Mercedes-Benz S-Class problems
Light NHTSA footprint — 7 owner complaints. Either a clean record or thin data; we'll show what's there.
Limited NHTSA data — only 7 complaints on file. The score reflects what's reported, but a small sample skews easily.
Only 7 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
What owners are saying recent NHTSA-filed complaints · verbatim
Automatic drive shuts off when you brake. However, in a rolling stop and brake, it does not restart in certain situations when you accelerate out of the stop. It is inconsistent, but service team at local dealer have recreated the situation. The car is designed to auto…
The contact owns a 2020 Mercedes-Benz S560. The contact stated that while driving approximately 60 MPH, there was an abnormal sound and shards of glass started entering the vehicle from the sunroof. No injuries were sustained. The vehicle was taken to the dealer; however, the…
The contact owns a 2020 Mercedes-Benz S 560. The contact stated while driving 10 MPH, the check engine warning light illuminated. The vehicle was taken to the dealer, where the warning light was cleared; however, the failure recurred the following day. The vehicle was taken back…
Intermittent (at least a half dozen times since feb 2020 purchase) unintended increase in speed by as much as 35 MPH; taken to selling dealer who could not detect a problem or duplicate malfunction. *tr
Common questions
Is the 2020 Mercedes-Benz S-Class reliable?
Limited NHTSA data. Only 7 owner complaints have been filed for the 2020 Mercedes-Benz S-Class, which is not enough for a meaningful reliability score. Active recalls (if any) are listed on this page and remain authoritative — those are verified defects regardless of complaint volume. For a confident reliability read we look for at least 10 owner complaints in the federal database.
Should you avoid the 2020 Mercedes-Benz S-Class?
Only 7 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data. We don't issue a buy/avoid verdict on the 2020 Mercedes-Benz S-Class without a meaningful complaint sample — doing so off a handful of filings would be guesswork.
What should I check before buying a used 2020 Mercedes-Benz S-Class?
There isn't enough NHTSA complaint data on the 2020 Mercedes-Benz S-Class to flag a standout failure pattern. Run the VIN for open recalls — those are free to fix regardless of warranty — get a standard pre-purchase inspection, and ask the seller for service records.
Is the 2020 Mercedes-Benz S-Class a good used car to buy?
Hard to say from federal data alone — only 7 owner complaints have been filed. Lean on the recall list above, a pre-purchase inspection, and a vehicle-history report on the specific VIN. Our data tells you what the model is known for; a history report tells you what that exact car has been through.
What's the most common problem on the 2020 Mercedes-Benz S-Class?
No problem area has crossed our reporting threshold yet, which is a good sign for this vehicle.
What's the most expensive thing that goes wrong?
Major repair items haven't been flagged often enough on this vehicle to single one out.
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 2020 Mercedes-Benz S-Class?
Hard to say from NHTSA data alone with only 7 complaints on file. A quality service contract runs $1,800–3,500 over 3 years. The decision comes down to your specific situation: vehicle cost, miles on it, how long you plan to keep it, and whether you can absorb a $3K–$8K repair without straining cashflow. With limited public data on this vehicle, lean on the recall list above and check owner forums before committing.