I'm strongly considering upgrading my 17" Sport package wheels to the 18" AMG wheel. My questions is: Do I need to consider anything since I also have the MB Tire Pressure Monitoring option. Is this options "swapable" to the new wheel? Does the wheel size change matter? How is the PSI monitoring device attached to the wheel? Any help appreciated.... Mark

MB uses the Beru TPMS which is part of the valve stem which can be removed from your OE wheels and bolted into most other wheels ....