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A. It is a pair of additional cooling system cap adaptors that update 331595V2 kits for newer BMW, Chevrolet, Saab and Vauxhall models.
A. It extends coverage to BMW 3 Series and various Chevrolet, Mini and Vauxhall models including Orlando, Sonic, Spark, Trailblazer, Adam, Astra J, Insignia, Meriva B, Mokka and Zafira Tourer.
A. They are used with the 331595V2 “315 Series Cooling System Test Kit” to bring its coverage up to current applications.
A. Newer vehicles can use different expansion tank caps; adding these adaptors lets existing testers connect correctly without buying an entire new kit.
A. They should consult the application list that maps each adaptor to specific vehicle models or cap types.
A. It allows accurate pressure testing and leak diagnosis on a broader range of BMW, Chevrolet, Mini and Vauxhall cooling systems.
A. Store them in the tester’s case or a labelled adaptor tray indicating their part number and vehicle coverage.
A. Correct adaptors ensure a proper seal and accurate pressure readings, avoiding leaks that could give misleading diagnostic results.
A. Check sealing faces and threads for damage and confirm the adaptor locks properly onto the expansion tank.
A. Phrases like “cooling cap set V2 onwards 33159800”, “315 series tester BMW Chevrolet caps” or “Sykes Pickavant cooling cap adaptors” are likely."
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