vehicle signal
U.S. public vehicle records

2021 Mercedes-Benz E 450 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

7 owner complaints analyzed

14 distinct recall campaigns

1,000 mi median reported failure mileage

Scope: 2021 model year. Data snapshot: . 3 complaints include usable failure mileage.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Electrical System is the most frequently named component, appearing in 2 of 7 complaints (28.6%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Electrical and battery issues457.1%
Braking behavior114.3%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Electrical System
2
Engine
2
Unknown Or Other
2
Electrical System:12v/24v/48v Battery
1
Wheels
1
Component breakdown data
CategoryCount
Electrical System2
Engine2
Unknown Or Other2
Electrical System:12v/24v/48v Battery1
Wheels1

Electrical System: 2; Engine: 2; Unknown Or Other: 2; Electrical System:12v/24v/48v Battery: 1; Wheels: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
3
25,000 to 49,999
0
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,0003
25,000 to 49,9990
50,000 to 74,9990
75,000 to 99,9990
100,000 to 149,9990
150,000 and above0

Under 25,000: 3; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (3). 4 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2021
5
2022
2
Complaints over time data
CategoryCount
20215
20222

2021: 5; 2022: 2

Pattern summary

Electrical System leads the component reports. Electrical and battery issues appears in 4 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11406950 · 2021-04-07 (April 7, 2021)

TL* THE CONTACT OWNS A 2021 MERCEDES-BENZ E450. THE CONTACT STATED THAT WHILE STATIONARY, THE INSTRUMENT PANEL DISPLAYED A MESSAGE INDICATING THAT THE VEHICLE HAD CRASHED. AFTER THE MESSAGE WAS DISPLAYED, THE VEHICLE LOSS MOTIVE POWER. THE VEHICLE WAS TOWED TO MERCEDES-BENZ OF FRESNO (7055 N PALM AVE, FRESNO, CA 93650, [phone removed]) TO BE DIAGNOSED. THE PRELIMINARY DIAGNOSTIC RESULT INDICATED THAT THE 48 VOLT BATTERY NEEDED TO BE REPLACED. THE VEHICLE WAS STILL AWAITING REPAIR. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MI…

Owner-reported narrative. 743 miles reported. Look up ODI 11406950 at NHTSA ↗

Owner report 11413260 · 2021-04-21 (April 21, 2021)

I BOUGHT THIS CAR ON 12/12/2021 AND TWO WEEKS AFTER THAT, THE CAR HAD WARNING MESSAGE ON DASHBOARD "COOLANT TOO HOT, STOP THE VEHICLE" ON THE HIGHWAY -NJ TUNPIKE. IT STARTED SLOWING DOWN ON ITS OWN TO BELOW 20MPH, NEARLY KILLED ME WHILE I TRIED TO PULL IT OVER. THEN THE DEALER SERVICE SAID IT HAD DEFECTIVE WATER PUMP. THEN LAST WEEK 4/13/21 - 4 MONTH,ABOUT 2800 MILEGE ON IT, IT WOULDN'T START AT ALL., JUMP START DIDN'T EVEN WORK. SO I WAS STRANDED AGAIN IN THE MIDDLE OF THE NIGHT. IT GOT TOWED AND THEY SAID IT HAD DEFECTIVE BATTERY. SO HOW MANY…

Owner-reported narrative. 2,800 miles reported. Look up ODI 11413260 at NHTSA ↗

Owner report 11470644 · 2022-06-23 (June 23, 2022)

After the car sits for three or more days, brakes locks up. It takes lots of power to get the brakes to release. It’s 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 it’s the way brakes are designed. A complete nonsense.

Owner-reported narrative. Look up ODI 11470644 at NHTSA ↗