Group Buy CDV

S

srhutch

Legend
 East Sussex, UK
Anybody in the UK interested in buying a modified CDV, think we only need 3 or 4 people to make this worth it.

The actual CDV is only $35, but carriage is $78.77

http://www.zeckhausen.com/BMW/Z4.htm

let me know if you want one
 
Srhutch, are you sure about that!! I didn't pay anywhere near that for carriage of my CDV from Zeckhausen?
 
I've ordered one this morning, agreed the delivery @ $78.77 is a bit high, I've emailed them to clarify this. I'll let you know.
 
Shunt

The carriage costs I got were direct from the webiste, they have advised we could order 5 without carriage going up.

Would you be wiling to add any requirements to your order if that was possible?
 
srhutch said:
Anybody in the UK interested in buying a modified CDV, think we only need 3 or 4 people to make this worth it.

The actual CDV is only $35, but carriage is $78.77

http://www.zeckhausen.com/BMW/Z4.htm

let me know if you want one
Click to expand...
What does this do? Does it really make a difference to shifting?

And crucially ... is it easy to install?
 
It's got to be worth seeing if they will combine the orders, or have you guys got money to throw away?
 
$78 for shipping :o
I enquired about one at the weekend but they were out of stock until Tuesday but if the shipping is $78 then I might be up for a group buy.
 
davidpfitz said:
srhutch said:
Anybody in the UK interested in buying a modified CDV, think we only need 3 or 4 people to make this worth it.

The actual CDV is only $35, but carriage is $78.77

http://www.zeckhausen.com/BMW/Z4.htm

let me know if you want one
Click to expand...
What does this do? Does it really make a difference to shifting?

And crucially ... is it easy to install?
Click to expand...

It's a 20-30 minute job but the car needs to be lifted to get at the slave cylinder. It is VERY worth it. My Z4M is WAY smoother....
 
The cheapest option is to remove your CDV and bore the hole slightly wider. It takes 5 minutes and costs nothing, thats what a modified CDV is anyway! The other option is to throw it in the bin, that's what I did and I've never looked back!
 
Sorry guys already had an email saying they'd shipped it. And I did toy with just throwing the original one away, but I'd like to keep my warranty etc.
 
Your warranty remains intact unless BMW can prove that a component failure was caused as a direct result of a modification that you've made, you don't even need to get your car serviced at a BMW dealership to keep the warranty but again the same rule applies. If you have a component failure and BMW can prove it was caused by poor servicing they won't replace it. The CDV is designed to give a smoother gear change by slowly applying clutch pressure when you release the pedal, it's not there to protect the drive train so I don't think you'll have any warranty problems by either modifying or binning it. Think of it as throwing away the ashtray because you don't have a need for it!
 
Curtis

I know what you are saying, but I don't think the dealer would agree that easily.

I'm sure they would insist it's there for a reason.

Removing the ashtray has no potentail knock on effect except my chewing gum rappers would be all over the floor.
 
Suit yourself but this information came straight from the service manager at my BMW franchise. He was laughing about how many people are "thankfully" unaware of it ( particularly the servicing part ).
Look at my Alpina for example, I don't even have a Z4 axle in the back of it anymore but I still got gearbox mountings and handbrake cables replaced under warranty when they wore out.
My 330 has H&R springs and anti roll bars but I got a leaking shock absorber replaced under warranty.
The CDV is there for a reason, to give you a smoother gear change, that's it. It's quite a recent introduction from BMW. The same drive train has survived without one up till now. It's only there because they thought it would a be nice thing to have, just like an ashtray to stub out your smokes.
 
Curtis
But the CDV makes the gear changes "un-smooth". What gives?

The modified CDV valves are not drilled out. The internal mechanism has been 'removed'. Drilling might leave metal shavings according to Zeckhausen....
 
Curtis said:
The CDV is there for a reason, to give you a smoother gear change, that's it. It's quite a recent introduction from BMW. The same drive train has survived without one up till now. It's only there because they thought it would a be nice thing to have, just like an ashtray to stub out your smokes.
Click to expand...

CDV is there to prevent drive-train shock caused by people who don't know how to drive a stick properly, not to give a smoother change (it does quite the opposite). :) The whole reason the CDV is there is to prolong the life of the drive-train itself at the expense of the clutch's life. BMW does it basically to cover their own ass. Drive-trains are covered by the warranties - clutches are not (unless you find a friendly dealer that's willing to give you a one-time goodwell replacement of course).
 
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