Another CSC failure?

CBRich

Subscribing because my car just started doing the same thing. Is there a possibility that the extreme temperatures lately could have created or amplified an issue? I know mine began after a 6 hour road trip in 105 degree weather.

OKC Z

I think you might have something there. My pedal gets really sticky coming back on 90° + weather.

cheshirecat

Yes. The hotter the ambient temperature, the higher the chances of your clutch fluid temperature going over it's rated temp and losing its hydraulic properties. You'll find that these clutch issues tend to manifest during the hotter months if it's related to the clutch fluid itself. It happens every year for both the 350 and 370.

Once clutch fluid gets too hot, it will boil, which creates air in the line. The air compresses, which causes the hydraulics to fail.

All my car needed was one hard run during the summer to cook the stock clutch fluid. I remember exactly when it happened. Once that was done, the pedal was never the same.

Once I bled it out with some RBF600 and changed out the rubber clutch hose with the stainless one from Z1, it was perfect. Pain in the *** to bleed out all the air, but definitely worth it.

Please note that this will make no difference if your CSC is failing.