The N63 engine's "hot-vee" design, which places the turbochargers inside the cylinder bank, creates immense heat-soak. This excessive heat causes the rubber valve stem seals to harden, crack, and fail prematurely.
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The class action settlement covers US-specification 2009–2014 models with the N63 twin-turbo V8 engine, including: The N63 engine's "hot-vee" design, which places the
Gran Turismo (F07) 2010-2012, Sedan (F10) 2010-2013 The N63 engine's "hot-vee" design
BMW Valve Stem Seal Issues: N63 Engine Oil Consumption Lawsuit Explained
Up to three free oil consumption tests/inspections.