{"id":3539,"date":"2026-09-29T05:43:50","date_gmt":"2026-09-29T05:43:50","guid":{"rendered":"https:\/\/shop.autoboss.com\/?post_type=product&#038;p=3539"},"modified":"2026-10-09T08:20:31","modified_gmt":"2026-10-09T08:20:31","slug":"autool-as506-automobile-brake-fluid-tester","status":"publish","type":"product","link":"https:\/\/autoboss.com\/de\/product\/autool-as506-automobile-brake-fluid-tester\/","title":{"rendered":"AUTOOL AS506 Boiling Point Brake Fluid Tester for DOT3\/DOT4\/DOT5.1"},"content":{"rendered":"<div class=\"abd-pd\" data-abd-version=\"1\">\n<header class=\"abd-hero\">\n<h3>Check Brake Fluid by Its Actual Boiling Point<\/h3>\n<p class=\"abd-lead\">The AS506 heats a 40\u201350 ml sample of brake fluid and reports its boiling point for comparison with the reference for the fluid in use. It runs from a 12 V vehicle battery and needs no disposable test strips.<\/p>\n<ul class=\"abd-facts\">\n<li>DOT3 \/ DOT4 \/ DOT5.1<\/li>\n<li>0\u2013320 \u00b0C<\/li>\n<li>About 16 s per Test<\/li>\n<li>14 Brand References<\/li>\n<li>12 V Battery Powered<\/li>\n<\/ul>\n<\/header>\n<section class=\"abd-sec\" id=\"abd-features\">\n<h4>Key Features<\/h4>\n<ol class=\"abd-features\">\n<li>\n<h5>Normal and Brand Modes<\/h5>\n<p>Select the fluid type directly, or choose one of the built-in brands and then its fluid type.<\/p>\n<\/li>\n<li>\n<h5>Live Test Progress<\/h5>\n<p>Hold the S button for about 16 seconds; the screen shows live fluid temperature and a progress bar until the result appears.<\/p>\n<\/li>\n<li>\n<h5>Dry and Wet References<\/h5>\n<p>Shows the official dry and wet boiling points for the selected fluid next to the measured result.<\/p>\n<\/li>\n<li>\n<h5>Prompted OLED Interface<\/h5>\n<p>The screen guides mode and fluid selection and shows supply voltage, test status and the final result.<\/p>\n<\/li>\n<li>\n<h5>Reusable Test Rod<\/h5>\n<p>No consumable test sticks are needed for routine testing.<\/p>\n<\/li>\n<li>\n<h5>Reverse Polarity Protection<\/h5>\n<p>Reduces risk when connecting the battery clamps.<\/p>\n<\/li>\n<\/ol>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-specs\">\n<h4>More Specifications<\/h4>\n<div class=\"abd-table-wrap\">\n<table class=\"abd-table abd-specs\">\n<tbody>\n<tr>\n<th scope=\"row\">DOT3 reference<\/th>\n<td>Dry 205 \u00b0C (401 \u00b0F), wet 140 \u00b0C (284 \u00b0F)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">DOT4 \/ DOT4+ reference<\/th>\n<td>Dry 230 \u00b0C (446 \u00b0F), wet 155 \u00b0C (311 \u00b0F)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">DOT5.1 reference<\/th>\n<td>Dry 270 \u00b0C (518 \u00b0F), wet 190 \u00b0C (374 \u00b0F)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">DOT5 reference<\/th>\n<td>Dry 260 \u00b0C (500 \u00b0F), wet 180 \u00b0C (356 \u00b0F); reference only, no DOT5 test mode<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Temperature units<\/th>\n<td>\u00b0C \/ \u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-box\">\n<h4>What&#8217;s in the Box<\/h4>\n<ul class=\"abd-box\">\n<li>AS506 tester with battery clamps<\/li>\n<li>Carrying case<\/li>\n<li>Sample beakers with 50 ml scale<\/li>\n<li>Injection sampler and hose<\/li>\n<li>User manual<\/li>\n<li>Retail box<\/li>\n<\/ul>\n<figure class=\"abd-fig\"><img decoding=\"async\" src=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/0e8743fafeeb8cfe80c2f6b1.webp\" alt=\"AUTOOL AS506 tester with battery clamps, carrying case, two sample beakers, syringe sampler with hose, retail box and user manual\" width=\"1200\" height=\"1200\" loading=\"lazy\"><figcaption>AS506 package contents.<\/figcaption><\/figure>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-use\">\n<h4>How to Use<\/h4>\n<ol class=\"abd-steps\">\n<li><b>Collect a sample<\/b><span>Use the sampler to fill the beaker above the 40 ml mark and no higher than 50 ml.<\/span><\/li>\n<li><b>Connect power<\/b><span>Red clamp to battery positive, black to negative; the tester switches on automatically.<\/span><\/li>\n<li><b>Select mode and fluid<\/b><span>Choose Normal or Brand Mode, then the brand and fluid type.<\/span><\/li>\n<li><b>Immerse the test rod<\/b><span>Make sure the sampling hole is submerged and bleed air bubbles from the test head cavity.<\/span><\/li>\n<li><b>Run the test<\/b><span>At the ready screen, hold S for about 16 seconds and wait for the progress bar to finish.<\/span><\/li>\n<\/ol>\n<p class=\"abd-note\">Operation and troubleshooting: <a href=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/588b6dd28cd59c6db9d09763.pdf\" target=\"_blank\" rel=\"noopener\">AS506 user manual (PDF)<\/a>.<\/p>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-notes\">\n<h4>Good to Know<\/h4>\n<div class=\"abd-notes\">\n<div class=\"abd-note-group is-caution\">\n<h5><span class=\"abd-tag\">Caution<\/span><\/h5>\n<ul>\n<li>Never run a test without enough fluid; heating an empty test rod can damage it.<\/li>\n<li>The test rod and fluid are hot after testing. Do not touch them directly.<\/li>\n<li>Do not pour tested fluid back into the reservoir; boiling changes its structure.<\/li>\n<li>Do not reverse the clamps or short them against the vehicle. Working voltage is 12 V, minimum 10 V.<\/li>\n<li>Wear goggles and avoid splashing brake fluid. For brake fluid only, and for use by trained technicians.<\/li>\n<\/ul>\n<\/div>\n<div class=\"abd-note-group is-care\">\n<h5><span class=\"abd-tag\">Care<\/span><\/h5>\n<ul>\n<li>After each test, empty the beaker and run a test with about 50 ml of water to clean the rod.<\/li>\n<li>Before long storage, run a water test to remove corrosive residue, then let the heating rod dry at room temperature.<\/li>\n<li>Quick check: water should read about 100 \u00b0C \/ 212 \u00b0F \u00b13%. For stricter calibration, the unit must go back to the factory.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>Heated Boiling-Point Test:<\/strong> Heat a prepared brake-fluid sample and report its boiling point for comparison with the applicable service reference.<\/li>\n<li><strong>DOT3 \/ DOT4 \/ DOT5.1:<\/strong> Select a test mode for DOT3, DOT4, or DOT5.1 brake fluid.<\/li>\n<li><strong>Normal + 14-Brand Modes:<\/strong> Choose a general fluid-type test or one of 14 supported brand references.<\/li>\n<li><strong>About 16 Seconds:<\/strong> Follow live temperature and progress on the OLED during the approximately 16-second test cycle.<\/li>\n<li><strong>Reusable Test Hardware:<\/strong> Run repeated sample tests without disposable test strips, using an external 12 V battery supply.<\/li>\n<\/ul>","protected":false},"featured_media":12328,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[128],"product_cat":[62,99],"product_tag":[],"class_list":["post-3539","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-best-selling-products","product_cat-fluid-testers","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product\/3539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/comments?post=3539"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media\/12328"}],"wp:attachment":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media?parent=3539"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_brand?post=3539"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_cat?post=3539"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_tag?post=3539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}