mercedes-benz S-Class problems
0 safety recalls. 29 owner complaints. We mapped every trouble spot before you sign the papers.
Solid reliability overall. Common issues are concentrated in a few systems.
Top trouble spots 3 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
Driving on interstate 95 in South Carolina in the high speed lane Saturday December 2 2023 late morning. Adaptive cruise control, lane keep assist, self driving modes engaged. No traffic in front, large semi truck next to passenger side about equal to side mirror, I believe…
THE PRE-COLLISION SAFETY FEATURE GOES OFF WHEN THERE IS NO COLLISION IMMINENT. IT IS FRIGHTENING AND COULD ACTUALLY CAUSE AN ACCIDENT.
1. The leather cover for the dashboard has peeled up on the passenger side. The vehicle is parked inside a covered garage while it is not being driven since it was purchased in 2021. 2. I am worried about the safety airbag restraints in the dashboard might not be working. 3.…
Vehicle had a low tire, vehicle indicated it needed to be driven for recalibration of the sensor(s). Took vehicle for short drive up two lane road. Turned around and headed back to where was staying and upon acceleration the vehicle seemed to have pulled off the road but come…
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Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2018 Mercedes-Benz S-Class reliable?
Mostly yes. With a reliability score of 8.4 out of 10 based on 29 owner complaints filed with NHTSA, the 2018 Mercedes-Benz S-Class is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
What's the most common problem on the 2018 Mercedes-Benz S-Class?
Based on NHTSA records, the most-reported issue is engine, with 6 complaints filed. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Mercedes-Benz S-Class has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Mercedes-Benz S-Class?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 29 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.