Posted on 12/19/2025

Hitting 100,000 miles in a Mercedes S-Class is a milestone. The car may still feel solid and comfortable, but a lot of critical parts have been working hard for a long time. This is the point where a smart maintenance plan can keep the car feeling like a flagship instead of letting age catch up all at once. Why 100,000 Miles Is a Big Deal for an S-Class The S-Class carries more weight, more electronics, and more comfort features than most vehicles on the road. That means its engine, suspension, and electrical system have had more to do over those first 100,000 miles. Normal wear reaches a point where small leaks, tired bushings, and marginal sensors start to show themselves. At this mileage, the goal is to move from “fix it when it breaks” to “refresh the important systems before they cause problems.” When we look over higher-mileage S-Class models, we focus on the components that protect reliability, safety, and ride quality first ... read more