battery draws dead, tpms (2004 Touareg)

On a 2004? Why? TPMS was not required back then.

-Uwe-

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Because in some states even though it wasn't Federally required as some may interpret until 2006 but I'd disagree, that state may still indeed require it & if it was equipped from the factory with it upon delivery.

In NY it works like this, if a car came with an auxiliary "safety item" such as rear wiper, passenger side mirror, rear defrost, fog lights, TPMS, etc..... it needs it for safety inspection & it can't be deleted.

In 2004 all VW Tow-rigs indeed did come with TPMS & it wasn't an option within the USA.

https://www.tiretraker.com/NationalSafetyActTPMS.pdf

The first part is contained in this document. It establishes a new Federal Motor Vehicle Safety Standard that requires the installation of tire pressure monitoring systems (TPMSs) that warn the driver when a tire is significantly under-inflated. The standard applies to passenger cars, trucks, multipurpose passenger vehicles, and buses with a gross vehicle weight rating of 10,000 pounds or less, except those vehicles with dual wheels on an axle.
This document establishes two compliance options for the short-term, for the period between November 1, 2003, and October 31, 2006

DATES:
This final rule is effective [insert date that is 30 days after publication in the Federal Register]. Under the rule, vehicles will be required to comply with the requirements of the standard according to a phase-in beginning on November 1, 2003

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