Cooling System Pressure Tester Kit, 32 pcs

This 32-piece cooling system pressure tester kit is designed for fast and reliable leak detection in automotive cooling systems. The system can be pressurized using either the supplied manual hand pump or a compressed air system, making it suitable for a wide range of workshop applications.

The comprehensive adapter assortment covers most European and Asian vehicle manufacturers, eliminating the need to purchase multiple individual adapters.

Pressure Testing

The included hand pump allows precise pressure testing with a measuring range of 0–2.5 bar (0–35 psi).

For faster testing, the supplied compressed air regulator with integrated safety valve can be connected to a workshop air supply. The regulator features a pressure gauge with a measuring range of 0–5 bar (0–70 psi).

Both methods allow reliable inspection of radiators, coolant hoses, expansion tanks, water pumps, heater cores and other cooling system components for leaks.

Wide Vehicle Coverage

The kit includes vehicle-specific adapters for numerous manufacturers, including:

• Mercedes-Benz
• Audi
• Volkswagen
• BMW
• Ford
• Opel
• Volvo
• Renault
• Peugeot
• Citroën
• Fiat
• Honda
• Toyota
• Mitsubishi
• Nissan
• Mazda
• Hino
• Other European and Japanese vehicles

Additional universal adapters further expand vehicle compatibility.

Scope of Delivery

• 1 × Hand pump with hose and quick-connect coupling
• 1 × Air pressure regulator with safety valve for compressed air testing
• 1 × Adapter for Mercedes-Benz, Ø 60 mm internal thread
• 1 × Adapter for Audi A4, A5, A6 (new models), Ø 62 mm external thread
• 1 × Adapter for Opel / Ford, Ø 48 mm internal thread
• 1 × Adapter for BMW, Ø 57 mm external thread
• 1 × Adapter for BMW, Ø 49 mm internal thread
• 1 × Adapter for Volvo / Citroën / Fiat / Renault / Peugeot, Ø 45 mm internal thread
• 1 × Adapter for Audi / Volkswagen, Ø 43 mm internal thread
• 1 × Adapter for Honda / Toyota, Ø 42 mm spring-lock cap
• 1 × Adapter for Mitsubishi / Ford / Nissan / Mazda, Ø 44 mm spring-lock cap
• 1 × Adapter for Ford, Ø 52 mm standard cap
• 1 × Adapter for Ford, Ø 56 mm standard cap
• 1 × Adapter for Mercedes-Benz, Ø 50 mm internal thread
• 1 × Adapter for Ford, Ø 49 mm internal thread
• 1 × Adapter for Ford (2010 onwards)
• 1 × Adapter for Toyota / Honda
• 1 × Adapter for Mitsubishi / Ford / Nissan / Mazda
• 1 × Adapter for Nippon / Hino caps
• 1 × Adapter for Renault / Audi / Volkswagen
• 1 × Adapter for Volvo / Citroën / Renault / Fiat / Peugeot
• 1 × Adapter for Opel / Volkswagen / Ford
• 1 × Adapter for Volvo / Renault
• 1 × Adapter for BMW
• 1 × Adapter for Mercedes-Benz
• 1 × Adjustable universal spring adapter
• 1 × Adapter for Japanese and European vehicles, Ø 50 mm
• 1 × Adapter for Japanese and European vehicles, Ø 35 mm
• 1 × Adapter for Japanese and European vehicles, Ø 27 mm
• 2 × Universal adapters
• 1 × Stainless steel U-clamp

Manual Cooling System Pressure Test

Important: Always refer to the vehicle manufacturer's service information or workshop manual for detailed instructions and the correct test pressure.

Warning: Do not apply excessive pressure to the cooling system. Over-pressurizing may damage the radiator, hoses, seals, or other cooling system components.

Carefully loosen and remove the radiator cap or coolant expansion tank cap. Never open the cooling system while it is still under pressure. If the cap is hot, use protective gloves or a cloth to avoid burns.

Select the appropriate adapter and configuration for the vehicle, ensuring it fits securely onto the radiator or expansion tank filler neck.

Connect the hand pump to the installed adapter.

Operate the hand pump while monitoring the pressure gauge. A typical test pressure is 0.8–1.0 bar, but always follow the pressure specified by the vehicle manufacturer.

If the pressure is below the specified value or drops during the test, the cooling system has a leak. Inspect components such as the radiator, coolant hoses, water pump, and other cooling system parts to locate the source of the leak.

Once the test is complete, release the pressure using the pressure release valve on the hand pump. Disconnect the pump, remove the adapter, and reinstall the radiator or expansion tank cap securely.

Compressed Air Pressure Test

Warning: The compressed air supply pressure must be below 1.7 bar before connecting the tool to the cooling system.

Follow the same preparation steps as for the manual pressure test.

Ensure the air control valve is fully closed.

Connect the compressed air supply to the air inlet.

Attach the quick coupling to the installed adapter.

Slowly open the air control valve until the pressure gauge indicates the required test pressure specified by the vehicle manufacturer.

After the test has been completed, fully close the air control valve, disconnect the compressed air supply, and carefully reopen the valve to release any remaining pressure.

Finally, reinstall the radiator or expansion tank cap securely.

Radiator Cap Pressure Test

The radiator or expansion tank cap can also be tested using the appropriate adapter.

Connect the cap to the adapter and apply pressure with the hand pump to determine the cap's pressure release value.