{"id":9956,"date":"2026-10-03T21:00:00","date_gmt":"2026-10-03T12:00:00","guid":{"rendered":"https:\/\/everinterest.net\/en\/?p=9956"},"modified":"2026-10-03T08:38:06","modified_gmt":"2026-10-02T23:38:06","slug":"bmw-x3-f25-aliexpress-solar-tpms","status":"publish","type":"post","link":"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/","title":{"rendered":"I Fitted a Cheap Solar AliExpress TPMS to My BMW X3 (F25)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">I swapped my BMW X3 (F25) over to its winter tyres the other day. While the wheels were already on my mind, I fitted an AliExpress TPMS I had bought to try out. Here is how the first ten days went.<\/p>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#What_a_TPMS_does\" >What a TPMS does<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#The_AliExpress_TPMS_I_bought\" >The AliExpress TPMS I bought<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Fitting_it_to_the_car\" >Fitting it to the car<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Sensors_on_the_tyre_valves\" >Sensors on the tyre valves<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#The_display_sits_on_the_dashboard\" >The display sits on the dashboard<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#First_impressions\" >First impressions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#How_it_looks\" >How it looks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#How_it_works_day_to_day\" >How it works day to day<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#What_bugs_me\" >What bugs me<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Setting_the_alarm_threshold\" >Setting the alarm threshold<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Topping_up_the_air\" >Topping up the air<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Does_it_affect_the_drive\" >Does it affect the drive?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/everinterest.net\/en\/bmw-x3-f25-aliexpress-solar-tpms\/#Would_I_recommend_an_AliExpress_TPMS\" >Would I recommend an AliExpress TPMS?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_a_TPMS_does\"><\/span>What a TPMS does<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">TPMS stands for <a href=\"https:\/\/en.wikipedia.org\/wiki\/Tire-pressure_monitoring_system\" target=\"_blank\" rel=\"noopener noreferrer\">Tire Pressure Monitoring System<\/a>. It watches the pressure in each tyre and warns the driver when something is off. More and more premium cars come with one from the factory.<\/p>\n\n\n<p class=\"wp-block-paragraph\">The basic idea:<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li>A transmitter on (or built into) each valve measures pressure plus temperature directly inside the tyre<\/li>\n<li>The readings go to a receiver in the car, shown on a monitor or warning light for the driver<\/li>\n<li>It keeps an eye out for punctures, overheating and other tyre problems all the time<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_AliExpress_TPMS_I_bought\"><\/span>The AliExpress TPMS I bought<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">The kit I bought for the F25 cost under \u00a52,000 (about $13) on AliExpress, shipping included.<\/p>\n\n\n<div style=\"text-align:center;\">\n<a href=\"https:\/\/s.click.aliexpress.com\/e\/_DmcuD0N\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/aliexpress-solar-tpms.jpg\" alt=\"Solar-powered TPMS with four valve-cap sensors on AliExpress\" \/><\/a><br>\n<a href=\"https:\/\/s.click.aliexpress.com\/e\/_DmcuD0N\" target=\"_blank\" rel=\"nofollow noopener\">View on AliExpress<\/a>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">The display charges itself from a small solar panel, so it needs no power lead. The sensors are external ones that screw on in place of the valve caps.<\/p>\n\n\n<p class=\"wp-block-paragraph\">A USB charging cable came in the box too. If your car lives outdoors like mine, though, it seems to manage fine on solar alone.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Similar kits are sold on Amazon Japan, but they cost more than on AliExpress.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fitting_it_to_the_car\"><\/span>Fitting it to the car<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">Right after the winter tyre swap, I fitted the TPMS I had waiting.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sensors_on_the_tyre_valves\"><\/span>Sensors on the tyre valves<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">Each sensor goes onto a tyre valve, where you would normally attach an air pump.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"401\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensors.jpg\" alt=\"The four TPMS sensors, each marked with its wheel position\" class=\"wp-image-9832\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensors.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensors-300x267.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>Each sensor is marked with the wheel it belongs on.<\/em><\/p>\n\n\n<p class=\"wp-block-paragraph\">Take off the original valve cap, slip the anti-rotation lock ring on first, then screw on the sensor for that wheel position. You will not need the original caps anymore. I put mine away somewhere safe.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"373\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-bulblock.jpg\" alt=\"The lock ring threaded onto the valve stem\" class=\"wp-image-9829\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-bulblock.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-bulblock-300x249.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>Original cap off, lock ring on first.<\/em><\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"377\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensor.jpg\" alt=\"The TPMS sensor screwed on in place of the valve cap\" class=\"wp-image-9831\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensor.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-sensor-300x251.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>The external sensor goes on where the cap used to be.<\/em><\/p>\n\n\n<p class=\"wp-block-paragraph\">These sensors read the pressure directly, so if you fumble while screwing one on, you get a hiss of escaping air.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Once it is on, though, nothing leaks. I hand-tightened the lock ring up against the sensor, and after that I could not remove the sensor by hand.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_display_sits_on_the_dashboard\"><\/span>The display sits on the dashboard<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">With all four sensors fitted, I switched the display on. After a while, readings for each tyre started to appear.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"323\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-1.jpg\" alt=\"The TPMS display on the dashboard showing all four tyres\" class=\"wp-image-9828\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-1.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-1-300x215.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>It took about 15 minutes before all four wheels showed up.<\/em><\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"First_impressions\"><\/span>First impressions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">An English manual was included, but I worked out the settings just by poking at the buttons.<\/p>\n\n\n<p class=\"wp-block-paragraph\">You can set the warning thresholds. To begin with, I set the high alarm at 3.0 bar. I set the low alarm at 2.1 bar.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_it_looks\"><\/span>How it looks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">The sensors are bigger than normal valve caps, so they look a bit clunky. On darker wheels the black sensors hardly stand out, so it does not bother me.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"384\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-look.jpg\" alt=\"A TPMS sensor on the valve, noticeably larger than a normal cap\" class=\"wp-image-9830\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-look.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-look-300x256.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>That is the sensor. Quite a bit bigger than a standard cap.<\/em><\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_it_works_day_to_day\"><\/span>How it works day to day<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">The display on the dashboard refreshes each wheel roughly every 10 minutes.<\/p>\n\n\n<p class=\"wp-block-paragraph\">It seems to switch itself on when it feels the car vibrating, and the screen goes dark while the car is parked.<\/p>\n\n\n<p class=\"wp-block-paragraph\">As soon as you drive off, or touch the unit, it lights up with pressure plus temperature for every wheel. In use it feels completely natural.<\/p>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_bugs_me\"><\/span>What bugs me<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<p class=\"wp-block-paragraph\">Because each wheel only refreshes every 10 minutes or so, the readings can look out of step for a while when temperatures change quickly.<\/p>\n\n\n<p class=\"wp-block-paragraph\">This is most obvious after the car has been parked for a bit. Each tyre changes as its own new reading arrives, so the four numbers look oddly mismatched until all of them have refreshed.<\/p>\n\n\n<p class=\"wp-block-paragraph\">I expect I will get used to it. If nothing else, it showed me how much tyre temperatures really swing.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Setting_the_alarm_threshold\"><\/span>Setting the alarm threshold<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">After the winter tyre swap I set the pressures to 2.8 bar. Then, after a daytime run on the expressway, one tyre climbed to 3.0 bar. The unit went &#8220;beep beep beep.&#8221;<\/p>\n\n\n<p class=\"wp-block-paragraph\">I had the high-pressure alarm set at 3.0 bar. Pressure seems to move by around 0.3 bar with temperature changes while driving. So I have now raised it to 3.2 bar.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"393\" src=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-working.jpg\" alt=\"The TPMS display reading 2.8 bar on each tyre\" class=\"wp-image-9833\" srcset=\"https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-working.jpg 450w, https:\/\/everinterest.net\/en\/wp-content\/uploads\/2026\/10\/f25-tpms-working-300x262.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n<p class=\"wp-block-paragraph\"><em>I run 2.8 bar cold, for fuel economy.<\/em><\/p>\n\n\n<p class=\"wp-block-paragraph\">At least I now know the alarm really does sound.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topping_up_the_air\"><\/span>Topping up the air<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">To add air, you have to take the sensor off, which needs the small spanner supplied with the kit to turn the lock ring.<\/p>\n\n\n<p class=\"wp-block-paragraph\">After doing one wheel, I did not find it much of a hassle. I only check pressures every month or two, so taking the sensors off then should be no bother.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Once you are used to it, it is easy. You just need to keep that spanner in the car.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Does_it_affect_the_drive\"><\/span>Does it affect the drive?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">Each tyre now carries a sensor that is heavier than a normal valve cap, so the wheel balance must be slightly off. So far I have not felt anything odd while driving.<\/p>\n\n\n<p class=\"wp-block-paragraph\">The benefit of spotting abnormal pressure straight away seems far bigger.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Would_I_recommend_an_AliExpress_TPMS\"><\/span>Would I recommend an AliExpress TPMS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\">If someone asked me whether to buy an aftermarket TPMS, I would say I do not know yet.<\/p>\n\n\n<p class=\"wp-block-paragraph\">If it keeps working without problems for at least six months, until the next tyre swap, then I think I can recommend it.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Ten days in, the display runs on solar with no wiring, the sensors read properly, and there are no air leaks. So far, so good.<\/p>\n\n\n<p class=\"wp-block-paragraph\">I will keep an eye on it for a while. If you are curious about an aftermarket TPMS, even a cheap one like this works properly, so it may be worth a try.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><em>This article is also available in <a href=\"https:\/\/everinterest.net\/f25-tpms-202411\/\" target=\"_blank\" rel=\"noopener noreferrer\">Japanese<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I fitted a solar AliExpress TPMS costing under \u00a52,000 to my BMW X3 (F25). Valve-cap sensors, no wiring, fresh readings every 10 minutes. My first 10 days.<\/p>\n","protected":false},"author":1,"featured_media":9834,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8],"tags":[695,10,1964,311,11,1954,2053,2017,2015],"class_list":["post-9956","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bmw-x3-f25","tag-aliexpress","tag-bmw","tag-bmw-x3","tag-diy","tag-f25","tag-high-mileage","tag-tpms","tag-tyre-pressure","tag-winter-tyres"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AliExpress TPMS on a BMW X3 (F25): Solar, No Wiring<\/title>\n<meta name=\"description\" content=\"I fitted a solar AliExpress TPMS costing under \u00a52,000 to my BMW X3 (F25). 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