Reliability

Is the Mercedes-Benz E-Class reliable? Honest answer.

Is the Mercedes-Benz E-Class a reliable car? What the MOT failure data, owner forums and reviews say, with year-by-year notes.

Updated 4th September 2026 DVSA data: Across 227,526 recorded MOT tests, 19.9% failed.

TL;DR

The Mercedes-Benz E-Class is generally reliable, but its dependability varies by model year. The 2014-2016 models are more reliable, while the 2010-2012 models have higher failure rates and common faults. Key issues include electrical faults and air suspension failures, which can lead to costly repairs.

MOT Pass Rates

MOT pass rates for the Mercedes-Benz E-Class show a mixed picture. According to DVSA data, the 2010-2012 models have a higher failure rate, often due to issues with lights, brakes, and emissions. In contrast, the 2014-2016 models have improved significantly, with pass rates closer to 80%. This improvement reflects enhancements in manufacturing and design that have addressed many of the earlier issues.

Common Failure Modes

Several common faults have been reported across various model years. Electrical issues, particularly with the infotainment system, are frequently noted. Owners have pointed out that the system can freeze or fail to respond, which can be frustrating. Air suspension failures are also common, especially in models equipped with this feature. Additionally, turbocharger problems can arise in diesel variants, especially in the 2012-2014 range, leading to performance issues and increased repair costs.

Year-by-Year Reliability

The reliability of the E-Class varies significantly by year. The 2014-2016 models tend to receive better ratings in owner reviews and surveys. In contrast, the 2009 and earlier models often receive criticism for their higher maintenance costs and issues. Owners of the 2010-2012 models report more frequent repairs, making these years less desirable. Buyers in UK communities have flagged that the 2013 model year is also a mixed bag, with some owners experiencing fewer issues compared to its predecessors.

Maintenance Costs

Maintaining a Mercedes-Benz E-Class can be costly. Routine services are generally higher than average, and specific repairs can be expensive. For example, fixing electrical faults may cost around £300, while issues with the air suspension can exceed £1,000. It’s essential for potential buyers to budget for these potential expenses. Additionally, some owners have reported that while routine maintenance is manageable, unexpected repairs can lead to significant costs, especially as the vehicle ages.

What people are asking

What are the common problems of an E-Class?

Common problems with the Mercedes-Benz E-Class include electrical faults, particularly with the infotainment system, air suspension failures, and issues with the turbocharger in diesel models. Owners have also reported problems with fuel injectors in some early models, which can lead to performance issues.

Is the Mercedes E-Class a reliable car?

Overall, the Mercedes E-Class is considered a reliable car, but this varies by model year. The 2014 to 2016 models are generally viewed as more reliable, while earlier models, particularly from 2010 to 2012, have been flagged for higher failure rates and maintenance costs.

Which Mercedes to stay away from?

Many buyers recommend avoiding the 2010-2012 E-Class models due to their higher incidence of faults and repair needs. Additionally, some owners suggest being cautious with the 2009 models, which have been noted for their expensive maintenance and reliability issues.

Which year is the Mercedes E-Class most reliable?

The most reliable years for the Mercedes E-Class are typically 2014 to 2016. These models have shown improved performance in reliability surveys and owner reviews, making them a safer choice for potential buyers.

What owners say

They appreciate the luxurious feel and advanced technology, which they believe sets it apart from competitors. However, there are concerns about reliability, particularly with older models. Owners have noted that while the driving experience is exceptional, the costs associated with repairs can be daunting. Many owners express their satisfaction with the E-Class, highlighting its comfort and performance.

Several have reported problems with the infotainment system, which can be a significant inconvenience. Additionally, air suspension failures are a common theme, with some owners stating that these repairs can be particularly costly and disruptive. Common faults are frequently discussed among owners, with many sharing their experiences regarding electrical issues.

Value retention is another topic of discussion. Buyers in UK communities have flagged the importance of considering the vehicle’s history and condition when looking at older models. Owners in various forums have pointed out that while the E-Class holds its value well compared to other luxury vehicles, the resale value can be affected by the model year and its associated reliability issues.

Lastly, many owners recommend thorough inspections before purchasing a used E-Class. They advise potential buyers to pay close attention to the service history and any previous repairs. This advice is echoed by discussions, where members share tips on what to look for in a used E-Class, particularly regarding common faults and maintenance records.

Mercedes-Benz E-Class recall record

139 recalls have been issued for the Mercedes-Benz E-Class, between 2000 and 2026.

  1. Coolant pump control software

    R/2026/201

    Issued 23 June 2026

    Mercedes-Benz AG has determined that on certain GLE/GLS (167 platform) C-Class (205 platform) E-Class (213 platform) S-Class (223 platform) GLC (253 platform) and CLS (257 platform) vehicles with diesel engine the vacuum‑controlled coolant pump might exhibit a leakage between the vacuum system and the coolant circuit.

    Remedy:As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.

    Affects cars built May 2017 to May 2017

  2. SRPC2521 – Routing of transmission wiring harness

    R/2025/534

    Issued 19 January 2026

    Mercedes-Benz AG has determined that on certain E-Class AMG (214 platform) vehicles with 4-wheel-drive the routing of the transmission wiring harness might not meet specifications.

    Remedy:As a precautionary measure Mercedes-Benz AG via its Mercedes-Benz service partners will check the routing of the transmission wiring harness on the affected vehicles and rework it if necessary.

    Affects cars built Sept 2024 to Jan 2025

  3. SRPC2504 - Ground connection bolting

    R/2025/155

    Issued 8 May 2025

    Mercedes-Benz AG has determined that on certain E-Class (214 platform) and GLC (254 platform) vehicles the bolts of certain 12V- and 48V- ground connections might not have been fastened with the specified torque.

    Remedy:As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will check the bolting of the ground connections and perform according repairs if necessary.

    Affects cars built Feb 2024 to May 2024

  4. SRPC2421 – Welding of rear axle carrier

    R/2024/502

    Issued 23 December 2024

    Mercedes-Benz AG has determined that on certain E-Class 214 platform and GLC 254 platform vehicles the welding of consoles to the rear axle carrier might not meet specifications.

    Remedy:As a remedy a Mercedes-Benz service partner will replace the rear axle carrier of the affected vehicles.

    Affects cars built Aug 2024 to Sept 2024

135 older recalls not shown.

A recall applies to a build range, not to every car of this model. Check a registration to see whether one specific vehicle has an outstanding recall.

Mercedes-Benz E-Class MOT record

From 227,526 recorded MOT tests, 19.9% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20243092.3%24,643 mi
20222,7459.7%29,070 mi
20216,26210.8%40,853 mi
202010,24512.4%46,752 mi
201920,62712.8%57,208 mi
201820,55114.1%64,346 mi
201721,61614.4%79,008 mi
201619,82516.1%81,960 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements32.7%
  2. A suspension pin, bush or joint excessively worn20.9%
  3. Brake pipe damaged or excessively corroded18.3%
  4. A tyre seriously damaged18.1%
  5. a brake lining or pad worn below 1.5mm9.9%

Figures cover every Mercedes-Benz E-Class tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Mercedes-Benz E-Class official figures

Median across 24 variants on sale, diesel electric, electricity / diesel, electricity / petrol, petrol electric.

Combined economy
45.2 mpg
WLTP median across variants
CO2 emissions
153.5 g/km
Sets the first-year tax rate
Electric range
58.5 miles
Manufacturer WLTP figure

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What are common issues with the Mercedes-Benz E-Class?

Common issues include electrical faults, air suspension failures, and turbocharger problems.

Which model years are the most reliable?

Generally, the 2014 to 2016 models show better reliability ratings.

How do MOT pass rates compare?

The MOT pass rates vary, with 2010-2012 models showing higher failure rates than newer ones.

Is the E-Class expensive to maintain?

Yes, maintenance can be costly, especially for older models.

Sources