How to fit tyre sensing valves to a BMW?

In 2011, I bought a 2010 BMW 520d touring and a set of extra alloy (327 style) 17 inch wheels with 225/55 R17 run-flat winter tyres. This year I traded the car in and bought a June 2014 320d xDrive Touring. I kept the winter wheels from the 5 series. I had a trial fit of the winter wheels & tyres on the 320d. They fitted fine and ran but the tyre pressure warning system is non-functional. I think the 5 series compared wheel rotation using the ABS system to detect a flat tyre while the 3 series actually measures and displays the pressure in each tyre using pressure sensing valves. BMW says I can't retrofit pressure sensing valves to these wheels and wants me to buy another set of wheels and winter tyres at £2000+. Can you recommend a company to fit pressure sensing valves, compatible with the BMW system, to my wheels?

Asked on 15 June 2015 by Roy Pentecost

Answered by Honest John
Sorry, that has confused me. I knew that the original BMW runflat system worked on rotation, but had no idea that they had changed the system for the F30 3 Series. There is a cheap valve sensor system called Tyrepal: www.tyrepal.co.uk/ Otherwise, these people can tell you what TPMS parts are compatible with what: www.tyresure-tpms.com/
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