{"id":3631,"date":"2026-09-29T05:43:52","date_gmt":"2026-09-29T05:43:52","guid":{"rendered":"https:\/\/shop.autoboss.com\/?post_type=product&#038;p=3631"},"modified":"2026-10-09T08:20:31","modified_gmt":"2026-10-09T08:20:31","slug":"autool-ast612-car-pulsating-brake-oil-changer","status":"publish","type":"product","link":"https:\/\/autoboss.com\/de\/product\/autool-ast612-car-pulsating-brake-oil-changer\/","title":{"rendered":"AUTOOL AST612 12V Two-Wheel Pulsating Brake Fluid Exchanger with 9 Adapters"},"content":{"rendered":"<div class=\"abd-pd\" data-abd-version=\"1\">\n<header class=\"abd-hero\">\n<h3>Two-Wheel Brake Fluid Exchange on Battery Power<\/h3>\n<p class=\"abd-lead\">The AUTOOL AST612 runs from the vehicle&#8217;s 12 V battery, delivers fresh brake fluid with pulsating pressure and collects used fluid from two wheel positions at once, so one person can do the job without mains power.<\/p>\n<ul class=\"abd-facts\">\n<li>2 Wheels at Once<\/li>\n<li>12 V DC<\/li>\n<li>2.6 L\/min<\/li>\n<li>9 Adapter Types<\/li>\n<li>Auto Pressure Release<\/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>Pulsating Fluid Exchange<\/h5>\n<p>Pulsating pressure feeds the reservoir while used fluid drains from each caliper until new fluid appears, reducing the risk of bubbles compared with basic pressure filling.<\/p>\n<\/li>\n<li>\n<h5>Single-Person Operation<\/h5>\n<p>No helper is needed to pump the brake pedal, and the engine does not need to run.<\/p>\n<\/li>\n<li>\n<h5>Two Wheels Simultaneously<\/h5>\n<p>Two 1.5 L recovery bottles let you service two wheel positions in one pass.<\/p>\n<\/li>\n<li>\n<h5>Automatic Pressure Release<\/h5>\n<p>When the exchange is complete, pressure is released automatically in about 30 seconds to reduce splashing.<\/p>\n<\/li>\n<li>\n<h5>Air-Ingress Protection<\/h5>\n<p>If pressure cannot build or the pump draws air, the pressure monitor shuts the unit down to keep air out of the reservoir.<\/p>\n<\/li>\n<li>\n<h5>Compact, Organized Body<\/h5>\n<p>Top carry handle, side hose hook and rear bottle base; the front panel groups the pressure gauge, indicators and buttons.<\/p>\n<\/li>\n<\/ol>\n<\/section>\n<section class=\"abd-sec\" id=\"abd-compare\">\n<h4>AST612 vs AST618<\/h4>\n<div class=\"abd-table-wrap\">\n<table class=\"abd-table abd-compare\">\n<thead>\n<tr>\n<th scope=\"col\"><\/th>\n<th scope=\"col\" class=\"is-current\">AST612<\/th>\n<th scope=\"col\">AST618<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Wheels serviced at once<\/th>\n<td class=\"is-current\">2<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Bottles<\/th>\n<td class=\"is-current\">2 \u00d7 1.5 L used, 1 L new<\/td>\n<td>4 \u00d7 1.5 L used, 3 L stainless steel<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Adapters<\/th>\n<td class=\"is-current\">9 types<\/td>\n<td>17 types<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Maximum flow<\/th>\n<td class=\"is-current\">2.6 L\/min<\/td>\n<td>1.6 L\/min<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Pressure relief time<\/th>\n<td class=\"is-current\">30 s<\/td>\n<td>10 s<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Pulse and working-time settings<\/th>\n<td class=\"is-current\">No<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Working pressure<\/th>\n<td class=\"is-current\">1.5\u20133.0 bar<\/td>\n<td>0.6\u20133.0 bar<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Casters and telescoping handle<\/th>\n<td class=\"is-current\">No<\/td>\n<td>Yes<\/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>AST612 brake fluid bleeder<\/li>\n<li>Two 1.5 L used-fluid recovery bottles<\/li>\n<li>1 L fresh-fluid storage bottle<\/li>\n<li>12 V battery-clamp cable<\/li>\n<li>3.5 m filling hose and related hoses<\/li>\n<li>Nine reservoir adapters<\/li>\n<li>User manual<\/li>\n<\/ul>\n<figure class=\"abd-fig\"><img decoding=\"async\" src=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/2de8471ce997c891ad690818.webp\" alt=\"AUTOOL AST612 with recovery bottles, fresh-fluid bottle, battery cable, filling hose, nine adapters and manual\" width=\"1200\" height=\"1200\" loading=\"lazy\"><figcaption>Brake fluid is not included.<\/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>Prime the line (first use)<\/b><span>Fill the delivery line with the specified brake fluid and bleed out the air before connecting to a vehicle.<\/span><\/li>\n<li><b>Add brake fluid<\/b><span>Fill the storage bottle with new fluid.<\/span><\/li>\n<li><b>Connect the bottle hoses<\/b><span>Attach the suction hose and pressure-balancing hose to the storage bottle.<\/span><\/li>\n<li><b>Connect the battery<\/b><span>Clamp the cable to the vehicle&#8217;s 12 V battery.<\/span><\/li>\n<li><b>Fit the adapter<\/b><span>Connect the filling hose to the matching adapter and seal it on the brake fluid reservoir.<\/span><\/li>\n<li><b>Attach the recovery bottles<\/b><span>Connect the used-fluid bottles to the caliper bleed points.<\/span><\/li>\n<li><b>Start<\/b><span>Switch on and press Start, then follow the vehicle&#8217;s wheel sequence.<\/span><\/li>\n<\/ol>\n<p class=\"abd-note\">Full operating and troubleshooting steps: <a href=\"https:\/\/autoboss.com\/wp-content\/uploads\/autool-catalog\/media\/c7adfd59b1a44fcb4688a661.pdf\" target=\"_blank\" rel=\"noopener\">AST612 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>The regulator is factory set to 1\u20131.5 bar to protect the storage chamber and seal. Avoid excessive pressure, which may damage the brake master cylinder.<\/li>\n<li>Air left in the machine&#8217;s line can interrupt the exchange; prime it before first use.<\/li>\n<li>Check the reservoir adapter, cap and hoses for leaks before building pressure.<\/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>Brake fluid can damage paint; clean spills immediately.<\/li>\n<li>Keep the fresh-fluid filler port clean and inspect the hoses for damage before each job.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>Two-Wheel Fluid Exchange:<\/strong> Service two wheel positions together using two 1.5 L used-fluid bottles.<\/li>\n<li><strong>One-Person Pulsating Delivery:<\/strong> Deliver fresh brake fluid with pulsating pressure without repeated pedal pressing by a second person.<\/li>\n<li><strong>Direct 12 V Power:<\/strong> Run directly from the vehicle\u2019s 12 V battery without external mains power.<\/li>\n<li><strong>Nine Adapter Types:<\/strong> Match nine reservoir-adapter types to compatible vehicle openings.<\/li>\n<li><strong>Automatic Pressure Release:<\/strong> Release system pressure automatically after the replacement is complete.<\/li>\n<\/ul>","protected":false},"featured_media":12642,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[128],"product_cat":[62,63],"product_tag":[],"class_list":["post-3631","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-best-selling-products","product_cat-brake-fluid-maintenance","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product\/3631","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=3631"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media\/12642"}],"wp:attachment":[{"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/media?parent=3631"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_brand?post=3631"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_cat?post=3631"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoboss.com\/de\/wp-json\/wp\/v2\/product_tag?post=3631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}