I just bought a used BMW 335i xdrive 2015 with 40,000 miles with a "rebuilt" title due to water damage. Fact: At 40,000 miles there is a vibration in certain RPM and MPH combinations. Fact: I took it to Newbold and was told the transmission was leaking through the casing, not a gasket but right through the metal casing of the body of the transmission. Fact: Sales representative said he had heard of this problem before and admitted it was a flaw in the design and/or production of the transmission. The metal was porous. Fact: The repair cost would be $11,600 and that did not even guarantee to fix the problem of the vibration and that may require $2200 drive shaft. Fact: Due to policy they would not honor any warranty because of the (unrelated to the transmission) previous damage. Fact: Then to add salt to the wound the sales rep. basically blamed me for buying it from an individual instead of them. Opinion: It doesn't matter who I bought it from, it was a BMW, not a Gremlin. If it has a design flaw that is not my fault, that is BMWs fault. For them to hide behind a warranty policy instead of owning their mistake in design or production is a simply unethical and pernicious. (Or to use a modern colloquialism, Chicken S**t.) That car sold for $55,000 and yet was un-drivable at only 40,000 miles.
— Tom Skaff