2006 Mercedes-Benz S-Class S350 4dr Sedan (3.7L 6cyl 5A)
We had several costly items right after warranty period though the mileage was still only just over 30k, we had to replace valve gasket, airmatic air pump and relay, and recently (37k) replace air injection pump and relay. reliability is much worse than any other MB we owned or had owned.
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