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Clutch secondary cylinder failure

8 posts in this topic

Posted · Report post

Hi guys,

About two months ago my clutch pedal on my 2015 370Z fell to the floor and wouldn't return to it's natural position, lucky for me I had the extended warranty and it was covered. They said it was the clutch secondary cylinder, replaced it and off I went. Except it's just happened again. Has anyone else had this issue? I've seen a few posts online about the 350Z and 09-13 370Z's having this problem but not 2015 onward. I don't thrash or track my car, it's just a daily driver, and I'm not super keen to have my car off the road for another three weeks while they troubleshoot very, very slowly.

If anyone has had this issue and has a fix I'd be incredibly thankful,

Cheers.

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Posted · Report post

Common fault that affects all year 370z’s and hr 350’s.  General consensus is the stock slave cylinder is crap and is highly recommended to fit an uprated item (z1 motorsports or conceptz performance sell them). Stock item can last 1000km or 100000km it’s very random but when they do fail it is recommended to replace the master cylinder as well as the slave cylinder and to use brake /clutch fluid that Nissan put in the Gtr.

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Posted · Report post

Happened to me almost 4 years ago.

Replaced it with the Z1 CSC Elimination Kit.

Changed the master cylinder as a precaution.

Installed OS Giken clutch kit while it was on the hoist.

No issues anymore!

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Posted · Report post

+1 for these comments^

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Posted · Report post

Hi all. Female diver here who has limited car knowledge these days, I am really confused about this issue and am looking for your guidance and experience out there please. I have a 2012 370Z manual which has been cherished since new. It has only 32000 kms on it. At 27000 kms I did the 40K service as it had been stored for a couple of months and was 6 years old. I told Nissan at the time that the gears were a little stiff to which they said all was good and the clutch system was inspected as part of the service. It hadn't had any other symptoms but when driving one day the clutch pedal went down half way, I hooked it up with my foot and managed to park safely before it totally failed. I drive normally and city driving has been minimal as I like living regionally, I have driven manual and sports style cars for years and never had this happen before. Nissan state that "Your clutch went because the pressure plate failed and wore out the clutch and put hot spots on the fly wheel". They have quoted: 

Solid fly wheel clutch pack $ 1739.05, Labour 7.5 hrs @ $143 p/h,  inc time spent ) $ 1072.50 Total $ 2811.55 

Dual mass fly wheel clutch pack  $ 3099.25, Labour 7.5 hrs @ $143 p/h ( inc time spent )  $ 1072.50, Total  $ 4171.75

Is this reasonable? from what I have read the CSC may have caused the issue in the first place though Nissan state there were no leaks. I have received mixed advice about what fly wheel to put back in? Noise, handling, longevity, gear damage etc. I am also loathe to keep spending a fortune on something that will continue to fail. Has anyone else had the same issue - did Nissan come to the party out of warranty due to crap components? Any recommendations as to clutch kit brand? Should I sell it? Do they replace the cylinders? Anything else I should ask or watch out for? I am based in the Adelaide region SA. Should I get someone else to look at it?Thank you so much

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Posted · Report post

Hi all. Female diver here who has limited car knowledge these days, I am really confused about this issue and am looking for your guidance and experience out there please. I have a 2012 370Z manual which has been cherished since new. It has only 32000 kms on it. At 27000 kms I did the 40K service as it had been stored for a couple of months and was 6 years old. I told Nissan at the time that the gears were a little stiff to which they said all was good and the clutch system was inspected as part of the service. It hadn't had any other symptoms but when driving one day the clutch pedal went down half way, I hooked it up with my foot and managed to park safely before it totally failed. I drive normally and city driving has been minimal as I like living regionally, I have driven manual and sports style cars for years and never had this happen before. Nissan state that "Your clutch went because the pressure plate failed and wore out the clutch and put hot spots on the fly wheel". They have quoted: 

Solid fly wheel clutch pack $ 1739.05, Labour 7.5 hrs @ $143 p/h,  inc time spent ) $ 1072.50 Total $ 2811.55 

Dual mass fly wheel clutch pack  $ 3099.25, Labour 7.5 hrs @ $143 p/h ( inc time spent )  $ 1072.50, Total  $ 4171.75

 

Is this reasonable? from what I have read the CSC may have caused the issue in the first place though Nissan state there were no leaks. I have received mixed advice about what fly wheel to put back in? Noise, handling, longevity, gear damage etc. I am also loathe to keep spending a fortune on something that will continue to fail. Has anyone else had the same issue - did Nissan come to the party out of warranty due to crap components? Any recommendations as to clutch kit brand? Should I sell it? Do they replace the cylinders? Anything else I should ask or watch out for? I am based in the Adelaide region SA. Should I get someone else to look at it?Thank you so much

reasonable. If correctly diagnosed. At the labour cost to drop the gearbox i would replace it all anyway. Parts required:

-Clutch master cylinder

-heavy duty concentric slave cylinder

-Clutch & flywheel kit

-dot 4 fluid 1L

Suppliers US: Z1motorsport, concept z, Zspeed, specialty Z.

Suppliers Aus: try Xtreme clutch australia im pretty sure they have a heavy duty concentric slave option. 

Or if you want to lash out grab the OS giken clutch kit from Otomoto 👌

 

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Posted · Report post

Try having the clutch fluid replaced first and correctly bled to see if your clutch pedal returns. If not then you’ll probable need a new csc and cmc. Your mechanic would be able to inspect the clutch when fitting a new csc. P.s Nissan will rob you blind if you let them, find a trusted local garage

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