2023 BMW M340i Maintenance guide
v1.0Updated Ethan Miller4 Sources Analyzed
The 2023 BMW M340i, with a good reliability verdict and an excellent public score of 8.8, requires premium fuel and has an all-wheel-drive, S8 automatic transmission. Owners should prioritize ensuring the single recall concerning the Body Control Module software update is completed.
Reliability Score
Est. Annual Maintenance Cost
$800 - $1,500
TSBs & Recalls
0 TSBs | 1 Recalls
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Key Takeaways
- The 2023 BMW M340i has a good reliability rating with minimal reported issues.
- Regular oil changes with 0W-20 synthetic oil are essential every 10,000 miles.
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Critical service intervals
Common failure analysis
Symptoms and prevention guidance
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MethodologyHow we score →
Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.
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