, and the shifts from 1 to 2 are noticeably smoother because the car is no longer delaying the release of clutch - its responding to my command (what a concept!) this, along with switching to non-run flat tires on that car are a must - hope jump into coilovers soon as well - I didn't do this myself though - bought the Zeckhausen valve replacement and paid a shop in Boston to do this, about 90 dollars for labor and the $25 part from Zeckhausen racing

[Sidewinderpb]

Do it.

Still delays ever so slightly, but a monumental improvement.

[critical05]

http://www.e90post.com/forums/showthread.php?t=965035

[e90Mark]

The only PITA is disconnecting the front drive shaft to get to the CDV.

The how to there has the guy holding the shaft with a pry bar, or whatever you can wedge to make the shaft not spin, but you can use like an electric impact wrench to spin the fasteners out.

Highly recommend removing the CDV.

[markus037]

just ordered the M3 CDV from ECS tuning for $10. ant wait to see how it works

[e90Mark]

There's nothing to it, it's really just a tube of plastic.

[markus037]

oh well, atleast its factory

[Dylan]

Originally Posted by e90Mark

The only PITA is disconnecting the front drive shaft to get to the CDV.

The how to there has the guy holding the shaft with a pry bar, or whatever you can wedge to make the shaft not spin, but you can use like an electric impact wrench to spin the fasteners out.

Highly recommend removing the CDV.

I did my cdv delete with the driveshaft in place. So there is ways around removing the driveshaft

[critical05]

Driveshaft wasn't difficult to remove at all. I didn't use an impact because my torx sockets weren't impact grade.

Longest part of the job was bleeding the clutch.

I spent more time researching how long/difficult it would be to remove the CDV than the job takes. Just do it!

[gbouton]

CDV removal and a proper clutch stop make a noticeable improvement...definitely do it.

[e90Mark]

Originally Posted by markus037

oh well, atleast its factory

True, I was going to go with the M3 one, but ended up getting the BMS one with my large order.

Originally Posted by Dylan

I did my cdv delete with the driveshaft in place. So there is ways around removing the driveshaft

You must have small hands.

Originally Posted by critical05

Driveshaft wasn't difficult to remove at all. I didn't use an impact because my torx sockets weren't impact grade.

Longest part of the job was bleeding the clutch.

I spent more time researching how long/difficult it would be to remove the CDV than the job takes. Just do it!

The bleeding, yes!

Originally Posted by gbouton

CDV removal and a proper clutch stop make a noticeable improvement...definitely do it.

Truth!

[max_k20]

My local shop spent 45min including bleeding of the valve (the mechanic did quite a few at that place) to replace it with a "modified" one. My only thought after install was ... why I didn't do that sooner !