Hello there - just a few things about the CDV issue which I'd be really grateful for opinions about.
I'm running a Z4M coupe with the standard CDV still in place. Having read about the benefits of removing/modifying it, and from my own experience of the standard CDV, I'm pretty keen to do something about it.
Spoke with a nearby independent BMW specialist the other day about having something done. He said he could do it but advised against it. His reason was that the Z4 clutch does not have springs in the plates and the CDV was there to prevent damage to it if the driver's foot slipped off the clutch pedal (presumably this must mean that the springs in the clutch plates of other cars prevent damage if feet happen to slip off) :? . Does this seem right? Can't say I've ever had a foot slip off a pedal, so I think I'd be prepared to take the risk.
The other thing is whether to put in a modified CDV (more likely modify the existing one and put it back) or just remove it completely and join the two ends of the hoses together. It seems to me that even a modified CDV would restrict the flow of clutch fluid more than having nothing there at all, so I was wondering if there would be a more noticeable difference by removing it altogether.
Then there's the warranty issue. I still have just over 2 years of the original warranty left on the car. I guess removing the CVD altogether would be pretty obvious during a check under the car and would give BMW a reason to reject future drivetrain related warranty claims. Has anyone thrown caution to the winds and removed the CDV altogether while their car was still well within the warranty period?
Many thanks for any views.
I'm running a Z4M coupe with the standard CDV still in place. Having read about the benefits of removing/modifying it, and from my own experience of the standard CDV, I'm pretty keen to do something about it.
Spoke with a nearby independent BMW specialist the other day about having something done. He said he could do it but advised against it. His reason was that the Z4 clutch does not have springs in the plates and the CDV was there to prevent damage to it if the driver's foot slipped off the clutch pedal (presumably this must mean that the springs in the clutch plates of other cars prevent damage if feet happen to slip off) :? . Does this seem right? Can't say I've ever had a foot slip off a pedal, so I think I'd be prepared to take the risk.
The other thing is whether to put in a modified CDV (more likely modify the existing one and put it back) or just remove it completely and join the two ends of the hoses together. It seems to me that even a modified CDV would restrict the flow of clutch fluid more than having nothing there at all, so I was wondering if there would be a more noticeable difference by removing it altogether.
Then there's the warranty issue. I still have just over 2 years of the original warranty left on the car. I guess removing the CVD altogether would be pretty obvious during a check under the car and would give BMW a reason to reject future drivetrain related warranty claims. Has anyone thrown caution to the winds and removed the CDV altogether while their car was still well within the warranty period?
Many thanks for any views.
Liverpool
