Anyone regret getting the CDV Mod done? - BMW 3-Series (E90 E92) Forum

trey100 · 09-12-2007, 09:53 PM

I've seen alot of positive posts about the cdv mod, but in some cases people have posted that they did not notice any difference. Anyone here regret getting it done because the shift action got worse rather than better?

mmm def · 09-13-2007, 11:09 AM

Not me, i'd do it again in a second.

billspreston · 09-13-2007, 11:33 AM

Just got it done and I like it. Feels more natural.

slalomfever · 09-13-2007, 11:48 AM

no regrets here...

Park828 · 09-13-2007, 12:50 PM

best mod so far

Robmaster · 09-13-2007, 01:16 PM

wtf is a CDV mod???

trey100 · 09-13-2007, 01:18 PM

Glad to hear. I pick up my car today so I'll try it out for a few days stock and then decide. I already have the modified cdv at home. Should I wait until break-in is over?

nevets1 · 09-13-2007, 10:15 PM

Best mod I've done so far. It will give you a much more natural clutch feel.

Nyulak · 09-13-2007, 10:38 PM

Get rid of the damned CDV!!! Don't ask silly questions.

The CDV is the Clutch Delay Valve. It is there to minimize stress to the drivetrain by increasing the engagement time of the clutch. Pretty much prevents you from popping the clutch. It's mainly to keep warranty costs down for BMW. If you are a capable clutchmen (new word), then the CDV is an evil thing that most be exorcised with all due haste. If you can't drive a stick, you suck... just kidding, but really, you suck.

I got mine removed when I had the LSD installed and I enjoy having the thing gone from my machine.

spacedogg · 09-13-2007, 10:42 PM

I totally regret taking my CDV out. Now my car shifts are smooth and crisp. I totally miss my jerky shifts and making my passengers feel nauseous.

jtecnik · 09-13-2007, 11:16 PM

Andrew@ET · 09-13-2007, 11:25 PM

^^^^ is that your car in the picture??? if so im in love~

itsbrokeagain · 09-13-2007, 11:31 PM

I will be getting mine done soon....I got 12k on my car and im getting sick of driving like this..just lazy to buy it lol

gum5h03 · 09-13-2007, 11:36 PM

Was worth every ounce of brake fluid I got in my eyes, on my clothes, in my mouth, etc etc etc. Shifting felt crisper immediately and now I can really row though the gears without bucking the car.

Robmaster · 09-14-2007, 12:58 AM

and where is this CDV fitted???

wuufer001 · 09-14-2007, 02:18 AM

big job to get it done?
btw is it just for 335 or any manual trans?

ScheerSpeed · 09-14-2007, 10:10 AM

Quote:

Originally Posted by wuufer001

big job to get it done?
btw is it just for 335 or any manual trans?

all MT E9x

tintivilus · 09-14-2007, 12:14 PM

Quote:

Originally Posted by Nyulak

It is there to minimize stress to the drivetrain by increasing the engagement/disengagement time of the clutch.

Minor quibble: it only increases the engagement time, not the disengagement time.

I found it particularly weird feeling when engine braking in the mountains.

trey100 · 09-14-2007, 12:22 PM

Drove the car yesterday and today and didn't seem overly-jerky. I'll have it done anyway, but do I need to wait until after break-in?

HyperM3 · 09-14-2007, 12:26 PM

Quote:

Originally Posted by ScheerSpeed

all MT E9x

Actually all BMW manuals in general.

Mr. 5 · 09-14-2007, 01:00 PM

Quote:

Originally Posted by trey100

I've seen alot of positive posts about the cdv mod, but in some cases people have posted that they did not notice any difference. Anyone here regret getting it done because the shift action got worse rather than better?

The only reason why you would regret doing this mod is if you really didn't know how to dive a manual.
The CDV mod is seriously one of the best and easiest things you can do to a manual trans.

Park828 · 09-14-2007, 01:48 PM

yup i only regretted waiting so damn long to do it

09-12-2007, 09:53 PM	#1
trey100 Private First Class Drives: 2007 E90 335i Join Date: Jul 2007 Location: New York Posts: 113 iTrader: (0)	Anyone regret getting the CDV Mod done? I've seen alot of positive posts about the cdv mod, but in some cases people have posted that they did not notice any difference. Anyone here regret getting it done because the shift action got worse rather than better?
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09-13-2007, 12:50 PM	#5
Park828 Lieutenant Drives: f10 535i msprt e60 550i msprt Join Date: Feb 2007 Location: San Jose CA Posts: 542 iTrader: (2)	best mod so far __________________ 2011 F10 535i 07 e90 AW Terra Manual, Brushed Aluminium, ZCW, ZPP, ZSP, comfort access, power rear shades, manual side windows shades, PDC, NAV, HD radio, Sirius, 6FL Ipod, 6UH RTTI 97 e36 techno v M3 coupe manual

09-13-2007, 10:15 PM	#8
nevets1 Captain Drives: 2006 330i Jet Blac Join Date: Nov 2005 Location: Chicago Posts: 674 iTrader: (0)	NO REGRETS Best mod I've done so far. It will give you a much more natural clutch feel.

09-13-2007, 10:38 PM	#9
Nyulak Captain Drives: 2009 BMW 535xi Join Date: Feb 2007 Location: SheffVill, OH Posts: 924 iTrader: (4) Garage List 2009 BMW 535xi [0.00]	Get rid of the damned CDV!!! Don't ask silly questions. The CDV is the Clutch Delay Valve. It is there to minimize stress to the drivetrain by increasing the engagement time of the clutch. Pretty much prevents you from popping the clutch. It's mainly to keep warranty costs down for BMW. If you are a capable clutchmen (new word), then the CDV is an evil thing that most be exorcised with all due haste. If you can't drive a stick, you suck... just kidding, but really, you suck. I got mine removed when I had the LSD installed and I enjoy having the thing gone from my machine. Last edited by Nyulak; 09-14-2007 at 07:02 PM. Reason: Edited per Tintivilus' suggestion.

09-13-2007, 11:16 PM	#11
jtecnik Second Lieutenant Drives: Wide M3 Join Date: Jul 2007 Location: orange county, ca Posts: 263 iTrader: (0)	__________________

09-13-2007, 11:09 AM	#2
mmm def Colonel Drives: 07 Accord 6-6 Join Date: Dec 2006 Location: NJ Posts: 2,535 iTrader: (0)	Not me, i'd do it again in a second.

09-13-2007, 11:33 AM	#3
billspreston damn you mod bug Drives: F30 335i M-Sport Join Date: Jul 2005 Location: CA Posts: 2,101 iTrader: (12)	Just got it done and I like it. Feels more natural.

09-13-2007, 11:48 AM	#4
slalomfever Captain Drives: X5 and E93 ///M3 Join Date: Mar 2007 Location: Long Island Posts: 834 iTrader: (3)	no regrets here...

09-13-2007, 01:16 PM	#6
Robmaster Colonel Drives: 2009 MR E92 M3, E39 523i (DD) Join Date: Apr 2007 Location: Switzerland Posts: 2,672 iTrader: (3)	wtf is a CDV mod???

09-13-2007, 01:18 PM	#7
trey100 Private First Class Drives: 2007 E90 335i Join Date: Jul 2007 Location: New York Posts: 113 iTrader: (0)	Glad to hear. I pick up my car today so I'll try it out for a few days stock and then decide. I already have the modified cdv at home. Should I wait until break-in is over?

09-13-2007, 10:42 PM	#10
spacedogg Colonel Drives: Debadged Join Date: Aug 2006 Location: Vancouver, BC Posts: 2,819 iTrader: (0)	I totally regret taking my CDV out. Now my car shifts are smooth and crisp. I totally miss my jerky shifts and making my passengers feel nauseous.

09-13-2007, 11:25 PM	#12
Andrew@ET Brigadier General Drives: n55 135I AW coral red ! Join Date: May 2007 Location: miami Posts: 4,039 iTrader: (9)	^^^^ is that your car in the picture??? if so im in love~

09-13-2007, 11:31 PM	#13
itsbrokeagain Drives: E28 535, 1996 Dodge Ram Diesel Join Date: Mar 2007 Location: Valley Stream, NY Posts: 15,742 iTrader: (7)	I will be getting mine done soon....I got 12k on my car and im getting sick of driving like this..just lazy to buy it lol __________________ AUTOCouture Motoring: Handling reflector installs to turbo upgrades and superchargers, and everything in between 15-01 Pollitt Drive, Fairlawn NJ 201-666-3500 <-Official Vehicle Transport for AUTOCouture

09-13-2007, 11:36 PM	#14
gum5h03 Galactic Emperor Drives: Fast Join Date: Mar 2007 Location: WA Posts: 801 iTrader: (3)	Was worth every ounce of brake fluid I got in my eyes, on my clothes, in my mouth, etc etc etc. Shifting felt crisper immediately and now I can really row though the gears without bucking the car.

09-14-2007, 12:58 AM	#15
Robmaster Colonel Drives: 2009 MR E92 M3, E39 523i (DD) Join Date: Apr 2007 Location: Switzerland Posts: 2,672 iTrader: (3)	and where is this CDV fitted???

09-14-2007, 02:18 AM	#16
wuufer001 Colonel Drives: 2006 E90 M/T Join Date: Mar 2006 Location: DFW, TX//Taiwan//South Africa Posts: 2,302 iTrader: (5) Garage List 2006 325i [4.67]	big job to get it done? btw is it just for 335 or any manual trans? __________________

09-14-2007, 12:22 PM	#19
trey100 Private First Class Drives: 2007 E90 335i Join Date: Jul 2007 Location: New York Posts: 113 iTrader: (0)	Drove the car yesterday and today and didn't seem overly-jerky. I'll have it done anyway, but do I need to wait until after break-in?

09-14-2007, 01:48 PM	#22
Park828 Lieutenant Drives: f10 535i msprt e60 550i msprt Join Date: Feb 2007 Location: San Jose CA Posts: 542 iTrader: (2)	yup i only regretted waiting so damn long to do it __________________ 2011 F10 535i 07 e90 AW Terra Manual, Brushed Aluminium, ZCW, ZPP, ZSP, comfort access, power rear shades, manual side windows shades, PDC, NAV, HD radio, Sirius, 6FL Ipod, 6UH RTTI 97 e36 techno v M3 coupe manual

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