So going to need to replace tires soon. Car is 7 years old now. Wondering if there is any maintenance I should be doing to the TPMS Sensors when they change out the tires? Battery change for instance, and if so, where do I source these batteries?

I'm assuming the Valve stems do NOT get replaced during general tire changes, as they are integral to the sensor? I see replacement Stems are available online, but do they should to be routinely changed when tires are changed?

Please share your experience, thanks!

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~Scott

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Black Sapphire Metallic/Sand Beige '13 E70 35d, SP, NAV, Tech, Comfort Access/Seats
20" Style 214's Wrapped in Continental DWS06 Extreme Contacts

(SOLD) Alpine White/Sand Beige '06 E53 3.0, SP, PP, CC, RC, NAV, Sat Radio
19" Style 63's Wrapped in Bridgestone Dueler HP Sports-- Summer Shoes
18" Style 131's Wrapped in 255/55-18 Nokian WRG2 SUV's -- Winter Boots