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11-29-2007, 03:21 PM | #1 |
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Does the M3 have a CDV?
I was just wondering about this today. I don't know if any of the E9X cars have one, much less the M3..
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12-02-2007, 10:29 AM | #3 |
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any owners know the answer to this?
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12-02-2007, 11:03 AM | #5 | |
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CDV
Quote:
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12-02-2007, 11:22 AM | #6 | |
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Best regards, south |
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12-02-2007, 11:24 AM | #7 | |
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CDV
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Greg Lake Oswego, Oregon, USA 2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 |
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12-02-2007, 11:29 AM | #8 |
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12-02-2007, 02:50 PM | #9 |
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What does a clutch delay valve do?
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12-02-2007, 02:53 PM | #10 |
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Apparently from my understanding it mechanically slows down the release of the clutch (even though the pedal says it's all out), which should make the clutch more indirect, harder to shift without any jerking motions (especially between 1st and 2nd up shift) and finally the "slowed down" engaging action results in extensive wearing on the friction plates(?).
Might be totally wrong here though... Please correct me if this is the case. |
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12-02-2007, 04:51 PM | #11 |
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CDV
Read the link I provided in post #7--complete info.
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12-02-2007, 05:21 PM | #12 |
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Thanks I missed that!
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04-17-2008, 01:07 PM | #13 |
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so there is a cdv on the m3.
Then has anyone replaced theirs with a modified one? I was planning to order one from Riss racing and wondered if it has been done on an m3 yet |
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04-17-2008, 03:43 PM | #14 |
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I don't know about the E9x M3. But the E46 M3 had it in both the manual and SMG transmission versions. Wouldn't be surprised if the 6MT E9x M3s have it. I would be surprised if the DCT versions had it.
BTW, no other manufacturer uses a CDV. So, I doubt you will do any harm by removing it. It just keeps those who are first learning to shift manually from dumping the clutch too hard and breaking something.
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