Clutch Delay Valve

NuovoTech · 05-13-2005, 11:42 PM

Zeckhausen does not list the 318's...anyone here know if the 318 has the dreaded CDValve or not?

E90Fleet · 05-14-2005, 06:35 AM

Quote:

Originally Posted by NuovoTech

Zeckhausen does not list the 318's...anyone here know if the 318 has the dreaded CDValve or not?

The E46 318i does have it

Its not listed because the USA doesnt get the 318i

NuovoTech · 05-14-2005, 12:05 PM

E90Fleet - So then, are you saying that ALL the E36's in the USA have CDValves...including my 318ti?

E90Fleet · 05-14-2005, 04:43 PM

Quote:

Originally Posted by NuovoTech

E90Fleet - So then, are you saying that ALL the E36's in the USA have CDValves...including my 318ti?

You didnt say E36 or ti

No, the USA E36 318ti doesnt have it

NuovoTech · 05-14-2005, 06:47 PM

Quote:

You didnt say E36 or ti

Sorry, I phrased my original question wrong.

Quote:

No, the USA E36 318ti doesnt have it

Thanx for that info!

coco · 06-13-2005, 09:52 PM

owner of Zeckhausen Racing said this:

It [E90] does appear to have a CDV. The BMW part number is 21-52-6-764-872. Unlike the other CDVs I've seen, this one has a plastic body and simply clicks into place. I ordered a couple of them to see if they could be modified. So far, I haven't figured out how to do it without breaking the valve.

E90 Clutch Delay Valve

E46 Clutch Delay Valve

romeo26 · 06-14-2005, 12:47 AM

may be bmw made the cdv plastic so it will be harder to mod!!!
couldent you just atach the 2 tubes together(more direct) and forget about the valve all together?

E90Fleet · 06-14-2005, 06:33 AM

Quote:

Originally Posted by romeo26

may be bmw made the cdv plastic so it will be harder to mod!!!
couldent you just atach the 2 tubes together(more direct) and forget about the valve all together?

It will void your warranty / Morotplan if you do

coco · 06-22-2005, 09:53 AM

Update on CDV mod from Dave Zeckhausen (owner of Zeckhausen Racing - http://www.zeckhausen.com/):

"The E90 CDV is more restrictive than the traditional metal CDVs. The opening is smaller.

The good news is that I have just perfected a technique for removing the valve mechanism without damaging the plastic body. A few valves had to be sacrificed for the cause, but it works now. I can provide modified E90 CDVs to anyone who wants them.

I only have two now, but I'll be ordering about 30 new valves from Pacific BMW today, so I'll be stocked up in about a week. That's assuming, of course, that there are a large number of E90 CDVs available for purchase. This order may take them by surprise. "

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

E90Fleet · 06-22-2005, 10:09 AM

I think BMW are going to be very suprised with such a big order of CDV

timzerofive · 06-22-2005, 10:55 AM

Any possibility of posting some images with instructions.

YYdoodle · 06-22-2005, 10:58 AM

timzerofive, check out this link, it's got instructions for a 5 series: http://www.zeckhausen.com/CDV.htm

I'm sure there'll be instructions posted for an E90 eventually

CC 330i · 06-22-2005, 11:06 AM

Looks like a pretty simple install. I may have to do this. I haven't found that the clutch is THAT bad, but if the CDV mod gives you better clutch feel, and quicker engagement, then I am all for it.

I HATE working with brake fluid though. That is some pretty caustic stuff! Make sure you clean up all traces of it and minimize your exposure to it.

I converted my old '73 Bronco to disc brakes over a weekend, and put in all new hardlines in the brake system (big job). I swore I would never do any more brake work. I went through 2 quarts of brake fluid bleeding the system!

I guess this qualifies as "clutch" work, but I hate bleeding hydraulic systems!

Jason · 06-22-2005, 11:24 AM

Zeckhausen Racing has their page up for the modified E90 CDV. Looks like you'll be able to order these pretty soon. Modified valves are priced at $35. See the following link:

http://www.zeckhausen.com/BMW/E90.htm

E90Fleet · 06-22-2005, 11:59 AM

People with RHD cars please note they use a DIFFERENT CDV and you cannot use th LHD one

NuovoTech · 06-22-2005, 06:10 PM

If I understand the below link correctly the dreaded CDValve was never installed on E46 coupes(strangely it was on the M3's).

I wonder if this means it may not be on the E92 coupes?

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

E90Fleet · 06-22-2005, 06:23 PM

Quote:

Originally Posted by NuovoTech

If I understand the below link correctly the dreaded CDValve was never installed on E46 coupes(strangely it was on the M3's).

I wonder if this means it may not be on the E92 coupes?

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

No you didnt understand correctly

All normal coupes have them, just some early M3's dont, later ones all have

The E92 will have it since alll new BMW's with manual gearboxes have them

NuovoTech · 06-22-2005, 07:06 PM

Quote:

The E92 will have it since alll new BMW's with manual gearboxes have them...

Got it, Thanx!

ogrady · 06-23-2005, 04:26 PM

Can't wait to do this mod. Any ex-E46 owners here do this mod? Does it make a big difference??

NuovoTech · 06-23-2005, 04:45 PM

Quote:

Any ex-E46 owners here do this mod? Does it make a big difference??

For that matter, any E90 owners that have done it? Would love feedback!

bookman2 · 06-23-2005, 09:14 PM

Quote:

Originally Posted by jwocky

Zeckhausen Racing has their page up for the modified E90 CDV. Looks like you'll be able to order these pretty soon. Modified valves are priced at $35. See the following link:

http://www.zeckhausen.com/BMW/E90.htm

Will the Zeckhausen CDV void the warranty?

quackman · 06-23-2005, 11:06 PM

Quote:

Originally Posted by bookman2

Will the Zeckhausen CDV void the warranty?

From what I hear, the dealer can not tell the modification has been made, so I guess what they don't know they can't void.

05-13-2005, 11:42 PM	#23
NuovoTech Private First Class 1 Rep 125 Posts Drives: 1996 318ti Join Date: Apr 2005 Location: Seattle iTrader: (0)	Zeckhausen does not list the 318's...anyone here know if the 318 has the dreaded CDValve or not?
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05-14-2005, 12:05 PM	#25
NuovoTech Private First Class 1 Rep 125 Posts Drives: 1996 318ti Join Date: Apr 2005 Location: Seattle iTrader: (0)	E90Fleet - So then, are you saying that ALL the E36's in the USA have CDValves...including my 318ti?
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06-13-2005, 09:52 PM	#28
coco Second Lieutenant 14 Rep 284 Posts Drives: Bimmmer Join Date: Jun 2005 Location: Texas iTrader: (0)	owner of Zeckhausen Racing said this: It [E90] does appear to have a CDV. The BMW part number is 21-52-6-764-872. Unlike the other CDVs I've seen, this one has a plastic body and simply clicks into place. I ordered a couple of them to see if they could be modified. So far, I haven't figured out how to do it without breaking the valve. E90 Clutch Delay Valve E46 Clutch Delay Valve
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06-14-2005, 12:47 AM	#29
romeo26 First Lieutenant 44 Rep 354 Posts Drives: e30 325 (no lette) Join Date: May 2005 Location: anaheim, cali iTrader: (0)	may be bmw made the cdv plastic so it will be harder to mod!!! couldent you just atach the 2 tubes together(more direct) and forget about the valve all together?
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06-22-2005, 09:53 AM	#31
coco Second Lieutenant 14 Rep 284 Posts Drives: Bimmmer Join Date: Jun 2005 Location: Texas iTrader: (0)	Update on CDV mod from Dave Zeckhausen (owner of Zeckhausen Racing - http://www.zeckhausen.com/): "The E90 CDV is more restrictive than the traditional metal CDVs. The opening is smaller. The good news is that I have just perfected a technique for removing the valve mechanism without damaging the plastic body. A few valves had to be sacrificed for the cause, but it works now. I can provide modified E90 CDVs to anyone who wants them. I only have two now, but I'll be ordering about 30 new valves from Pacific BMW today, so I'll be stocked up in about a week. That's assuming, of course, that there are a large number of E90 CDVs available for purchase. This order may take them by surprise. " http://www.zeckhausen.com/CDV.htm
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06-22-2005, 10:09 AM	#32
E90Fleet Lieutenant General 1312 Rep 10,185 Posts Drives: BMW Join Date: Apr 2005 Location: South Africa iTrader: (0)	I think BMW are going to be very suprised with such a big order of CDV
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06-22-2005, 10:55 AM	#33
timzerofive there is no spoon 243 Rep 867 Posts Drives: 330i manual Join Date: May 2005 Location: Irvine iTrader: (0) Garage List 2006 330i [0.00]	Any possibility of posting some images with instructions.
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06-22-2005, 10:58 AM	#34
YYdoodle Captain 115 Rep 666 Posts Drives: E92 M3 fanatic Join Date: Mar 2005 Location: MD iTrader: (0)	timzerofive, check out this link, it's got instructions for a 5 series: http://www.zeckhausen.com/CDV.htm I'm sure there'll be instructions posted for an E90 eventually
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06-22-2005, 11:06 AM	#35
CC 330i Captain 44 Rep 722 Posts Drives: 330i SG/Blk/Alum Join Date: May 2005 Location: Orange County, CA iTrader: (0)	Looks like a pretty simple install. I may have to do this. I haven't found that the clutch is THAT bad, but if the CDV mod gives you better clutch feel, and quicker engagement, then I am all for it. I HATE working with brake fluid though. That is some pretty caustic stuff! Make sure you clean up all traces of it and minimize your exposure to it. I converted my old '73 Bronco to disc brakes over a weekend, and put in all new hardlines in the brake system (big job). I swore I would never do any more brake work. I went through 2 quarts of brake fluid bleeding the system! I guess this qualifies as "clutch" work, but I hate bleeding hydraulic systems!
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06-22-2005, 11:24 AM	#36
Jason Administrator 40971 Rep 21,240 Posts Drives: F80 M3 Join Date: Mar 2005 Location: USA iTrader: (0)	Zeckhausen Racing has their page up for the modified E90 CDV. Looks like you'll be able to order these pretty soon. Modified valves are priced at $35. See the following link: http://www.zeckhausen.com/BMW/E90.htm
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06-22-2005, 11:59 AM	#37
E90Fleet Lieutenant General 1312 Rep 10,185 Posts Drives: BMW Join Date: Apr 2005 Location: South Africa iTrader: (0)	People with RHD cars please note they use a DIFFERENT CDV and you cannot use th LHD one
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06-22-2005, 06:10 PM	#38
NuovoTech Private First Class 1 Rep 125 Posts Drives: 1996 318ti Join Date: Apr 2005 Location: Seattle iTrader: (0)	If I understand the below link correctly the dreaded CDValve was never installed on E46 coupes(strangely it was on the M3's). I wonder if this means it may not be on the E92 coupes? http://www.zeckhausen.com/cdv.htm
	Appreciate 0 Quote

06-23-2005, 04:26 PM	#41
ogrady Lieutenant 88 Rep 473 Posts Drives: AW 09 335 Join Date: Apr 2005 Location: Rhode Island iTrader: (0)	Can't wait to do this mod. Any ex-E46 owners here do this mod? Does it make a big difference??
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