Cdv removal clutch delay valve OMG!

MACK · Post by **MACK** » Fri Nov 10, 2017 9:34 am

jamie_z4 wrote: ↑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

Don't hold back Jaime!

I dont have any direct experience of Munich Legends but they do seem to have let's say "mixed reviews" on various car forums. This incident would certainly make me think twice if I was contemplating using them

jamie_z4 · Post by **jamie_z4** » Fri Nov 10, 2017 9:43 am

MACK wrote: ↑Fri Nov 10, 2017 9:34 am
jamie_z4 wrote: ↑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
Don't hold back Jaime! I dont have any direct experience of Munich Legends but they do seem to have let's say "mixed reviews" on various car forums. This incident would certainly make me think twice if I was contemplating using them

you know me

It is though isn't it? Its been proved in this thread how easy it is with no need for any bloody braided hose! Maybe Dhobbs needs to point them in the direction of this thread...

elevensies · Post by **elevensies** » Fri Nov 10, 2017 1:15 pm

is there a link on how to remove please ?

davros · Post by **davros** » Fri Nov 10, 2017 2:50 pm

Hi elevensies, if you go back to page 5 of this thread Mike (DLV) has provided a really good guide on how to remove the CDV

Swiftly · Post by **Swiftly** » Fri Nov 10, 2017 3:25 pm

elevensies wrote: ↑Fri Nov 10, 2017 1:15 pm is there a link on how to remove please ?

Here is a video which might help you, although it is a real easy job to do yourself.

elevensies · Post by **elevensies** » Sat Nov 11, 2017 12:06 pm

thats brill thanks

olsonn · Post by **olsonn** » Sat Nov 11, 2017 12:24 pm

I think I will ask Mike if he can do mine when I come down to get some reprogramming done, sounds like a quick upgrade

Vornwend · Post by **Vornwend** » Sat Nov 11, 2017 3:14 pm

I want to get this done on mine too. Is there anyone near Bristol/Gloucester who does it as I don't have exactly the right tools or lifting kit to get comfortable access to it. Obviously I'd be prepared to pay for your time

MACK · Post by **MACK** » Sat Nov 11, 2017 6:49 pm

Vornwend wrote: ↑Sat Nov 11, 2017 3:14 pm I want to get this done on mine too. Is there anyone near Bristol/Gloucester who does it as I don't have exactly the right tools or lifting kit to get comfortable access to it. Obviously I'd be prepared to pay for your time

This is a job any garage should be more than capable of doing for you. Alot of general garsges might not have heard of it but certainly anyone familiar with BMWs such as a specialist will have. It's not like say a roof motor relocation that in many cases is beyond the remit of even BMW specialists and more the domain of some of the folks on here.

dhobbs · Post by **dhobbs** » Sat Nov 11, 2017 7:12 pm

jamie_z4 wrote: ↑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

I'm not wholly convinced by their expertise to be honest. Their communication is terrible. They repaired my ABS pump and didn't bleed the system properly, had to take it back and get it re-bled!

MACK · Post by **MACK** » Sat Nov 11, 2017 8:22 pm

dhobbs wrote: ↑Sat Nov 11, 2017 7:12 pm
jamie_z4 wrote: ↑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
I'm not wholly convinced by their expertise to be honest. Their communication is terrible. They repaired my ABS pump and didn't bleed the system properly, had to take it back and get it re-bled!

Sounds like one to avoid

Mark-Z4 · Post by **Mark-Z4** » Sun Nov 12, 2017 4:25 pm

Ducklakeview wrote: ↑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

Mr Tidy · Post by **Mr Tidy** » Wed Nov 22, 2017 9:30 pm

Not a Z4, but it's mechanically the same as a pre-facelift so kind of relevant.

Anyway I just collected my 325ti from being serviced and having the CDV removed. I also had the gear-lever bushing replaced and gearbox oil changed.

I've only done a few miles in it, but it feels like a different car with a much less sloppy gearchange and no kangarooing!

If only I'd had it done sooner.

Magicarcher · Post by **Magicarcher** » Wed Nov 22, 2017 10:19 pm

Really interested in this because I hate the 1 to 2 shift on my Z I find I have to alter the sequencing between my right and left foot differently (and more carefully) than any other car I have driven, to get anything like an acceptable pull away. Even then the shift feels very clunky, I assume this mod will make this better.

The only concern I have is I am not really following why did BMW fit it in the first place if it makes the gearchange a less pleasant experience, there must be some benefit of it being there (presumably it protects against something). If so what are the risks of removing it?

Ducklakeview · Post by **Ducklakeview** » Wed Nov 22, 2017 10:23 pm

Magicarcher wrote: ↑Wed Nov 22, 2017 10:19 pm Really interested in this because I hate the 1 to 2 shift on my Z I find I have to alter the sequencing between my right and left foot differently (and more carefully) than any other car I have driven, to get anything like an acceptable pull away. Even then the shift feels very clunky, I assume this mod will make this better.

The only concern I have is I am not really following why did BMW fit it in the first place if it makes the gearchange a less pleasant experience, there must be some benefit of it being there (presumably it protects against something). If so what are the risks of removing it?

In short - none!

BMW fitted them to basically "protect the drivetrain from abuse" ie people repeatedly "dumping" the clutch, yup in a "sports car" so basically, no matter how quickly YOU release the clutch, it will only engage at the preset maximum speed allowed by the CDV.

Remove the CDV and YOU get the control of how fast & when it engages.

Mike

Z4-forum.com

Z4-forum.com