{"id":2014,"date":"2011-02-08T22:57:14","date_gmt":"2011-02-08T21:57:14","guid":{"rendered":"http:\/\/mukerji.co.uk\/?p=2014"},"modified":"2011-02-08T22:57:14","modified_gmt":"2011-02-08T21:57:14","slug":"330d-brake-upgrade-floating-and-drilled","status":"publish","type":"post","link":"https:\/\/www.mukerji.co.uk\/330d-brake-upgrade-floating-and-drilled\/","title":{"rendered":"330d brake upgrade &#8211; floating and drilled!"},"content":{"rendered":"<p>Unless this is the first sentence of mine you&#8217;ve ever read you&#8217;ll know that despite being a BMW fan-boy, I am eternally disappointed by their brakes. It&#8217;s not that they don&#8217;t stop well enough, or that they overheat, it&#8217;s that the discs warp, and that happens well before the pads are so much as half worn. It was an ongoing problem with my E36 M3s, it was an issue with my E36 328i (until I upgraded to drilled discs) and with this 330d, the situation has been chronic. Here are relevant excerpts from my <a href=\"http:\/\/mukerji.co.uk\/cars\/2002-e46-330d-sport-touring\/\" target=\"_blank\">330d maintenance list<\/a>:<\/p>\n<ul>\n<li>26\/09\/2010 \u2013 front discs replaced (warped)<\/li>\n<li>11\/06\/2010 \u2013\u00a0<a href=\"http:\/\/mukerji.co.uk\/2010\/06\/11\/e46-330d-rear-brakes-overhaul\/\">rear discs &amp; pads replaced<\/a><\/li>\n<li>11\/06\/2010 \u2013\u00a0<a href=\"http:\/\/mukerji.co.uk\/2010\/06\/11\/e46-330d-rear-brakes-overhaul\/\">rear right caliper replaced<\/a><\/li>\n<li>25\/10\/2009 \u2013 Front nearside caliper replaced<\/li>\n<li>24\/10\/2009 \u2013 Front discs &amp; pads replaced<\/li>\n<li>27\/09\/2008 \u2013 Rear brake pads and sensor replaced<\/li>\n<li>18\/08\/2007 \u2013 Front brake discs replaced (warped)<\/li>\n<li>24\/03\/2007 \u2013 Front discs and pads replaced<\/li>\n<li>01\/04\/2006 \u2013 Front discs &amp; pads replaced<\/li>\n<\/ul>\n<p>We got the car in March 2006, so in 5 years and 50,000 miles, including today&#8217;s episode, I&#8217;ve replaced the front rotors 6 times. Good going, eh? In the past I started replacing with genuine BMW items, then as the tedium set in, I reverted to ECP&#8217;s finest. This time, thanks in part to advice from Jim Marren, I&#8217;ve &#8220;invested&#8221; in BMW&#8217;s new drilled and floating disc offering for the 330d. So this morning, I set about the replacement job. Before &#8211; standard massive rotors:<\/p>\n<p><a rel=\"attachment wp-att-2015\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0004-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2015\" title=\"DSC_0004\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0004-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0004.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0004.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0004.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>Up we go &#8211; by now an all too familiar pose:<\/p>\n<p><a rel=\"attachment wp-att-2016\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0005-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2016\" title=\"DSC_0005\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0005-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0005.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0005.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0005.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>Wheel off:<\/p>\n<p><a rel=\"attachment wp-att-2017\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0006-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2017\" title=\"DSC_0006\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0006-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0006.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0006.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0006.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>Caliper off:<\/p>\n<p><a rel=\"attachment wp-att-2018\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0007-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2018\" title=\"DSC_0007\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0007-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0007.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0007.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0007.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>Carrier and disc off:<\/p>\n<p><a rel=\"attachment wp-att-2019\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0008-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2019\" title=\"DSC_0008\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0008-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0008.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0008.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0008.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>On the near side (the side that seems to warp worst), I&#8217;ve elected to also replace the caliper as I suspect it of sticking (it is nearly 14 months old now after all). ECP offer a Pagid refurbished item for only \u00a397.20 if you give them your old unit, so I taped up the hose and nipped into town to make the purchase.<\/p>\n<p><a rel=\"attachment wp-att-2020\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0009-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2020\" title=\"DSC_0009\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0009-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0009.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0009.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0009.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>Now we get to the good bit. How&#8217;s about this then for a bit of bling brakey-brakey action?<\/p>\n<p><a rel=\"attachment wp-att-2023\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0012-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2023\" title=\"DSC_0012\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0012-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0012.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0012.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0012.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p><a rel=\"attachment wp-att-2024\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0013-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2024\" title=\"DSC_0013\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0013-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0013.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0013.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0013.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p><a rel=\"attachment wp-att-2025\" href=\"http:\/\/mukerji.co.uk\/2011\/02\/08\/330d-brake-upgrade-floating-and-drilled\/dsc_0014-3\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2025\" title=\"DSC_0014\" src=\"https:\/\/i0.wp.com\/mukerji.s3.amazonaws.com\/wp-content\/uploads\/2011\/02\/DSC_0014-800x535.jpg?resize=800%2C535&#038;ssl=1\" alt=\"\" width=\"800\" height=\"535\" srcset=\"https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0014.jpg 800w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0014.jpg 300w, https:\/\/cloud.mukerji.co.uk\/wp-content\/uploads\/2011\/02\/DSC_0014.jpg 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>So, what are they?<\/p>\n<p>They are obviously drilled, but they are also &#8220;floating&#8221;, which means the outer disc part (that comes into contact with the pads) isn&#8217;t the same piece that the wheel is clamped to on the hub &#8211; the two different materials are connected by a series of &#8220;bobbins&#8221; that reduce heat transfer and permit some adjustment as the disc changes shape subtly with temperature. This is supposed to reduce the chances of warping. The drilled holes help with heat dissipation, removing gases that are created under braking, and even stopping a film of water developing on the disc surface in wet weather.<\/p>\n<p>My E36 M3 Evos has floating discs; their brakes warped all the time. However, I fitted drilled discs to my 328i and the brakes were just lovely from that point on, so here&#8217;s hoping! Final information about the discs:<\/p>\n<p>B34.11.2.282.871 &#8211; left disc &#8211; \u00a3144.17 + VAT<br \/>\nB34.11.2.282.872 &#8211; right disc &#8211; \u00a3144.17 + VAT<\/p>\n<p>Pricey. Time will tell if they&#8217;re worth it!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Unless this is the first sentence of mine you&#8217;ve ever read you&#8217;ll know that despite being a BMW fan-boy, I am eternally disappointed by their brakes. It&#8217;s not that they don&#8217;t stop well enough, or that they overheat, it&#8217;s that the discs warp, and that happens well before the pads are so much as half&nbsp;[&hellip;] &nbsp;<a href=\"https:\/\/www.mukerji.co.uk\/330d-brake-upgrade-floating-and-drilled\/\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/posts\/2014"}],"collection":[{"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/comments?post=2014"}],"version-history":[{"count":8,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/posts\/2014\/revisions"}],"predecessor-version":[{"id":2036,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/posts\/2014\/revisions\/2036"}],"wp:attachment":[{"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/media?parent=2014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/categories?post=2014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mukerji.co.uk\/wp-json\/wp\/v2\/tags?post=2014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}