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      10-24-2019, 09:49 AM   #11
philipm785
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Drives: 2016 550i
Join Date: Jul 2015
Location: Atlanta, GA

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Quote:
Originally Posted by bendandthrow View Post
From the replies so far it seems there is probably a frequency incompatibility. Does the resolution involve a change within the car or within each of the wheel/tyres?

After this Winter I expect the Winter tyres will be worn out. Rather than revert to my old 19" wheels and tyres I will probably buy new tyres for the 18" wheels as I want the extra comfort the deeper tyres will hopefully give. So is that the best time to fix this this issue?

Do any UK readers know if TPMS is a MOT failure item?

PS - If I can get this sorted I will almost certainly never use my old 19" wheels again. I may keep them to help with resale of the car, but will probably end up selling them separately.
If you know you're not going to use the old rims again, the easiest change might be to move the sensors from the old wheels to the new ones. The sensors are connected to the valve stems and sit inside the rim, so the tyres need to be removed in order to switch them out.
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