AUTOOL AST612 Pulsating Brake Fluid Bleeder

AUTOOL AST612Product OverviewThe AUTOOL AST612 brake fluid change machine is a 12V vehicle-powered pulsating brake oil exchanger designed for two-wheel oil exchange. It uses microcontroller control to accurately manage brake fluid pressure and flow, applies new pulse technology to the brake fluid pipeline, helps remove impurities, improves work efficiency, and allows one person to complete brake fluid replacement more easily. 12V Battery Power Two-Wheel Oil Exchange 9 Adapters Pressure Release2.6L/minOutput Flow4.2kgPortable Body3.5mFilling Hose3 YearsWarranty Click to enlarge Click to enlargeKey FeaturesKey FeaturesAST612 focuses on portable, one-person, two-wheel brake fluid replacement with pulse exchange, 12V battery power, nine adapters, pressure release, and compact workshop operation.Pulsating Exchange TechnologyThe pulse exchange process helps replace brake fluid quickly, remove impurities from the brake line, and improve service efficiency.Single-Person OperationOne operator can complete brake fluid replacement without requiring another person to repeatedly press the brake pedal.Powered By 12V BatteryNo external mains power is required. Connect AST612 directly to the vehicle’s 12V battery for operation.Two-Wheel Oil ExchangeEquipped with two 1.5L used oil bottles, AST612 can change brake fluid from two wheel positions at the same time.9 Types Of AdaptersNine adapter types help support many European, American, and Asian vehicle models.Pressure Release FunctionAfter replacement is complete, the machine automatically releases pressure to reduce brake fluid splash risk.Compact And PortableThe compact body is shown as 268×210×295mm and about 4.2kg in the feature image, making it easy to move between work areas.Practical Body DesignSide hook, top handle, and rear storage-bottle base help keep the filling hose, handle, and bottle organized during workshop use. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeSpecificationsSpecificationsReview the AST612 power supply, pressure, output flow, hose, bottle capacity, adapter count, two-wheel service capability, and weight note before ordering.Product And PowerProductAUTOOL AST612 Brake Fluid Change MachineProduct Type12V vehicles pulsating brake oil exchanger / two-wheel brake fluid exchange machinePower SupplyDC 12V vehicle batteryExternal Power SourceNot required; connect to the vehicle batteryPressure And FlowOperating Pressure1.5–3kg/cm² / 1.5–3.0bar reference rangeFactory Pressure Regulator Setting1–1.5barOutput Flow2.6L/minPressure GaugeYesWorking Pressure AdjustmentYesShutdown Pressure Relief30 seconds pressure release timeBottles, Hose And AdaptersNew Fluid Storage Bottle1LUsed Oil Bottles2 × 1.5LFilling Hose Length3.5mAdapters9 types for European, American, and Asian vehiclesBrake Calipers / Wheel Service2 pcs / two-wheel simultaneous brake fluid exchangeBody And SupportProduct Dimensions268×210×295mmProduct Weight NoteFeature image shows portable body as 4.2kg; comparison chart lists product weight as 8kg. Confirm final product / shipping weight with AUTOOL Store before ordering.Warranty3-year warranty for eligible non-human damage cases, lifetime maintenance support Click to enlarge Click to enlarge Product And PowerProductAUTOOL AST612 Brake Fluid Change MachineProduct Type12V vehicles pulsating brake oil exchanger / two-wheel brake fluid exchange machinePower SupplyDC 12V vehicle batteryExternal Power SourceNot required; connect to the vehicle battery Pressure And FlowOperating Pressure1.5–3kg/cm² / 1.5–3.0bar reference rangeFactory Pressure Regulator Setting1–1.5barOutput Flow2.6L/minPressure GaugeYesWorking Pressure AdjustmentYesShutdown Pressure Relief30 seconds pressure release time Bottles, Hose And AdaptersNew Fluid Storage Bottle1LUsed Oil Bottles2 × 1.5LFilling Hose Length3.5mAdapters9 types for European, American, and Asian vehiclesBrake Calipers / Wheel Service2 pcs / two-wheel simultaneous brake fluid exchange Body And SupportProduct Dimensions268×210×295mmProduct Weight NoteFeature image shows portable body as 4.2kg; comparison chart lists product weight as 8kg. Confirm final product / shipping weight with AUTOOL Store before ordering.Warranty3-year warranty for eligible non-human damage cases, lifetime maintenance support How It WorksHow It WorksAST612 delivers new brake fluid at controlled pressure, drains used brake fluid from the calipers in sequence, reduces bubble formation during filling, and uses pressure monitoring to protect the brake fluid reservoir.New Fluid DeliveryBrake fluid is pumped from the new fluid container and delivered to the vehicle brake fluid reservoir at specified pressure.Wheel Caliper DrainageUsed brake fluid is drained from each wheel brake caliper in the prescribed sequence until new fluid flows out.Bubble PreventionCompared with traditional pressurized brake fluid bleeders, AST612 helps prevent air bubbles from forming during the filling process.Pressure Monitoring ProtectionIf pressure cannot be generated or the pump draws in air, the built-in pressure monitoring system shuts down to prevent air from entering the brake fluid reservoir.How To UseHow To UseConnect the storage bottle, hoses, 12V battery, adapter, and recovery bottle correctly before starting the machine. The vehicle does not need to be started during operation.Add Brake FluidAdd new brake fluid into the storage bottle.Connect Bottle HosesConnect the suction hose and pressure balancing hose to the storage bottle.Connect 12V BatteryConnect the machine to a 12V battery using the battery clamp cable.Connect AdapterConnect the filling hose to the appropriate adapter, then connect it to the vehicle brake fluid reservoir.Attach Recovery BottleAttach the recovery oil bottle to the brake cylinder / caliper.Start OperationTurn on the power switch and press the start button to begin brake fluid exchange.Use NotesNo need to start the vehicle for operation.Check each connection for leaks during oil change.Inspect the connecting hose for damage.Keep the new oil filler port clean.For first use, fill the equipment tubing with brake fluid to bleed air from the tubing.If air enters the equipment tubing during oil exchange, the oil exchange may fail. Click to enlarge Click to enlargeProduct ComparisonProduct ComparisonAST612 sits between AST609 and AST618: it is more efficient than single-wheel models and more portable than AST618, but it does not provide four-wheel simultaneous service or AST618’s pulse / working time settings.AST603 / AST605AST605 includes two more compatible connectors than AST603, while other parameters remain the same. Both include one 1L used oil bottle and deliver up to 1.6L/min.AST609Includes seven compatible connectors, one 1.5L used oil bottle, one 1L new oil bottle, and 2.6L/min maximum flow for higher efficiency.AST612Includes two 1.5L used oil bottles, one 1L new oil bottle, nine adapters, and supports two-wheel simultaneous brake fluid exchange.AST618Includes four 1.5L used oil bottles, one stainless steel oil bottle, seventeen adapters, four-wheel simultaneous exchange, pulse mode, working time settings, 360° wheels, and a three-section handle. Click to enlarge Click to enlargeWhat Is In The BoxWhat Is In The BoxThe packing list image shows the AST612 main unit, used oil bottles, new oil bottle, battery clamp cable, hoses, adapters, manual, and carton package. Only the most complete packing image is used here.Main UnitAUTOOL AST612 Brake Fluid BleederUsed Oil Bottles2 × 1.5L recovery bottlesNew Oil Bottle1L storage bottlePower Cable12V battery clamp cableFilling Hose3.5m filling hose and related hoses shown in the package imageAdapters9 types of adaptersDocumentationUser manualPackageCarton box shown in packing imageManual And DownloadsManual And DownloadsDownload the AST612 manual to review 12V connection, hose connection, pressure adjustment, operation sequence, maintenance, and safety details. Click to enlargeAUTOOL AST612 Brake Fluid Bleeder ManualOpen the PDF manual before use to confirm setup, safe working pressure, hose routing, adapter connection, and maintenance instructions. Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need to confirm adapters, pressure adjustment, 12V power connection, two-wheel exchange, or whether AST612 or AST618 better fits your workshop. Email[email protected] WhatsApp 86 189 2647 7404Related ProductsRelated ProductsCompare related AUTOOL brake fluid exchanger models and adapter accessories before choosing the right oil bottle setup, connector count, flow rate, and wheel-service capacity. SALESelect options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Pulsating Brake Fluid ExchangerAUTOOL AST603 Pulsating Brake Fluid BleederRated 0 out of 5(0) From US$209.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Pulsating Brake Fluid ExchangerAUTOOL AST605 Car Pulsating Brake Fluid ExchangerRated 0 out of 5(0) From US$239.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Pulsating Brake Fluid ExchangerAUTOOL AST609 Car Pulsating Brake Fluid Change KitRated 0 out of 5(0) From US$259.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Pulsating Brake Fluid ExchangerAUTOOL AST618 Pulsating Brake Fluid Exchanger Four-Wheel Oil ChangeRated 0 out of 5(0) From US$899.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Pulsating Brake Fluid ExchangerAUTOOL 17-Piece Brake Fluid changer AdaptersRated 0 out of 5(0) From US$90.00 Select options This product has multiple variants. The options may be chosen on the product page Before You Order And UseBefore You Order And UseReview pressure adjustment, leakage checks, hose condition, filler-port cleanliness, and brake master cylinder protection before using AST612.Warm TipsWhen the device leaves the factory, the working pressure of the pressure regulator is set to 1–1.5bar.This setting helps ensure that the liquid storage chamber does not deform while changing fluid, thereby ensuring the tightness of the secondary sealing ring.It is also feasible to exhaust or change liquid at lower working pressure by adjusting the pressure and size switch.In special circumstances, higher working pressure may be used, but excessive pressure adjustment may damage the brake master cylinder of the brake system.Please check each connection for leaks when changing oil.Inspect whether the connecting hose is damaged before and during operation.Keep the new oil filler port clean.No need to start the vehicle during operation.Use suitable brake fluid and avoid contaminating new brake fluid.Brake fluid may damage painted surfaces; clean spills immediately.Questions And AnswersThese answers cover 12V power, two-wheel oil exchange, vehicle start requirement, working pressure, pre-use checks, adapters, pressure release, and AST612 / AST618 selection. Does AST612 Need An External Power Source? No external mains power source is required. AST612 is powered by a DC 12V vehicle battery, so you only need to connect the battery clamp cable to the car battery before operation. Can AST612 Change Brake Fluid In Four Wheels At The Same Time? No. AST612 supports simultaneous two-wheel oil exchange. If you need four-wheel simultaneous brake fluid replacement, choose AST618. Do I Need To Start The Vehicle During Operation? No. The vehicle does not need to be started during AST612 brake fluid exchange operation. What Working Pressure Should I Use? The factory pressure regulator is set to 1–1.5bar to help protect the liquid storage chamber and secondary sealing ring. AST612 working pressure can be referenced around 1.5–3.0bar / 1.5–3kg/cm². Avoid excessive pressure adjustment because it may damage the brake master cylinder. What Should I Check Before Starting Oil Exchange? Check all connections for leakage, inspect the connecting hose for damage, keep the new oil filler port clean, and confirm that the correct adapter is connected to the brake fluid reservoir. During first use, fill the equipment tubing with brake fluid to bleed air from the tubing. How Many Adapters Does AST612 Include? AST612 includes 9 types of adapters to support many European, American, and Asian vehicle models. If you need broader adapter coverage, AST618 includes 17 adapters, and the 17-piece adapter kit is also available separately. What Does The Pressure Release Function Do? After brake fluid replacement is complete, AST612 automatically releases pressure to help prevent brake fluid from splashing. The specification image lists 30 seconds pressure release time. Should I Choose AST612 Or AST618? Choose AST612 if you want a portable 12V two-wheel brake fluid exchanger with 9 adapters. Choose AST618 if you need four-wheel simultaneous brake fluid replacement, 17 adapters, pulse mode and working time settings, 360° wheels, and higher workshop efficiency.Related GuidesRelated GuidesUse these related articles to understand pulsating brake fluid exchangers, brake system maintenance, and AST612 model updates. Guide / 2024-11-25Pulsating Brake Fluid Exchanger ReviewReview pulsating brake fluid exchanger use cases and learn how this type of equipment improves brake fluid service. Guide Guide / 2024-11-12Five brake System maintenance tips! 90% of drivers ignore it!Learn basic brake system maintenance checks that help support safer vehicle operation. Guide / 2024-07-10AST612 brake fluid exchanger Details: New Features Advantages and Old Model-by-Model ReviewExplore AST612 features, advantages, and model-by-model comparison details. Guide / 2025-07-04A Professional Guide to Brake Fluid Changes by System TypeUnderstand how different brake system types affect brake fluid change methods and service planning.Warranty And ContactWarranty And ContactFor AST612 setup, adapter confirmation, pressure adjustment, two-wheel oil exchange, manual support, AST612 / AST618 model selection, or warranty service, contact AUTOOL Store directly.3-Year Warranty And Lifetime MaintenanceFor damage caused by eligible non-human factors, AUTOOL provides 3-year warranty support and lifetime maintenance. If you have questions, contact support for confirmation before operation or purchase.AST612 setup and 12V battery power confirmationAdapter and vehicle compatibility supportPressure adjustment and pressure release confirmationTwo-wheel oil exchange workflow supportManual and packing list confirmationAST603 / AST605 / AST609 / AST612 / AST618 model selection help Email Support[email protected] WhatsApp Support 86 189 2647 7404