The 5 Series is BMWs executive flagship. F10 N47 diesel timing chain is the headline concern. G30 significantly improved. This guide tells you exactly which to buy and what to check.
This Buying Guide guide combines structured analysis β verdicts, risk scoring and cost ranges where we have enough data β with real fault cases pulled directly from MyCarFault's reporting database, so the guidance below reflects what owners actually experience rather than manufacturer specifications alone. Background and analysis come first, followed by the linked fault reports and related guides you can jump to directly using the links above.
The BMW 5 Series delivers the most driver-focused experience in the executive car class. As a used purchase it requires careful selection β the F10 generation carries the N47 timing chain legacy, while the G30 represents a genuine step forward in reliability. Both need proper inspection before purchase.
buy_g30
Yes β budget Β£1,200-1,800/year for servicing and incidentals at an independent BMW specialist. Main dealer costs are 40-60% higher.
F10 520d and 518d with N47 engine without confirmed timing chain replacement. These are high-risk purchases.
Yes on reliability grounds. The N47 timing chain issue alone justifies the premium on G30.