2014 Mercedes-Benz S-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict
Sell your car for what it's worth.
Every receipt, every service, one signed PDF you hand the buyer. OSC is the paperwork trail your resale price depends on.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
Quick Facts · 2014 Mercedes-Benz S-Class
- No active NHTSA safety recalls on record — a clean recall slate for the 2014 model year.
- 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).
The 2014 Mercedes-Benz S-Class at a glance
- Is the 2014 Mercedes-Benz S-Class reliable?
- Autojunket rates the 2014 Mercedes-Benz S-Class 72/100 (grade C+), categorized as moderate risk. A pinnacle of luxury with a maintenance price tag that matches its original MSRP.
- Should I buy a used 2014 Mercedes-Benz S-Class?
- Autojunket recommends reading the full reliability report before buying a 2014 Mercedes-Benz S-Class. 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…
- Which Mercedes-Benz S-Class years are the most reliable?
- Best model years to buy: 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..
- What are the most common problems with the 2014 Mercedes-Benz S-Class?
- The top failure points on the 2014 Mercedes-Benz S-Class are AirMatic/Active Body Control (ABC) Suspension (typically around 60,000-100,000 miles), Electrical and Infotainment (COMAND) (typically around 40,000-80,000 miles), Engine (M278 V8 Specific) (typically around 80,000-120,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 2014 Mercedes-Benz S-Class?
- The first major mileage danger zone for the 2014 Mercedes-Benz S-Class is around 30,000. 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.
Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.
Read the full free reportShould You Buy the 2014 Mercedes-Benz S-Class?
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
Top Risk Areas
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)
NHTSA Recalls
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.
Autojunket OSC · OSC Transfer
Sell your 2014 Mercedes-Benz S-Class for what it's actually worth.
Log every service. Sell with a signed PDF. Every receipt, mileage-verified, in the buyer's hands.
Mercedes-Benz S-Class by Year
Compare AutoScores across nearby years of the Mercedes-Benz S-Class. Click any year for its full report.
If You're Considering This, Also Look At
Similar class, similar year range — ranked by AutoScore.
Relevant Products for Your 2014 Mercedes-Benz S-Class
Parts and accessories matched to your 2014 Mercedes-Benz S-Class
As an Amazon Associate I earn from qualifying purchases.
Where the 2014 Mercedes-Benz S-Class report beats Carfax + CR
Carfax tells you if it crashed. Consumer Reports rates the whole nameplate. Autojunket tells you what will actually break on this specific year — and how to negotiate it.
Year-specific reliability score
Common problems + repair costs
Mileage danger zone map
AI negotiation script + walk-away price
Single report price
Frequently Asked Questions
Related Comparisons
Sell your 2014 Mercedes-Benz S-Class for what it's actually worth.
Log every service on your Mercedes-Benz S-Class. When it's time to sell, hand the buyer a signed PDF — every receipt, mileage-verified, close the deal at your price.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
Recommended Reading for the Mercedes-Benz S-Class
Most Expensive Cars to Maintain (2026 Rankings)
Most Reliable Used SUVs Under $15,000 in 2026
Find the most reliable used SUVs under $15,000 in 2026. Expert insights on Toyota RAV4, Honda CR-V, Mazda CX-5, Subaru Forester, Hyundai Tucson.
Worst Used Cars to Buy (Avoid These Years)
Avoid costly mistakes! Discover the worst used cars and years to skip for reliability, saving you thousands in unexpected repairs. Get Autojunket's expe…