BMW 7 Series2016

Known issues

• Battery capacity loss and charging system faults; expect 10-15% degradation by 80,000 miles, reducing electric range to 15-20 miles real-world from claimed 31 miles
• High-voltage battery thermal management module failures causing warning lights and inability to charge; can cost €3,500–€5,500 to replace
• Turbo petrol engine carbon buildup and direct injection fouling; carbon cleaning recommended every 40,000–60,000 miles at €400–€800
• DSG 8-speed automatic gearbox shudder and hesitation during low-speed manoeuvres and creep; software updates sometimes help but not guaranteed
• Integrated electronics failures (infotainment, battery management control modules); CAN-bus communication dropouts common after 80,000+ miles
• Water ingress into rear light clusters and door seals causing electrical shorts and module failures

Good for

• Exceptional comfort and refinement on longer journeys; excellent sound insulation and suspension compliance
• Fuel economy if regularly charged (can return 50+ mpg combined with short commutes under 20 miles daily)
• Luxury interior, performance, and smooth electric motor assist acceleration when battery charged
• Low emissions credentials and potential tax incentives in Ireland (older PHEV grants may apply to owner dependent on purchase date)