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

Jsolo

Unless rules are different in canada, csc is not covered under power train. Should be covered under extended.

How many miles on the car? How is it driven?

Why would you check your brake fluid for clutch purposes? Also, why get a brake warning light or mushy brake pedal??? The two systems are completely independent of each other.

Low brake fluid is a function of worn pads, not failed csc.

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G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring

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sinceday1

1. 37,000km
2. Not abused, but not like a granny
3. Aren't they related?

Sucks they're not covered under the warranty.. But they're looking into the tech. bulletin. They noticed that there's a tech bulletin RE: clutch pedal sticking.

Jsolo

That's pretty low miles for a csc failure, although it seems to happen even on newer cars, so who knows.

The only relationship between the brake fluid and clutch is that it's the same type of hydraulic fluid used in both systems. Other than that, they are independent systems in this driveline. Some mfg's do use the brake reservoir as a source of fluid for the clutch. This isn't one of them.



The clutch one is the smaller of the 2 in the pic above.

If it's the same bulletin i've read before, it involves changing out the fluid to that of the gtr brake fluid (higher wet/dry boiling points). I guess that's a starting point rather than dropping the trans to inspect for a failed csc.

I'm guessing you never flushed/bled the clutch fluid? It is possible there was moisture/an air bubble.

Let us know what they find.

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G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring

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sinceday1

Ok.. yeah it's the smaller one I checked..

I will update as soon as more information comes along.

**Update**
CSC is gone. Small contamination to the clutch disk.
I decided to replace CSC,Master,clutch/flywheel to aftermarket.

Fountainhead

Keep us posted as to what you get and review it here please! Good luck!

sinceday1

Will do.

Ordered from Zspeed,
South Bend Clutch SS Street Clutch and Aluminum Flywheel with silent disk option
HD CSC
Motul RBF 600 Brake fluid
Motul MT fluid

Should be here monday/tuesday!

jstevenson

so with the bulletin, is the new school of thought to take your care into the dealership to have them replace the fluid regardless now?

sinceday1

I would say that's probably the best you can do at this point. Up here in Canada, however, the bulletin is only in the 'development' stage.

slippery4678

CSC failure

34k miles
6/19/13 DOA (at dealer)
21 days past warranty
daily driven spiritedly

Driving from Arlington to Ft. Meade, the clutch started with about half pressure from the floor and slowly lost it completely. I parked at work and when I went to take it to the dealer during lunch, I couldn't even get it in gear. I had to keep pulling the pedal from the floor then pushing it back in to finally get it into gear before starting the car. It stalled at a couple lights and I barely rolled into the dealer which was ~4 miles away.

The service tech said it would've cost $2300 but was on the phone with Nissan all day and got me a "deal" for $850 for the whole assembly. Intake and tune down the drain If this ever becomes a recall like the steering lock, will I be refunded the cost?

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Stillen CBE | Berk HFC's | Intake Plenum | AAM UpRev Tune | Swift Spec-R Springs | H&R 15/20 Spacers | 265/285's | Stillen Sways | 20% tint

Jsolo

$2300 for what? Replacing the entire clutch, or just the CSC?


$850 doesn't sound like much of a deal if it's just the CSC.

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G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring

For sale links

ChrisSlicks

If it were to become a full-blown recall you would be refunded, however that seems unlikely since Nissan can instead call it a service bulletin which is not retroactive and only applies to warranty work. The only way to force a recall is to flood the NHTSA (part of DOT) with complaints.

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slippery4678

$2300 for the whole clutch assembly.

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Stillen CBE | Berk HFC's | Intake Plenum | AAM UpRev Tune | Swift Spec-R Springs | H&R 15/20 Spacers | 265/285's | Stillen Sways | 20% tint

Shutterjock

I suggest ensuring these folks call the regional NISSAN office(s) for confirmation of the fix. This issue has been around long enough and, as of last Spring when it happened to me, the fix was much simpler -- assuming swapping out the Master Cylinder AND slave is simple in comparison.

I am not a pro-mechanic, so my terminology may be off a bit; yet I'm quite certain the regional office told the folks down here in New Orleans to pop out both parts and replace.

No issues since.

Sounds like overkill on their part if they're talking about replacing the entire clutch assembly. Again, I'm not a mechanic so take what I'm offering with a grain of salt (so to speak). I'm assuming the "entire clutch assembly" means a bit more than what I mentioned above. Good luck!

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DIGItonium

I'm surprised no one stickied this thread yet since this problem is so common, and that we've been seeing at least one new thread each week about it.

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martin82

Class action lawsuit time!! My transmission is grinding again like last time before loosing pressure on csc