Mercedes Benz E 300 Amg Line Edition De Auto (2021)

329 real MOT outcomes analysed • 84.3% first-time pass rate

2021 Mercedes Benz E 300 Amg Line Edition De Auto

CarHunch analysed 329 real MOT records for the 2021 Mercedes Benz E 300 Amg Line Edition De Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Average reliability 4.3% above UK average
84.3%
pass MOT first time
UK average: ~80%
56,919
typical mileage
38,005–74,532 middle half
12.5%
ever had a dangerous defect
recorded at any MOT
0.24
avg MOT failures per car
over 3.3 tests on record

What to check before buying a 2021 Mercedes Benz E 300 Amg Line Edition De Auto

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Mercedes Benz E 300 Amg Line Edition De Auto

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Electric Diesel (97%) 318 84.1% 0.24
Other (2%) 7 92.9% 0.14
Hybrid Electric (Clean) (1%) 3 88.9% 0.33
Electric (0%) 1 100% 0

Mileage Distribution

Most 2021 Mercedes Benz E 300 Amg Line Edition De Auto vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

38,005
low mileage
56,919
typical
74,532
high mileage

Half of all 2021 Mercedes Benz E 300 Amg Line Edition De Auto vehicles fall between 38,005 and 74,532 miles.

2021 Mercedes Benz E 300 Amg Line Edition De Auto — Still on the Road

Strong survival — 271 vehicles still getting MOTs in 2025, 96% of the peak.

32 271 2022 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.

MOT History Averages

3.3
Avg MOT tests per vehicle
0.24
Avg failures per vehicle
1.3
Avg advisories per vehicle

Found a specific Mercedes Benz E 300 Amg Line Edition De Auto?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Mercedes Benz E 300 Amg Line Edition De Auto:

2022