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cmos

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About cmos

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  • Gender
    Male

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  • From
    Dallas, TX
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    MY16 GT4
  • Future cars
    n.a.. GT4 is IT.
  • Former cars
    '84 dp targa, '85 targa, '89 944, '01 986, '03 986, '06 997 C4, '16 GT4

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  1. Just went through this, also on a 2001. I got the double-beep a few seconds after locking and then the car unlocked itself again. Sometimes this happened spontaneously (during driving or sitting in the garage). Beep-beep. Tore into both doors, ohmed out the connections, checked the module under the driver's seat (thinking it might have gotten wet at some point). Nothing. Still beep-beep. Finally, I started disassembling the door lock modules (the part you think might work from the Passat). These are fairly easy to take apart and put back together. It turned out that one of the two spring operated clutch-bolts at the end of the DC motor that operates the latching mechanism was stuck. Something had gotten caught in there. A drop of oil after wiggling it free is all it took. Car locks fine again. It took some time to find -- and a trip to the dealer to get door panel clips, as the old ones were brittle.
  2. You have heard of the Cold Air Intake, red silicon hose modifications for better sound. This works by removing the intake sound dampening Helmholtz resonator from the air path. It's particularly effective on the standard 997 as it does not have the 997-S vacuum flap at the entrance to the resonator to cut it off for sportier sound. See here for the details on a 997-S: http://www.youtube.c...?v=A5dUpmu85Mk. You can achieve the same exact effect on the standard 997 without installing the ugly, red, expensive silicon rubber hose by inserting the cap of a Castrol Syntec Oil into the resonator opening. Use the 5W-40 as it is on the Porsche approved list and you can do this after your next oil change. Simply remove the rubber air hose (via loosening the clamps and pulling it off), insert the cap (top down, this is the only way it will fit), and re-attach the hose. Make sure you take the paper seal out of the cap (!), and use only the plastic portion. This is an exact, snug fit, and the cap has a lip that prevents it from moving into the air box over time. Similarly, when the hose is re-attached, the cap will be held in place by a lip in the hose, so there is no danger for it moving towards the air stream over time either. The pictures below should make it obvious.
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