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Total NHTSA Complaints
25
Owner filings recorded
#1 Reported Problem
Electrical System
8 reports (32%)
Crash Incident Reports
0
Zero collision citations
Fire & Injury Reports
1
1 fire • 0 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 25 official NHTSA owner defect complaints for the 2021 Mercedes-Benz E-Class. Electrical System issues are the most frequently reported category, appearing in 8 complaints (32% of submitted records). Among these NHTSA complaint records, 1 cites a fire. The 2021 Mercedes-Benz E-Class belongs to the 5th Generation (W213) platform.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 25 complaints submitted under federal penalty.
  • • Primary Subsystem: Electrical System accounts for 32% of submissions (8 reports).
  • • Secondary Systems: Engine & Cooling (6), Driver Assistance & Safety Tech (6).
  • • Crash Incidents: 0 filings cite an impact or collision.
  • • Thermal Incidents: 1 filings cite smoke or fire.
  • • Reported Casualties: 0 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2021 Mercedes-Benz E-Class

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Electrical System
8
32%
Engine & Cooling
6
24%
Driver Assistance & Safety Tech
6
24%
Powertrain & Transmission
4
16%
Fuel & Propulsion System
3
12%
#1 32% SHARE

Electrical System

8 owner complaints submitted to NHTSA ODI for this subsystem.

🔥 1 Fire
⚠️ 3 Associated Recall Campaigns
#2 24% SHARE

Engine & Cooling

6 owner complaints submitted to NHTSA ODI for this subsystem.

🔥 1 Fire
#3 24% SHARE

Driver Assistance & Safety Tech

6 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
⚠️ 3 Associated Recall Campaigns
#4 16% SHARE

Powertrain & Transmission

4 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
Consumer Filings

Recent NHTSA Owner Reports for 2021 Mercedes-Benz E-Class

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Powertrain & Transmission ODI #11755689
Filed: 08/08/2026
Defect Report

"Engine misfires, lower engine power, and a lit check engine/Malfunction Indicator Lamp. Mercedes-Benz issued an Emission Service Campaign (No. [PHONE REDACTED], internal code 21P1590208) to replace out-of-spec ignition coils on 657 vehicles from model year 2021, including the E-Class. My VIN was..."

Fuel & Propulsion System ODI #11736678
Filed: 05/08/2026
Defect Report

"Vehicle: 2021 Mercedes-Benz E350 Sedan (W213) VIN: [XXX] While operating the vehicle, the diagnostic system displayed the fault code P240200 related to the Evaporative Emission Control System (EVAP). The warning message indicated a “positive short circuit” in the fuel vapor leak diagnosis pump..."

Powertrain & Transmission ODI #11708688
Filed: 01/04/2026
Defect Report

"With the car only have about 15,000 miles the transmission has failed . I have seen there have been recalls of other models with similar complaints of transmission failure ."

Engine & Cooling ODI #11707258
Filed: 12/27/2025
Defect Report

"Engine keeps having a misfire that Mercedes put a TSB out for and once the misfire happen I cause the vehicle to go in a limp mode which causes the vehicle to loose power happened to me in the freeway. The car had 54K miles and Mercedes refused to repair the issue as the engine part failure isn’t..."

Engine & Cooling ODI #11673376
Filed: 07/14/2025
Defect Report

"My 2021 Mercedes-Benz E350 (VIN [XXX] ) developed a serious engine issue involving cylinder misfire and check engine light. The dealer diagnosed it as a leaking exhaust valve on cylinder 4, related to TSB LI01.30-P-072328, which documents valve seat wear in M260 engines. This is a known defect..."

Multi-Year Trend

Complaint History for Mercedes-Benz E-Class

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Mercedes-Benz E-Class 57 5 6 View 2015 Problems →
2016 Mercedes-Benz E-Class 89 6 5 View 2016 Problems →
2017 Mercedes-Benz E-Class 166 3 20 View 2017 Problems →
2018 Mercedes-Benz E-Class 66 2 6 View 2018 Problems →
2019 Mercedes-Benz E-Class 54 4 20 View 2019 Problems →
2020 Mercedes-Benz E-Class 20 0 14 View 2020 Problems →
2021 Mercedes-Benz E-Class Current Page 25 0 18 Current
2022 Mercedes-Benz E-Class 21 2 8 View 2022 Problems →
2023 Mercedes-Benz E-Class 24 0 5 View 2023 Problems →
2024 Mercedes-Benz E-Class 25 3 0 View 2024 Problems →
2025 Mercedes-Benz E-Class 2 0 2 View 2025 Problems →
2026 Mercedes-Benz E-Class 0 0 0 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2021 Mercedes-Benz E-Class

Complete distribution of consumer defect reports across all 16 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Engine NHTSA category: ENGINE 3 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 3 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 3 0 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 2 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 2 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 2 0 1 0 0
ELECTRICAL SYSTEM,BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
SEAT BELTS,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
UNKNOWN OR OTHER,BACK OVER PREVENTION 1 0 0 0 0
Wheels & Hubs NHTSA category: WHEELS 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2021 Mercedes-Benz E-Class

Direct, deterministic answers synthesized from verified United States government databases for the 2021 Mercedes-Benz E-Class

What are the most common reported problems with the 2021 Mercedes-Benz E-Class?

In official NHTSA consumer records, the most frequently cited issue area for the 2021 Mercedes-Benz E-Class is Electrical System, appearing in 8 records (32% of submitted filings).

Secondary reported categories include Engine & Cooling (6) and Driver Assistance & Safety Tech (6).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2021 Mercedes-Benz E-Class a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 25 consumer defect complaints and 18 safety recall campaigns for the 2021 Mercedes-Benz E-Class.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2021 Mercedes-Benz E-Class?

Among consumer complaint records on file with NHTSA for the 2021 Mercedes-Benz E-Class, 0 filings cite a crash, 1 cite smoke or fire, and 0 report one or more injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.