Mercedes Benz

Mercedes Benz Sprinter 314 Premium CDI (2021)

709 real MOT outcomes analysed • 79.3% first-time pass rate

2021 Mercedes Benz Sprinter 314 Premium CDI

CarHunch analysed 709 real MOT records for the 2021 Mercedes Benz Sprinter 314 Premium CDI. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2021 Mercedes-Benz Sprinter 314 Premium CDI has a first-time pass rate of 77.5%, slightly below the UK average of 80%, and 14.8% of vehicles have recorded a dangerous defect at some point—a moderately concerning figure for a commercial workhorse. This suggests reliability is reasonable but not outstanding, and buyers should factor in the elevated risk of serious faults.

At a median mileage of 56,500 miles for a three-year-old van, these Sprinters are running relatively hard, yet they're averaging only 0.68 failures per MOT and 2.5 advisories—fairly typical wear-and-tear for a commercial vehicle under load. Before buying, have a pre-purchase inspection focus on the cooling system, electrical harnesses, and transmission mounts, as these commonly accumulate issues on high-mileage examples.

The 2021 Mercedes Benz Sprinter 314 Premium CDI passes its MOT first time at roughly the UK average rate (79.3%) — solid but worth checking this vehicle's history carefully.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
79.3%
UK average ~80%
Around average
Dangerous (ever)
14.8%
At least once in MOT history
Check this vehicle
Avg failures / car
0.68
Over 2.7 tests on record
Moderate
Typical mileage
56k
Middle half: 39k–74k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 2.5 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 709 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 709 Mercedes Benz Sprinter 314 Premium CDI cars.

UK

Before you buy a 2021 Mercedes Benz Sprinter 314 Premium CDI

Based on MOT data from 709 vehicles — here's what to check.

  • 📋 Check the full MOT history. 14.8% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Colour Breakdown

Based on 977 Mercedes Benz Sprinter 314 Premium CDI vehicles registered in the UK — across all years. From DVLA registration records.

White 54.7%
534
Grey 19.3%
189
Silver 17.3%
169
Blue 7.2%
70
Black 1.5%
15

Mileage Distribution

Most 2021 Mercedes Benz Sprinter 314 Premium CDI vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

56,499
typical
38,859
low mileage
73,549
high mileage

Half of all 2021 Mercedes Benz Sprinter 314 Premium CDI vehicles fall between 38,859 and 73,549 miles.

Is the mileage you're seeing normal?
Under 38,859 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
38,859–73,549 miles — normal for age. This is where most 2021 Mercedes Benz Sprinter 314 Premium CDIs sit.
Over 99,291 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

2.7
Avg MOT tests per vehicle
0.68
Avg failures per vehicle
2.5
Avg advisories per vehicle
Other model years — Mercedes Benz Sprinter 314 Premium CDI: All Sprinter 314 Premium CDI years → Which year to buy? →
2020

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Average reliability — agree?