CDV... i'm a believer now too....

[epbrown]

Originally Posted by AtoB

you have to let me know how you like the 3.91 diff... it seems like a great mod... one with real gains.

Luminor had this done already, though he went all the way: 4.10 diff. He's been ...enthusiastic () about the results.

[ROAD EAGLE]

Cool!!

How long does it take to do this?
How much does it cost to have some one else do it?

Thank!

[AtoB]

Originally Posted by ROAD EAGLE

Cool!!

How long does it take to do this?
How much does it cost to have some one else do it?

Thank!

$30 for the valve, $100 or so to install.
took my guy 30 minutes

[inTgr8r]

Originally Posted by AtoB

$30 for the valve, $100 or so to install.
took my guy 30 minutes

$100 for 30min? ...seems a little on the high side.

This is a DIY if you can handle a wrench & bleed some brake fluid.

[AtoB]

Originally Posted by inTgr8r

$100 for 30min? ...seems a little on the high side.

This is a DIY if you can handle a wrench & bleed some brake fluid.

yeah, a bit more than i wanted to spend... but i watched him... he checked, re-checked, had all the right tools for the job.... was very thorough... plus, i had no desire to climb under my car this time of year.

[sixspeed]

Originally Posted by RussRamz

I did mine and you don't need to bleed the clutch if you clamp the hose near the fitting. I think I lost about two drops of fluid in the process.

I will eventually bleed the clutch when I do the brakes this Spring when I get the car prepared for its first day on the Nordschleife. I can't wait!

I didn't need to bleed the clutch either.

When are you heading to the NS? We're there over the Easter weekend (20th - 24th March). Just booked our accomodation yesterday!

[RussRamz]

I'll likely hit every descent weekend that I possibly can for the upcoming season. I live only one hour from the NS. Keep in touch and I'll see about getting up there over Easter. Are you staying at the Hotel Tiergarten? I love the food there!

[Morades]

Has anyone in the Bay Area had this done at a shop? I'm mechanically challenged and want to get someone to do it for my 07 M Coupe that I just finished break in. Just need to find a shop that can do it and has no affiliation with BMW SF.

[Dammmittt]

I'm sure the local BMW CCA chapter could point you in the right direction...

[rc'Z]

Originally Posted by Dammmittt

Just remember, if you do it...you'll have to relearn your car...not worth it after driving with it for so long...unless you still get her to buck like a bronco

Is it this dumb little valve that causes the bucking bronco effect ever so often?

[RussRamz]

Originally Posted by rc'Z

Is it this dumb little valve that causes the bucking bronco effect ever so often?

Yes, and unless you're Dammittttttttttttt, you'll 're-learn' your car in about 30 seconds and love it...

Sorry for the pointed jab D.

[Hawkeye]

Originally Posted by RussRamz

Yes, and unless you're Dammittttttttttttt, you'll 're-learn' your car in about 30 seconds and love it...

Sorry for the pointed jab D.

I always wondered what that was, I always thought it was a user error! Always happens going into 2nd gear right after I hit a bump! It has only happened when pulling into my workplace.

[Dammmittt]

Originally Posted by RussRamz

Yes, and unless you're Dammittttttttttttt, you'll 're-learn' your car in about 30 seconds and love it...

Sorry for the pointed jab D.

It's all good man. I'll end up doing it eventually...just not on the top of the to do list since I've dealt with it for over a year...

[RussRamz]

Originally Posted by Dammmittt

It's all good man. I'll end up doing it eventually...just not on the top of the to do list since I've dealt with it for over a year...

I should be here when you return. I just received another three years to begin this Summer.

[Dammmittt]

Nice. Congrats...hopefully mother Army allows me to return

[Da Geez]

I'd really like a DIY on this subject.

[wrh3]

Lower Shield (cheese grater) is removed by removing 4-10mm bolts



Clutch line is clamped and CDV is removed by first removing hard line (11mm flare wrench) and then CDV from flexible line (17mm flare wrench)



Clutch line is bled using pressure bleeder and 7mm wrench



Some of the information in my 335i write-up may be applicable (like the pressure bleeding process) found at http://www.billswebspace.com/BMWCDVMod.htm

[bfry]

Originally Posted by epbrown

I've got one on my desk as well, but the plan is to install it when I swap in the 3.91 diff. I want these to be my first mods, before I get too used to the car without them (I'm only at 1500 miles now). I might add that UUC SSK at the same time.

desk drawer as well.

[kav]

how many have removed their CDV on their own and not bleed their brakes?

[jmillet]

Originally Posted by kav

how many have removed their CDV on their own and not bleed their brakes?

You're bleeding the clutch line not the brakes although the clutch slave is fed off the brake fluid reservoir.
When you disconnect the flex clutch hose to remove the CDV you will most likely introduce some air into the clutch line. If air is introduced you will feel a very spongy clutch pedal. Sometimes if you let the car sit overnight the air bubble will rise up through the line and disperse into the brake fluid reservoir.
I prefer to pressure bleed the clutch system using a Motive Power Bleeder.

[sales@ESSTuning]

Originally Posted by Dammmittt

I've learned to live with it...

I knew a guy that had crabs and said the same thing ... but in the end it was just better to get rid of them

[Dammmittt]

Originally Posted by Rom3n

I knew a guy that had crabs and said the same thing ... but in the end it was just better to get rid of them