cdv delete..possble???

q_jonblaze · 05-02-2009, 05:54 PM

so i was wondering if the e90 320d has a clucth delay valve and if anyone has taken theirs off.....

if you have or know anything about this a bit more info would be nicccceee...mayb a diy???

q

Panoz · 05-02-2009, 06:39 PM

dont bother removing CDV ...there is no real difference

Carrera RSR · 05-03-2009, 07:17 AM

Quote:

Originally Posted by q_jonblaze

so i was wondering if the e90 320d has a clucth delay valve and if anyone has taken theirs off.....

if you have or know anything about this a bit more info would be nicccceee...mayb a diy???

q

Anthony at Speed Religion did mine a few months ago as I was fed up with a juddering clutch. There is an improvement but still have a judder but thats now down to me now and not the CDV. I prefer it without the CDV.

foxy-367 · 05-03-2009, 07:24 AM

What does it actually do? Can't say I've ever noticed a judder on mine

Carrera RSR · 05-03-2009, 07:34 AM

Quote:

Originally Posted by foxy-367

What does it actually do? Can't say I've ever noticed a judder on mine

Clutch Delay Valve allows full flow of fluid to depress the clutch but restricts the flow to release the clutch. BMW feel that if you release the clutch too soon you could damage the drive train and would rather screw up the clutch with slippage than spinning the rear wheels.

Anthony modifies/removes this valves internals and replaces the valve housing back on the car. From the outside you would not know a modification has been made. You now have full control of the clutch with your left foot. I think I paid around £35 - 40 for this.

q_jonblaze · 05-03-2009, 07:39 AM

if i could find someone in london to do it.....i definitely would. any ideas???

foxy-367 · 05-03-2009, 08:30 AM

So would it be more noticeable on a spirited start than a gentle potter?

I suppose it makes sense to do it but takes the control away from the driver?

dxb335d · 05-03-2009, 08:34 AM

Ive driven a few manuals with this CDV, man it slows down shift times majorly. CDV= Wank.

Panoz · 05-03-2009, 09:08 AM

I have the CDV deleted...I cant rememeber to have such a big difference since then (maybe its too long ??).

The fact is that i still have this lag/hesitation while upshifting really quick.

G33 · 05-03-2009, 09:38 AM

I agree with Panoz. makes very little difference the CDV modded. need to couple it with a SSK then it will be a winner

Panoz · 05-03-2009, 10:57 AM

I have N54-specific-SSK too,which is very efficient and enjoyble in driving...but upshifting lag is still there.

swanseahammer · 05-03-2009, 06:26 PM

I'm sure I've read that there's a software update coming out shortly for the CDV which will address the juddering issues - can anyone confirm? I notice most on "spirited" starts and steep hill starts - quite a few of them where I live

05-02-2009, 05:54 PM	#1
q_jonblaze Captain 41 Rep 642 Posts Drives: e93 Join Date: Feb 2009 Location: muahahhahahhahahaha iTrader: (3)	cdv delete..possble??? so i was wondering if the e90 320d has a clucth delay valve and if anyone has taken theirs off..... if you have or know anything about this a bit more info would be nicccceee...mayb a diy??? q
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05-02-2009, 06:39 PM	#2
Panoz Lieutenant Colonel 90 Rep 1,575 Posts Drives: E92 Space Grey 335i ,Aero Kit Join Date: Nov 2006 Location: EU iTrader: (0)	dont bother removing CDV ...there is no real difference __________________ Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge Space Grey 335i -> See more pics HERE
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05-03-2009, 07:24 AM	#4
foxy-367 Lieutenant 6 Rep 448 Posts Drives: 320d M-Sport Join Date: Feb 2009 Location: North West iTrader: (0)	What does it actually do? Can't say I've ever noticed a judder on mine __________________ Now - E90 320d M Sport, Le Mans Blue, sun protection glass, Auto lights and wipers, 193M, a big grin Previous - Seat Leon FR, Golf Gttdi (x2), Mk3 Fiesta SI, E30 318i Peugeot 205 Roland Garros, Mk2 Fiesta Ghia (it had a rev counter!!!!)
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05-03-2009, 07:39 AM	#6
q_jonblaze Captain 41 Rep 642 Posts Drives: e93 Join Date: Feb 2009 Location: muahahhahahhahahaha iTrader: (3)	if i could find someone in london to do it.....i definitely would. any ideas???
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05-03-2009, 08:30 AM	#7
foxy-367 Lieutenant 6 Rep 448 Posts Drives: 320d M-Sport Join Date: Feb 2009 Location: North West iTrader: (0)	So would it be more noticeable on a spirited start than a gentle potter? I suppose it makes sense to do it but takes the control away from the driver? __________________ Now - E90 320d M Sport, Le Mans Blue, sun protection glass, Auto lights and wipers, 193M, a big grin Previous - Seat Leon FR, Golf Gttdi (x2), Mk3 Fiesta SI, E30 318i Peugeot 205 Roland Garros, Mk2 Fiesta Ghia (it had a rev counter!!!!)
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05-03-2009, 08:34 AM	#8
dxb335d The Tarmac Terrorist 1047 Rep 29,344 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	Ive driven a few manuals with this CDV, man it slows down shift times majorly. CDV= Wank. __________________ 997.2 GT3
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05-03-2009, 09:08 AM	#9
Panoz Lieutenant Colonel 90 Rep 1,575 Posts Drives: E92 Space Grey 335i ,Aero Kit Join Date: Nov 2006 Location: EU iTrader: (0)	I have the CDV deleted...I cant rememeber to have such a big difference since then (maybe its too long ??). The fact is that i still have this lag/hesitation while upshifting really quick. __________________ Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge Space Grey 335i -> See more pics HERE
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05-03-2009, 09:38 AM	#10
G33 Colonel 104 Rep 2,079 Posts Drives: 335i Join Date: Jun 2007 Location: London iTrader: (0)	I agree with Panoz. makes very little difference the CDV modded. need to couple it with a SSK then it will be a winner
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05-03-2009, 10:57 AM	#11
Panoz Lieutenant Colonel 90 Rep 1,575 Posts Drives: E92 Space Grey 335i ,Aero Kit Join Date: Nov 2006 Location: EU iTrader: (0)	I have N54-specific-SSK too,which is very efficient and enjoyble in driving...but upshifting lag is still there. __________________ Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge Space Grey 335i -> See more pics HERE
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05-03-2009, 06:26 PM	#12
swanseahammer Lieutenant 28 Rep 400 Posts Drives: F30 LCI 330e M Sport Join Date: Jan 2009 Location: Swansea iTrader: (0) Garage List 2008 320d SE [0.00]	I'm sure I've read that there's a software update coming out shortly for the CDV which will address the juddering issues - can anyone confirm? I notice most on "spirited" starts and steep hill starts - quite a few of them where I live
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