Incomplete Subframe Welds

Concerns regarding incomplete welds on the front subframe. While classified as low severity, this could compromise structural integrity over time. Estimated repair cost: $500 - $2,000 (if replacement needed).

General TSBs and Potential Electrical/Powertrain Issues

A high number of Technical Service Bulletins (TSBs) suggests potential for various complex issues, including electrical glitches or powertrain anomalies that may not always lead to a recall or formal complaint. Estimated repair cost: $200 - $1,000+.

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2018 Maserati Quattroporte Maintenance guide

Name: Maintenance dataset for 2018 Maserati Quattroporte
Creator: Carfocal

v1.0Updated Jun 16, 2026Daniel Wilson4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Maserati Quattroporte demands diligent maintenance, with a notable concern around potential fuel leaks from delivery pipes and structural weld integrity. Owners should prioritize ensuring recall remedies are completed.

View Critical Issue: Fuel Delivery Pipe Leaks

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Reliability Score

Est. Annual Maintenance Cost

$800 - $1,500

TSBs & Recalls

18 TSBs | 2 Recalls

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Key Takeaways

Prioritize completion of recalls related to fuel delivery and subframe welds.
Regular oil changes with high-quality synthetic oil are essential.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance