CarRecallWatchThe 2021 Mercedes-Benz E 450 has 14 safety recalls on file with NHTSA.
Owners have filed 7 complaints with NHTSA.
The most-reported problem area is Electrical System (3 reports).
2021 Mercedes-Benz E 450 recalls
Loose Ground Cable Can Overheat and Cause a Fire
A 48-volt ground cable connection in the engine compartment may not have been tightened properly at the factory.
12V battery may not be secured, disabling crash safety features
The 12-volt battery in the trunk may not be properly secured.
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.
Rearview camera may show no image, raising crash risk
The rearview camera may fail to display the rear view because of a software error.
Steering Hands-Off Detection May Fail, Raising Crash Risk
A software error in the hand detection control unit can keep the hands-off detection from recognizing when the driver's hands are off the steering wheel while the Active Distance Assist DISTRONIC system is in use.
Loose Side Sensor Connectors Can Delay Airbags in a Crash
Side crash sensor connectors in certain vehicles may come loose.
Rear seat belts may loosen child seat hold in a crash
Certain 2021 Mercedes-Benz AMG and CLS models have rear seat belt automatic locking retractors that may deactivate early.
Rear Headrests May Detach in a Crash
Certain 2021 Mercedes-Benz convertibles may have rear head restraints that are not mounted correctly to the seatbacks.
Rearview camera may show a blank screen, raising crash risk
The multimedia system software in these vehicles can cause the infotainment display to stay black or reboot after startup.
Rearview Camera May Fail, Raising Backover Crash Risk
The parking control unit in certain 2021 Mercedes-Benz E 350, E 450, and AMG E63 vehicles may fail to display the rearview camera image.
Air Bags and Seat Belts May Not Deploy in a Crash
A faulty electrical contact in the seat position switch can stop the driver and passenger air bags and the seat belt force limiters from activating properly during a crash.
Passenger seat can move too close to airbag
The passenger seat's position limiter may allow the seat to be moved too close to the front passenger airbag.
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.
Passenger Seat May Move Too Far, Raising Airbag Injury Risk
The front passenger seat may be missing the mechanical stop that limits how far it can travel.
Most common 2021 Mercedes-Benz E 450 problems
Problem areas named in the 7 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Electrical System | 3 |
| Engine | 2 |
| Unknown Or Other | 2 |
| Wheels | 1 |
What owners report
After the car sits for three or more days, brakes locks up. It takes lots of power to get the brakes to release. Itâs a safety concern as the car is parked in the garage with not enough room to maneuver. We never had any car which locks the brakes in this manner. Took it to MB dealer and they say itâs the way brakes are designed. A complete nonsense.
Mercedes Benz issued a recall (Manufacturer Recall Number 2021060021; NHTSA Recall Number 21V354) in May 2021. The recall affects my vehicle's MBUX multimedia system, most importantly, the backup camera, which may fail while in use if this issue is not remedied. I was advised of the recall by them in July 2021. To date they have failed to remedy this safety recall. I have contacted Mercedes Benz several times (most recently on 03/21/2022) and they are unable or unwilling to provide a date when this safety issue will be remedied.
The contact owns a 2021 Mercedes-Benz E450. The contact stated that the vehicle speed control was always inadvertently activated, which caused the vehicle to decelerate automatically. The failure nearly caused a collision. The dealer was made aware of the failure and referred the contact to the manufacturer. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and informed the contact that they would call back. The failure mileage was approximately 1,000.
The 48 volt battery on this mild hybrid vehicle failed and the car was unable to be started on May 3, 2021, with 196 miles on the odometer, a mere 15 days after delivery. It had to be taken by flatbed to the dealer where ultimately the 48 volt battery was replaced. Then again on June 5, 2021, the car was again unable to be started, with a mere 735 miles on the odometer. Again, the car had to be taken by flatbed to the dealer, where ultimately the 48 volt battery was replaced a second time. While both failures, fortunately, happened while the vehicle was at home, the could have happened on the highway, in the middle of nowhere in bad weather conditions, or anywhere. I have had to cancel
48Volt battery failed after three months and just 3,400 miles. I understand this is a recurring problem with Mercedes. Car had to be towed as the vehicle was totally inoperable due to battery malfunction. It took more than three weeks for Mercedes to provide a replacement battery. From what I have read, there is a strong likelihood that the battery will fail again.
2021 Mercedes-Benz E 450 questions
Does the 2021 Mercedes-Benz E 450 have any recalls?
Yes. NHTSA lists 14 safety recalls for the 2021 Mercedes-Benz E 450: Loose Ground Cable Can Overheat and Cause a Fire; 12V battery may not be secured, disabling crash safety features; Emergency call system may fail to connect in a crash; Rearview camera may show no image, raising crash risk; Steering Hands-Off Detection May Fail, Raising Crash Risk. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2021 Mercedes-Benz E 450?
Based on 7 owner complaints filed with NHTSA, the most-reported problem areas are Electrical System (3), Engine (2), Unknown Or Other (2).
How do I check if a recall on my 2021 Mercedes-Benz E 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.