Recalls indicate a risk of fuel tank weld failure, potentially leading to fuel leaks. This is a critical safety concern. Estimated repair cost: $500 - $1,500.

Starter Assembly Fire Risk

Recalls have been issued for starter relay corrosion and starter overheating, posing a fire risk. Prompt attention to these recalls is essential. Estimated repair cost: $400 - $800.

Loss of Braking Assist

A software recall addresses potential loss of braking assist during engine start. A software update is the typical remedy. Estimated repair cost: $200 - $500.

CARFOCALvehicle research

2021 BMW Z4 Maintenance guide

Name: Maintenance dataset for 2021 BMW Z4
Creator: Carfocal

v1.0Updated Jun 4, 2026Ryan Davis4 Sources Analyzed2 Critical Recalls

MAINTENANCE SUMMARY

The 2021 BMW Z4, with an average reliability verdict, requires diligent attention to its fuel system and starter assembly due to significant recall history. Regular inspections and adherence to service intervals are crucial for this rear-wheel-drive, 6-cylinder roadster.

View Critical Issue: Fuel System Leaks

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

2 TSBs | 7 Recalls

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Key Takeaways

Focus on addressing recalls related to fuel system integrity and starter assembly fire risk.
Regular oil changes with 0W-20 synthetic oil are essential.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance