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Hi guys, Seen on the picture there is a bolt and spring missing from the disc. Any idea where I will be able to buy one of these? Porsche says there is no separate part number for this and might suggest a hole new disc? Any help would be highly appreciated.
I am not sure about the Turbo but I seem to remember that for the Turbo S they used another metal for the cylinders, it is not aluminum.
I once had mine replaced - all worked fine. Would be VERY strange if you get 6 bad brand new PCM units in a row from Porsche. I think they each time transfer some settings from the old PCM unit to the new they install. Maybe these data are corrupt and they then fail the new unit. Perhaps you can ask them to setup the PCM unit manually.
I was in the same dilemma as you when I bought my car. The Turbo or Turbo S are fairly cheep due to the big cut they take compared to the GTS. But as I was told by 3 different Porsche dealers. If you come from a 911 and want some of the same driving qualities go with the GTS. I did and bought a GTS. Absolutely fantastic car with GREAT sound. The GTS is setup more like a sportscar where the Turbo is more like a limousine and great in that perspective.
I see your point - but again, I would not be afraid doing it, unless we are talking some kind of endurance race or a lot of track days for a long time. Remember to get them warm, before slamming the brakes. The highest tear on PCCB discs are actually when they are cold. Remember to go with fairly new pads. Porsche has always been known for making super and long lasting brakes, a few track days is not a problem for these cars.
Unless you have a plan showing up in some kind of endurance race with the car, I still don't see the point. The PCCB brakes can easily handle some races on a track now and then without tearing them down significantly. The discs are made to last very long, that is the hole idea more or less with the PCCB brakes and the price for pads are the same. But as Loren said - most likely you can do it.
Just curious- why do you wanna change from PCCB to normal steel brakes ?
There is a TSB out concerning faulty ground wiring. This can cause all kinds of warnings also. But as JFP says, start checking the alternator output. Look for an output of 14.0 volts or higher. Apply load from, lights and seat heating, etc. and make sure voltage does not drop down to much. You don't wanna see anything below 13.2 volt I would say.
I would hook it up next to the engine vacuum pump. So it is kind of parallel system to the engines system.
Welcome to the forum. As already said. This does not really sound like a "DIY" job. What sounds strange is that even with the engine off you say it starts to leak from the hole between engine and transmission.
I strongly doubt that your Infiniti or Mercedes have better brakes compared to the 996. Be course you feel that you need to push the pedal harder for it to brake is just becourse the brake amplifier is adjusted in a different way on the 996. If you wanna compare brake systems with each other, take the cars on a track and see how they handle when they get pushed to the limit.
Check rotors and pads. Use the Porsche OEM parts. Porsche is known for making some of the best brake systems. Worn out rotors and pads could give you the feeling of brake pressure you describe. See if you can get a look at the rotors from behind. It can be heavily corroded on one side even it looks good on the other.