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Old Sep 26, 2011 | 07:19 AM
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I will be taking delivery on my Prestige A7 with the 20" Sport Package in another 5 weeks or so and am in the process of exploring a winter tire package. I have read a few conflicting articles regarding the TPMS in the A7. Some articles say that Audi only uses Direct TPMS (a sensor in each wheel) and others say that it uses Indirect TPMS (no sensors - ABS rotational wheel speed). Does anyone know for sure if the A7 requires sensors in each wheel?

Thanks.
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Old Sep 26, 2011 | 08:29 AM
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Originally Posted by masonL
I will be taking delivery on my Prestige A7 with the 20" Sport Package in another 5 weeks or so and am in the process of exploring a winter tire package. I have read a few conflicting articles regarding the TPMS in the A7. Some articles say that Audi only uses Direct TPMS (a sensor in each wheel) and others say that it uses Indirect TPMS (no sensors - ABS rotational wheel speed). Does anyone know for sure if the A7 requires sensors in each wheel?

Thanks.
My old A4 had TPMS, with a sensor built into each tyre valve. On my A7 there is no similar TPMS built into each valve so can only assume that Audi has moved towards offering the indirect TPMS instead. Probably cheaper and less complicated for them to offer it this way to be honest.
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Old Sep 26, 2011 | 08:43 AM
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Thanks for the info.
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Old Sep 26, 2011 | 09:58 AM
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Mason, sensor-equipped wheels will have an aluminum valve stem.

Sensor-less wheels have a black rubber valve stem.
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Old Sep 26, 2011 | 10:11 AM
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Thanks uberwgn. Unfortunately, I can't check until my car arrives in early November. I had hoped to order a winter tire package before that.
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Old Sep 26, 2011 | 10:40 AM
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I understand. I'm hoping someone can make the effort to look at their A7 and see if it has rubber valve stems (which it will).
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Old Sep 26, 2011 | 11:43 AM
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Ok - thanks.
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Old Sep 27, 2011 | 08:10 AM
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My A7 definitely has black rubber valves and I'm 99% sure that TPMS works off the ABS system, not a sensor in the wheel.
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Old Sep 27, 2011 | 08:43 AM
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Thank you for clarifying, Michael.

(I hate the sensor-based system on our '06 car. It's such a PIA in terms of winter wheels.

Some of the guys have figured out how to disable the sensor-based system and enable the indirect (sensorless) system. I suspect this will be posible ONLY on much newer cars. I'm going to have a look at the interface on our '06, but am quite doubtful going in.)
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Old Sep 27, 2011 | 09:00 AM
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Thanks for your help guys.
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