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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cdv delete



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      10-26-2012, 12:04 PM   #1
g335
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Cdv delete

Best mod ever! I re fell in love with my car again.
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      10-26-2012, 01:08 PM   #2
blackshan
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I just got mines in and should be putting it soon. Hope I feel the same! So cheap I said why not! Lol!
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      10-26-2012, 01:37 PM   #3
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Quote:
Originally Posted by g335
Best mod ever! I re fell in love with my car again.
What's a cdv ?
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      10-26-2012, 01:38 PM   #4
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And why does it do to your car when you delete it ?
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      10-26-2012, 02:05 PM   #5
335iaz
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Quote:
Originally Posted by ilirduka335xi View Post
What's a cdv ?
Clutch Delay Valve .. it restricts the amount of fluid ... which .. I have had my modified CDV valve sitting in my garage for over a year now ... not sure I want to switch it .. lol.
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      10-26-2012, 07:42 PM   #6
g335
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it's a subtle diff but I notice it and enjoy my car soo much more. When I drive n shift aggressively, I'm now rewarded with bliss rather than smacked on the hand with a jerky shift/clutch engagement.

Save those "nannies" for those who don't know how to properly use a third pedal... This is a must do IMO
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      10-26-2012, 08:37 PM   #7
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It restricts the amount of clutch fluid, resulting in a bit of lag in clutch engagement. Removing it or replacing it with a modified one gives you crisper clutch engagement. It's there to "protect" the clutch but can cause a bit of premature wear from the clutch slipping a bit during hard/fast shifts. Removing/modifying it also makes rev-matching/heel-toe'ing easier and more precise.
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      10-28-2012, 12:16 PM   #8
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does this do anything for daily driving? i used to shift low (2000-2500k) for some stupid reason lol but after shifting higher up at 3000-3500, i can get smooth shifts more often (not all the time still). i drive modestly otherwise.

my main battle with a 6MT is getting the going without the clutch "chattering". i either have to very slowly let the clutch out or rev to 800-1000rpm then let it out but that burns the clutch.
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      10-28-2012, 08:24 PM   #9
Eric335
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does this do anything for daily driving? i used to shift low (2000-2500k) for some stupid reason lol but after shifting higher up at 3000-3500, i can get smooth shifts more often (not all the time still). i drive modestly otherwise.

my main battle with a 6MT is getting the going without the clutch "chattering". i either have to very slowly let the clutch out or rev to 800-1000rpm then let it out but that burns the clutch.
I wouldnt say 800-1000 RPM burns the clutch. Thats about where i let it out, but maybe thats why i need a new clutch
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      10-28-2012, 10:43 PM   #10
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Youll never get rid of the chatter cause its the dual mass flywheel thats chattering. Its doing what its designed to unfortunately and the chatter is a by product.
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      10-29-2012, 01:24 AM   #11
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would you say it's normal then? or is the chattering a result of an incorrect clutch engagement?
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      10-29-2012, 04:06 AM   #12
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Quote:
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Best mod ever! I re fell in love with my car again.
hey when you install this, do you have to bleed the line after? how hard is this to DIY?
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      10-29-2012, 06:35 AM   #13
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hey when you install this, do you have to bleed the line after? how hard is this to DIY?
http://www.e90post.com/forums/showthread.php?t=29828
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