Unveiled in late 2011, the BMW 6 Series Coupé F13 blended muscular road presence with a stiffer body shell and sharper chassis responses than its convertible sibling. Conceived as a high-speed continental express, it outclasses typical executive saloons in dynamic elegance. Ensuring this heavyweight GT remains reliable requires structured BMW 6 Series maintenance focusing on engine heat management and suspension hardware.
The six-cylinder models - the petrol 640i (N55) and twin-turbo diesel 640d (N57) - are mechanically dependable long-distance machines, paired with the buttery eight-speed ZF 8-speed automatic gearbox. The flagship 650i V8 features the twin-turbo N63 unit, which requires strict scrutiny of oil consumption, valve stem seals and auxiliary cooling system pumps mounted inside the hot-vee valley.
The two-tonne GT places immense strain on front lower wishbones, control arm hydro-bushes and wide performance tyres. A well-maintained F13 should track dead straight, stop without steering shudder and deliver whisper-quiet high-speed cruising.