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AUTOOL SC301 Automotive Coolant Leak Detector and Filler
AUTOOL SC301 Automotive Coolant Leak Detector and Filler
cooling system
automotive cooling systems
AUTOOL SC301 Automotive Coolant Leak Detector and Filler
cooling system
automotive cooling systems
cooling system
coolant pressure tester
automotive cooling systems
coolant pressure tester
  1. AUTOOL SC301 Automotive Coolant Leak Detector and Filler
  2. AUTOOL SC301 Automotive Coolant Leak Detector and Filler
  3. cooling system
  4. automotive cooling systems
  5. AUTOOL SC301 Automotive Coolant Leak Detector and Filler
  6. cooling system
  7. automotive cooling systems
  8. cooling system
  9. coolant pressure tester
  10. automotive cooling systems
  11. coolant pressure tester

AUTOOL SC301 Automotive Coolant Leak Detector and Filler

(7 customer reviews)

US$350.00

Key Features
  • Dual Modes
  • Three Pressures
  • Leak Indicators
Key Features
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AUTOOL SC301

Product Overview

The AUTOOL SC301 is a 2-in-1 automotive cooling system tester and coolant vacuum filler for cooling system vacuuming, coolant filling, and pressure leak detection. It uses vacuum extraction and pressure-holding detection to help users check cooling system sealing, remove air pockets, and refill coolant more efficiently with one-person operation.

Cooling System Vacuuming Coolant Filling Pressure Leak Detection Smart Control Panel
DC 12VPower Supply
-35 / -40 / -45KPaPressure Levels
-1~2barPressure Range
3 YearsMain Unit Warranty
AUTOOL SC301 cooling system tester and filler main product image Click to enlarge
Before You Order And Use

Before You Order And Use

Confirm the power supply, air compressor, coolant type, radiator temperature, and drain-valve position before testing or filling a cooling system.

DC 12V Only

Use a car battery or DC 12V power supply. Do not connect the SC301 to 24V, 110V, 220V, or 380V power.

Air Compressor Required

Connect the air inlet hose to an external air compressor. A compressor rated around 0.7MPa or higher is recommended before operation.

Vehicle Ignition Not Required

The cooling system test and coolant filling process does not require starting the vehicle.

Cool Before Opening

Before opening the radiator cap or coolant reservoir, make sure the radiator and cooling system have cooled down.

Use Suitable Coolant

Avoid low-quality coolant. Do not mix coolants with different performance specifications, and do not add undiluted coolant directly in low-temperature conditions.

Use Lower Pressure For Older Vehicles

For older vehicles or aging cooling system parts, choose a lower pressure level instead of higher settings.

Safety And Setup Notes

  • Use the SC301 only for automotive cooling system testing and coolant filling.
  • Open the drain valve before starting Testing Mode or Filling Mode. The valve is open when it aligns parallel to the air hose.
  • Operate in a well-ventilated area and avoid inhaling gas during leak detection.
  • Inspect the equipment before use. If damage is found, stop using the machine and arrange qualified repair.
  • When draining residual coolant, work in an open area or use a container to collect the liquid.
Key Features

Key Features

SC301 combines leak detection, coolant vacuuming, automatic filling, adjustable pressure levels, clear leak indicators, and adapter-based vehicle compatibility in one automated cooling system service tool.

Two Operation Modes

Filler Mode removes residual air and refills coolant. Tester Mode checks cooling system sealing through vacuuming and pressure holding.

Automatic Coolant Filling

After vacuuming is complete in Filling Mode, the machine automatically starts adding coolant to the cooling system.

Pressure Leak Detection

In Testing Mode, the machine enters pressure-holding detection and provides an automatic leak indication after the hold period.

Three Pressure Settings

Choose -35KPa, -40KPa, or -45KPa based on the working condition and vehicle configuration.

Digital Control Panel

The panel separates Filling Mode and Leak Detection Mode, with digital display, pressure knob, working indicator, and start/stop buttons.

Red And Green Indicators

A green light indicates no leakage. A red light indicates leakage, helping users judge cooling system status more quickly.

One-Person Operation

The high-automation workflow helps reduce manual effort and supports faster coolant replacement and cooling system inspection.

Wide Adapter Support

Three adapter fittings help connect the tool to many common coolant reservoir openings for filling and leak detection.

Warranty And Maintenance

The main unit is covered by a 3-year warranty, and included accessories are covered by a 1-year warranty under eligible conditions.

AUTOOL SC301 smart control panel with filling mode and leak detection mode Click to enlarge
AUTOOL SC301 leak detection mode with 60 second pressure holding and red green indicators Click to enlarge
AUTOOL SC301 filling mode with automatic coolant filling after vacuuming Click to enlarge
AUTOOL SC301 three pressure levels minus 35 minus 40 and minus 45 KPa Click to enlarge
Applications

Applications

SC301 is designed for automotive cooling system leak detection and coolant filling. The included adapter fittings help fit many common coolant reservoir openings, but vehicle fitment should still be confirmed before use.

Cooling System Leak Check

Use Testing Mode to help check main cooling system pipelines, engine coolant hoses, heater cores, and related cooling system sections.

Coolant Replacement

Use Filling Mode to vacuum the system and add coolant, helping reduce air mixed into the cooling system during refilling.

Three Adapter Sizes

The package image and adapter image show three fittings marked around 33mm, 41mm, and 52mm for different reservoir openings.

Most Vehicle Cooling Reservoirs

The universal adapter design supports many vehicle models, but it should not be described as fitting every vehicle without checking the reservoir opening.

AUTOOL SC301 three cooling system adapter fittings for wide vehicle application Click to enlarge
How To Use

How To Use

Follow the setup order, select Testing Mode or Filling Mode, use the correct pressure level, and drain residual coolant safely after service.

Basic Setup

Connect the air compressor hose to the air source input. Open the drain valve, place the air source output hose into a used coolant recovery container, place the liquid input hose into the new coolant container, connect the filling hose to the vehicle coolant reservoir with the proper adapter, connect to a 12V battery, then select the mode and start.

Mode Display Logic

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.

AUTOOL SC301 operating instructions showing air compressor coolant container adapter 12V battery and mode selection Click to enlarge

Testing Mode

  • Vehicle ignition is not required.
  • Open the drain valve before operation.
  • Connect to a car battery or DC 12V power supply.
  • Connect the air inlet hose to the air compressor.
  • Select -35KPa, -40KPa, or -45KPa.
  • Press Start/Stop to begin vacuuming.
  • The machine enters 60-second pressure holding after vacuuming.
  • Green light means no leakage; red light means leakage.

Filling Mode

  • After Testing Mode, select Filling Mode to add coolant.
  • Connect the filling hose to the vehicle.
  • Place the coolant inlet hose into the coolant container.
  • Choose a suitable pressure gear.
  • Use lower pressure for older vehicles.
  • Press Start/Pause to start vacuuming.
  • After vacuuming, the machine automatically fills coolant.
  • Press Stop after filling is complete, then disconnect the connector.

Drain Operation

  • Drain residual coolant in an open area or collect it with a container.
  • After disconnecting from the vehicle, close the drain valve by turning it downward.
  • Press and hold the Tester Mode Start button until the buzzer sounds, then release.
  • Press Tester Mode Start to clean internal pipes.
  • Liquid will discharge from the filling port.
  • When no liquid comes out, press Tester Mode Stop, power off, and remove the compressed air hose.

Operation Reminders

  • In Filling Mode, if filling is not complete after one cycle, multiple filling cycles can be performed.
  • If no coolant enters within two minutes during Filling Mode, the machine displays a fault reminder.
  • In Testing Mode, if the selected vacuum level cannot be achieved and maintained, the machine switches to pressure-holding mode within two minutes and displays a fault reminder.
  • After use, clean residual coolant from internal pipes according to the drain operation steps.
Specifications

AUTOOL SC301 Specifications

Review the SC301 power, pressure, hose length, dimensions, adapter, and interface information before operation.

Core Specifications
ProductAUTOOL SC301 Cooling System Tester & Filler
Main FunctionsCooling system vacuuming, coolant filling, and pressure leak detection
Power SupplyDC 12V
Manual Power RatingDC 12V / 5A
External Air SourceExternal air compressor required; around 0.7MPa or higher recommended
Pressure Range-1~2bar
Selectable Vacuum Pressure-35KPa / -40KPa / -45KPa
Operating Temperature-10°C~60°C shown on the specification image; confirm with the latest manual if operating outside this range
Hose Length And Size
Liquid Input Hose Length0.5m
Filling Hose Length2m
Air Outlet Hose Length1m
Product DimensionsFront view: 302 × 260 × 355mm; side view: 217 × 167 × 355mm
Packaging Dimensions370 × 310 × 416mm
Packaging Weight7.2kg
Main Interface And Indicators
Panel ControlsPressure level display, working indicator, adjustment knob, Start/Pause button, Stop button, Start/Stop button
IndicatorsGreen No Leakage indicator and red Leakage indicator
Ports And ValvesAir source input port, drain valve, air source output port, liquid input port, DC12V power port, and filling port
Adapter FittingsThree adapters shown around 33mm, 41mm, and 52mm for many common coolant reservoir openings
AUTOOL SC301 product specifications including DC12V pressure range hose length temperature dimensions and weight Click to enlarge
AUTOOL SC301 product structure diagram with handle display indicators ports and filling port Click to enlarge
Core Specifications
ProductAUTOOL SC301 Cooling System Tester & Filler
Main FunctionsCooling system vacuuming, coolant filling, and pressure leak detection
Power SupplyDC 12V
Manual Power RatingDC 12V / 5A
External Air SourceExternal air compressor required; around 0.7MPa or higher recommended
Pressure Range-1~2bar
Selectable Vacuum Pressure-35KPa / -40KPa / -45KPa
Operating Temperature-10°C~60°C shown on the specification image; confirm with the latest manual if operating outside this range
Hose Length And Size
Liquid Input Hose Length0.5m
Filling Hose Length2m
Air Outlet Hose Length1m
Product DimensionsFront view: 302 × 260 × 355mm; side view: 217 × 167 × 355mm
Packaging Dimensions370 × 310 × 416mm
Packaging Weight7.2kg
Main Interface And Indicators
Panel ControlsPressure level display, working indicator, adjustment knob, Start/Pause button, Stop button, Start/Stop button
IndicatorsGreen No Leakage indicator and red Leakage indicator
Ports And ValvesAir source input port, drain valve, air source output port, liquid input port, DC12V power port, and filling port
Adapter FittingsThree adapters shown around 33mm, 41mm, and 52mm for many common coolant reservoir openings
AUTOOL SC301 packing list with main unit retail box power cable adapters and user manual Click to enlarge
What Is In The Box

What Is In The Box

The package image shows the SC301 main unit and included accessories. Coolant and the external air compressor are not included.

Main UnitAUTOOL SC301 cooling system tester and filler
Retail BoxSC301 product packaging shown in the package image
Power CableDC 12V battery clamp power cable
AdaptersThree coolant reservoir adapter fittings shown in the package image
HosesHoses shown with the SC301 main unit for coolant filling and air connection
DocumentationUser manual
Manual And Downloads

Manual And Downloads

Download the SC301 manual for setup, power supply, air compressor connection, testing mode, filling mode, drain operation, maintenance, and warranty information.

AUTOOL SC301 cooling system tester and filler user manual preview Click to enlarge

AUTOOL SC301 Cooling System Tester & Filler Manual

Open the PDF manual for operation instructions, product structure, technical parameters, maintenance, and warranty details.

Download Manual

Need Setup Confirmation?

Contact AUTOOL Store before ordering if you need to confirm air compressor requirements, adapter fitment, coolant filling process, pressure level selection, package contents, or troubleshooting.

Emailsupport@autoolstore.com WhatsApp+86 189 2647 7404

Questions And Answers

These answers cover power supply, air compressor use, pressure level selection, Testing Mode, Filling Mode, adapters, coolant requirements, package contents, and warranty.

Warranty And Contact

Warranty And Contact

For SC301 setup, air compressor requirements, adapter fitment, coolant filling issues, leak indicator questions, drain operation, package contents, maintenance, or warranty support, contact AUTOOL Store directly.

Pre-Sales And Product Support

Use support if you need help confirming whether SC301 is suitable for your vehicle cooling system, which pressure level to choose, how to connect the air compressor, how to drain residual coolant, or how to troubleshoot filling and pressure-holding reminders.

  • 3-year warranty for the main unit under eligible conditions
  • 1-year warranty for included accessories under eligible conditions
  • DC 12V power and air compressor setup confirmation
  • Adapter size and vehicle reservoir fitment confirmation
  • Testing Mode, Filling Mode, and drain operation guidance
  • Coolant filling fault reminder and leak indicator troubleshooting
  • Packing List and accessory confirmation
Email Supportsupport@autoolstore.com WhatsApp Support+86 189 2647 7404

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AUTOOL SC301 Automotive Coolant Leak Detector and Filler
AUTOOL SC301 Automotive Coolant Leak Detector and Filler

US$350.00

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