BMW 5 Series2018

Known issues

• Battery capacity loss over time; expect 5–15% degradation by 80,000 miles depending on charging habits and climate
• High-voltage charging system faults and faulty charging port connectors causing inability to charge or charge slowly
• Hybrid transmission shudder during low-speed electric-to-petrol handover, especially in stop-start traffic
• 12V auxiliary battery discharge issues leading to complete electrical failures; original Varta battery prone to premature failure
• Turbo petrol engine carbon build-up and timing chain tensioner wear on direct-injection variant; expensive remedial cleaning or engine work
• Water ingress into tailgate area causing corrosion and parasitic battery drain

Good for

• Excellent combined performance: 313 hp total output with smooth acceleration and refinement when hybrid system engages
• Low official CO₂ emissions and road tax benefit (VED) when first registered; appeals to company-car buyers
• Comfortable, spacious saloon interior with high-quality materials and advanced infotainment
• Efficient electric-only driving (up to 30 miles) for short city commutes when battery is charged