Over time, the air suspension system can develop leaks in the air springs or lines, leading to a sagging ride height and potential compressor strain. Estimated repair cost: $400 - $1,500 per corner.

Transmission Fluid Degradation

The automatic transmission fluid can degrade over time, especially under heavy use, leading to shifting issues and premature wear if not serviced. Estimated repair cost: $300 - $600.

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2014 Mercedes-Benz CLS-Class Maintenance guide

Name: Maintenance dataset for 2014 Mercedes-Benz CLS-Class
Creator: Carfocal

v1.0Updated Jun 14, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2014 Mercedes-Benz CLS-Class boasts an excellent reliability verdict with zero recalls or complaints reported. This suggests a low maintenance burden, with routine services like oil changes and fluid checks being the primary focus.

View Critical Issue: Air Suspension Leaks

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Reliability Score

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

0 TSBs | 0 Recalls

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Key Takeaways

Exceptional reliability indicated by zero recalls and complaints.
Routine maintenance, including synthetic oil changes and fluid checks, is paramount.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance