BMW CDV Delete | Clutch Delay Valve Removal

[@tomthompson7400]

a pair of long nose vise grips is the way to go , with a deep socket over each jaw , makes a very good hose clamp .

[@skidmark1977]

You are an absolute legend sir. Your boot swap video (still the only one I can find) gave me the confidence to do the hatch on mine which I did last weekend and now I have found this video it’s 100% getting done - that lurching in 1st gear is soooo annoying !! PEACE!!

[@skidmark1977]

Update on this… job done.. as per video, this job is easy, nothing stiff or hard to undo, I clamped my clutch line really well so only literally a drop of fluid came out so I didn’t bother bleeding the clutch.. can actually feel the clutch now and pull away from junctions as normal without the dreaded lurch!! top video 💯

[@unixnerd23]

Made a massive difference on my Z4. Didn't need to bleed clutch after.

[@damiangrabowski2104]

thanks dude . no one explained that this valve is responsible for this drop from first gear to second. it's annoying. I knew it delayed and prevented from hitting the dual-mass clutch

[@GeorgeAusters]

No problem mate

[@BasitKhan-eo5rn]

I swear, I always wondered when I drove my BMW, have I become a worse driver but it is that silly CDV. I need to remove it! thanks so much (I just about got used to it)

[@LastRehabDehradun]

Nice feeling u shared.... Same here

[@markwebster9455]

Same here, have been driving manuals for 25 years but struggling to change gear smoothly in my mini, CDV is coming out at the weekend😀

[@swicked86]

I'm thinking it's easier to block of the brake master so it holds the fluid in the line. Love that you validated the CDV can just be bypassed.

[@Zodiam.]

Great video George, doing this on my E92 335i next week to hopefully make my aftermarket clutch easier to take off with, by far the most clear video on this subject that i have found.

[@GeorgeAusters]

Glad it helped!

[@alexfitz6204]

Brake fluid removal kit .🤣 brilliant mate.. glad to see that smile on your face. CDV added to list ✔ while car is up on ramps keep them coming champ.🏅

[@GeorgeAusters]

Haha cheers mate!

[@johannjohann6523]

good video as it seems this is an odd thing BMW does with their manual transmission vehicles. everyone agrees when its deleted how much better the clutch feels. glad to know.

[@user-ek5qu6he6m]

do you recommend this or getting the adapter?

[@joebloggs4191]

I have never bought a BMW with a manual gearbox because I never liked how they shifted, mainly from standstill. All manual BMWs I have driven felt like they were kangarooing in first gear and hence always purchased automatics. Seems like this CDV is the culprit for that behaviour and maybe next time i'll try a manual with the CDV deleted.

[@GeorgeAusters]

Worth giving a go!

[@thomo3663]

Ive just done this on my car, the bite seems really low now. When pulling away it bites almost straight away then its really light for about 3/4 of the way up. Is yours the same? I dunno if its just because the fluid can flow alot more freely so it feels lighter

[@bobbymoore83]

Did mine last night , amazing difference

[@GeorgeAusters]

Good stuff

[@machy1877]

Nice bro but one thing if removed it I will have to stop spinning because it will effect the drive train and I should not make a quick shifting 😢

[@danlongyear49]

George!! Just when i think theres not much else to do to mine! Mines in for recall Sat, but i know what im doing sunday now

[@GeorgeAusters]

Haha def worth doing on a manual mate

[@KAOS_REAL]

Your face at 9:40 hahah I told you it transforms the way it drives, it just changes gears like old fashioned proper cars, when you try and do a quick change it always tried to smooth out your changes and make you drive slower

[@ITzPoWeRzZ]

Is there a clutch delay valve on the 123d e87 msport?

[@huggy15]

Is it the same process on the f30? Thinking about doing it this weekend. Fed up of not having total control of the clutch😏

[@mjojrjr6231]

My mechanic did the gear oil change and I ask him to remove that clutch delay valve. So much better now 👍

[@GeorgeAusters]

Good to hear

[@TheDeadPlate]

Is this just a back flow restriction?

[@Jayturbo_ENTJ]

Can anyone recommend a mechanic shop that can do this around LA(SoCal) area?

[@crazy4gta1]

My e92 was the car I learned how to drive stick on (I’m American). This little bastard made it so much more difficult. The first shift after I removed it, I instantly noticed an improvement

[@Simmuh2]

@George austers Mate, i have a problem. I tried to delete cdv but it wouldnt come lose. Still had to bleed the clutch, but i failed and now there is no pressure on system. Its full of air. Can i just use your method? Keep the clutch down and open the bleeder till bubbles are gone? Or do i need to add pressure again for it to work. I forked up big time and also the bleeder is a little rounded and i need to find a way to open it...

[@joshcatalano5127]

What happend in the end

[@Simmuh2]

@@joshcatalano5127 i realized that i did it too much and lost too much fluid. Filled it up again, was around 0.5cm under max and it worked

[@deundreaverett3623]

You got this man.

[@GeorgeAusters]

👊🏻

[@jonathannorton5423]

Is there one on the automatic transmission?

[@GeorgeAusters]

Does your car have a clutch? 😉

[@robrodriguez4866]

George Austers ... yea. He doesn’t engage it himself but it’s there.

[@vincejordan2715]

@@robrodriguez4866 just incase this wasssntttt sarcasm, traditional automatic transmissions don’t have clutches. The 335IS and m3’s have dual clutch automatics, but the regular 3 series’ have torque converted automatics.

[@piovo1]

@@robrodriguez4866 no sir it doesn't ZF 8 is used in all f30s unless manual obviously.

[@chrippahd8974]

Hello is there one on the BMW 123d automatic?

[@GeorgeAusters]

No, it's a clutch delay valve

[@disturbator]

Does the clutch becomes softer? My clutch is too hard

[@franciscorivas5908]

Does anyone know what the name of the line is that is connected between the clutch delave valve and slave cylinder (called not the hose) seen from 1:20 - 6:15

[@costelstan5279]

My bmw f30 320d pedal clutch has a slow return is it normal?

[@GeorgeAusters]

Clutch may need bleeding

[@costelstan5279]

@@GeorgeAusters mostly when i floor it in sport mode after switching gear has a slow return

[@LastRehabDehradun]

Hi bro... Wt benifit cdv deleting.. Plss tell me

[@LastRehabDehradun]

Will car also run faster than before after deleting this c d v.... Plss telll

[@scooooott]

Great video George 👍

[@GeorgeAusters]

Cheers mate

[@daviddorado5632]

Yes youre right. I just did it and goes much smoother and progressive, and the pedal is not hard as a rock anymore. I dont really understand why bmw puts that valve, makes no sense to me regardless the quality of the driver

[@magmetasour]

What is this transmission code? I had 8hp45 transmission. Is this have this valve?

[@piovo1]

nooooo dude, its for manual cars CLUTCH DELAY VALVE (CDV)

[@ash_common_carper]

So a year on is the car still good ? I’ve got a 1 series 2.0 petrol that unless u ride the clutch like ya gran it judder in first 😂

[@GeorgeAusters]

Yep still good

[@sufzyyyy]

Finally got CDV removed on my 2010 e92 - 320d M Sport , was having clutch judder issues on slopes and 1st to 2nd. Was qouted £55 to remove but it was tricky to take out so cost £100 labour but no complaints as the damn thing was annoying. After 3 months of driving with no CDV i have had zero clutch judder (massive improvment). Although the gears dnt seem to be shifting smoothly and have resistance untill the car warms up, will remove transmission oil soon.

[@piovo1]

£100? Certain any mechanic with a lift can get it done in less then 20mins, I done with a jack in 30mins and bled the clutch with a diy bleeder.

[@scarletturk3892]

I can't think of anything that could be potentially problematic about that procedure for anyone remotely competent, let alone a professional mechanic. Only thing I can think of would be if the screws securing the undertray had corroded. If all, or most were knackered, it would take a bit longer as they'd need to be mole-gripped off and replaced. I think there are 12 or 14 screws, but I bought 50 for about £6 on Ebay, so they're not expensive. If it wasn't that, then I reckon they ripped you off there.😡 Good to hear it's an improvement.

[@paulpaul2902]

Hi I've a e91 2010 model. It sometimes judders when bring the clutch up in first gear only. Would removing this fix the clutch judder and does it bring a warning light on the dash. Thanks

[@GeorgeAusters]

It can help, no it doesn't cause a warning light

[@paulpaul2902]

Thank you for taking time to reply

[@stevelake9333]

My bimmer is an 91 with 140k miles on it , would you leave it or still do the delete ? I don't drive like a dick but do like to put my toe down a bit when I can

[@gamerzrule2281]

do you have to bleed the clutch after removing the cdv

[@GeorgeAusters]

If you don't want air in your system yes

[@gamerzrule2281]

thanks mate 🙏🙏

[@Simmuh2]

@@GeorgeAusters how do you bleed it?

[@Simmuh2]

@@DigitalDissident didn't watch it through tbh, saw it later

[@Simmuh2]

@@DigitalDissident was on the jump

[@vipp6826]

BMW E60 ?

[@LR95051]

My car (2007 e90 320d 163hp) is on 167k never had the timing chain replaced, the egr is still on, I’m planning to do an egr delete but I’m worried that it may cause problems in the long run, i service the car every 8k-10k with Castrol edge oil, how ever as of lately I’ve noticed a lack of power and throttle response, any tips of what i can do to resolve this would be much appreciated

[@GeorgeAusters]

Send me an email mate: [e-mail]

[@kjschrauber2126]

Get the intake manifold of, put it in a tub with diesel and wait couple of days, soot comes loose and then get the diesel out with brake cleaner und important to blast it out with pressurised air. And block off egr before

[@joshcatalano5127]

Hi mate what was the problem In the end

[@kjschrauber2126]

Try motul 5w-30 or mannol 5w-30

[@darkjak4]

Did my CDV-Delete question on the live got you thinking George? lol

[@GeorgeAusters]

Maybe 😉

[@boistoys5451]

The manual transmission M cars don't have this valve.

[@mtreedrew]

My 99 US E36 M3 has one

[@abbas819]

Ok, i fkd up! I did CDV delete/clutch valve delete and the hose came loos while driving it was dripping break fluid, and while that happened the clutch went dead loose. Unable to change gear What can it be?

[@GeorgeAusters]

Did you bleed the clutch?

[@abbas819]

George Austers Took it to an auto mechanic shop, they bleed it now all good ☺️

[@GeorgeAusters]

@@abbas819 Good stuff!

[@davidwozny3484]

Hello i have the exactely the same car and your tutos are very helpfull thanks for that 👍👍👍👍

[@GeorgeAusters]

No prob David!

[@joehodgekins8423]

Guessing this is only on manual cars?

[@MrDanielsahne]

Nice Video👍

[@viragpatrik2979]

I have a e87 116i, just deleted it a couple of days ago , and its night and day diference,it feels like its not the same care anymore, it crazy🤣 -I strongly recommend this delete. And also the video has good information/explanation.

[@GeorgeAusters]

Glad to help!

[@Pauwlus]

Next thing on my to do list.. Love the spiders.

[@tcjay119]

Is this only a 5 series thing? In my 1 series I've never felt any delay, feels like every other car ive driven. Edit - also i can do burnouts without smoking the clutch which is what i thought a cdv doesn't do🤷🏽‍♂️, I'll definitely have a look tomorrow though

[@GeorgeAusters]

Interesting, check to see if yours has one👍🏻

[@Xfacehack]

yeah my 330d e91 (lci) n57 don’t feel differently from any other regular manual car. Have to check if i have one now. Been driving that car for over 3 years now. I be surprised if i had one.

[@KAOS_REAL]

You can remove it by taking it off and shoving a screwdriver through the middle of it and put it back on, so visually it’s still there but it’s got no valve in the middle any more, so to be sure by looking at it you won’t be able to tell if someone modified it unless you take it off yourself, this is sometimes done when the flex pipe isn’t long enough to connect the two ends

[@tcjay119]

@@DigitalDissident its a 2008 e81 118d, mine hasn't got it so maybe a previous owners already removed it

[@markcassidy5980]

Yas u done it mate 👊

[@waterfordMARTIN]

Whos watchin this and has automatic one? 😂

[@Supremepikachu]

You.

[@sunxero8321]

😂

[@DanielleAusters]

👍🏼

[@GeorgeAusters]

👌🏼

[@danburgess1514]

Year, and model would have been more helpful…

[@GeorgeAusters]

It’s the same for pretty much all BMWs

[@MohVlogz]

You look like that guy from Neighbours lol

[@GeorgeAusters]

Who? 😂