Originally Posted by
Macky
i had the same problem when I put the TPMS on my 2012 on the BBS SE wheels. the problem is not how they mount it, but the rubber gasket gets crushed during the original install on the original wheels.
it is the black trim around the valve stem. when they reinstall it, the tire shop has to include what they call a TPMS rebuild kit. essentiall its a set of 4 of these rubber and metal (inner) rings that fit around the TPMS valve stem. this is what keeps a seal.
I had three shops botch that until a Firestone tire shop was able to tell me straight up what was needed. there was no need to rebalance. they just deflated the tire enough to gain access to the TPMS sensor already mounted on the rim. they removed it, put the new rubber grommet/seal and re-inflated the tire back up. it was on my car for almost 3 years until i wore out the tires.