Advice please on cause and long-term solutions to failed seals. About 2 months ago oil leak under 1 year old 1.3 Yaris (owned from new) was diagnosed as labyrinth seal failure, and replaced under warranty. As you might guess, the other side (off-side) now has the same symptoms. I've not found any indication that this a particular fault with the Yaris, but wonder 1, why they've failed, and 2, is there an unrevealed fault that i should press the supplying dealer to investigate? Don't fancy a continuing saga of dripping gearbox oil. Thought with the demise of Norton, total-loss lubrication days were over!
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