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About hspder

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  • From
    Alameda, CA, USA
  • Porsche Club
  • Present cars
    2011 911 Turbo S Cab
    2014 Cayenne Turbo S
    2015 Macan Turbo
  1. Hi, Was this problem ever solved? Do you know what solved it? I've also taken the plunge on getting my maps updated on my 997.2 (that has the 6-disc changer), but what happens is that when it asks for DVD 2, it doesn't eject DVD 1... so I'm in the same limbo situation that you were (no maps), not because of corruption but because they can't figure out how to get DVD 1 ejected so they can load DVD 2. Any ideas?
  2. Hi guys, Well, I know there's at least half a dozen threads around here about speedometer errors -- many Porsche models have them. Case in point, my 2014 Cayenne Turbo S does show a speed that is 6% over the real speed; it's been established all Cayennes do that from factory, meaning it's clearly on purpose. I guess Porsche is trying to keep those insurance rates from exploding from speeding tickets. However many don't -- case in point, my 997.2 Turbo S is 100% accurate. So I decided to start a thread on the Macan's speedometer error, for those who are wondering if this model inherited the Cayenne's problem or if, given its positioning as a "sports car", Porsche decided to go with the real speed, like in the 997.2. The news is -- they went with the Cayenne strategy. My Macan does show a 6% error too. My extremely friendly dealer did try whatever they could to correct the issue, but, it seems to be built in to the programming of the speedometer display (analog and digitial) at least in the Macan, there's nowhere in PIWIS you can correct it. The only input in the PIWIS that is related to this is the tire size, but my Macan did have the correct tire size in, and even if we tweaked it a bit (essentially lying about the tire size in PIWIS), it wouldn't compensate for the 6% error. Note that the mileage counter is 100% precise -- so there's no negative implication on mileage measurements. This is particularly obvious in a test I did recently where, bu using the Cruise Control, I went for 30 minutes at a steady speed that was displayed in the speedometer as 70mph (and in my GPS as 66mph), but the onboard computer, when calculating the average based on miles/time, correctly showed my average speed as 66mph. They did put in a call to Porsche, I'll keep you guys posted on what the results are. I doubt they will tell the dealer how to fix it (I doubt there's a way other than flashing the on board computer) but I'm curious to see what they say. If you guys can share your experiences in this thread, it would be great -- there might be an off chance somebody will find a way to correct this...
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