Starter Assembly Failure

Recalls indicate potential corrosion or internal component wear in the starter assembly, leading to overheating and fire risk. This is a critical safety concern. Estimated repair cost: $800 - $1500.

Braking Assist Failure

A critical recall addresses a potential loss of braking assist due to engine management software issues. This significantly impacts vehicle safety. Estimated repair cost: $500 - $1200.

Rearview Camera Software Glitches

Multiple recalls address software issues affecting the rearview camera system's functionality. While low severity, these can impact driver convenience and compliance. Estimated repair cost: $150 - $400.

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2021 BMW X4 Maintenance guide

Name: Maintenance dataset for 2021 BMW X4
Creator: Carfocal

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

MAINTENANCE SUMMARY

The 2021 BMW X4 requires diligent maintenance, with a notable concern around the starter assembly due to potential overheating and fire risk, necessitating regular checks. Key service intervals include regular oil changes and fluid checks, with a combined MPG of 16.

View Critical Issue: Fuel Tank Weld Failure

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Reliability Score

Est. Annual Maintenance Cost

$500 - $900

TSBs & Recalls

1 TSBs | 8 Recalls

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Key Takeaways

Proactive attention to the starter assembly and braking system is crucial due to critical recall issues.
Regular oil and filter changes using 5W-30 synthetic oil are essential for the 3.0L engine.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance