{"id":42266,"date":"2024-03-19T13:46:22","date_gmt":"2024-03-19T05:46:22","guid":{"rendered":"https:\/\/autoolstore.com\/?post_type=product&#038;p=42266"},"modified":"2026-09-20T08:33:01","modified_gmt":"2026-09-20T16:33:01","slug":"autool-sc301-automotive-coolant-leak-detector-and-filler","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/product\/autool-sc301-automotive-coolant-leak-detector-and-filler\/","title":{"rendered":"AUTOOL SC301 Coolant Pressure Tester and Vacuum Filler"},"content":{"rendered":"\n\n\r\n<div><div>\r\n<div class=\"autool-page-shell\"><main class=\"autool-description autool-product-page\" data-autool-lightbox=\"off\" data-autool-mobile-nav=\"false\" data-autool-rail-controls=\"true\" id=\"sc301-product-page\"><section class=\"autool-section autool-product-hero autool-section--overview\" data-autool-nav=\"Overview\" data-autool-surface=\"dark\" id=\"autool-overview\"><div class=\"autool-layout-container autool-product-hero__grid\">\r\n<div class=\"autool-product-hero__copy\">\r\n<p class=\"autool-product-hero__eyebrow\">AUTOOL SC301 \u00b7 Cooling System Vacuum Filler and Leak Tester<\/p>\r\n<h2 class=\"autool-product-hero__title\">Test for Leaks, Then Vacuum-Fill Coolant<\/h2>\r\n<p class=\"autool-product-hero__lead\">AUTOOL SC301 combines a vacuum-hold check and vacuum-assisted coolant filling for compatible cooling-system openings. Tester Mode draws one of three selected vacuum levels (-35, -40 or -45 kPa) and reports the 60-second hold status; Filler Mode adds coolant after vacuuming. The 12 V \/ 5 A unit requires an external air supply and one of the three matching conical adapters.<\/p>\r\n<ul aria-label=\"AUTOOL SC301 Automotive Coolant Leak Detector and Filler key benefits\" class=\"autool-product-hero__capabilities\">\r\n<li>Vacuum-Hold Leak Check<\/li>\r\n<li>Automatic Vacuum Filling<\/li>\r\n<li>-35 \/ -40 \/ -45 kPa Modes<\/li>\r\n<li>33 \/ 41 \/ 52 mm Adapters<\/li>\r\n<li>12 V \/ 5 A Input<\/li>\r\n<\/ul>\r\n<nav aria-label=\"AUTOOL SC301 Automotive Coolant Leak Detector and Filler sections\" class=\"autool-product-hero__actions\"><a class=\"autool-product-button autool-product-button--primary\" href=\"#autool-features\">Explore Features<\/a><a class=\"autool-product-button\" href=\"#autool-use\">View Workflow<\/a><a class=\"autool-product-button\" href=\"#autool-specifications\">View Specs<\/a><\/nav>\r\n<\/div>\r\n<figure class=\"autool-product-hero__media\"><img alt=\"AUTOOL SC301 cooling system tester and filler main product image\" decoding=\"async\" fetchpriority=\"high\" loading=\"eager\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/AUTOOL-SC301-Automotive-Coolant-Leak-Detector-and-Filler-2.jpg\"\/><\/figure>\r\n<\/div><\/section><aside aria-label=\"AUTOOL SC301 Automotive Coolant Leak Detector and Filler at a glance\" class=\"autool-product-metrics\"><div class=\"autool-product-metrics__inner\">\n<div class=\"autool-product-metric\"><strong>Vacuum + Fill<\/strong><span>Service Modes<\/span><\/div>\n<div class=\"autool-product-metric\"><strong>2 m<\/strong><span>Filling Hose<\/span><\/div>\n<div class=\"autool-product-metric\"><strong>3<\/strong><span>Conical Adapters<\/span><\/div>\n<div class=\"autool-product-metric\"><strong>12 V DC \/ 5 A<\/strong><span>Power Input<\/span><\/div>\n<\/div><\/aside><section class=\"autool-section autool-product-section--soft autool-section--value\" data-autool-surface=\"base\" id=\"autool-features\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Key Features<\/p>\r\n<h2 class=\"autool-title\">Switch Between Leak Test and Vacuum Fill<\/h2><\/header><div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"features\">\r\n<article class=\"autool-product-card\"><h3>Vacuum-Hold Test + Vacuum Fill<\/h3>\r\n<p>Filler Mode removes residual air and refills coolant. Tester Mode checks cooling-system sealing by drawing a vacuum and monitoring it through the hold period.<\/p><\/article><article class=\"autool-product-card\"><h3>Automatic Coolant Filling<\/h3>\r\n<p>After vacuuming is complete in Filling Mode, the machine automatically starts adding coolant to the cooling system.<\/p><\/article><article class=\"autool-product-card\"><h3>Vacuum-Hold Status<\/h3>\r\n<p>In Tester Mode, the machine applies the selected vacuum and reports a hold status. Use that status to check the adapter seal, connections, and cooling system, then inspect the suspected area if the hold is not maintained.<\/p><\/article><article class=\"autool-product-card\"><h3>Three Pressure Settings<\/h3>\r\n<p>Choose -35KPa, -40KPa, or -45KPa based on the working condition and vehicle configuration.<\/p><\/article><article class=\"autool-product-card\"><h3>Digital Control Panel<\/h3>\r\n<p>The panel separates Filling Mode and Leak Detection Mode, with digital display, pressure knob, working indicator, and start\/stop buttons.<\/p><\/article><article class=\"autool-product-card\"><h3>Red and Green Hold Status<\/h3><p>The red or green indicator reports whether the connected setup maintained the selected vacuum during the model&#8217;s hold cycle. Recheck the adapter and hose seals before attributing a failed hold to the vehicle cooling system.<\/p><p>The red and green indicators report the model\u2019s hold status for the selected check. Confirm the adapter and connection seal before treating a failed hold as evidence of a cooling-system leak.<\/p><\/article><article class=\"autool-product-card\"><h3>One-Person Operation<\/h3>\r\n<p>The high-automation workflow helps reduce manual effort and supports faster coolant replacement and cooling system inspection.<\/p><\/article><article class=\"autool-product-card\"><h3>Wide Adapter Support<\/h3>\r\n<p>Three adapter fittings help connect the tool to many common coolant reservoir openings for filling and leak detection.<\/p><\/article><article class=\"autool-product-card\"><h3>Three Adapter Connections<\/h3>\r\n<p>Three fittings support many common coolant reservoir openings. Prepare the air, fluid, and power connections before starting the selected service mode.<\/p><\/article><article class=\"autool-product-card\"><h3>Cooling System Leak Check<\/h3>\r\n<p>Use Testing Mode to help check main cooling system pipelines, engine coolant hoses, heater cores, and related cooling system sections.<\/p><\/article><article class=\"autool-product-card\"><h3>Coolant Replacement<\/h3>\r\n<p>Use Filling Mode to vacuum the system and add coolant, helping reduce air mixed into the cooling system during refilling.<\/p><\/article><article class=\"autool-product-card\"><h3>Three Adapter Sizes<\/h3>\r\n<p>The package image and adapter image show three fittings marked around 33mm, 41mm, and 52mm for different reservoir openings.<\/p><\/article><article class=\"autool-product-card\"><h3>Most Vehicle Cooling Reservoirs<\/h3>\r\n<p>The universal adapter fits many cooling reservoirs; match its size and sealing surface to the reservoir opening before use.<\/p><\/article>\r\n<article class=\"autool-product-card\"><h3>3 Years Warranty Support<\/h3><p>Main unit: 3-year warranty. Standard accessories: 1-year warranty. <a href=\"https:\/\/autoolstore.com\/warranty-policy\/\" rel=\"noopener\" target=\"_blank\">Warranty Policy<\/a>.<\/p><\/article><\/div>\r\n<\/div><\/section><section class=\"autool-section autool-section--workflow autool-section--workflow-anchor\" data-autool-surface=\"dark\" id=\"autool-use\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">How to Use<\/p>\r\n<h2 class=\"autool-title\">Test the System and Vacuum-Fill Coolant<\/h2><\/header><div class=\"autool-workflow\" data-autool-workflow=\"\" data-workflow-mode=\"panels\">\r\n<div aria-label=\"sc301 workflow\" class=\"autool-workflow__tabs\" data-workflow-tabs=\"\" role=\"tablist\">\r\n<button aria-controls=\"sc301-panel-0\" aria-selected=\"true\" class=\"autool-workflow__tab\" data-workflow-step=\"0\" id=\"sc301-tab-0\" role=\"tab\" tabindex=\"0\" type=\"button\">01<br\/><wbr\/>Cool<wbr\/> and<wbr\/> Identify<wbr\/> the<wbr\/> System<\/button><button aria-controls=\"sc301-panel-1\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"1\" id=\"sc301-tab-1\" role=\"tab\" tabindex=\"-1\" type=\"button\">02<br\/><wbr\/>Select<wbr\/> and<wbr\/> Seal<wbr\/> the<wbr\/> Adapter<\/button><button aria-controls=\"sc301-panel-2\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"2\" id=\"sc301-tab-2\" role=\"tab\" tabindex=\"-1\" type=\"button\">03<br\/><wbr\/>Connect<wbr\/> Power<wbr\/> and<wbr\/> Air<\/button><button aria-controls=\"sc301-panel-3\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"3\" id=\"sc301-tab-3\" role=\"tab\" tabindex=\"-1\" type=\"button\">04<br\/><wbr\/>Run<wbr\/> Testing<wbr\/> or<wbr\/> Filling<\/button><button aria-controls=\"sc301-panel-4\" aria-selected=\"false\" class=\"autool-workflow__tab\" data-workflow-step=\"4\" id=\"sc301-tab-4\" role=\"tab\" tabindex=\"-1\" type=\"button\">05<br\/><wbr\/>Restore<wbr\/> and<wbr\/> Verify<\/button>\r\n<\/div>\r\n<div class=\"autool-workflow__position\">\r\n<span class=\"autool-workflow__position-label\">Step progress<\/span><span class=\"autool-workflow__progress\"><span class=\"autool-workflow__progress-bar\" data-workflow-progress=\"\"><\/span><\/span><span class=\"autool-workflow__position-count\" data-workflow-count=\"\">1 \/ 5<\/span>\r\n<\/div>\r\n<div class=\"autool-workflow__content\">\r\n<div class=\"autool-workflow__main\">\r\n<div class=\"autool-workflow__panels\">\r\n<article aria-labelledby=\"sc301-tab-0\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" id=\"sc301-panel-0\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">01<\/div>\r\n<h3 class=\"autool-workflow__title\">Cool and Identify the System<\/h3>\r\n<p class=\"autool-workflow__description\">Allow the cooling system to cool, identify the specified coolant and choose the supported test or fill mode.<\/p><\/article><article aria-labelledby=\"sc301-tab-1\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"sc301-panel-1\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">02<\/div>\r\n<h3 class=\"autool-workflow__title\">Select and Seal the Adapter<\/h3>\r\n<p class=\"autool-workflow__description\">Choose the fitting for the actual reservoir or radiator opening and inspect every hose connection.<\/p><\/article><article aria-labelledby=\"sc301-tab-2\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"sc301-panel-2\" role=\"tabpanel\" tabindex=\"0\"><h3 class=\"autool-workflow__title\">Connect Power and Air<\/h3><p>Drain residual coolant in an open area or collect it with a container.<\/p><p>After disconnecting from the vehicle, close the drain valve by turning it downward.<\/p><p>Press and hold the Tester Mode Start button until the buzzer sounds, then release.<\/p><p>Press Tester Mode Start to clean internal pipes.<\/p><p>Liquid will discharge from the filling port.<\/p><p>When no liquid comes out, press Tester Mode Stop, power off, and remove the compressed air hose.<\/p><p>Connect the specified 12 V DC supply and suitable compressed-air source, then confirm the control settings.<\/p><\/article><article aria-labelledby=\"sc301-tab-3\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"sc301-panel-3\" role=\"tabpanel\" tabindex=\"0\"><h3 class=\"autool-workflow__title\">Run Testing or Filling<\/h3><p>On startup, Testing Mode and Filling Mode show their gear selections. When one mode is selected, the gear display for the other mode disappears so the user can confirm the active mode more easily.<\/p><p>Apply the selected vacuum-hold or vacuum-fill mode while watching the pressure and vacuum readings, status indicators, and coolant flow.<\/p><\/article><article aria-labelledby=\"sc301-tab-4\" class=\"autool-workflow__panel\" data-workflow-panel=\"\" hidden=\"\" id=\"sc301-panel-4\" role=\"tabpanel\" tabindex=\"0\"><div class=\"autool-workflow__number\">05<\/div>\r\n<h3 class=\"autool-workflow__title\">Restore and Verify<\/h3>\r\n<p class=\"autool-workflow__description\">Disconnect the machine, restore the vehicle circuit, complete the vehicle bleed procedure and verify final level and leak status.<\/p><\/article>\r\n<\/div>\r\n<div class=\"autool-workflow__actions\">\r\n<button class=\"autool-workflow__button\" data-workflow-prev=\"\" disabled=\"\" type=\"button\">\u2190 Previous<\/button><button class=\"autool-workflow__button autool-workflow__button--next\" data-workflow-next=\"\" type=\"button\">Next step \u2192<\/button>\r\n<\/div>\r\n<\/div>\r\n<aside class=\"autool-workflow__safety\" data-workflow-safety=\"\"><h3 class=\"autool-workflow__safety-title\">Before You Start<\/h3>\r\n<ul class=\"autool-workflow__safety-list\">\r\n<li>Use a car battery or DC 12V power supply. Do not connect the SC301 to 24V, 110V, 220V, or 380V power.<\/li>\r\n<li>Connect the air inlet hose to an external air compressor. A compressor rated around 0.7MPa or higher is recommended before operation.<\/li>\r\n<\/ul><\/aside>\r\n<\/div>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--soft\" data-autool-surface=\"base\" id=\"autool-safety\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Safety &amp; Compatibility<\/p>\r\n<h2 class=\"autool-title\">Work Cold and Match the Service Port<\/h2><\/header><div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\" data-autool-rail=\"safety\">\r\n<article class=\"autool-product-card\"><h3>DC 12V Only<\/h3>\r\n<p>Use a car battery or DC 12V power supply. Do not connect the SC301 to 24V, 110V, 220V, or 380V power.<\/p><\/article><article class=\"autool-product-card\"><h3>Air Compressor Required<\/h3>\r\n<p>Connect the air inlet hose to an external air compressor. A compressor rated around 0.7MPa or higher is recommended before operation.<\/p><\/article><article class=\"autool-product-card\"><h3>Vehicle Ignition Not Required<\/h3>\r\n<p>The cooling system test and coolant filling process does not require starting the vehicle.<\/p><\/article><article class=\"autool-product-card\"><h3>Cool Before Opening<\/h3>\r\n<p>Before opening the radiator cap or coolant reservoir, make sure the radiator and cooling system have cooled down.<\/p><\/article><article class=\"autool-product-card\"><h3>Use Suitable Coolant<\/h3>\r\n<p>Avoid low-quality coolant. Do not mix coolants with different performance specifications, and do not add undiluted coolant directly in low-temperature conditions.<\/p><\/article><article class=\"autool-product-card\"><h3>Use Lower Pressure For Older Vehicles<\/h3>\r\n<p>For older vehicles or aging cooling system parts, choose a lower pressure level instead of higher settings.<\/p><\/article><article class=\"autool-product-card\"><h3>Cooling System Leak Check<\/h3>\r\n<p>Use Testing Mode to help check main cooling system pipelines, engine coolant hoses, heater cores, and related cooling system sections.<\/p><\/article><article class=\"autool-product-card\"><h3>Coolant Replacement<\/h3>\r\n<p>Use Filling Mode to vacuum the system and add coolant, helping reduce air mixed into the cooling system during refilling.<\/p><\/article><article class=\"autool-product-card\"><h3>Three Adapter Sizes<\/h3>\r\n<p>The package image and adapter image show three fittings marked around 33mm, 41mm, and 52mm for different reservoir openings.<\/p><\/article><article class=\"autool-product-card\"><h3>Most Vehicle Cooling Reservoirs<\/h3>\r\n<p>Before sealing the cooling system, select the adapter that matches the reservoir opening and confirm an even sealing surface.<\/p><\/article>\r\n<article class=\"autool-product-card\"><h3>Drain Valve Position<\/h3><p>Open the drain valve before starting Testing Mode or Filling Mode. The valve is open when it aligns parallel to the air hose.<\/p><\/article><article class=\"autool-product-card\"><h3>Ventilated Leak Testing<\/h3><p>Operate in a well-ventilated area and avoid inhaling gas during leak detection.<\/p><\/article><article class=\"autool-product-card\"><h3>Damage Inspection<\/h3><p>Inspect the equipment before use. If damage is found, stop using the machine and arrange qualified repair.<\/p><\/article><article class=\"autool-product-card\"><h3>Residual Coolant Drainage<\/h3><p>When draining residual coolant, work in an open area or use a container to collect the liquid.<\/p><\/article><\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--white\" data-autool-surface=\"white\" id=\"autool-results\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Results<\/p>\r\n<h2 class=\"autool-title\">Read the Vacuum-Hold Result Before Filling<\/h2><\/header><div class=\"autool-product-grid autool-product-grid--3 autool-product-rail\"><article class=\"autool-product-card\"><h3>Use the Vacuum-Hold Status<\/h3>\r\n<p>Use the red\/green vacuum-hold status to check the adapter seal, connections, and cooling system, then inspect any suspected leak area.<\/p><\/article><\/div>\r\n<\/div><\/section><section class=\"autool-section\" data-autool-nav=\"Spec&amp;Comparison\" data-autool-surface=\"dark\" id=\"autool-specifications\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Specifications<\/p>\r\n<h2 class=\"autool-title\">Power, Hose and Service-Mode Specifications<\/h2><\/header><div class=\"autool-evidence-table-shell\" data-autool-table-slider=\"\"><div aria-label=\"Product specifications\" class=\"autool-evidence-table-scroll\" role=\"region\" tabindex=\"0\"><table class=\"autool-evidence-table\">\r\n<caption class=\"autool-table-caption--accessible\">Product Specifications<\/caption>\r\n<thead><tr>\r\n<th scope=\"col\">Specification<\/th>\r\n<th scope=\"col\">Value<\/th>\r\n<\/tr><\/thead>\r\n<tbody>\r\n<tr>\r\n<th scope=\"row\">Power Input<\/th>\r\n<td>12 V DC \/ 5 A<\/td>\r\n<\/tr>\r\n<tr>\r\n<th scope=\"row\">Filling Hose<\/th>\r\n<td>2 m<\/td>\r\n<\/tr>\r\n<tr>\r\n<th scope=\"row\">Conical Adapters<\/th>\r\n<td>3<\/td>\r\n<\/tr>\r\n<tr>\r\n<th scope=\"row\">Service Modes<\/th>\r\n<td>Vacuum + Fill<\/td>\r\n<\/tr>\r\n<tr><th scope=\"row\">Vacuum Levels<\/th><td>-35 \/ -40 \/ -45 kPa<\/td><\/tr>\n<tr><th scope=\"row\">Conical Adapter Sizes<\/th><td>approximately 33 \/ 41 \/ 52 mm<\/td><\/tr>\n<tr><th scope=\"row\">Vacuum-Hold Period<\/th><td>60 sec<\/td><\/tr>\n<tr><th scope=\"row\">External Air Compressor<\/th><td>around 0.7 MPa or higher recommended.<\/td><\/tr>\n<\/tbody>\r\n<\/table><\/div><\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--cool autool-section--downloads\" data-autool-surface=\"cool\" id=\"autool-download\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">Manual &amp; Support<\/p>\r\n<h2 class=\"autool-title\">Confirm Adapters and Service Setup<\/h2><\/header><div aria-label=\"AUTOOL SC301 Automotive Coolant Leak Detector and Filler manual download and setup support\" class=\"autool-product-rail autool-resources-grid autool-mobile-rail\" data-autool-rail=\"support\">\r\n<article class=\"autool-resource-download autool-resource-panel\"><div class=\"autool-resource-media\"><img loading=\"lazy\" alt=\"AUTOOL SC301 user manual cover\" decoding=\"async\" height=\"300\" loading=\"lazy\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/autool-sc301-user-manual-pdf.jpg\" width=\"212\"\/> <\/div><div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Manual \/ PDF<\/span><h3>AUTOOL SC301 User Manual<\/h3><p>Open the PDF manual for SC301 leak testing, vacuum-hold checks, coolant filling and adapter selection, with operating safety and troubleshooting support.<\/p><div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/autool-sc301-user-manual.pdf\" rel=\"noopener\" target=\"_blank\">Download Manual<\/a><\/div><\/div><\/article><aside class=\"autool-resource-panel autool-section--support\" id=\"autool-support\"><div class=\"autool-resource-body\"><span class=\"autool-resource-meta\">Setup Help<\/span><h3>Need Help Choosing the Right Setup?<\/h3><p>Contact AUTOOL Store before ordering for help with manual versions, installation steps, compatibility, accessories, safe-use instructions, or after-sales support.<\/p><dl class=\"autool-support-list\"><div><dt>Email<\/dt><dd><a href=\"mailto:support@autoolstore.com\">support@autoolstore.com<\/a><\/dd><\/div><div><dt>WhatsApp<\/dt><dd><a href=\"https:\/\/wa.me\/8618926477404\" target=\"_blank\" rel=\"noopener\">+86 189 2647 7404<\/a><\/dd><\/div><\/dl><div class=\"autool-resource-actions\"><a class=\"autool-product-button\" href=\"mailto:support@autoolstore.com\">EMAIL<\/a><a class=\"autool-product-button\" href=\"https:\/\/wa.me\/8618926477404\" rel=\"noopener\" target=\"_blank\">WHATSAPP<\/a><\/div><\/div><\/aside>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--warm autool-section--package\" data-autool-surface=\"warm\" id=\"autool-box\"><div class=\"autool-layout-container\">\r\n<div class=\"autool-package-layout\">\r\n<figure class=\"autool-package-media\"><img decoding=\"async\" alt=\"AUTOOL SC301 packing list with main unit retail box power cable adapters and user manual\" src=\"https:\/\/autoolstore.com\/wp-content\/uploads\/2024\/03\/AUTOOL-SC301-Automotive-Coolant-Leak-Detector-and-Filler-15.jpg\"\/> <\/figure>\r\n<div class=\"autool-package-copy\"><p class=\"autool-subhead\">Package Contents<\/p>\r\n<h2 class=\"autool-title\">Check Adapters, Hoses and Included Parts<\/h2><ul aria-label=\"AUTOOL SC301 Automotive Coolant Leak Detector and Filler package contents\" class=\"autool-package-list autool-product-rail\" data-autool-rail=\"package\">\r\n<li>\r\n<span>Main Unit<\/span><strong>AUTOOL SC301 cooling system tester and filler<\/strong>\r\n<\/li>\r\n<li>\r\n<span>Retail Box<\/span><strong>SC301 product packaging<\/strong>\r\n<\/li>\r\n<li>\r\n<span>Power Cable<\/span><strong>DC 12V battery clamp power cable<\/strong>\r\n<\/li>\r\n<li>\r\n<span>Adapters<\/span><strong>Three coolant reservoir adapter fittings<\/strong>\r\n<\/li>\r\n<li>\r\n<span>Hoses<\/span><strong>Hoses shown with the SC301 main unit for coolant filling and air connection<\/strong>\r\n<\/li>\r\n<li>\r\n<span>Documentation<\/span><strong>User manual<\/strong>\r\n<\/li>\r\n<li><span>Package Weight<\/span><strong>7.2 kg<\/strong><\/li><\/ul><\/div>\r\n<\/div>\r\n<\/div><\/section><section class=\"autool-section autool-product-section--white autool-section--faq\" data-autool-nav=\"FAQ\" data-autool-surface=\"white\" id=\"autool-faq-description\"><div class=\"autool-layout-container\">\r\n<header class=\"autool-section-head\"><p class=\"autool-subhead\">FAQs<\/p>\r\n<h2 class=\"autool-title\">Cooling-System Fit and Service Questions<\/h2><\/header><div class=\"autool-faq-grid\">\r\n<details><summary>Does SC301 Need An External Air Compressor?<\/summary><div class=\"autool-faq-answer\"><p>Yes. SC301 requires an external air compressor connected to the air source input. A compressor rated around 0.7MPa or higher is recommended for proper operation.<\/p><\/div><\/details><details><summary>Can I Power SC301 With 24V, 110V, Or 220V?<\/summary><div class=\"autool-faq-answer\"><p>No. SC301 is designed for DC 12V power only. Using 24V, 110V, 220V, or 380V may damage the equipment.<\/p><\/div><\/details><details><summary>Does The Vehicle Need To Be Started During Testing?<\/summary><div class=\"autool-faq-answer\"><p>No. Vehicle ignition is not required for SC301 cooling system testing or coolant filling.<\/p><\/div><\/details><details><summary>Which Pressure Level Should I Choose?<\/summary><div class=\"autool-faq-answer\"><p>SC301 provides three vacuum pressure levels: -35KPa, -40KPa, and -45KPa. Choose the level according to the vehicle condition and cooling system status. For older vehicles or aging components, use a lower pressure level.<\/p><\/div><\/details><details><summary>What Do The Red And Green Lights Mean?<\/summary><div class=\"autool-faq-answer\"><p>In Testing Mode, the green light means no leakage is detected, while the red light means leakage is detected. The machine completes its vacuum-hold check and then provides the indication automatically.<\/p><p>The red\/green display reports vacuum-hold status for the selected check. If the hold fails, inspect the adapter seal, connections, and cooling system for the leak area.<\/p><\/div><\/details><details><summary>What Happens During Testing Mode?<\/summary><div class=\"autool-faq-answer\"><p>After the correct vacuum level is selected and the Start\/Stop button is pressed, the machine starts vacuuming. Once vacuuming is complete, it enters a 60-second vacuum-hold mode and then gives an automatic leak detection result.<\/p><\/div><\/details><details><summary>What Should I Do If The Selected Vacuum Level Cannot Be Maintained?<\/summary><div class=\"autool-faq-answer\"><p>If the selected vacuum level cannot be achieved and maintained in Testing Mode, SC301 switches to its vacuum-hold mode within two minutes and displays a fault reminder. Check the cooling system connection, adapter sealing, hoses, and possible leak points before testing again.<\/p><\/div><\/details><details><summary>What Happens During Filling Mode?<\/summary><div class=\"autool-faq-answer\"><p>In Filling Mode, choose the suitable gear, press Start\/Pause, and the machine begins vacuuming the cooling system. After vacuuming is complete, coolant is automatically filled into the system. If filling is not complete, multiple filling cycles can be performed.<\/p><\/div><\/details><details><summary>What Should I Do If Coolant Does Not Enter During Filling Mode?<\/summary><div class=\"autool-faq-answer\"><p>If no coolant enters the system within two minutes during Filling Mode, SC301 displays a fault reminder. Check whether the coolant inlet hose is placed correctly in the coolant container, whether the adapter is sealed, whether the drain valve is in the correct position, and whether the air compressor is connected properly.<\/p><\/div><\/details><details><summary>What Adapters Are Included?<\/summary><div class=\"autool-faq-answer\"><p>Three adapter fittings are marked approximately 33 mm, 41 mm, and 52 mm. They fit many common coolant reservoir openings; confirm fitment for special vehicles.<\/p><\/div><\/details><details><summary>Is Coolant Included In The Package?<\/summary><div class=\"autool-faq-answer\"><p>No. Coolant is not included. Use coolant that matches the vehicle and avoid mixing coolants with different performance specifications.<\/p><\/div><\/details><details><summary>What Is Included In The Package?<\/summary><div class=\"autool-faq-answer\"><p>The SC301 package includes the main unit, retail box, DC 12 V battery-clamp power cable, three adapter fittings, hoses, and user manual. Coolant and the external air compressor are not included.<\/p><\/div><\/details><details><summary>How Should I Maintain The SC301?<\/summary><div class=\"autool-faq-answer\"><ul><li>Check tightened and connected parts regularly.<\/li><li>Treat parts that contact chemical media with anti-corrosion care when needed.<\/li><li>Do not overload the equipment, check aging wires in time, avoid contact with corrosive liquids, and store the product in a dry place when not in use.<\/li><\/ul><\/div><\/details><details><summary>How Long Is The Warranty?<\/summary><div class=\"autool-faq-answer\"><p>Main unit: 3-year warranty. Standard accessories: 1-year warranty. <a href=\"https:\/\/autoolstore.com\/warranty-policy\/\" rel=\"noopener\" target=\"_blank\">Warranty Policy<\/a>.<\/p><\/div><\/details>\r\n<\/div>\r\n<\/div><\/section><\/main><\/div>\r\n\r\n<\/div>\r\n<!-- \/wp:post-content -->\r\n<\/div>","protected":false},"excerpt":{"rendered":"<ul>\n<li><strong>Vacuum-Hold Test + Coolant Fill:<\/strong> Switch between a vacuum-hold test for cooling-system sealing and vacuum-assisted coolant filling.<\/li>\n<li><strong>Automatic Coolant Filling:<\/strong> After Filling Mode reaches vacuum, the SC301 automatically starts adding coolant to the system.<\/li>\n<li><strong>-35 \/ -40 \/ -45 kPa Vacuum:<\/strong> Choose -35 kPa, -40 kPa, or -45 kPa for the vehicle and working condition.<\/li>\n<li><strong>Red\/Green Hold Status:<\/strong> Read the selected vacuum-hold result through red and green status indicators on the digital control panel.<\/li>\n<li><strong>33 \/ 41 \/ 52 mm Adapters:<\/strong> Match common coolant reservoir openings with the included 33 mm, 41 mm, and 52 mm fittings.<\/li>\n<\/ul>\n","protected":false},"featured_media":79667,"comment_status":"open","ping_status":"closed","template":"","meta":{"_gspb_post_css":""},"product_brand":[448],"product_cat":[1072,1078],"product_tag":[943,939,1038,953],"hf_cat_product":[4536],"class_list":["post-42266","product","type-product","status-publish","has-post-thumbnail","product_brand-autool","product_cat-automotive-repair-maintenance-equipment","product_cat-cooling-system-tester-and-filler","product_tag-leak-detection","product_tag-multi-warehouse-shipping","product_tag-new-arrival","product_tag-workshop-diagnostic-tools","first","instock","shipping-taxable","purchasable","product-type-variable"],"meta_box":{"autool_archive_segment":"General automotive tool","autool_primary_use_case":"General workshop diagnostic or maintenance tool","autool_customer_focus":["warehouse \/ delivery location"],"autool_source_summary":"- Use Case Up Front: Keeps the practical service use case visible first so buyers can quickly decide whether it fits the job they need to do. - Decision Points Up Front: The short description is structured to surface pra","autool_model_family":"SC301","autool_voltage_options":"","autool_ship_from_options":"Germany\u3001United States\u3001United Kingdom\u3001China","autool_package_options":"","autool_accessory_options":"","autool_data_confidence":"site-content-derived","autool_manual_review_notes":""},"_links":{"self":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product\/42266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/comments?post=42266"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media\/79667"}],"wp:attachment":[{"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/media?parent=42266"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_brand?post=42266"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_cat?post=42266"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/product_tag?post=42266"},{"taxonomy":"hf_cat_product","embeddable":true,"href":"https:\/\/autoolstore.com\/wp-json\/wp\/v2\/hf_cat_product?post=42266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}