A coolant expansion header tank bottle with cap for Audi A3, TT, Q3, VW Golf MK5, and MK6. Compatible with various models like Beetle, CC, Golf, GTI, Passat, TTS Quattro, Q3 Quattro, and more. Made of durable plastic, it is performance-tested and leak-tested for reliability. No drilling or modifications required for installation. Manufacturer warranty of 6 months included.
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