Exterior Lighting Wiring Harness Issue

A recall addresses missing anti-abrasion protection for rear light wiring harnesses, which can lead to shorts, damage, or electrical faults. Estimated repair cost: $100 - $300.

Rear Axle Lock Nut and Alignment

Recalls have addressed potential issues with rear axle lock nuts and subsequent alignment problems, possibly due to stress corrosion or repair execution. Estimated repair cost: $300 - $700.

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2021 Audi A5 Maintenance guide

Name: Maintenance dataset for 2021 Audi A5
Creator: Carfocal

v1.0Updated Jun 2, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2021 Audi A5 presents an average reliability profile, marked by a significant number of recalls, particularly concerning rear seat belts and exterior lighting. Owners should prioritize addressing these recalls.

View Critical Issue: Rear Seat Belt Retractor Malfunction

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

238 TSBs | 48 Recalls

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Key Takeaways

Prioritize safety recalls, especially those concerning rear seat belts and lighting.
Regular maintenance, including fluid changes and filter replacements, is key.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance