2014 Mercedes-Benz S-Class Reliability ReportKeepScore 72/100 · top failure points · buy or avoid
Quick Facts · 2014 Mercedes-Benz S-Class
- Scores 6 points below the strongest nearby year — the 2016 Mercedes-Benz S-Class earns a 78.
- The system most likely to surface first: airmatic/active body control (abc) suspension (major severity).
- No active NHTSA safety recalls on record — a clean recall slate for the 2014 model year.
2014 Mercedes-Benz S-Class: Buy or Avoid?
The 2014 Mercedes-Benz S-Class offers an unparalleled luxury experience, but it demands a robust maintenance budget to truly enjoy its sophisticated engineering. This vehicle is a masterclass in comfort and technology; however, expect a higher frequency of electronic glitches and costly repairs, particularly concerning its advanced suspension system, making careful pre-purchase inspection and ongoing financial planning absolutely critical for prospective owners.
The 2014 Mercedes-Benz S-Class is a truly remarkable luxury vehicle, offering an unparalleled driving and passenger experience. However, its sophisticated systems come with a significant financial commitment for maintenance and potential repairs. This car is a fantastic buy if you understand and budget for its inher…
Best Model Years
2016-2017 (later W222 models generally had some initial bugs resolved and slightly improved reliability statistics)
Years to Avoid
Early production 2014 models may have more initial kinks, but generally, there isn't a 'year to avoid' as much as a need for diligent maintenance across all W222s.
Biggest Strengths
- Exceptional build quality and luxurious materials
- Robust and powerful engine options (when maintained)
- Advanced safety features and driver assistance systems
2014 Mercedes-Benz S-Class — Known Trouble Spots
The systems that tend to fail first on the 2014 Mercedes-Benz S-Class, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
The advanced air suspension system, while providing incredible comfort, is prone to leaks in air springs, strut failures, and compressor wear. These components are expensive to replace, leading to sagging, uneven ride height, and poor ri…
The highly integrated COMAND system, along with various sensors (parking, blind spot, camera), can experience freezing, reboots, or complete failure. Issues like parasitic battery drain are also reported, often stemming from complex modu…
While generally robust, the twin-turbo M278 V8 engine (S550) can suffer from turbocharger oil line leaks, which can lead to oil consumption or even turbo failure. Camshaft adjuster solenoids can also leak or fail, impacting engine timing.
2014 Mercedes-Benz S-Class Mileage Danger Zones
The mileage windows when the 2014 Mercedes-Benz S-Class most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the vehicle is still relatively new. Focus on routine 'A' service (oil, filters) and tire rotation. Any issues are likely manufacturing defects covered by warranty.
Maintenance Zone
This mileage marks a more extensive 'B' service, including spark plugs and transmission fluid. It's also where you might start seeing the first signs of wear on suspension components or complex electronics.
Elevated Risk Zone
Beyond 90k miles, expect components with finite lifespans to begin failing. This includes major suspension items and an increased likelihood of engine or electrical sensor issues. Plan for significant preventive and reactive maintenance.
High Risk Zone
At this stage, nearly every major system is a candidate for repair or replacement. Thorough inspection and a substantial reserve for potential failures are crucial. Major engine work or full suspension overhauls become more probable.
2014 Mercedes-Benz S-Class Ownership Cost Outlook
What it typically costs to keep the 2014 Mercedes-Benz S-Class on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$1,000-2,000 (for routine service and minor fixes)
Moderate Repairs
$1,500-4,000 occasionally (e.g., individual AirMatic strut, major electrical module, turbo lines)
How Long Does the 2014 Mercedes-Benz S-Class Last?
Prioritize a comprehensive pre-purchase inspection regardless of mileage, but be especially diligent after 60,000 miles. Beyond 90,000 miles, factor in the near certainty of needing major suspension and/or engine work in the coming years.
What 2014 Mercedes-Benz S-Class Owners Actually Say
What Owners Love
- Unmatched comfort and ride quality, even on long journeys.
- Powerful acceleration and smooth engine performance.
- Luxurious interior with high-quality materials and craftsmanship.
- Advanced technology features (e.g., active safety, massage seats) enhance the driving experience.
Common Frustrations
- Extremely high cost of routine maintenance and parts.
- Frequent and costly repairs for the complex AirMatic suspension system.
- Infotainment (COMAND) system can be glitchy and frustrating at times.
- Significant depreciation, making it an excellent used car value for buyers but tough for original owners.
Who Should Buy the 2014 Mercedes-Benz S-Class?
Best For
- Luxury enthusiasts seeking ultimate comfort and technology on a budget (for purchase, not ownership)
- Individuals with a healthy discretionary income for ongoing maintenance and repairs
- Drivers who prioritize a serene and isolated driving experience
Not Ideal For
- Budget-conscious buyers looking for low long-term running costs
- Anyone seeking a vehicle for DIY maintenance
How the 2014 Mercedes-Benz S-Class Compares to Rivals
The 2014 S-Class generally offers a more opulent and technologically advanced experience than its direct European rivals, but at the cost of higher complexity and potentially greater long-term maintenance expenses. It significantly outpaces less reliable luxury brands but can'…
More Reliable Than
- Maserati Quattroporte (similar vintage)
- Jaguar XJ (similar vintage)
Comparable To
- BMW 7 Series (F01/F02 generation)
- Audi A8 (D4 generation)
Safety Recalls on the 2014 Mercedes-Benz S-Class
No active NHTSA safety recalls on file for the 2014 Mercedes-Benz S-Class. Always verify with your VIN atnhtsa.gov.
What breaks on the 2014 Mercedes-Benz S-Class?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Mercedes-Benz S-Class — Year-by-Year Comparison
Compare KeepScores across nearby years of the Mercedes-Benz S-Class. Click any year for its full report.
Competing 2014s Worth a Look
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2014 Mercedes-Benz S-Class
Parts and accessories matched to your 2014 Mercedes-Benz S-Class
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Frequently Asked Questions
Just bought a 2014 Mercedes-Benz S-Class? Keep it that way.
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