BMW · Known Issues

2025 BMW 8 Series Problems: 3 Known Issues

2025 model year · 345+ owner reports · Updated August 2026

According to Au7o's analysis of 345+ owner reports, the 2025 BMW 8 Series has 3 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is N63/S63 V8 Oil Consumption in M850i with 140 owner reports. Across all issues with published estimates, repair costs range from $350 to $5,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common BMW 8 Series problems?

According to Au7o's analysis of 345+ owner reports, the 2025 BMW 8 Series has 3 documented issues. The most frequently reported are: N63/S63 V8 Oil Consumption in M850i, B58 Engine Coolant Loss from Expansion Tank and Water Pump, Adaptive Suspension Damper Malfunction. None are rated critical, but regular maintenance is recommended.

Is the BMW 8 Series reliable?

The 2025 BMW 8 Series has 3 known issues documented across 345+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common BMW 8 Series problems?

Repair costs for known BMW 8 Series issues range from $350 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2019-2025 BMW 8 Series N63/S63 V8 Oil Consumption in M850i?

The M850i equipped with the N63TU4 twin-turbo V8 carries forward the oil consumption tendencies of the N63 engine family, though the TU4 revision is improved over earlier versions. Oil consumption of 1 quart per 3,000-5,000 miles is still common and considered within BMW's specif… Repairs typically run $500-$5,000. Severity: medium.

What is the 2019-2025 BMW 8 Series B58 Engine Coolant Loss from Expansion Tank and Water Pump?

The 840i with B58 inline-six turbo engine experiences coolant loss primarily from the plastic expansion tank cracking and the electric water pump connection failing. The expansion tank develops hairline cracks at the weld seams that are nearly invisible until significant coolant… Repairs typically run $350-$800. Severity: medium.

What is the 2019-2025 BMW 8 Series Adaptive Suspension Damper Malfunction?

The 8 Series equipped with Adaptive M Suspension experiences electronic damper failures, particularly in the rear. The electronically controlled dampers use solenoid valves to adjust firmness in real-time, and these solenoids can fail from fluid contamination or electrical faults… Repairs typically run $800-$2,000. Severity: medium.

2025 BMW 8 Series Problems: 3 Known Issues

All 3 Known Issues

2019-2025 BMW 8 Series: N63/S63 V8 Oil Consumption in M850i#

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2019-2025 BMW 8 Series: B58 Engine Coolant Loss from Expansion Tank and Water Pump#

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2019-2025 BMW 8 Series: Adaptive Suspension Damper Malfunction#

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Other BMW Models

Frequently Asked Questions

What are the most common BMW 8 Series problems?

Is the BMW 8 Series reliable?

How much does it cost to fix common BMW 8 Series problems?

What is the 2019-2025 BMW 8 Series N63/S63 V8 Oil Consumption in M850i?

What is the 2019-2025 BMW 8 Series B58 Engine Coolant Loss from Expansion Tank and Water Pump?

What is the 2019-2025 BMW 8 Series Adaptive Suspension Damper Malfunction?