I don't know if they lied. They may have simply lived and learned. I take these lifetime fill claims to mean the lifetime of the warranty. A lot of people probably believe it means the fluid never needs changing, but I don't think that's true on any car.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL