2017 Mercedes-Benz S-Class Reliability ReportCommon Problems, Repair Costs & Expert Verdict
Quick Facts · 2017 Mercedes-Benz S-Class
- No active NHTSA safety recalls on record — a clean recall slate for the 2017 model year.
- Outscores the 2015 Mercedes-Benz S-Class by 6 points — one of the stronger nearby years to consider.
- The system most likely to surface first: airmatic/abc suspension system (major severity).
Should You Buy the 2017 Mercedes-Benz S-Class?
The 2017 Mercedes-Benz S-Class offers an unparalleled luxury experience and robust core components, but its sophisticated technology and complex systems introduce a moderate risk for high-cost repairs as it ages. While a well-maintained example can be a rewarding ownership, expect significant investment in maintenance and be prepared for potential high-ticket component failures if an inspection isn't thorough.
The 2017 Mercedes-Benz S-Class is a magnificent vehicle, offering a truly world-class luxury experience. However, its complex engineering and high-end components translate directly into a high cost of ownership. Buy it for the prestige and performance, but only with a meticulously documented service history, a thoro…
Best Model Years
2017-2020 (W222 post-facelift updates are robust)
Years to Avoid
None explicitly to avoid in this generation, but earlier W222 (2014-2016) might have more early-production software quirks.
Biggest Strengths
- Exceptional build quality and materials
- Robust engine and transmission (if properly maintained)
- Advanced safety and driver-assistance features
Top Risk Areas
The systems that tend to fail first on the 2017 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.
These advanced air or hydraulic suspension systems are prone to leaks in air springs/struts, compressor failures, or pump issues (especially ABC), leading to sagging, harsh ride, or complete system malfunction. Repairs are notoriously ex…
The sophisticated COMAND infotainment system can experience software glitches, frozen screens, navigation errors, or module failures. Other electrical issues include battery drains, sensor malfunctions, and occasional issues with power a…
The M278 V8 engine (S550) can develop oil leaks, particularly from the turbocharger oil lines or valve cover gaskets, often visible around the turbocharger area or as a burning oil smell. While not always catastrophic, these leaks requir…
2017 Mercedes-Benz S-Class Mileage Danger Zones
The mileage windows when the 2017 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 car is still relatively new. Focus on routine maintenance like oil changes and tire rotations. Any issues are likely covered under original warranty and are typically minor electrical glitches or software updates.
Maintenance Zone
This mileage marks a significant service interval, including transmission fluid/filter, spark plugs (on some engines), and possibly differential fluid. Suspension components may start showing early signs of wear, or issues with air suspe…
Elevated Risk Zone
Major component failures become more likely. The air suspension system is a primary concern, and engine oil leaks (M278) may require attention. Thorough inspections are crucial, and a significant budget for potential repairs is advisable.
High Risk Zone
At this point, significant and expensive repairs are highly probable. Expect to replace major components like multiple suspension units, potentially turbos, or resolve complex electrical issues. Only a consistently dealer-serviced exampl…
2017 Mercedes-Benz S-Class Ownership Cost Outlook
What it typically costs to keep the 2017 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
$1,200-2,000
Moderate Repairs
$1,500-4,000 occasionally
How Long Does the 2017 Mercedes-Benz S-Class Last?
Seek out models with lower mileage and an impeccable service history to mitigate the risk of premature component failures. Higher mileage examples will undoubtedly require significant immediate investment in deferred maintenance and preventative repairs.
What 2017 Mercedes-Benz S-Class Owners Actually Say
What Owners Love
- Unmatched ride comfort and quietness
- Luxurious, high-quality interior materials and design
- Impressive performance from all engine options
- Advanced safety features provide peace of mind
Common Frustrations
- Extremely high cost of routine maintenance and parts
- Complex electronics can be prone to frustrating glitches
- Expensive tire replacements due to large wheel sizes
- Poor fuel economy, especially with V8/V12 engines
Who Should Buy the 2017 Mercedes-Benz S-Class?
Best For
- Luxury sedan enthusiasts prioritizing comfort and technology
- Buyers with significant disposable income for maintenance
- Individuals who appreciate sophisticated engineering and driving dynamics
Not Ideal For
- Budget-conscious buyers seeking low ownership costs
- DIY mechanics (due to complexity and specialized tools)
How the 2017 Mercedes-Benz S-Class Compares to Rivals
The S-Class offers a more engaging driving experience and cutting-edge technology than some competitors, but at the cost of higher potential repair bills. It trades some of Lexus's 'bulletproof' reliability for a more dynamic and technologically advanced ownership experience.
More Reliable Than
- Audi A8 (D4 generation for complex electronics)
- BMW 7 Series (F01/F02 generation for N63 engine issues)
Comparable To
- Lexus LS (different reliability profile, less tech-heavy, but similar luxury focus)
- Porsche Panamera (similar complexity and cost of ownership)
NHTSA Recalls
No active NHTSA safety recalls on file for the 2017 Mercedes-Benz S-Class. Always verify with your VIN atnhtsa.gov.
What breaks on the 2017 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 by Year
Compare KeepScores 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 KeepScore.
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Frequently Asked Questions
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