BMW · Known Issues

2020 BMW M8 Problems: 4 Known Issues

2020 model year · 280+ owner reports · Updated August 2026

According to Au7o's analysis of 280+ owner reports, the 2020 BMW M8 has 4 documented known issues, with 1 rated critical. The most serious is S63TU4 Rod Bearing Wear (M8/M8 Competition) ($5,000-$40,000 repair). The most commonly reported issue is S63TU4 V8 Excessive Oil Consumption with 170 owner reports. Across all issues with published estimates, repair costs range from $200 to $40,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common BMW M8 problems?

According to Au7o's analysis of 280+ owner reports, the 2020 BMW M8 has 4 documented issues. The most frequently reported are: S63TU4 Rod Bearing Wear (M8/M8 Competition), S63TU4 V8 Excessive Oil Consumption, Adaptive Suspension Damper Leaks. Of these, 1 is rated critical and should be addressed promptly.

Is the BMW M8 reliable?

The 2020 BMW M8 has 4 known issues documented across 280+ owner reports. 1 issue is rated critical: S63TU4 Rod Bearing Wear (M8/M8 Competition). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common BMW M8 problems?

Repair costs for known BMW M8 issues range from $200 to $40,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, S63TU4 Rod Bearing Wear (M8/M8 Competition), typically costs $5,000-$40,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2020-2024 BMW M8 S63TU4 Rod Bearing Wear (M8/M8 Competition)?

The S63TU4 4.4L twin-turbo V8 in M8 and M8 Competition models suffers from premature rod bearing wear due to tight bearing clearances combined with extreme heat and boost pressure stress. The factory bearings are spec'd with minimal clearance for NVH (noise/vibration/harshness) r… Repairs typically run $5,000-$40,000. Severity: high.

What is the 2020-2025 BMW M8 S63TU4 V8 Excessive Oil Consumption?

The M8 S63TU4 4.4L twin-turbo V8 can consume oil at rates exceeding 1 quart per 1,500 miles, particularly when driven spiritedly. The issue is related to the valve stem seals and piston ring design that allows oil past the rings under high boost and high RPM conditions. BMW consi… Repairs typically run $200-$5,000. Severity: medium.

What is the 2020-2025 BMW M8 Adaptive Suspension Damper Leaks?

The M8 adaptive M suspension dampers can develop leaks from the electronically controlled valving, causing a loss of damping force on the affected corner. The complex internal valving and seals are stressed by the M8's weight and performance demands, leading to premature wear com… Repairs typically run $1,200-$3,500. Severity: medium.

What is the 2020-2024 BMW M8 M8 Carbon Ceramic Brake (CCB) Issues?

M8 and M8 Competition models equipped with the optional Carbon Ceramic Brake (CCB) package experience premature rotor cracking, excessive squealing, and thermal shock damage. Carbon ceramic rotors are sensitive to rapid temperature changes (thermal shock from cold water hitting h… Repairs typically run $3,000-$16,000. Severity: medium.

2020 BMW M8 Problems: 4 Known Issues

All 4 Known Issues

2020-2024 BMW M8: S63TU4 Rod Bearing Wear (M8/M8 Competition)#

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2020-2025 BMW M8: S63TU4 V8 Excessive Oil Consumption#

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2020-2025 BMW M8: Adaptive Suspension Damper Leaks#

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2020-2024 BMW M8: M8 Carbon Ceramic Brake (CCB) Issues#

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Other BMW Models

Frequently Asked Questions

What are the most common BMW M8 problems?

Is the BMW M8 reliable?

How much does it cost to fix common BMW M8 problems?

What is the 2020-2024 BMW M8 S63TU4 Rod Bearing Wear (M8/M8 Competition)?

What is the 2020-2025 BMW M8 S63TU4 V8 Excessive Oil Consumption?

What is the 2020-2025 BMW M8 Adaptive Suspension Damper Leaks?

What is the 2020-2024 BMW M8 M8 Carbon Ceramic Brake (CCB) Issues?