[bendandthrow]

The TPMS was working fine on my 19" wheels. I recently bought a 2 year old second hand set of BMW 18" wheels with Winter tyres, primarily because I wanted smaller wheels for comfort, but was happy to also get Winter tyres given its not October.

I had BMW replace my old wheels/tyres with the new wheels / tyres. Now I find the TPMS is no longer working. Each time I start the Reset process it runs for a while then reports a failure.

I called BMW and they said all 4 tyres needed to be at the same pressure for the system to work. I doubted this but I did as they suggested and set all 4 to 32psi. Still getting the fail message.

Was one or more TPM sensor damaged during the change of wheels? Or is some kind of recalibration needed when changing wheel size?

Any suggestions?

Thanks

Eric