Dealer replaced my faulty slave and master cylinder - 9k miles.

 

cars going in again Monday, clutch has zero resistance until half way, grabs right away once released...sounds similar.

 

Got the slave and the fluid reservoir replaced under warranty two months ago as well. car had 4800 miles on it.
glad you got your issue worked out.

 

I am concerned that the clutch slave cylinder has some type of design defect. My car has 22K miles and the slave cylinder has been replaced twice within the past nine months due to loss of boost (clutch pedal very hard to depress).

 

There was a batch of clutch slave cylinders that did have issues. I believe around 1,200 987 model cars were effected. This was addressed by Workshop Campaign W-802. You can have your dealership's service department check your VIN to see if your car is effected, and if so, they will replace the Slave cylinder with a known good unit.

It surprises me that you had the problem twice, because the effected parts were, as far as I know, removed from inventory and replaced. I am very familiar with this defect because it effected my car with only 107 km on the odometer, in Germany, during my tourist delivery. My slave was replaced at the factory, but this was before they had isolated the issue and before they addressed it with the part manufacturers (largely due to my experience which got a lot of attention). So, once W-802 was in place, my dealer in the USA replaced my slave cylinder again just to be safe, though there was no problem with it. My car has about 22,000 miles on it now, trouble free miles I should say.

You say your clutch has experienced a 'loss of boost'. The hydraulic clutch system in our cars is not boosted, like our power brakes are. There is no way to loose boost. If your pedal is intermitently hard, then there is a mechanical problem, more likely with the master cylinder. It sounds to me like they changed the wrong part.

 

I think its BS Porsche waited until the customer complains via part failure vs. sending me a notice I have a bad one and come in for replacement. Sheer luck this happened 3 blocks away from my home.

 

Got my car back, no leak, ,just no fluid. No idea where the fluid went, was fine for 11,000m otherwise. Reservoir is the one under the bonnet near the water reservoir.

Thoughts?

 

If your car was one of the known effected cars, you would have been called in the same way I was.

How are your brakes? The fluid resivior is the shared between the braking system and the clutch hydraulics. Have you bled your brakes? Are your pads real low? If so, this would explain the loss of fluid. Otherwise, there is a leak, it just hasn't been found.

 

Service guy said they dont have a list of vins with effected parts, I asked when I picked it up.

Brake pads are good, they feel great, no noticeable difference or changes. Never had them bled. No leaks on tiled garage floor or under bonnet or on top of the under panels - tech was scratching his head.

 

I had the same issue. The fluids just leaked away. When the car was put on a lift, you could see the trace on the undertray. This was when it was brand new. Had it covered under warranty and had no issues since.

 

This is a post I found in a different forum. I can't vouch for it, but the source is reliable.

 

interesting.....if it happens again I will put more pressure on my service advisor.

 

I had my slave cylinder repalced as well about 6 months ago. It is good as new now!