CarRecallWatchThe 2020 Mercedes-Benz S 450 has 4 safety recalls on file with NHTSA.
Owners have filed 4 complaints with NHTSA.
The most-reported problem area is Vehicle Speed Control (1 report).
2020 Mercedes-Benz S 450 recalls
Emergency call system may fail to connect in a crash
A software error in the communication module's SIM card can cause a mobile network connection failure.
Loose Side Sensor Connectors Can Delay Airbags in a Crash
Side crash sensor connectors in certain vehicles may come loose.
Front roof panel may detach while driving, creating a crash hazard
The front roof panel, located between the windshield and the panoramic sunroof, may not have been bonded correctly to the vehicle during a previous repair.
Crash Alert May Send Responders to Wrong Location
Certain 2016-2017 Mercedes-Benz vehicles have a software problem in the communication module that runs the automatic crash notification (eCall) system.
Most common 2020 Mercedes-Benz S 450 problems
Problem areas named in the 4 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Vehicle Speed Control | 1 |
| Visibility/Wiper | 1 |
| Fuel/Propulsion System | 1 |
| Unknown Or Other | 1 |
What owners report
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 realized that my sunroof had suddenly exploded and shattered onto the shade located in the ceiling.
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 the highway to a gas station where it cut off again The dealer said it is a known problem however my vin number was included despite the fact that they know that the 2020 mercedes benz s450 has an issue that should be recalled due to the severity of the situation and safety of the public. Warning lights did not come on until the car totally stopped. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Had windshield breakage and replacement on 14 December 2023. On 29 January 2024, had an apparent windshield strike (pinhead size) and windshield cracked from middle to top. Within 20 minutes crack had spread all across the top of windshield. While parked crack spread down and completely across the bottom of windshield in about 30 minutes. Vehicle is now in Mercedes dealership for windshield service once again. I have been driving for 60+ years and never saw this massive of a windshield crack caused by a pinhead size strike. My belief is that either it was bad glass or installation. I have read numerous complaints regarding Mercedes glass and am concerned whether I can safely operate thi
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
2020 Mercedes-Benz S 450 questions
Does the 2020 Mercedes-Benz S 450 have any recalls?
Yes. NHTSA lists 4 safety recalls for the 2020 Mercedes-Benz S 450: Emergency call system may fail to connect in a crash; Loose Side Sensor Connectors Can Delay Airbags in a Crash; Front roof panel may detach while driving, creating a crash hazard; Crash Alert May Send Responders to Wrong Location. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2020 Mercedes-Benz S 450?
Based on 4 owner complaints filed with NHTSA, the most-reported problem areas are Vehicle Speed Control (1), Visibility/Wiper (1), Fuel/Propulsion System (1).
How do I check if a recall on my 2020 Mercedes-Benz S 450 has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.