damn, thats so sh1tty... I'm sorry bro.

I think we should clarify by stating that there are two distinct issues being reported across the 49 pages so far; a completely limp clutch pedal - generally attributed to a CSC failure. This also means you have a leak which will be observable in a low clutch fluid reservoir from the driver's side engine bay compartment. Your clutch pedal is sitting on the floor board and you have to lift it with your foot.

The second scenario is just a Master Cylinder failure where the clutch pedal only returns 20%-60%. This is also problematic because the car is practically undrivable, at least in a safe manner. The clutch engagement point is about the first inch of release the clutch pedal. You better hope you don't run into any large inclines on surface streets. These issues have really put me off to the 370Z and Nissan in general. If they address it, I will reconsider, and would strongly consider continuing my long standing loyalty.

From what I learned from others who have either had problem with CMC or CSC, is that when one of the two fails you are better to replace both at same time. Also going to a HD CSC is highly recommended. You may also wish to go to a "insulated" version of the short CLUTCH line so as to ward of heat to fluid. This is the second time my OEM CSC has failed. Never again will I buy a OEM CSC . The Nissan part is crap!

Sent from my XT1254 using Tapatalk

Name - Year - Mileage

1: Digitonium - 2009 - 16,158
2: dubhov - 2010 - 6,605
3: Joka4411 - 2010 - 10,000
4: Zeto - 2009 - ?????
5: Calivin - ???? - 11,500
6: Lazer_Z - ???? - 3,412
7: Zilent_Jay - 2009 - ????
8: Crystalline - 2009 - 8,500
9: Sarmyth - 2010 - 10,000
10: Fastfatdude - ???? - 140
11: Quicksliver- 2008 G37s - 25,000-30,000
12: Boost'dVQ - 2011 - 7,600
13: Big_J - 2009 - 21,000
14: Trilitheum - 2011 - ????
15: anthonyy - 2011 - 12,000
16: Youseenothing - 2011 - 9,300
17: 370Z_Purist - 2009 - 12,000
18: Bking - ???? - ????
19: Knio - 2010 - 17,000
20: dragonbreath - 2009 - 28,000
21: juice14 - 2011 - 6,200
22: Random_Strata - 2010 - 36,000
23: L8N8 - 2011 - ????
24: JennyT71 - 2010 - 26,000
25: TheGreatOne - 2010 - 22,000
26: windex - ???? - ????
27: Neptune - 2009 - ????
28: afbunn - 2009 - ????
29: sparhax - 2009 - 40,000
30: sungear - 2011 - 35,500
31: lhinojos - 2012 - ????
32: Steveasis - 2012 - 8,000
33: Slikshoes - 2011 - 16,200
34: Jstevenson - 2009 - 25,000
35: Simota1 - ???? - ????
36: Talimac - 2012 - 14,000
37: Sinceday1 - 2009 - 37,000 (Kilometers)
38: Slipper4678 - 2010 - 34,000
39: luigi90210 - 2011 - ????
40: SAmilitaryman - 2009 - 60,000
41: Shutterjock - 2010 - ????
42: Zensation - ???? - ????
43: Farmosh203 - 2009 - ????
44: Ephan - ???? - 24,000
45: Jstevenson - 2009 - 33,000 *again*
46: Denny_Mcclain - ???? - 18,000 & 43,000
47: DarylP - 2011 - 33,000
48: Kail - 2009 - 48,000
49: hunterinc - 2009 - 45,000
50: MikeUCFL - 2012 - 14,500
51: mdxj - 2009 - 33,000
52: jordan777er - 2009 - 50,900
53: n8gtol - ??? - 20,000 *3rd time*
54: Kylebucket - 2009 - 27,000
55: joelito - 2012 - 12,100 *4th time*
56: 1087 - 2012 - 12,243
57: ohmikegod - 2012 - ????
58: Z_Man - 2009 - 8,000
59: Kuyo - 2014 - 7,000
60: 90_ST - 2009 - 27,500 (Kilometers) *2nd time*
61: Osirus - 2011 - 40,000 *4th time*
62: tr0n - 2012 - 21,000
63: radensb - 2009 - ????
64: JeMo44 - 2013 - ????
65: mab864 - 2013 - 9,900 *2nd time*
66: duderevs - 2009 - 30,000 (Kilometers)
67: tigwelder - 2010 - 15,000
68: Need_NewName - 2009 - ????
69: R3drckt09 - 2009 - ????
70: Johnwiki - 2011 - 60,000
71: UXI - 2015 - 2,012
72: j312311 - 2015 - 1,700
73: pbs370z - 2010 - 9,000
74: Misnomer - 2010 - 28,000
75: Agent_K - 2013 - ????
76: KoolKarmajoe - 2009 - ????
77: BamBamZ - 2009 - 31,075
78: VBP6US - 2009 - 30,000 & 60,000
79: ZBrah - 2011 - 25,465
80: Rumblefish - 2010 - 29,000
81: jwick - 2010 G37 - 1,200
82: Fosingwo- 2011 - 17,000

for EVERYONE that has experienced or even are concerned for yours to go out give Nissan North America a ring and tell the rep you're issues or concerns. 1-800-NISSAN-1 and file a complaint with the NHTSA here https://www-odi.nhtsa.dot.gov/Vehicl...nt/index.xhtml

I only tried to count those with the CSC failure so I skipped several that had confirmed it was the CMC and not the CSC

Ok looking for some opinions. Recently my clutch has been making a grinding noise just before engaging fully in 1st and 2nd gear. I took it to a shop and they said sounds like throw-out bearing. I believe we have the CSC instead of a traditional throw out bearing. Has anyone seen this symptom of the CSC failing or could it be something else? Thanks in advance.

I read that as you went back with a CSC. OEM or HD from ZSpeed?

FYI the elimination kit just replaces the CSC. The reminder of the clutch system remains the same.

I have no idea how you get "I went back with a CSC" (whatever that means) from "I had the entire clutch assembly replaced." :confused:

Am I maybe using the wrong terminology? I don't know anything about parts, but "clutch assembly" is what the shop called it. Whatever parts make up a clutch in addition to the CSC and CMC, they all got replaced.

Once again, I didn't do an elimination kit.

If you don't know what was included in your new clutch assembly, it's possible the shop just replaced your old CSC/CMC with another oem CSC/CMC. If it is so, you're at risk for another failure later on. May be worth to check your invoice for the parts listed :tiphat:

Z's and G's prior to 2007 (before the HR engine) used an external slave cylinder with a clutch fork pushing on it. This is pretty easy for maintenance because there's no need to drop the entire transmission to service the slave cylinder. With an internal slave (CSC), it pretty much lightened up the clutch effort. Lots of cars use CSC nowadays, but all of them eventually face the same issue with leaking and whatnot. The Valeo-sourced CSC body is all plastic, which is one of the factors contributing to these problems. For mine, the o-ring on the piston slipped off. I don't even track my car, drag raced, or even dumped the clutch. There was never a situation where the pedal sunk itself to the floor other than the stiffness in the winter.

Anyway, the elimination kit ditches the internal slave for an external and fork setup.

Simply create a spreadsheet and share it on Google Docs. If you like, I can edit post #1 to include a link to the document.

[EDIT] Please PM me if you want to volunteer with edit permission.

Post #1 edited with link to Google Sheets document on my Google Drive storage. Vbp6US is currently volunteering to help maintain this document.

Vbp6US ,
Add me to that list. Just concern category (if you have one).

schellingr
2014 370z with 10,500 miles.


Thanks.

:(

If you haven't done so, please take a few minutes to write a complaint on NHTSA via the link I pmed to you. It's our only way of getting nissan to step up and fix this.

Posted to the 370z fb group. Any one here in the group please like and share!:tup:

We should also create an Instagram page advising of this issue. The more social media the better I think.

Thought I would share my experience with this issue.

2009 - 49k miles - out of warranty - Central NJ

Day 0: Clutch pedal not returning all the way up.
Day 1: Car won't go into gear. Notice clutch fluid reservoir is dry.
Day 3: Refill fluid and drive to dealer. Hopeful that the flush and GTR fluid from the TSB might save me money. Still was a rip off - $320 for parts + labor. Clutch barely makes it back home. Read this thread.
Day 4: Order OEM clutch (disc + cover), OEM master, Zspeed HD CSC. All from Zspeed.
Day 6: Parts arrive.
Day 8: Car towed to private repair shop. 17 miles away, I didn't want to chance driving it. After showing up 2 hours late, we get the car on the flat bed tow truck. Tow truck blows a tire about 1 mile from my house. It was a long day :-(
Day 10: Back on the road.

Parts ~1070 (incl'd shipping)
Labor ~900 (incl'd tax)

Dealer wanted almost $4,000 (!!!!) which, granted, included new OEM (dual mass) flywheel - but god damn they are a rip off.

For anyone capable of using Instagrams/Twitters etc...PLEASE do!! We need the joint effort of the community to take this fight straight to Nissan. A few guys can only do so much! We need everyone's help and getting involved:hello:

Please share your complaint with the NHTSA via the link below. Thank you!! :tiphat:
https://www-odi.nhtsa.dot.gov/ivoq/

So for the people that want to fix this issue even if the CSC has NOT failed. What is what we have to replace/buy in order to avoid this whole CSC issue? Just replace the CSC with the Zspeed CSC? that's it?

Is this the part?---> http://www.zspeedperformance.com/ZSp...SC-zsp2006.htm

Thanks in advance.

^Yep, replace with the HD CSC AND your oem master cylinder at the same time to prevent future problem.

Does the Master Cylinder needs to be Zspeed as well or just OEM?

Ok looking for some opinions. Recently my clutch has been making a grinding noise just before engaging fully in 1st and 2nd gear. I took it to a shop and they said sounds like throw-out bearing. I believe we have the CSC instead of a traditional throw out bearing. Has anyone seen this symptom of the CSC failing or could it be something else? Thanks in advance.

There isn't an aftermarket master cylinder availlable that I'm aware of. People are replacing the oem master with a new one while the tranny is out.

Sticky: (Official) 370Z Clutch Pressure (CSC) Failures
 

This

If you don't replace the CMC at the time of the clutch swap, you'll be back to do it later. The seals in the OEM one aren't the greatest so make sure not to use a power bleeder.

Wow! "...The seals in OEM CMC aren't the greatest either". What was Nissan thinking when they designed this car? The Z is starting to remind me of my first car in high school, a OPEL GT. It too had crap parts! I'm beginning to regret trading in my old Suburu WRX STI for this "all looks & no reliability car".
:icon18:

My master cylinder might be showing some signs. It's making a loud squeaky noise whenever I depress the pedal. That CMC is another weak point. I had it replaced twice. The original was replaced when it failed after installing the new clutch and CSC at 22k miles. The second one was replaced for the sake of safety when I had clutch issues.

Its shocking that some of these cars with a little over 1000 miles are having these problems.. its crazy. And to these folks replacing a bad CSC with another OEM CSC is just silly.. just my opinion.

I agree.

Sent from my XT1254 using Tapatalk

so basically to avoid the problem:

1) Replace the OEM CSC with the Zspeed CSC.
2) Replace the existing CMC with a new OEM CMC.

Replace those two and it should be fine or does something else needs to be replaced?

How many miles on car? Hard/clutch dumping/track driving? With a OEM CLUTCH/FLYWHEEL? Are you considering to add Forced Induction later? If so you may wish to upgrade FLYWHEEL & CLUTCH kit.

Sent from my XT1254 using Tapatalk

11,000 on the Z currently. Spirited Driving sometimes. No mods and probably no mods in the future.

Your Z will be "golden" with just the HD CSC, & new OEM CMC. Go with Redline dot4 or the more expensive GTR DOT 4 fluid. Both excellent.. Plus you will have piece of mind. Remember to check CLUTCH fluid reservoir every 2nd or 3rd gas fill-up; top off if necessary; all fluids eventually discolor; but I plan on making a CLUTCH fluid exchange once a year considering stop & go city driving I do.

Sent from my XT1254 using Tapatalk

Why not buy the z1 CSC elimination kit instead?

Its a good unit, but it has to adjusted from time to time.

then a new clutch and flywheel isnt necessary.

What does that adjustment entail?

Z1 description from their site....."this conversion kit serves a very narrow window & requires ongoing adjustments". Some on forum say they got to get car on ramps and adjust every 2nd fill-up. There's only so many adjustments that can be made in reality . Sooner or later you've used up all adjustment options. I can go through 2 fillups just trying to get to my vacation destination. I don't have room to carry ramps.

Sent from my XT1254 using Tapatalk

No way. So every 500 miles or so you need to get under car and adjust it?? That's insane.

I wonder how much total in Labor will a stealearship charge to swap the crappy CSC with a Zspeed?