2020 Mercedes-Benz S 450 Recalls, Complaints & Specs
4 safety recalls list the 2020 Mercedes-Benz S 450, and owners have filed 4 complaints with NHTSA. Check your own VIN below.
4 safety recalls for the 2020 Mercedes-Benz S 450
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Auto crash notification (communication) and software (electrical system)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication…
Remedy: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in…
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Air bags: side impact
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Remedy: Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.…
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Roof and pillars (structure)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018…
Remedy: Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification…
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Software (electrical system) and auto crash notification (communication)
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the…
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer…
4 owner complaints filed with NHTSA
Owners of the 2020 Mercedes-Benz S 450 have filed 4 complaints with NHTSA. The average mileage at failure in those reports is 1,700 miles. Complaints peaked in 2020 with 1 filed that year.
Most-reported components
What owners are reporting
“While driving down the road I heard a loud explosion that sounded like a gunshot hit my read window. This caused me to jerk the car and almost hit the driving car next to me. I pulled over and realize”
Owner complaint to NHTSA, January 14, 2026 · Unknown or other
“The fuel pump My car stopped on the highway [XXX] on [XXX] with my children in the car with no warning at all. I was so lucky nobody hit us and it took 20 minutes of trying to start it to get off of t”
Owner complaint to NHTSA, October 17, 2025 · Fuel/propulsion system
Compare Mercedes-Benz S 450 model years
Recall and complaint counts for every Mercedes-Benz S 450 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2018 Mercedes-Benz S 450 | 8 | 7 |
| 2019 Mercedes-Benz S 450 | 8 | 3 |
| 2020 Mercedes-Benz S 450 | 4 | 4 |
Checking a specific 2020 Mercedes-Benz S 450
How do I know if my 2020 Mercedes-Benz S 450 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 4 campaigns currently list the 2020 Mercedes-Benz S 450; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mercedes-Benz dealer with your VIN and the NHTSA campaign number (for example 21V058000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mercedes-Benz models
- C3003,469 complaints
- E3502,170 complaints
- E3201,164 complaints
- ML350952 complaints
- GLK350904 complaints
- ML320742 complaints
- C250726 complaints
- C230657 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.