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Message: <blockquote data-quote="KL2DC" data-source="post: 162926" data-attributes="member: 3452">Danc... There are no hardware involved with the Flat Tire Monitor System, its actually pretty low tech. FTM is a function of the car's DSC. As you recall, the DSC stabilizes your car by measuring yaw angles and rotational speed at each corner (slip) among other parameters. The FTM is takes advantage of DSC and monitors flat tire or low pressure by monitoring disrepancies in rotational speed. A flatter tire (our RFTs don't really run pancakge flat) would have a lower speed than the other 3 and the system will recognize that as a tire warning. Diligent reinitializations is a must to maintain the effectiveness of the system. You need to do an initilization every air pressure top up. Changing to non-rft wheels/tires combo does not compromise the FTM, as long as you do the proper initialization procedures. Its a very simple system, really. In the US, most of the electrical grumblings center around the i-drive which is prone to freezing etc. There were some isolated ICE malfunctions but pretty much most of the electrical issues were solved by updating to the latest version of Progman (software). You have to be honest with yourself, you should expect a little more issues to crop up with BMW ownership, its not nearly the appliances you may be used to, but the drive is worth it. Again, if you're buying this primarily for city driving, the 320i SE should suffice and 50k buys a lot of petrol. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" /></blockquote>

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