CDV Modified done...WOW what a difference! - BMW 3-Series (E90 E92) Forum

Cloud9 · 09-17-2005, 07:02 PM

The BEST $100 I've spent!! I love how my car feels now. It now shifts smooth and I don't drive like an a$$ anymore.

It's a hugh improvement. Install cost $66 and CDV from Zeckhausen $37.

tim916 · 09-17-2005, 07:47 PM

Where did you get the installation done?

LEDZEP · 09-17-2005, 07:50 PM

I'm not sure what CDV is, but if it costs $100 and makes people stop driving like an ass, I'll buy one for everyone I see!!

Cloud9 · 09-17-2005, 07:59 PM

Quote:

Originally Posted by tim916

Where did you get the installation done?

A local garage in my town. He works on a lot of VW, Audi and BMWs. An honest guy that does great work for a reasonable price. He swapped out my exhaust on my 540 for $80.

Cloud9 · 09-17-2005, 08:02 PM

Quote:

Originally Posted by LEDZEP

I'm not sure what CDV is, but if it costs $100 and makes people stop driving like an ass, I'll buy one for everyone I see!!

LOL...the CDV is only in a manual shift car.

lxapilot118 · 09-17-2005, 08:17 PM

What is CDV?

coco · 09-17-2005, 08:42 PM

Do a search for "CDV" and you'll find plenty of info. It stands for clutch delay valve.

ZenDriver · 09-17-2005, 08:44 PM

http://www.zeckhausen.com/CDV.htm

Jason · 09-17-2005, 08:51 PM

Here's a prior thread, discussing this mod extensively

http://www.e90post.com/forums/showthread.php?t=530

David328M-Sport · 09-18-2005, 02:48 AM

Althogh I have the wonderful Steptronic now, my e46 also had the CDV and shifting from 1 to 2 was always a hit & miss affair. The jerkiness from the 1 to 2 change was annoying. Sometimes I got it right, other times....just ask Cloud9, which he must be on now.

Good one!!! Enjoy proper & easy shifting.

Mark · 09-18-2005, 09:55 AM

oh dreaded CDV, how I hate you ! When I get a bad 1-2 shift (probably 80% of the time) I would actually try xplaining this device to people.. but they usually roll their eyes and still think you suck

I think CDV removal should be a mandatory option for all BMWs, and I'm still confused as to why BMW put it in.. their explanation only half makes sense to me, but I guess it must help save the clutch life a little bit with that delay engineered into the drivetrain.. who knows

romeo26 · 09-19-2005, 01:36 AM

why cant they just forget about the cvd at the factory?

longtran · 09-19-2005, 01:52 AM

ok where in los angeles can i get a cdv??? anyone in los angeles had one done??

Mauricio · 09-19-2005, 10:17 AM

Is it a permanent mod or can the CDV be reinstalled in case I later find out it's harmful to my car. It seems like a simple swap, but can it be more complicated than this.

Is this something that most people on this forum have done or is it still experimental?

fredtoo · 09-19-2005, 11:06 AM

Quote:

Originally Posted by MarkE90M3

I think CDV removal should be a mandatory option for all BMWs, and I'm still confused as to why BMW put it in.. their explanation only half makes sense to me, but I guess it must help save the clutch life a little bit with that delay engineered into the drivetrain.. who knows

The CDV prevents shock to the drive train when an abusive owner revs the engine, and "pops" the clutch.

If you snap a half shaft, or break the trans with the cdv in place, do not expect the repair to be covered under warrenty.

Jakobzara · 09-19-2005, 11:11 AM

BMW, puts the CDV calve on to protect the drivetrain, wich is a warranty item. This does put extra ware on the clutch, but that is a non warratee item.

The CDV valve, only takes affect if you are speed shifting or doing hole shots. IN everyday driving, you will probably not notice much of a difference.

Most BMW service station (non-dealer) will be able to swap it for under $100. The e90, is not any more complicated than other BMW, but take a look under your car. It is like a formula 1 car, there are underbody plastic body panels every where.

Socom · 09-19-2005, 11:21 AM

Quote:

Originally Posted by Jakobzara

BMW, puts the CDV calve on to protect the drivetrain, wich is a warranty item. This does put extra ware on the clutch, but that is a non warratee item.

The CDV valve, only takes affect if you are speed shifting or doing hole shots. IN everyday driving, you will probably not notice much of a difference.

Most BMW service station (non-dealer) will be able to swap it for under $100. The e90, is not any more complicated than other BMW, but take a look under your car. It is like a formula 1 car, there are underbody plastic body panels every where.

Yep...he's right on..

The only way a dealer would know the CDV was modified it to take it off and look inside. The modified CDV's are OEM CDV's but without the inner constriction (ie. small hole which slows the passage of fluid).

$100 is cheap since the tech has to bleed the system.

petesamprs · 09-19-2005, 11:33 AM

Anyone else have this done yet? Need more feedback.

hermanh · 09-19-2005, 02:21 PM

Is this CDV only installed in American versions or is it a worldwide thing. Warrenty is only two years in Europe, (was only one year a year or two ago)and only mechanical failures are covered.

(So 2 years less warrenty and nearly 30 % over the American invoice price.....

. Sorry, just needed to get that out off my system...

)

beemerfan · 09-19-2005, 03:30 PM

Hi!I would like to know if other cars also use a CDV

longtran · 09-29-2005, 01:38 PM

i found out that you can just take the cdv out. you dont need to replace it with a modified one.

Mark · 09-29-2005, 05:49 PM

Quote:

Originally Posted by longtran

i found out that you can just take the cdv out. you dont need to replace it with a modified one.

putting in the modified one makes the mod completly invisible incase someone ever decides to look down there..

09-17-2005, 07:02 PM	#1
Cloud9 Second Lieutenant Drives: Fast! Join Date: Jun 2005 Location: New England Posts: 214 iTrader: (2)	CDV Modified done...WOW what a difference! The BEST $100 I've spent!! I love how my car feels now. It now shifts smooth and I don't drive like an a$$ anymore. It's a hugh improvement. Install cost $66 and CDV from Zeckhausen $37. __________________ SOLD my E90!! 10/2006 Alpine White & Black / 330i 6SP / Sport / Premium / Heated Seats / Aluminum Trim / CDV Modified My Exs: '03 540, '01 330ci and '00 328i
	Tweet

09-17-2005, 07:47 PM	#2
tim916 Private First Class Drives: E90 325i Join Date: Apr 2005 Location: RI Posts: 114 iTrader: (0) Garage List 2006 325i [0.00]	Where did you get the installation done? __________________ 2006 325i - Jet Black / Black 'ette / Alum / SP / Nav / Logic 7 / Sirius / Xenon / Heated Seats / 18" BBS RC

09-17-2005, 07:50 PM	#3
LEDZEP Lieutenant General Drives: 2009 E70 & 2011 F25 Join Date: Jun 2005 Location: Area 51 Posts: 12,277 iTrader: (0) Garage List 2011 X3 35i M Sport [3.93] 2009 X5 M Sport [0.00] 2007 328xi E90 [0.00] 2006 325xiT E91 [0.00]	I'm not sure what CDV is, but if it costs $100 and makes people stop driving like an ass, I'll buy one for everyone I see!! __________________ I think it is bad luck to be superstitious

09-17-2005, 08:17 PM	#6
lxapilot118 Second Lieutenant Drives: 330i + SC Mustang Join Date: Aug 2005 Location: MS Posts: 219 iTrader: (0)	What is CDV? __________________ TiAg E90 330i 6-Speed, Silver w/gray/burl, sports package, premium package, nav, heated seats, sunshades, comfort access, satellite radio, PDC, Mattig Eyelids:rocks:

09-18-2005, 02:48 AM	#10
David328M-Sport Brigadier General Drives: F30 M-Sport 328i Estoril Blue Join Date: Jun 2005 Location: Melbourne Australia Posts: 3,172 iTrader: (0)	Althogh I have the wonderful Steptronic now, my e46 also had the CDV and shifting from 1 to 2 was always a hit & miss affair. The jerkiness from the 1 to 2 change was annoying. Sometimes I got it right, other times....just ask Cloud9, which he must be on now. Good one!!! Enjoy proper & easy shifting. __________________ 328i M-Sport, Estoril Blue, Carbon XP 35 Tint, front heated seats, black Dakota, Sports Suspension, Anthracite Headliner, HUD, Pro Nav, Sunroof, hk 600w, Bi-Xenon, 19" 403M wheels, Reversing Camera, DAB+, Xenon, BT Ext Connect.

09-17-2005, 08:42 PM	#7
coco Second Lieutenant Drives: Bimmmer Join Date: Jun 2005 Location: Texas Posts: 286 iTrader: (0)	Do a search for "CDV" and you'll find plenty of info. It stands for clutch delay valve.

09-17-2005, 08:44 PM	#8
ZenDriver Do Not Taunt Zen Driver. Drives: 325i w/ MT, ZSP in Graphite Join Date: Aug 2005 Location: Portland, OR Posts: 466 iTrader: (0)	http://www.zeckhausen.com/CDV.htm

09-17-2005, 08:51 PM	#9
Jason Administrator Drives: E90 M3 Join Date: Mar 2005 Location: IoT Posts: 13,904 iTrader: (0)	Here's a prior thread, discussing this mod extensively http://www.e90post.com/forums/showthread.php?t=530

09-18-2005, 09:55 AM	#11
Mark Administrator Drives: 1M Join Date: Mar 2005 Location: NY / Philly / Boston Posts: 3,857 iTrader: (1) Garage List 2011 BMW 1 Series M ... [4.04]	oh dreaded CDV, how I hate you ! When I get a bad 1-2 shift (probably 80% of the time) I would actually try xplaining this device to people.. but they usually roll their eyes and still think you suck I think CDV removal should be a mandatory option for all BMWs, and I'm still confused as to why BMW put it in.. their explanation only half makes sense to me, but I guess it must help save the clutch life a little bit with that delay engineered into the drivetrain.. who knows __________________ The new beast. BMW M5.

09-19-2005, 01:36 AM	#12
romeo26 First Lieutenant Drives: e30 325 (no lette) Join Date: May 2005 Location: anaheim, cali Posts: 348 iTrader: (0)	why cant they just forget about the cvd at the factory?

09-19-2005, 01:52 AM	#13
longtran Moderator Drives: E90 M3 Join Date: Jul 2005 Location: CA Posts: 16,606 iTrader: (105) Garage List 2006 325i [0.00]	ok where in los angeles can i get a cdv??? anyone in los angeles had one done?? __________________

09-19-2005, 10:17 AM	#14
Mauricio Private First Class Drives: 2006 330i, MT, SP Join Date: Jun 2005 Location: Miami, FL Posts: 107 iTrader: (0) Garage List 2006 330i [0.00]	Is it a permanent mod or can the CDV be reinstalled in case I later find out it's harmful to my car. It seems like a simple swap, but can it be more complicated than this. Is this something that most people on this forum have done or is it still experimental?

09-19-2005, 11:11 AM	#16
Jakobzara Enlisted Member Drives: BMW 2006 330i Join Date: Jul 2005 Location: Philadelphia, PA Posts: 31 iTrader: (0)	BMW, puts the CDV calve on to protect the drivetrain, wich is a warranty item. This does put extra ware on the clutch, but that is a non warratee item. The CDV valve, only takes affect if you are speed shifting or doing hole shots. IN everyday driving, you will probably not notice much of a difference. Most BMW service station (non-dealer) will be able to swap it for under $100. The e90, is not any more complicated than other BMW, but take a look under your car. It is like a formula 1 car, there are underbody plastic body panels every where.

09-19-2005, 11:33 AM	#18
petesamprs Lieutenant Drives: . Join Date: Aug 2005 Location: northeast Posts: 510 iTrader: (0)	Anyone else have this done yet? Need more feedback.

09-19-2005, 02:21 PM	#19
hermanh New Member Drives: 330i MT Join Date: Mar 2005 Location: Belgium, Europe Posts: 27 iTrader: (0)	Is this CDV only installed in American versions or is it a worldwide thing. Warrenty is only two years in Europe, (was only one year a year or two ago)and only mechanical failures are covered. (So 2 years less warrenty and nearly 30 % over the American invoice price...... Sorry, just needed to get that out off my system...)

09-19-2005, 03:30 PM	#20
beemerfan Registered Drives: e46 320i Join Date: Jun 2005 Location: pretoria south africa Posts: 1 iTrader: (0)	Hi!I would like to know if other cars also use a CDV

09-29-2005, 01:38 PM	#21
longtran Moderator Drives: E90 M3 Join Date: Jul 2005 Location: CA Posts: 16,606 iTrader: (105) Garage List 2006 325i [0.00]	i found out that you can just take the cdv out. you dont need to replace it with a modified one. __________________

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