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Autool  |  SKU: SC301

Autool SC301 | Coolant Tester & Bleeder

Regular price €30995

Warranty handled directly by AsTools

We handle warranty cases ourselves, quickly and without the intervention of the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually help you immediately. Only in exceptional cases do we still send the product to the supplier.

2 years warranty on all products

All our products come with a 2-year factory warranty. This way, you are assured of long-lasting quality and service.

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The Autool SC301 is a combined coolant tester and bleeder, designed for maintaining vehicle cooling systems. The device operates on a DC 12V power supply and uses an external compressed air source to create a vacuum in the cooling system. The SC301 has two main modes: a fill mode for vacuum refilling coolant and a test mode for detecting leaks by vacuum.

The control panel features digital displays and LED indicators showing the process status. There are three adjustable pressure levels (-35 kPa, -40 kPa, and -45 kPa) to adapt the test to the vehicle's condition. A built-in pressure protection prevents damage to cooling system components from excessive vacuum. The device comes with three universal conical Adapters for broad compatibility with various vehicle models.


Application and functionality:

The SC301 is developed for performing diagnosis and maintenance on vehicle cooling systems using vacuum technology.

  • Leak detection mode: In this mode, the cooling system is put under vacuum. The device then monitors whether the pressure remains stable. A green LED indicator ("NO LEAKAGE") confirms the system is sealed, while a red LED indicator ("LEAKAGE") indicates a leak.
  • Fill mode: This function first evacuates the cooling system to remove all air. Then the system is automatically and bubble-free filled with new coolant. The process stops automatically and gives an audible signal when filling is complete.
  • Adjustable pressure: The user can choose from three preset vacuum levels, allowing the test to be tailored to the age and condition of the cooling system.
  • Drain valve: Equipped with a drain valve to remove remaining fluid from the internal pipes of the device after use, preventing contamination during the next refill.

Package Contents:

  • 1x Autool SC301 main unit
  • 1x Power cable with battery clamps
  • 3x Conical Adapter (33 mm, 41 mm, 52 mm)
  • 1x Manual

Technical specifications:

Specification Description
Brand Autool
Model SC301
Power supply DC 12V
Adjustable vacuum -35 kPa, -40 kPa, -45 kPa
Pressure range -1 to -2 bar
Length of filling hose 2 m
Length of liquid inlet hose 0,5 m
Length of air exhaust hose 1 m
Operating temperature -10°C to 60°C
Product dimensions (L x W x H) 302 x 167 x 355 mm
Package Contents 7,2 kg