CDV & Short Shift Kit

eunosracr · 12-23-2007, 10:29 PM

Since the 135i uses the same motor and tranny as the 335i would it make sense to assume that the CDV valve and short shift kit for the 335i would fit the 135i? Thoughts?

Dave · 12-24-2007, 08:00 AM

prob not..

BMWeber · 12-24-2007, 08:37 AM

not sure about the short shift kit. but I guarantee CDV will be the same. CDV is a very basic part and I doubt BMW will be using different threads in the 135i.

Rephlex · 12-24-2007, 08:58 AM

The B&M short shifter for the E90 fits the E87 130i if that is any help.

eunosracr · 12-24-2007, 10:18 AM

Interesting. Must keep an eye on this.

Oregon · 12-24-2007, 11:09 AM

Can the CDV be bypassed without compromising the warranty?

eunosracr · 12-24-2007, 12:42 PM

The trick is to install a modified CDV valve. Don't remove the CDV valve.

Oregon · 12-24-2007, 01:27 PM

Can the service center detect the modified valve?

eunosracr · 12-24-2007, 02:14 PM

Only if they take the modified valve and cut it in half. Highly unlikely I would say.

Oregon · 12-24-2007, 02:36 PM

As I understand it, running a modified valve will provide quicker clutch response. Is it a relatively easy change-out. A stock part could be installed for any visit to the dealer.

Rephlex · 12-24-2007, 02:54 PM

This CDV valve business is news to me. A quick Google shows that Zeckhausen Racing's solution seems to be popular.

As has been said already, the E90 part is certain to be the same and if you buy two of these at your local dealer and send them to Zeckhausen, they keep one for stock and send the other back with the internals removed. As it will look identical to the OEM part I for one would never be concerned about what the dealer might think.

Seems a no-brainer - does anyone have personal experience of this modification?

larryn · 12-24-2007, 02:56 PM

That's true. I would also recommend re-installing the CDV should to be bringing your car in for any drivetrain warranty issues too. :wink: No use giving them a reason to deny coverage.

larryn · 12-24-2007, 03:01 PM

Quote:

Originally Posted by Rephlex

Seems a no-brainer - does anyone have personal experience of this modification?

Dave has been making those modded CDVs for quite some time.

Anyway, here's an entire thread of people giving their impressions of either a modified or removed CDV. It's universally accepted as a low cost, well worthwhile mod. :thumbup:

eunosracr · 12-24-2007, 03:08 PM

This is a no-brainer for anyone who has been driving a stick shift car for years. When i first drove a 3 series with the CDV installed I simply could nto shift smoothyl. After installing the modified CDV it was like night and day. I had gotten my skills back. Definitely a no-brainer for the price.

Oregon · 12-24-2007, 03:11 PM

Where is the CDV located? Is it difficult to access?

Rephlex · 12-24-2007, 03:18 PM

Quote:

Originally Posted by Surname

Where is the CDV located? Is it difficult to access?

See HERE

Oregon · 12-24-2007, 04:32 PM

Thank you very much. Great forum.

Rephlex · 12-24-2007, 04:42 PM

Quote:

Originally Posted by Surname

Thank you very much. Great forum.

Indeed. Thanks to the others for the information and feedback.

I need to do some research locally as Zeckhausen do not list a part in stock for right hand drive 330i/335i.

EDIT: Looking on RealOEM it seems my car should have the same part number Lock Valve 21 52 6 764 872 - retail $7.37

12-23-2007, 10:29 PM	#1
eunosracr Colonel 157 Rep 2,231 Posts Drives: a car Join Date: Oct 2007 Location: here iTrader: (4)	CDV & Short Shift Kit Since the 135i uses the same motor and tranny as the 335i would it make sense to assume that the CDV valve and short shift kit for the 335i would fit the 135i? Thoughts?
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12-24-2007, 08:00 AM	#2
Dave formerly izzo/comeback 287 Rep 3,382 Posts Drives: 2016 RC 350 F Sport Join Date: Dec 2007 Location: NJ iTrader: (3) Garage List 2008 135i [6.80]	prob not.. __________________ BMW CCA # 418268
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12-24-2007, 08:37 AM	#3
BMWeber Major 36 Rep 1,329 Posts Drives: 08 135i Join Date: Sep 2007 Location: Amesbury, MA iTrader: (5)	not sure about the short shift kit. but I guarantee CDV will be the same. CDV is a very basic part and I doubt BMW will be using different threads in the 135i.
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12-24-2007, 08:58 AM	#4
Rephlex Private First Class 3 Rep 119 Posts Drives: Join Date: Sep 2007 iTrader: (0)	The B&M short shifter for the E90 fits the E87 130i if that is any help. __________________ My 130i M
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12-24-2007, 10:18 AM	#5
eunosracr Colonel 157 Rep 2,231 Posts Drives: a car Join Date: Oct 2007 Location: here iTrader: (4)	Interesting. Must keep an eye on this.
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12-24-2007, 11:09 AM	#6
Oregon NRA Life Member, BMW CCA 30 year member 181 Rep 2,614 Posts Drives: 04' M3 Join Date: Aug 2007 Location: Oregon iTrader: (1) Garage List 1971 2002 [0.00] 2004 M3 [0.00] 2008 135i [0.00]	Can the CDV be bypassed without compromising the warranty? __________________ Resigned 1ADDICTS Moderator “To disarm the people is the best and most effective way to enslave them.” – George Mason
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12-24-2007, 12:42 PM	#7
eunosracr Colonel 157 Rep 2,231 Posts Drives: a car Join Date: Oct 2007 Location: here iTrader: (4)	The trick is to install a modified CDV valve. Don't remove the CDV valve.
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12-24-2007, 01:27 PM	#8
Oregon NRA Life Member, BMW CCA 30 year member 181 Rep 2,614 Posts Drives: 04' M3 Join Date: Aug 2007 Location: Oregon iTrader: (1) Garage List 1971 2002 [0.00] 2004 M3 [0.00] 2008 135i [0.00]	Can the service center detect the modified valve? __________________ Resigned 1ADDICTS Moderator “To disarm the people is the best and most effective way to enslave them.” – George Mason
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12-24-2007, 02:14 PM	#9
eunosracr Colonel 157 Rep 2,231 Posts Drives: a car Join Date: Oct 2007 Location: here iTrader: (4)	Only if they take the modified valve and cut it in half. Highly unlikely I would say.
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12-24-2007, 02:36 PM	#10
Oregon NRA Life Member, BMW CCA 30 year member 181 Rep 2,614 Posts Drives: 04' M3 Join Date: Aug 2007 Location: Oregon iTrader: (1) Garage List 1971 2002 [0.00] 2004 M3 [0.00] 2008 135i [0.00]	As I understand it, running a modified valve will provide quicker clutch response. Is it a relatively easy change-out. A stock part could be installed for any visit to the dealer. __________________ Resigned 1ADDICTS Moderator “To disarm the people is the best and most effective way to enslave them.” – George Mason
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12-24-2007, 02:54 PM	#11
Rephlex Private First Class 3 Rep 119 Posts Drives: Join Date: Sep 2007 iTrader: (0)	This CDV valve business is news to me. A quick Google shows that Zeckhausen Racing's solution seems to be popular. As has been said already, the E90 part is certain to be the same and if you buy two of these at your local dealer and send them to Zeckhausen, they keep one for stock and send the other back with the internals removed. As it will look identical to the OEM part I for one would never be concerned about what the dealer might think. Seems a no-brainer - does anyone have personal experience of this modification? __________________ My 130i M
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12-24-2007, 02:56 PM	#12
larryn Lieutenant General 2146 Rep 10,176 Posts Drives: '97 332ti, '21 X5 45e, '16 GT4 Join Date: May 2005 Location: Seattle iTrader: (2)	That's true. I would also recommend re-installing the CDV should to be bringing your car in for any drivetrain warranty issues too. :wink: No use giving them a reason to deny coverage.
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12-24-2007, 03:08 PM	#14
eunosracr Colonel 157 Rep 2,231 Posts Drives: a car Join Date: Oct 2007 Location: here iTrader: (4)	This is a no-brainer for anyone who has been driving a stick shift car for years. When i first drove a 3 series with the CDV installed I simply could nto shift smoothyl. After installing the modified CDV it was like night and day. I had gotten my skills back. Definitely a no-brainer for the price.
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12-24-2007, 03:11 PM	#15
Oregon NRA Life Member, BMW CCA 30 year member 181 Rep 2,614 Posts Drives: 04' M3 Join Date: Aug 2007 Location: Oregon iTrader: (1) Garage List 1971 2002 [0.00] 2004 M3 [0.00] 2008 135i [0.00]	Where is the CDV located? Is it difficult to access? __________________ Resigned 1ADDICTS Moderator “To disarm the people is the best and most effective way to enslave them.” – George Mason
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12-24-2007, 04:32 PM	#17
Oregon NRA Life Member, BMW CCA 30 year member 181 Rep 2,614 Posts Drives: 04' M3 Join Date: Aug 2007 Location: Oregon iTrader: (1) Garage List 1971 2002 [0.00] 2004 M3 [0.00] 2008 135i [0.00]	Thank you very much. Great forum. __________________ Resigned 1ADDICTS Moderator “To disarm the people is the best and most effective way to enslave them.” – George Mason
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