The tester pressurises the cooling system through the radiator cap or expansion bottle to roughly 1-2 bar (the system's normal hot operating pressure). Leaks become visible as drops in gauge pressure over time, often locating the leak by audible hissing or visible coolant emergence. Pressure testing is also used to confirm a successful repair before refilling. The kit's adapter set must include the correct cap or filler-neck adapter for your vehicle type.
A drain-and-refill empties the coolant from the radiator drain plug and refills with fresh fluid — fast but leaves around 30-50% of old coolant in the engine block, heater core, and hoses. A flushing system uses a pump or pressure-feed adapter to circulate flushing fluid through the entire system, displacing the old coolant completely. Flushing is recommended at major service intervals or when switching coolant types; drain-and-refill suffices for routine top-ups.
Modern automotive cooling systems use spring-clamps and band-clamps in roughly equal measure. Spring-clamp pliers (also called hose-clamp pliers or constant-tension clamp pliers) compress the spring clamp to release or refit it. Band-clamp pliers (sometimes Oetiker pliers) release the stamped-band clamps used on many European and Japanese vehicles. A trade workshop typically has both designs in the kit; the product page shows which clamp type each tool fits.
Yes. HGV and plant-equipment radiator caps run higher system pressures (typically 1.5-2.0 bar) and use larger filler-cap diameters than automotive systems. Pressure testers with HGV adapter sets are available, covering the common cap diameters and thread patterns used across European and American truck applications. Match the adapter kit to your typical vehicle mix.
Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.
Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.
The tester pressurises the cooling system through the radiator cap or expansion bottle to roughly 1-2 bar (the system's normal hot operating pressure). Leaks become visible as drops in gauge pressure over time, often locating the leak by audible hissing or visible coolant emergence. Pressure testing is also used to confirm a successful repair before refilling. The kit's adapter set must include the correct cap or filler-neck adapter for your vehicle type.
A drain-and-refill empties the coolant from the radiator drain plug and refills with fresh fluid — fast but leaves around 30-50% of old coolant in the engine block, heater core, and hoses. A flushing system uses a pump or pressure-feed adapter to circulate flushing fluid through the entire system, displacing the old coolant completely. Flushing is recommended at major service intervals or when switching coolant types; drain-and-refill suffices for routine top-ups.
Modern automotive cooling systems use spring-clamps and band-clamps in roughly equal measure. Spring-clamp pliers (also called hose-clamp pliers or constant-tension clamp pliers) compress the spring clamp to release or refit it. Band-clamp pliers (sometimes Oetiker pliers) release the stamped-band clamps used on many European and Japanese vehicles. A trade workshop typically has both designs in the kit; the product page shows which clamp type each tool fits.
Yes. HGV and plant-equipment radiator caps run higher system pressures (typically 1.5-2.0 bar) and use larger filler-cap diameters than automotive systems. Pressure testers with HGV adapter sets are available, covering the common cap diameters and thread patterns used across European and American truck applications. Match the adapter kit to your typical vehicle mix.
Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.
Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.
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