OEM Part Number: F1-100-1648-001-B, F11001648001B, PAB-907-275, PAB907275, 13M1179CP, 314818, 5Q0907275, 5Q0907275B, 5Q0998270, 5Q0998270B Alternative Part Number: 550-1918, 9A7-907-275-02, 9A790727502, RDE017, RDE018, RDE047
The TREAD (Transportation Recall Enhancement, Accountability and Documentation) Act requires that 100% of all passenger cars, light trucks, and buses manufactured in the United States after September 2007 be equipped with a tire pressure monitoring system.
Vehicles must be equipped with:
A tire pressure monitor in all four tires
A system that operates when the vehicle is on and warns the driver when tires are under-inflated by 25% or more.
A system that alerts the driver of a tire pressure monitoring system malfunction
A TPMS warning light that stays on until tire pressure has been inflated to vehicle specifications
A "bulb check" of the TPMS warning light on the instrument panel that blinks when the ignition is turned on
Vehicle owner's manuals that contain warnings about incompatible replacement tires for the vehicle
Huf / BHSens Valve
If installing GEN2 RDV021 valve: The valve nut has an internal washer that breaks away when 12in.lbs. of torque is achieved. Once the internal washer breaks away, the valve sleeve can be tightened down to its proper torque spec.
**Huf, Schrader, and major organizations including the Tire Industry Association, recommend the TPMS service kit be replaced every time a tire is serviced.
I bought these for my winter wheels with winter tires on my 2010 997.2 C4S. They worked fine... for two seasons. Just last week I swapped my wheels for season 3 and...1. One of them doesn't even read.2. The other 3 show a pressure of -7 PSI.Naturally, my car is freaking out that I have flat tires (which I of course don't).Two seasons with these is pure ridiculousness.
