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11-19-2014, 02:59 PM | #1 |
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To CDV delete or not.. That is the question..
Hey guys releasing the clutch in first gear has been a hit or miss and very vague affair...
At times I get a surprise jolt toward the top of the clutch pedal while I am releasing. When I shift slowly.."see-saw" it happens quite often but when I power shift... It's smooth as can be... I can not always power shift as the traffic in my area can be quite ridiculous... Basically will deleting the CDV help with the releasing first gear? Should I be worried about damage to my car with CDV? Which supplier should I get it from?
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Mods: Clutch stop, BMW performance SSK, BMW PE exhaust, CDV delete, Clutch pedal spring delete (CPS delete) : ) - check out the the DIY:http://www.1addicts.com/forums/showthread.php?t=1122797
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11-19-2014, 03:05 PM | #2 |
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11-20-2014, 10:02 AM | #5 |
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BTW: You can either outright delete the CDV, or you can use a small allen key (I think I used a 4mm?) to push the bits causing the restriction out. Obviously do this while the CDV is completely off the car and the lines are capped.
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11-21-2014, 06:35 PM | #6 |
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11-21-2014, 07:40 PM | #7 |
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crazy question guys:
I'm due for a brake flush at the dealership, can I replace the CDV with a modified one and drive to the dealership for the flush? I think the brakes and clutch share systems? Would I be ok driving with some air in the system? does the brake flush cover the clutch? |
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11-21-2014, 08:47 PM | #8 | |
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11-22-2014, 11:30 AM | #9 |
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Gotcha, what kind of fluid does BMW use? Anything good available off the shelf?
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Mods: Clutch stop, BMW performance SSK, BMW PE exhaust, CDV delete, Clutch pedal spring delete (CPS delete) : ) - check out the the DIY:http://www.1addicts.com/forums/showthread.php?t=1122797
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11-22-2014, 11:42 AM | #10 |
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CDV is the gateway mod... pretty soon you will be more addicted to "fixing"/upgrading
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is |
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11-22-2014, 06:17 PM | #11 |
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11-30-2014, 07:22 PM | #12 |
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I recommend this to everyone, I had read about it and one day when i had the car on ramps anyways for an oil change i went ahead and performed this mod. Feels like a proper manual trans now. I hated the CDV and how it made the clutch engagement total crap.
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2009 135i 6MT jb4, ER CP, Tial BOV, 7" VRSF FMIC, BMS DCI, BMS 91 Pump flash running 35% e85
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11-30-2014, 08:07 PM | #13 | |
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CDV Delete/Replacement DIY http://www.1addicts.com/forums/showthread.php?t=209440
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12-02-2014, 08:11 AM | #14 |
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CDV and BMS clutch stop will help a ton. When I first got this car it didn't have a clutch stop and shifting was pretty wonky so I bought that push in clutch stop and holy shit is it better now. Engagement starts pretty much right off the clutch stop. I have every shifting and trans mod available and it's pretty nice
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2008 Aw/Coral Red Manual 135i Coupe-
JB4 G5 + BMS race flash, BMS meth kit, VRSF DP, Big tom Ic, BMS chinese tester CP, Custom Muffler Delete, BMS Oil Cooler Valve, Cowl Filters, Clutch Stop, B&M Short Shifter, Spec Stg 2+ Clutch W/ Oem dmfw, Vmr V710, KW v2, M RSFB, 1M Front and rear Bumper, Performance Side Skirts, slek trunk, Lci blacklines.] |
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11-09-2020, 05:42 PM | #15 |
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I asked a technician today if he could perform a CDV delete for me and he advised against it. Said it would actually make the tranny more notchy not less. He said for city driving the CDV delete is not ideal. Instead he suggested putting in braided hose to help make the shifting smoother. He said to look it up but I've found nothing on it. Anyone have any thoughts or advice?
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11-09-2020, 07:10 PM | #16 |
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Eh, depends on you. New to a clutch? Skip it. Have decades of experience? Do it right away.
Some of our line is metal, the other half a seriously heavy duty hose. I doubt a braided line will be noticeable if one even exists for us. |
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11-10-2020, 09:17 AM | #17 | |
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11-11-2020, 06:51 AM | #18 | |
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Going into 1st and 2nd on mine can definitely be a bit less smooth than I would like. It's on occasion and seems to depend on what rev. But the car is new (to me) so maybe it's just a matter of time to figure out the "sweet spots" ? |
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11-11-2020, 07:20 AM | #19 | ||||
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11-11-2020, 07:25 AM | #20 |
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That's what I meant. It can be a bit notchy going into 1st and sometimes 2nd. But not all the time. Sometimes even when at a full stop going into 1st isn't the smoothest but mostly it seems to be speed / rev dependent.
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11-11-2020, 08:32 AM | #21 | |
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But before I'd worry about that, I'd have the transmission fluid changed to what a good BMW shop recommends in your area. Here in the USA that's usually Redline MTL or ATF. |
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11-11-2020, 09:03 AM | #22 | |
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