Last updated: 2026-03-04
2021 Mercedes-Benz E-Class Reliability Score & Common Problems
The 2021 Mercedes-Benz E-Class scores 56/100 ("Mixed"). With 30 recalls and 36 owner complaints, buyers should proceed with caution.
2021 is 1 year after the facelift refresh.
Recalls
30
Complaints
36
Complaint Rate
N/A
per 10k sold
Est. Annual Cost
$908
Major Repair Risk
N/A
NHTSA Rating
5/5
Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
Mixed reliability — proceed with caution and budget for repairs.
Top Issues
30 recalls on record
Generation & Refresh (US)
2021 is 1 year after the facelift refresh.
- Year 6 in the Fifth generation (W213) (2016–2023).
- Well-established in its generation — most early issues should be resolved.
- 5th generation E-Class (US).
What this means for buyers
Post-refresh years tend to be among the most refined — updates have been applied and early kinks worked out.
Fifth generation (W213)
Should You Buy the 2021 Mercedes-Benz E-Class?
The 2021 Mercedes-Benz E-Class scores 56/100 ("Mixed"). Buyers should proceed with caution. 2021 is 1 year after the facelift refresh.
With 36 owner complaints and 30 recalls, the complaint volume is above average. Reported issues — particularly in electrical system (12) — can be costly to repair.
An extended warranty is strongly recommended. A thorough pre-purchase inspection focused on electrical system (12) is essential before committing.
Compared to the 2022 Mercedes-Benz E-Class, which scored 4 points higher. See also the 2020 Mercedes-Benz E-Class for an earlier comparison.
Pros
- Low complaint frequency
- 5-star NHTSA crash rating
Cons
- Below-average reliability score
- Above-average recall count
- ELECTRICAL SYSTEM: Several recurring electrical system issues with the 2021 Mercedes-Benz E-Class (6 complaints)
- ENGINE issues reported (3 complaints)
- 2 fire incidents reported in owner complaints
Compare 2021 Mercedes-Benz E-Class With
Common Problem Categories
Safety
- 30 manufacturer recalls issued
Other
- ELECTRICAL SYSTEM (6)
- ENGINE (3)
- POWER TRAIN (2)
- BACK OVER PREVENTION (2)
- UNKNOWN OR OTHER (2)
- SERVICE BRAKES (1)
- FUEL SYSTEM (1)
- WHEELS (1)
Recall Overview
30
recalls on record
The 2021 Mercedes-Benz E-Class has 30 recalls on record, which is above average. A higher recall count can indicate multiple component concerns. However, recalls also demonstrate that the manufacturer is actively addressing known issues. All recall repairs are performed free of charge at authorized dealerships.
NHTSA.gov →Complaint Breakdown
36
complaintsSafety Incidents
Crashes
0
Fires
2
Injuries
0
Deaths
0
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2021 Mercedes-Benz E-Class Recall Details
30 recalls have been issued for the 2021 Mercedes-Benz E-Class. All recall repairs are performed free of charge at authorized dealerships.
BACK OVER PREVENTION
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence
An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Remedy
Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022060007.
STEERING
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2022 C-Class, E-Class, S-Class, SL, EClass Coupe/Convertible, CLS, AMG GT 4-doors Coupe, and EQS vehicles with a heated leather steering wheel. Due to a software error in the hand detection control unit, the hands-off detection might not detect when the driver's hands are away from the steering wheel when using the Active Distance Assist DISTRONIC system.
Consequence
Deactivated hands-off detection will prevent DISTRONIC system features from functioning, including warnings to grab the steering wheel and calling first responders as part of the Active Emergency Stop Assist, which can increase the risk of a crash or injury.
Remedy
Dealers will update the hand detection control unit software for the DISTRONIC system, free of charge. Owner notification letters were mailed May 6, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022040010.
AIR BAGS
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Consequence
Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
Remedy
Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021070032/33.
Showing 10 of 15 recalls. View all on NHTSA.gov →
2021 Mercedes-Benz E-Class NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 9.7%
Safety Technologies
Mercedes-Benz E-Class Repair Costs & Maintenance
Maintenance Rating
3Maintenance rating: 3 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$908
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
2021 Mercedes-Benz E-Class Example Repair Prices
National average price ranges for common repairs. These are not model-year-specific failure predictions.
| Repair | Estimated Cost |
|---|---|
| Drive Axle Assembly Leak Inspection | $76 – $112 |
| Air Conditioning Refrigerant Line Replacement | $1,277 – $1,538 |
| Drive Axle Assembly Drain & Refill | $68 – $89 |
| Air Conditioning Receiver Drier Assembly Replacement | $425 – $536 |
| Wheel Bearing Replacement | $531 – $730 |
| Body Control System Diagnosis & Testing | $61 – $90 |
| Wheel Replacement | $2,560 – $2,596 |
| Fuel Evaporative Canister Replacement | $578 – $635 |
| Heater Core Replacement | $1,509 – $2,043 |
| Trans Oil Pan Gasket Replacement | $581 – $808 |
Estimates based on national average repair costs. Actual costs may vary by location and shop.
When Buying a Used 2021 Mercedes-Benz E-Class
Key things to inspect or verify before purchasing, based on the most common reported issues.
- Inspect transmission for signs of failure or shuddering
- Check 48V and 12V battery health and replacement history
- Test engine for misfires or unusual noises
- Verify rearview camera and parking sensors function properly
- Ensure MBUX multimedia system is updated and functional
- Check for any unresolved recalls related to electrical or engine systems
Check Any 2021 Mercedes-Benz E-Class's History Before You Buy
Reliability scores tell you what to expect from the 2021 E-Class in general — but every car has its own story. Uncover past accidents, title issues, odometer rollbacks, and service records for a specific Mercedes-Benz E-Class with a free VIN lookup.
Powered by VINExposed.com — free vehicle history reports using public title and safety data.
2021 Mercedes-Benz E-Class Common Problems by Component
36 owner complaints grouped by vehicle system.
ELECTRICAL SYSTEM
6 complaintsSafety-relatedOwners report several recurring electrical system issues with the 2021 Mercedes-Benz E-Class. Complaints frequently mention battery-related problems, including failures of both the 12V and 48V batteries, with one incident resulting in a vehicle fire. Symptoms described include warning messages, loss of power, and vehicles becoming inoperable, often requiring towing. These issues appear at low mileages, with some occurring as early as 3,400 miles. Safety implications are significant, with reports of loss of control and near accidents due to sudden power loss, highlighting potential risks for buyers considering this model.
ENGINE
3 complaintsOwners report engine misfires in the 2021 Mercedes-Benz E-Class, often linked to a technical service bulletin (TSB) concerning valve seat wear in M260 engines. Complaints frequently mention symptoms such as misfires, power loss, and potential stalling, with some cases occurring at approximately 54,000 miles. Additionally, there are reports of 48-volt battery failures in mild hybrid models, leading to starting issues and requiring battery replacements, sometimes within the first few hundred miles. These issues can pose safety risks, especially if they occur on highways, potentially leaving drivers in precarious situations. Buyers considering this model should be aware of these documented problems and verify if any corrective measures have been applied.
POWER TRAIN
2 complaintsOwners of the 2021 Mercedes-Benz E-Class report issues with transmission failures, particularly around the 15,000 to 22,000-mile range. Complaints frequently mention complete transmission failure, with one owner noting the inability to move the vehicle after a breakdown on the highway. This suggests potential safety implications, as loss of mobility can leave drivers stranded. These patterns indicate that prospective buyers should be aware of possible transmission issues at relatively low mileage.
BACK OVER PREVENTION (2 complaints)
BACK OVER PREVENTION
2 complaintsOwners of the 2021 Mercedes-Benz E-Class report issues with the back over prevention systems, specifically the rearview camera and parking sensors. Common symptoms include the rearview camera failing to display an image and parking sensors not activating, which can compromise the driver's visibility and awareness when reversing. Complaints indicate these issues can occur intermittently over a period of two years, with one owner noting an increase in frequency. No crashes or injuries are reported, but the potential for reduced rear visibility could increase the risk of a collision. Buyers considering a used model should be aware of these reported malfunctions and may want to verify if any related recalls or service actions have been performed.
UNKNOWN OR OTHER (2 complaints)
UNKNOWN OR OTHER
2 complaintsOwners of the 2021 Mercedes-Benz E-Class frequently report issues with the vehicle's MBUX multimedia system, particularly concerning the backup camera, which may fail during use due to an unresolved recall. Another reported issue involves the vehicle speed control system, which inadvertently activates, causing unexpected deceleration and nearly resulting in collisions. These issues are noted with vehicles as early as 1,000 miles. Safety implications include potential loss of rear visibility and unexpected vehicle speed changes, which could lead to accidents. Buyers should be aware of these unresolved issues when considering a used 2021 E-Class.
SERVICE BRAKES (1 complaints)
SERVICE BRAKES
1 complaintThe contact owns a 2021 Mercedes-Benz E350. The contact stated that while parking the vehicle the emergency brake independently seized. The contact stated that the vehicle abruptly stopped. The vehicle would not drive forward or backward. The contact contacted the dealer and a service technician was dispatched to the location. The service technician connected the vehicle to the diagnostic equipment. The contact was advised that the vehicle was not safe to drive. The vehicle was towed to the dealer where it was diagnosed with a failed brake caliber voltage malfunction and the brake caliber voltage needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 24,001.
FUEL SYSTEM (1 complaints)
FUEL SYSTEM
1 complaintThe contact owns a 2021 Mercedes-Benz E350. The contact stated while driving at approximately 60 MPH, the check engine warning light illuminated, and the vehicle decelerated to 30 MPH. The vehicle was taken to the local mechanic who diagnosed that the fuel pump was faulty and needed to be replaced. The vehicle was not repaired. The local dealer and manufacturer were notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 23V445000 (Fuel System, Gasoline). The contact stated that the vehicle had experienced that failure listed in the recall. The failure mileage was 53,200.
WHEELS (1 complaints)
WHEELS
1 complaintAfter 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.
When Do 2021 Mercedes-Benz E-Class Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst Mercedes-Benz E-Class Years
Best Mercedes-Benz E-Class Years to Buy
The best Mercedes-Benz E-Class year is 2024 with a reliability score of 63/100, rated good. Other strong picks include 2023 (63/100) and 2022 (60/100).
Mercedes-Benz E-Class Years to Avoid
No Mercedes-Benz E-Class years are statistical outliers in our data — all years score consistently.
See full Mercedes-Benz E-Class years-to-avoid analysis →Mercedes-Benz E-Class Reliability Score Trend
Mercedes-Benz E-Class reliability has improved in recent years, with newer models scoring an average of 61/100 compared to 55/100 for older years.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 55/100 | Mixed |
| 2019 | 54/100 | Mixed |
| 2020 | 56/100 | Mixed |
| 2021 | 56/100 | Mixed |
| 2022 | 60/100 | Good |
| 2023 | 63/100 | Good |
| 2024 | 63/100 | Good |
Mercedes-Benz E-Class Reliability Compared to Other Years
Frequently Asked Questions
Is the 2021 Mercedes-Benz E-Class reliable?
What are the most common problems with the 2021 Mercedes-Benz E-Class?
How many recalls does the 2021 Mercedes-Benz E-Class have?
Is the 2021 Mercedes-Benz E-Class expensive to maintain?
How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent — Top-tier reliability, minimal issues
- 60–79: Good — Reliable with some minor concerns
- 40–59: Mixed — Notable issues, research before buying
- 0–39: Risky — Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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