BMW 5 Series 535d.
What to Check Before Buying.

The BMW 5 Series 535d suits buyers seeking executive comfort with strong performance, offering an appealing blend of refinement and pace through its 3.0-litre twin-turbo diesel engine producing around 299bhp. This variant particularly appeals to high-mileage drivers who value motorway economy alongside genuine acceleration, though running costs including road tax and servicing can be substantial. The 535d is known for its impressive torque delivery and smooth eight-speed automatic gearbox, but the twin-turbo setup and complex diesel emissions systems mean potential repair bills can be significant if neglected. When inspecting used examples, check for complete service history with evidence of oil changes using the correct BMW Longlife specification, as the twin-turbo engine is sensitive to poor maintenance. Examine the diesel particulate filter for regeneration issues, particularly on cars used primarily for short journeys. Inspect the air suspension (if fitted) for leaks or uneven ride height, and ensure all electrical systems function correctly as faults can be expensive to diagnose. A comprehensive pre-purchase inspection is strongly recommended given the technical complexity of this high-performance diesel variant.

The average used car has 3+ known model faults the seller won't mention.