What gets replaced with new transmission?
 

Hey all. For those that have gotten their transmissions replaced under warranty, what was replaced along with the transmission itself? My Z is at the dealer getting a new 6spd transmission due to grinding in 5th gear and was wondering if they would replaced the CSC as well.

I believe you will get a new OEM CSC. My understanding is the CSC is supposed to be replaced each time you drop the transmission.

You might want to consider purchasing the heavy duty aftermarket one and have them install it instead. Although another thing to consider is when your clutch might need replacing. I don't know whether the heavy duty CSC can be reused, so if you have a lot of miles on your clutch and think it might need replacing in a year or two, you might be better to let them just use an OEM CSC and then go to the heavy duty one when you replace the clutch. My plan is to replace both the clutch and CSC with aftermarket parts when one fails first regardless which one it is.

It'll save a fortune in labor if you have them replace the clutch while they're in there.

That's what I thought at first, but they wanted $1,800 for the parts alone :eek:. I figured that if I do need to replace the clutch, it's going to be less than that with an aftermarket clutch including the labor.

Sweet Jesus no. I meant bring them an aftermarket clutch and have them throw it in while the trans is out.

If you go this route, definitely get the heavy duty CSC.

Yeah, I thought that was a given.

...oh man, you're right. It's a little late now though. It's at the shop as we speak. I didn't think they'd install at aftermarket part. They usually give people a hard time, so I didn't even think about doing that. I still have the extended warranty on this car and was hoping the clutch could last a bit longer. It still feels like it has a lot of life left. Most of my driving is on the highway (currently at 42k miles) and I'm usually pretty easy on the clutch.

If you've got the extended warranty, just let them keep putting OEM parts in while saving up on your own to do the job right once the warranty expires. Bonus points for having the clutch and CSC already purchased and mothballed before the warranty runs out.

I do too, but it wouldn't be the first, second, or even third time someone used an OEM CSC with an aftermarket clutch :ugh2:

If everything is being done through warranty right now, at least you aren't double paying the labor costs when you do have to replace the clutch. I think I saw CSC replacement invoices for ~$700 (the part costs ~$100), so the potential savings is probably about $500-$600 in labor. If you get a good bit more life out of the stock clutch, you can better brace for that labor cost to pull the transmission once again. FWIW, most of the clutch kits I am looking at come with the heavy duty CSC included.

Like I said, it's already at the shop getting work done, so I can't really do anything at this point. I would have bought a new oem clutch and brought it in. Had the quote to replace the clutch been more reasonable, I would have done it. That's why I asked for the quote in the first place thinking I could save some cash with the transmission out. I think a local tuner shop can replace the clutch for around $1200-$1,400 including a new clutch & labor...still cheaper than what the dealer quoted. I'll just have to bite the $500-600 labor cost.

I didn't want to throw in aftermarket parts just yet since my extended warranty is still in place....especially when it's a drivetrain component. God forbid they somehow blame an aftermarket clutch for ruining a new transmission, although unlikely. My main concern was the transmission, which cost a heck of lot more than the clutch. As long as that's taken cared of, I'm really okay with having to replace the clutch down the line.

when i had mine done under warranty, they did the trans, csc, and clutch

Bump..

I looked up the microfiche and because of my poor understanding of the csc, I'm unable to identify which one it is. Is this the part?

Clutch Concentric Slave Cylinder (CSC) Tube

Or is the attached image the CSC that should get replaced when the transmission gets replaced? What about the master cylinder? Should that be replaced too when replacing a transmission? Aside from the tranny, gear oil and csc, anything else required?

Thanks!

The csc is outside of the case however in the bell housing attached to the input shaft on the outside. On the second diagram, you will see a circular object with blurry number 306A on the upper left side of the picture above the transmission layout

It is such a crappy setup cause they decided to make it an all in one piece with the throwout bearing