E46 M3 CDV delete..Yes or No?

[shauwn]

I did some research on the CDV delete and was wondering what you guys thoughts are one doing it..does it really make a difference on shifting between 1 and 2 and 3

any thoughts?

 

[GravityLee]

I didn’t notice any difference before/after, maybe I wasn’t shifting fast enough

 

[AdiS]

I did this on my E46 M3 and noticed no difference. YMMV.

 

[shauwn]

lol thought so..thx guys

 

[TBP88]

Made a difference in 1-2 shifts on Z4M (difference gearbox though AFAIK), the 2nd gear pickup on Z4M is very jerky - either you have to be super gentle or you have to hammer it. Trying to do a "normal" pull of then 1-2 shift just makes the gearbox groan.

 

[Blue Shirt]

I removed the CDV on my old Z4 3.0si and it made a noticeable difference in clutch engagement which felt much more direct and controllable.

The M3 has a different clutch and gearbox though, so I don't know to what extent the CDV removal will make a difference.

 

[Serg_ZA]

Did the CDW delete on my 330ci and made a noticeable difference in clutch engagement during spirited driving.

 

[momo1]

Did it on my Z4MC and also felt a noticeable difference, especially between 1st and 2nd

 

[Clint@MMS AUTO]

I’ve done it on 3x ///M Cars now (2x z4m and a e46 M3) , it definitely makes a difference.

 

[cato3]

new parts that must be bought for this to be done .is there any

 

[Clint@MMS AUTO]

None, just jack up, clamp the line, remove the CDV, screw in the line in and then bleed the clutch if needed and u are done .