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

z man

FYI, I got 8,000 miles out of the replacement CSC/CMC using GTR brake fluid. You may get more, or maybe less...there is no warning given and for sure, it will fail again!

Misnomer

The dealership called: they don't see anything wrong with the clutch, but they recommended replacing the fluid. They also recommended replacing the brake fluid. I said "sure" to both; can't hurt. It's not like the clutch doesn't work now, so I guess I'll just keep truckin' for the time being. If/when it happens again, though, I'll replace the CSC and CMC with aftermarket parts.

kuyo

VIN: 563373
Purchase Date: 03/21/2014
Occurrence Date:5/2/2014
Occurrence Mileage: 7000
Clutch Type: OEM

Same story different car...It did this when I was at a tech meet 5 weeks ago but after I pulled over and gave it 10 mins and pump the crap out the clutch it came back to normal....Then today after getting gas,the clutch hit the floor and I couldn't shift gears if I put it in neutral. Limp it all the way home in 3rd. Tow truck just took it away..Only had my Nismo for about 2 months now.

z man

Here's the US Gov't website to file a complaint. (Home | National Highway Traffic Safety Administration (NHTSA)), maybe if enough people file their complaint, a recall will be issued. This has been and will be an on-going problem, like it was and is in years past with the 350z, and the same part. Conduct a search of the 350Z, and 370Z (under power train, and you will see that the saga continues)..

1slow370

better yet search ANY new nissan that has a manual trans offered every nissan slave has these issues.

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JARblue

They are made with plastic internal components. It's just stupid.

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kuyo

just got the call from the Baker Nissan..same story..their gonna dump GTR fluid in it and give it a test drive. They check out the CSC and from what they seen it doesn't need replacing which they have to go by the Nissan warranty guide lines whihc is dump GTR fluid in it.

Noted probably1 of our best 370z mechanic's in Houston Jason is working on my nismo

Edit:Update 5/12
Well the GTR fluid didn't work...When My oil temp got close to 220, the peddle start sticking to the floor again so Baker Nissan is now replacing my master slave cylinder no questions asked

kuyo

for future owners, thsi seems to be the key to the problem...this happenned to me as well..when the temp gets to around 220, if your having any kind of CSC or CMC problem, your pedal will STF

DIGItonium

Oil temps don't matter, but clutch fluid does. Those who track end up boiling the fluid, and the pedal can sink to the floor when it hits those temps. My pedal sunk to the floor without any warning as I was pulling out of the parking lot at work, so everything was still "cold." The little rubber ring in the CSC dislodged itself.

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90 ST

Well i've now had both CMC and CSC done twice in 4 years, which for me is about 275000kms.

z man

Hot or cold brake fluid doesn't matter, when the plastic O ring in the CSC fails, it fails. The reservoir will be empty and the fluid will drain out. The Service bulletin requires dealerships to fill the car with Dot 5 or Nissan GTR brake fluid to treat the symptoms of a sticking clutch pedal. This may prolong the problem, but it does not correct or solve the problem. The design of the part (using plastic parts) is the reason for the on-going CSC failure....it doesn't have anything to do with driving the car hard (as the dealership TRIED to allege, when my first one failed)...btw, I don't drive my car fast or hard.

Fact: If you have a Nissan CSC, it will routinely fail regardless of how you drive or service the car!

kuyo

well either way if it fails again I'm going to see if I can get the Z-speed or anything aftermarket period since the OEM seems to be worthless no matter what you do

esfourteen

This is on my list if my zspeed slave ever fails:

Z1 Motorsports Clutch Concentric Slave Cylinder Elimination Kit

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Fountainhead

Fail 3 times any component, Lemon Law!

Indiana102

Has anyone successfully, besides MrAurora, had their CSC replaced under the powertrain warranty? Nissan is fighting me on this right now, but I'm throwing documentation right back in their face. The entire fix is $1100, which is absolutely absurd. I drive an 09 manual with 42,000 miles on it. She's babied and everything. Really pisses me off that SO many 350z/370z/G37 owners have had this EXACT same problem and there hasn't been a recall. If anyone has filed a case with Nissan America and won, I would greatly appreciate your insight and your case number, so I can prove to Nissan that this IS a widespread problem - and that they've acknowledged it in some cases.