Option 482 - TPMS can now be ordered.
#16
Originally Posted by 996ttcab
TPMS shows up under tach as a readout of each tires pressure, .
#17
Originally Posted by 1080iAddict
v.. A frucking bolt is embedded in my tire and there is a very VERY slow leak. The TPMS was able to read that very slow leak when, to the naked eye, the tire was absolutely perfect.
I seriously doubt the TPMS "reads" a slow leak. That's not how these things work. They respond to changes in tire pressure from the point at which they were calibrated. So if there's a slow leak you won't know of it until the thresh-hold drop in pressure has been exceeded. This may take several days. Had you had an actual tire pressure read-out you could have seen the gradual fall in pressure and, perhaps, inspected the tire more carefully. At least that's how it works on my Benz.
#18
Three Wheelin'
The display in the tach shows tire pressures. Take a look at the brochure and you can see it in some shots of the instruments and dash. Wish it had been available when I ordered mine...
I wonder what happens when you change from summer wheels and tires to winter wheels and tires. Where are the sensors? Do you need a second set for your winter setup?
I wonder what happens when you change from summer wheels and tires to winter wheels and tires. Where are the sensors? Do you need a second set for your winter setup?
#19
Burning Brakes
Originally Posted by boolala
I seriously doubt the TPMS "reads" a slow leak. That's not how these things work. They respond to changes in tire pressure from the point at which they were calibrated. So if there's a slow leak you won't know of it until the thresh-hold drop in pressure has been exceeded. This may take several days. Had you had an actual tire pressure read-out you could have seen the gradual fall in pressure and, perhaps, inspected the tire more carefully. At least that's how it works on my Benz.
Now, I do know that it will NOT read the very gradual, i.e., natural, change in pressures over a course of months caused by temperature, normal seepage, whatever, that requires the driver to monitor the pressure and add a smidget of air from time to time. If this is what you are referring to, you are 100% correct. However, TPMS will sense an embedded puncture that would otherwise take several weeks to deflate a tire.
cheers.
#20
Burning Brakes
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Originally Posted by 1080iAddict
That is Euros, right? So, 691.00 EUR = 875.816 USD United States Dollars? Sorry for the ignorance, but my computer does not even have that symbol!!!
I take it that the option will be $800 - $900.
Adam
I take it that the option will be $800 - $900.
Adam
#21
Race Car
I had TPMS on my E55 and it diplayed the pressure on all 4 wheels via a pictograph. Very very accurate and you can actually see the tire pressure go up as you drive (tires getting hotter). Maybe it will be the same for the 997 and the idiot light is only a secondary warning. I loved the TPMS on my E55, never got a flat, but gave a safety margin since my E55 didn't have a spare (early 04 model).
#22
Banned
I've heard that the TPMS on the Cayenne has been nothing but a PIA. My dealer tells me that many owners of Cayennes have had to bring them in because the system misreads pressures and basically shuts down the car because it "thinks" tire pressure is too low. Any Cayenne owners here with TPMS experience this? Maybe the system is set to be sensitive on SUVs, what with roll-over concerns and all. If Porsche has indeed perfected their TPMS then this would be for me a must have option. The more monitoring of vital information the better, but only if it works accurately and reliably.
#24
Burning Brakes
Originally Posted by OCBen
I've heard that the TPMS on the Cayenne has been nothing but a PIA. My dealer tells me that many owners of Cayennes have had to bring them in because the system misreads pressures and basically shuts down the car because it "thinks" tire pressure is too low. Any Cayenne owners here with TPMS experience this? Maybe the system is set to be sensitive on SUVs, what with roll-over concerns and all. If Porsche has indeed perfected their TPMS then this would be for me a must have option. The more monitoring of vital information the better, but only if it works accurately and reliably.
#25
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Why don't they develop something REALLY useful, like a digital readout on the dash that shows EXACTLY how many bugs are stuck to your 1) bumper, 2) left side mirror, 3) right side mirror, and 4) wind shield. Now THAT would be worth the price of admission!
Last edited by gota911; 05-15-2005 at 07:58 AM.
#26
Originally Posted by gota911
Why don't they develop something REALLY useful, like a digital readout on the dash that shows EXACTLY how many bugs are stuck to your 1) bumper, 2) left side mirror, 3) right side mirror, and 4)wind shield. Now THAT would be worth the price of admission!
You bring up an EXCELLENT point!
I'm looking at and have to live with a computer screen in the center console and Porsche nowadays thinks guys who buy their cars are TOTAL gadget freaks, right?
Well why don't they make that computer screen do something IMPORTANT like show engine diagnostics, outputs, faults etc. For example it would be really nice to see if i'm ACTUALLY getting premium gas when I pay for it by checking what teh valve timing is doing.
The service depts have all sorts of software to service the cars WHY can't I have THAT included in my outrageous $2000 (US) bill for the stupid NAV system module???
#27
Banned
Originally Posted by MMD
...Well why don't they make that computer screen do something IMPORTANT like show engine diagnostics, outputs, faults etc. For example it would be really nice to see if i'm ACTUALLY getting premium gas when I pay for it by checking what teh valve timing is doing.
The service depts have all sorts of software to service the cars WHY can't I have THAT included in my outrageous $2000 (US) bill for the stupid NAV system module???
The service depts have all sorts of software to service the cars WHY can't I have THAT included in my outrageous $2000 (US) bill for the stupid NAV system module???
#28
Intermediate
Originally Posted by 1080iAddict
...my M5 system did read the change in tire pressure due to this slow leak, when it was not apparent to the naked eye.
-Jim
#29
....."Well why don't they make that computer screen do something IMPORTANT like show engine diagnostics, outputs, faults etc. For example it would be really nice to see if i'm ACTUALLY getting premium gas when I pay for it by checking what teh valve timing is doing.
The service depts have all sorts of software to service the cars WHY can't I have THAT included in my outrageous $2000 (US) bill for the stupid NAV system module???...."
It's not like Porsche could say that it would make the PCM overly complicated, not user friendly, and have too many buttons.....after all they've already accomplished that!!!
The service depts have all sorts of software to service the cars WHY can't I have THAT included in my outrageous $2000 (US) bill for the stupid NAV system module???...."
It's not like Porsche could say that it would make the PCM overly complicated, not user friendly, and have too many buttons.....after all they've already accomplished that!!!
#30
Burning Brakes
Originally Posted by JimStrott
Do you mean that the tire didn't "look" flat, or that you'd been measuring the pressure and your gauge showed normal pressures?
-Jim
-Jim