Clutch Slipping on stock A91 MT...

[lucky phil]

phil, use your brain. on this same page, page 42 of members conversing about their slipping/burnt clutches at stock power, people are sharing the ridiculous rates dealerships are charging for clutch replacements. the answer as to why there isn't a queue of supras is explained.. context clues context clues context clues context clues context clues context clues context clues context clues context clues context clues

Sorry I'll re contextualise. The sides of the highways and byways are littered with Supra Mk5 manuals with destroyed clutches on stock power. If you believe the internet that is.

Phil

Sponsored

 

[NitroYellowMKV]

Seriously? Like I drive past Toyota dealers and there's a cue of Supras in the workshop pulled apart for clutch replacement, lol. The internet!

Phil

Obviously there isn’t a line but I can give you 10 cars from this forum and personal clients of mine who had clutch failure on stock power cars, all at sub 15k miles- many under 5k- mine included, it’s enough that there is clearly something that was not done perfectly with the clutches on our cars.

 

[BananaBoi]

Obviously there isn’t a line but I can give you 10 cars from this forum and personal clients of mine who had clutch failure on stock power cars, all at sub 15k miles- many under 5k- mine included, it’s enough that there is clearly something that was not done perfectly with the clutches on our cars.

I had thought about a class action as well, but I don't have the time or energy to go through with it.

 

[BackToBlack]

Just curious, for those with a slipping/burnt clutch, did you ever notice any clicking or squeaking noise from your clutch pedal? Roll the windows up and turn off the music, you should easily hear it if it's there.

We have some owners (myself included) with the clutch pedal squeaks. But if the squeak actually comes from the clutch master, then it definitely can cause a clutch issue. Some G80 owners reported their clutch pedal noise boiled down to be a faulty master cylinder. I assume the Supra MT uses the same/similar parts.

https://g80.bimmerpost.com/forums/showthread.php?t=2026992


For now I'm just guessing what could be the cause to these early clutch failures. A faulty master cylinder that doesn't completely engage the clutch could easily burn the clutch out in no time.

 

[ColonelAdama]

Obviously there isn’t a line but I can give you 10 cars from this forum and personal clients of mine who had clutch failure on stock power cars, all at sub 15k miles- many under 5k- mine included, it’s enough that there is clearly something that was not done perfectly with the clutches on our cars.

Has anyone actually figured out what the failure mode is?

I still have zero slip on an early 2023 car that makes well over factory torque. Whereas on my GTI, as soon as I went above stock torque, the clutch was toast.

Seems like its not really a clutch material/clamp force issue like that car was. Like @BackToBlack said, more likely a bad batch component rather than inherent design flaw

 

[NitroYellowMKV]

Has anyone actually figured out what the failure mode is?

I still have zero slip on an early 2023 car that makes well over factory torque. Whereas on my GTI, as soon as I went above stock torque, the clutch was toast.

Seems like its not really a clutch material/clamp force issue like that car was. Like @BackToBlack said, more likely a bad batch component rather than inherent design flaw

that would be my guess, a bad batch of clutches/ master cylinders, etc. No way there would be an inherent design flaw with this high end of a product. ZF knows what they are doing. Bad batch is way more likely.

 

[swrdply400mrelay]

May have missed it but is this mostly for 2023 MY or it has been happening to 2024 MY?

 

[BackToBlack]

May have missed it but is this mostly for 2023 MY or it has been happening to 2024 MY?

Most I’ve seen reported were 2023’s

 

[FLtrackdays]

Has anyone actually figured out what the failure mode is?

I still have zero slip on an early 2023 car that makes well over factory torque. Whereas on my GTI, as soon as I went above stock torque, the clutch was toast.

Seems like its not really a clutch material/clamp force issue like that car was. Like @BackToBlack said, more likely a bad batch component rather than inherent design flaw

There was (and still is) a whole thread on how the car will stall or delay when accelerating into traffic. I’ve never had this happen or to anyone else I personally know who owns a Supra. But I believe it’s happened to these guys. Hopefully these clutch issues have been sorted out just like the mystery stalling.

 

[Spart]

I see y'all replying to phil and I gotta wonder why you just don't have him on your ignore list yet.

I'm sure he's in here gaslighting people but I can't see a damn thing he posts. It's great.

 

[FuzzyRev]

Most I’ve seen reported were 2023’s

EARLY production 2023 at that

 

[BMWAF]

I see y'all replying to phil and I gotta wonder why you just don't have him on your ignore list yet.

I'm sure he's in here gaslighting people but I can't see a damn thing he posts. It's great.

Imagine ignoring people simply because you disagree with their opinion. ? The snowflake is strong with this one.

EARLY production 2023 at that

Maybe we can narrow down the time-frame. MY23 here; February 23 build with 8000km on the clock: No issues thus far.

 

[BananaBoi]

EARLY production 2023 at that

Mine is built September of 2023. Maybe I just got unlucky lmao

On a separate note, can anyone confirm if the ClutchMasters hydraulic release bearing is worth the cost over a CDV delete?

 

[BMWAF]

Mine is built September of 2023.

Would this not make it a MY24? Or did you mean September 2022?

 

[lucky phil]

Mine is built September of 2023. Maybe I just got unlucky lmao

On a separate note, can anyone confirm if the ClutchMasters hydraulic release bearing is worth the cost over a CDV delete?

You want to remove the gearbox to fit it or are you doing the clutch as well? I'm a bit meh about internal clutch slave cylinders. They are subject to more heat, harder to bleed, and if you get a leaking seal then it's gearbox out time. Advantage? no pivot arm( which never really fail) and no clutch arm pivot point which never really give an issue either. Like many of the latest designs the real benefit is more to the manufacturer than the customer. The upside for the stock slave is easy access and replacement and no additional hydraulic plumbing for bleeding so less leak points.
Phil

Sponsored