I have a 2003 BMW Z4 3.5i (E85). This is my 3rd winter with the car, and it has about 72K miles on it now (only had 14.5K miles when I got it). I have never had any problem with the car yet. Today it is 0\u00b0F\/-17\u00b0C in Chicago.
\nI went out to my car and started it this morning to let it warm up for about 10 minutes while I got a few things together for work (I don’t normally warm it up).
\nWhen I came back and got in the car the interior temperature okay, and the heat blowing on high setting was only medium-warm.
\nThe coolant temperature gauge needle was pinned to the right (red hot zone) and the red warning light was flashing, so I immediately shut off the car. The radiator cap never blew off and there was no coolant anywhere on the ground.
\nDo you think I have a defective sensor, a bad thermostat, or a dead fan?
\nI wanted to check under the hood but it was frozen shut.<\/p>\n","protected":false},"excerpt":{"rendered":"
I have a 2003 BMW Z4 3.5i (E85). This is my 3rd winter with the car, and it has about 72K miles on it now (only had 14.5K miles when I got it). I have never had any problem with the car yet. Today it is 0\u00b0F\/-17\u00b0C in Chicago. I went out to my car… Read More »2003 BMW Z4 3.5i<\/span><\/a><\/p>\n","protected":false},"author":9152,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1,156],"tags":[489,9403,9402],"class_list":["post-19218","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-bmw","tag-coolant","tag-over-heating","tag-z4"],"_links":{"self":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/19218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/users\/9152"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/comments?post=19218"}],"version-history":[{"count":0,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/19218\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/media?parent=19218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/categories?post=19218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/tags?post=19218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}