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06-07-2017, 10:23 AM | #1 |
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CDV
Has anyone done a CDV delete? I want to know if a modified valve is needed or can the stock valve be removed and the inlet and outlet lines be connected together.
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA. |
06-07-2017, 11:27 AM | #2 |
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I didn't realize E89s had this feature on the 6MT. Why would BMW put this on a car with sporting pretensions?
BTW; why are you just now considering removing it after all these years/miles? |
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06-07-2017, 01:41 PM | #3 |
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BMW puts it on all MT cars (not sure about M's).
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA. |
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06-11-2017, 12:55 PM | #5 |
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Dummy CDV not needed (plenty of line). remove, reconnect and bleed the slave. I put a pass thru CDV in before I knew how mod friendly my dealer was....
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2025 San Remo Green M40i Handschalter
2011 35i BMS High & Low side OCC, Custom tune, CDV delete, Eldor coils, ER Charge Pipe w/Tial BOV, ER Comp. FMIC, K&N drop in,40W LED Halo, LCI side markers, M-Factory LSD, NGK plugs, Racing Dynamics strut brace, Stubby, Windrestrictor, 550i clutch |
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06-12-2017, 02:03 PM | #6 |
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Just do it, tear it off. I did, never regretted. Brings a great deal of predictability, straighness and linearity in clutch behaviour/response.
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Daily:330ix 6MT - PBX, HR SportSprings, Koni Yellows, OZ Ultraleggera 18", PI+PE, CDV off, UUC sways, M235i SportBrake (front), Cquence rotors (rear), 3.64 diffs, LSD rear
Funcar: Z4 3.0i 6MT - HR SportSprings +sways, OZ Ultraleggera 19", 5.00 diff by Drexler, CDV off, Quaife LSD, M235i SportBrake (front), Cquence rotors (rear) |
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10-09-2017, 07:36 PM | #7 |
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I just removed mine a couple of hours ago, reconnected the hose to the slave and bled. Can't believe how smooth 1st to 2nd shift is now! No more boggle head for the wifey.
On a side note, the CDV off my 2013 Z4 was completely plastic except for the orifice hole. Everything on this car is plastic! |
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