2020 BMW 6 Series 2.0L Diesel · SO16 ANS

MotorEasy's warranty and workshop data for the 6 Series nameplate shows engine faults at 28.9 per cent of all claims with an average bill of £1,615, plus fuel system faults at 10.3 per cent averaging £535. On the G32 that exposure sits on the 630d six-cylinder diesel that made up most UK sales, and on the 640i's turbocharged straight-six. For a used buyer the practical signal is in the service book: extended oil intervals, short-journey diesel duty and a missing DPF regeneration history are what turn a well-sorted GT into a four-figure repair.

The G32 rides on 7 Series-derived running gear with rear air suspension fitted as standard, optional front air suspension and an active roll-control system that Parkers found was fitted to its test car. Suspension accounts for 22.7 per cent of all 6 Series warranty claims at an average of £395, and on a heavy car used for long motorway miles the failure modes are perished air spring bellows, tired compressors and corroded height sensors - all accelerated by UK winter salt. The symptom is usually a car that sits unevenly in the drive rather than a warning light on the motorway.

Parkers measured the G32 as 100kg heavier than a 5 Series Touring or a comparable 7 Series and noted the M Sport option adds upgraded brakes; MotorEasy puts braking system faults at 11.6 per cent of 6 Series claims with an average bill of £353. The Integrated Brake module campaign R/2021/054 covered 139 UK cars built between June 2019 and November 2020 across 7 Series, 8 Series and other models, so check by VIN whether this chassis is included. The sensible used-buyer routine is a disc thickness and pad depth check plus a documented recall position, not just a tread inspection.