Vehicle Guide

2017 Mercedes-Benz S-Class Problems, Reliability & Owner's Guide

Common problems with the 2017 Mercedes-Benz S-Class, reliability ratings, maintenance tips, and owner reviews. Get your complete owner's guide.

Overview

The 2017 Mercedes-Benz S-Class is a full-size luxury sedan positioned at the top of Mercedes-Benz’s lineup, designed for buyers who prioritize comfort, technology, and prestige. It’s part of the W222 generation (2014–2020), offering a refined, quiet ride and a high-end cabin that still feels modern. The 2017 model year sits in the middle of the generation, making it a popular choice for shoppers who want advanced features without paying new-car pricing. It’s ideal for executive commuting, long-distance touring, and drivers who want flagship-level performance and amenities.

Key Features

- Flagship ride and cabin refinement: The 2017 S-Class is known for its exceptionally quiet interior, smooth highway manners, and premium materials throughout the cabin, with available multi-contour heated/ventilated/massaging seats. - Strong engine lineup: Common U.S. options include the S 550 with a 4.7L twin-turbo V8 (402 hp) and the S 65 AMG with a 6.0L twin-turbo V12 (621 hp). Many markets also offered additional variants (including V6 and hybrid/diesel options depending on region). - Advanced driver assistance: Many 2017 models were equipped with adaptive cruise control, lane-keeping assistance, blind-spot monitoring, and automated braking features, helping reduce fatigue on long drives. - High-end infotainment and connectivity: A wide-screen dash layout with navigation, Bluetooth audio/phone integration, premium audio options, and extensive vehicle customization menus are common highlights. - Available 4MATIC all-wheel drive and performance trims: Buyers could choose rear-wheel drive or 4MATIC on many trims, plus AMG performance models for sharper handling and higher output.

Common Issues & Reliability

Shoppers often search “2017 Mercedes-Benz S-Class reliability” and “2017 Mercedes-Benz S-Class common issues” because repair costs can be high even when the car is well cared for. Overall reliability is often described as average for a flagship luxury sedan: durable when maintained correctly, but complex systems can create expensive surprises as mileage climbs. 1) Air suspension (AIRMATIC) leaks or compressor wear: Some owners report sagging corners after sitting overnight, bouncy ride quality, or suspension warning messages. Air struts and compressors can begin showing problems around 60,000–100,000 miles, especially in harsh climates or if the car sits for long periods. 2) Oil leaks from engine seals/gaskets: The S 550’s twin-turbo V8 can develop seepage from valve cover gaskets and other seals as the vehicle ages. Oil smell, light smoke near hot components, or spots on the driveway may appear around 50,000–90,000 miles depending on use and service history. 3) Electrical/infotainment glitches: With extensive electronics, some 2017 S-Class models experience intermittent sensor warnings, camera or parking aid issues, battery/charging sensitivity, or infotainment quirks. These problems can be as simple as a weak battery or as involved as module diagnosis and programming. 4) Cooling system and thermostat-related issues: Some owners report coolant leaks, thermostat problems, or temperature warnings as mileage increases. Catching small leaks early is important to avoid overheating and more expensive repairs.

Frequently Asked Questions

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