RoadVitals

2020 Mercedes-Benz E 450 4MATIC Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
3
+1 complaint in 30 days
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
3
Reports on file since Jun 13, 2026

What this page shows

Our database holds 3 NHTSA owner-reported complaints for the 2020 Mercedes-Benz E 450 4MATIC. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–3 of 3

Powertrain (other)
Filed Jul 23, 2026

The contact owns a 2020 Mercedes-Benz E450 4Matic. While the contact’s son was driving at an undisclosed speed, the vehicle unexpectedly slowed down and failed to properly accelerate. The contact's son attempted to shift into reverse; however, the transmission was making an abnormal grinding sound. The vehicle was towed to the dealer to be diagnosed. The vehicle was diagnosed with drivetrain and engine damage, catalytic converter failure, and a bolt had snapped or was loose. The contact stated that the dealer related the failure to NHTSA Campaign Number: 26V216000 (POWER TRAIN). The vehicle was not repaired. The part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 78,000.

NHTSA ID
11752406
Incident
Jun 26, 2026
Mileage
78,000 mi
EngineFuel system
Filed Jul 13, 2026

My 2020 E450 has not been serviced on schedule due to Mercedes-Benz of Indianapolis and its service manger banning and blacklisting me for months. This service department would not allow my vehicle to be serviced under a prepaid maintenance and wheel and tire plan, and most importantly my vehicle's warranty. When I went there for an appointment, a flat tire, or help with my vehicle, they kicked me out, verbally harassed and threatened me because I did not pay the deductible on a loaner vehicle because my signature was forged to submit a false claim. I have had problems with my vehicle, but most recently, as I was driving on a roundabout in rush hour traffic, when my vehicle suddeny stopped and experienced lack of compulsion and would not drive. It had already had a check light engine, tires, batteries, and brakes. It was surprising because my 2020 E450 Mercedes-Benz had only 39,000 miles. I did not have anywhere to take it to. Mercedes-Benz Customer Care authorized it to be towed to the Mercedes-Benz of Fort Wayne because the service manager black listed me from surrounding MercedesBenz service departments. When my vehicle was towed to Fort Wayne, the service department would not allow me to use my warranty. It had expired before I had a chance to use my prepaid plans. I explained my issues, and in April and May, I told them about a recall. They ignored me, but saw problems and concerns of safety while I wad driving. They did find leaking and now what to charge me $26,000 to replace mt vehicle's engine, such as a leakage and symptoms of the exact signs of what the recall states. As of today, Mercedes-Benz of Fort Wayne has had my vehicle since April 1, 2026, (three months) in an unassembled state. Now, they are threatening to charge storage fees and sieze by vehicle even though it is unsafe to drive. Thank you for taking time to read this.

NHTSA ID
11749901
Incident
Aug 19, 2024
Driver assistance
Filed Jun 13, 2026

Back up camera not functioning. Emblem cover will not retract. Must use key fob or electronic controls to open the trunk.

NHTSA ID
11743891
Incident
Jun 1, 2026

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .