General description Cooling System Adaptor for VAG vehicles fitted with M62 x 3mm thread, designed to facilitate pressure testing of the cooling system. Technical specifications Thread size: M62 x 3mm Compatibility and accessories Compatible with late VAG vehicles featuring an internal M62 x 3mm thread Cap No 23: Beetle (from 2011), Caddy Mk III, IV, Golf Mk V, VI, VII, Jetta Mk III, IV, Passat (2007 - 2014), Tiguan (from 2008) Use with Laser Cooling System Pressure Test Kit (Part No. 5614) or other common pressure test kits