Cdv removal clutch delay valve OMG!

markalp · Post by **markalp** » Tue Nov 07, 2017 1:44 pm

jamie_z4 wrote: ↑Sat Oct 21, 2017 6:13 pm
ben g wrote: ↑Sat Oct 21, 2017 5:58 pm Been meaning to do this to mine ever since buying it, nearly 6 years ago

I'm always a bit worried it'll cause a failure somewhere in the drivetrain though.
Nah mate it's there for nobs who don't know how to drive bmws n end up doing the clutch and engine mounts in. You'll be fine!

I better not get mine done then, my clutch control is awful

JINGLE · Post by **JINGLE** » Tue Nov 07, 2017 11:34 pm

Well I was gonna attempt it whilst up on the ramps... now mikes talk of master cylinders etc has scared me a little.... I don’t even know where or what that is

I’ve done all the cosmetic work on my car myself, but I’ve been very conscious of touching brakes or clutch etc as that’s well past my ability.... I guess I’ll see how brave I feel on Saturday when it’s up on the ramps

markalp · Post by **markalp** » Wed Nov 08, 2017 1:16 am

Ducklakeview wrote: ↑Tue Nov 07, 2017 12:13 am
JINGLE wrote: ↑Tue Nov 07, 2017 12:05 am I still havnt done the CDV delete in my little 2.0 I feel like I’m missing out
Trust me, you are. I was sceptical until I did the 2.0,as was Jamie until I did his 3.0 and his E46..

Mike

Quick question, in my old car I would depress the go faster pedal at the same time as I started to release the clutch pedal, in the Alpina I have to start releasing the clutch before I start applying the accelerator. Is it the CDV causing this behaviour. maybe thats why my clutch control has gone to pot, and it has nothing to do with age/reaction times

Steve84N · Post by **Steve84N** » Wed Nov 08, 2017 1:54 am

Sounds like CDV.

Capa · Post by **Capa** » Wed Nov 08, 2017 10:03 am

Interesting - is it reversible? I don't really notice any problems at the moment, but I'm open to giving it a try...

Ducklakeview · Post by **Ducklakeview** » Wed Nov 08, 2017 10:43 am

markalp wrote: ↑Wed Nov 08, 2017 1:16 am ]

Quick question, in my old car I would depress the go faster pedal at the same time as I started to release the clutch pedal, in the Alpina I have to start releasing the clutch before I start applying the accelerator. Is it the CDV causing this behaviour. maybe thats why my clutch control has gone to pot, and it has nothing to do with age/reaction times

Yes, that's the CDV doing what it's designed to do. No matter how fast you release the clutch, it will only ever close at it's own speed due to the CDV, hence your need to release it before hitting the gas. Remove it and you will probably stall the first time you pull away as the clutch will be fully engaged before you hit the gas..

Mike

Mark-Z4 · Post by **Mark-Z4** » Wed Nov 08, 2017 11:14 am

Is there a how to for this?

Ducklakeview · Post by **Ducklakeview** » Wed Nov 08, 2017 11:19 am

Mark-Z4 wrote: ↑Wed Nov 08, 2017 11:14 am Is there a how to for this?

Go back one page...

Mike

aarsavage · Post by **aarsavage** » Thu Nov 09, 2017 8:04 pm

MrPT wrote: ↑Mon Nov 06, 2017 10:51 pm
aarsavage wrote: ↑Mon Nov 06, 2017 10:43 pm Was under the car the weekend, am I right in thinking my CDV has already been deleted?

Yes.

Thanks.

I cant imagine how bad it was before, I was hoping I could improve the 1/2nd gear change, but I guess this is as good as it gets.

MrPT · Post by **MrPT** » Fri Nov 10, 2017 12:00 am

aarsavage wrote: ↑Thu Nov 09, 2017 8:04 pm
MrPT wrote: ↑Mon Nov 06, 2017 10:51 pm
aarsavage wrote: ↑Mon Nov 06, 2017 10:43 pm Was under the car the weekend, am I right in thinking my CDV has already been deleted?

Yes.
Thanks.

I cant imagine how bad it was before, I was hoping I could improve the 1/2nd gear change, but I guess this is as good as it gets.

Hah, yeah that’s what I thought too. There’s a notch right in the middle of the shift. Helps a bit if you change “backhand”, i.e. palm facing outwards.

RyanB88 · Post by **RyanB88** » Fri Nov 10, 2017 7:20 am

I’ll be removing the cdv this weekend, along with changing my water pump to get my zed back on the road, can’t wait!

dhobbs · Post by **dhobbs** » Fri Nov 10, 2017 7:22 am

My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!

Still got it in

MACK · Post by **MACK** » Fri Nov 10, 2017 8:27 am

dhobbs wrote: ↑Fri Nov 10, 2017 7:22 am My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!

Still got it in

WTF never heard that one before! Did they give you any sort of rationale for this? Honestly can't see one for removing the CDV device itself. I've been removing these peskie little things on BMWs for must be over a decade now and never had an issue with a standard hoses.

jamie_z4 · Post by **jamie_z4** » Fri Nov 10, 2017 8:56 am

dhobbs wrote: ↑Fri Nov 10, 2017 7:22 am My car was in Munich Legends in Sussex recently having the ABS pump repaired, I said whilst you're there can you whip the CDV off, and they said yes but we'll have to order a braided hose to replace the rubber one! I said I thought it was a simple job of just removing the little CDV and joining the two pipes together!
I said don't bother then!

Still got it in

utter bullshit. sounds like they couldn't be arsed doing it

idej_z4 · Post by **idej_z4** » Fri Nov 10, 2017 9:08 am

aarsavage wrote: ↑Thu Nov 09, 2017 8:04 pm
MrPT wrote: ↑Mon Nov 06, 2017 10:51 pm
aarsavage wrote: ↑Mon Nov 06, 2017 10:43 pm Was under the car the weekend, am I right in thinking my CDV has already been deleted?

Yes.
Thanks.

I cant imagine how bad it was before, I was hoping I could improve the 1/2nd gear change, but I guess this is as good as it gets.

I've done the CDV delete...but also a weighted gear nob and changed the gear box oil to Millers - I only get the notch a slight bit sometimes now.

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