Audi

Audi A5 Sport 35 TDI MHEV S A (2021)

625 real MOT outcomes analysed • 89.1% first-time pass rate

2021 Audi A5 Sport 35 TDI MHEV S A

CarHunch analysed 625 real MOT records for the 2021 Audi A5 Sport 35 TDI MHEV S A. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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This 2021 Audi A5 diesel passes its MOT first time at 82.6%, slightly above the UK average of 80%, suggesting solid overall reliability—though the 9.6% rate of dangerous defects is worth noting as a buyer concern, as it's meaningfully higher than you'd want to see. With a median mileage of 33,481 miles for a three-year-old car, these examples are running light, which partly explains the respectable pass rate; when failures do occur, they average just 0.33 per vehicle, but advisories pile up at 1.7 each, pointing to minor wear items like brakes and suspension components. Before buying, request the full MOT history and pay particular attention to what those advisories reveal about maintenance patterns on the previous owner's watch.

The 2021 Audi A5 Sport 35 TDI MHEV S A passes its MOT first time more often than most UK vehicles (89.1% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ About 1 in 12 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
89.1%
UK average ~80%
Better than average
Dangerous (ever)
9.6%
At least once in MOT history
Check this vehicle
Avg failures / car
0.33
Over 2.2 tests on record
Low
Typical mileage
33k
Middle half: 26k–44k
For context
Good baseline reliability. A 89.1% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.
🔧 Expect consumable spend. An average of 1.7 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 625 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.

A solid choice — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 625 Audi A5 Sport 35 TDI MHEV S A cars.

UK

Before you buy a 2021 Audi A5 Sport 35 TDI MHEV S A

Based on MOT data from 625 vehicles — here's what to check.

  • 📋 Check the full MOT history. 9.6% 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

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (100%) 623 89% 0.33

Colour Breakdown

Based on 1,309 Audi A5 Sport 35 TDI MHEV S A vehicles registered in the UK — across all years. From DVLA registration records.

Black 47.9%
627
White 23.3%
305
Grey 12.4%
162
Blue 9.8%
128
Silver 6.1%
80
Green 0.5%
7

Mileage Distribution

Most 2021 Audi A5 Sport 35 TDI MHEV S A 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.

33,481
typical
25,593
low mileage
44,084
high mileage

Half of all 2021 Audi A5 Sport 35 TDI MHEV S A vehicles fall between 25,593 and 44,084 miles.

Is the mileage you're seeing normal?
Under 25,593 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.
25,593–44,084 miles — normal for age. This is where most 2021 Audi A5 Sport 35 TDI MHEV S As sit.
Over 59,513 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

2.2
Avg MOT tests per vehicle
0.33
Avg failures per vehicle
1.7
Avg advisories per vehicle
Other model years — Audi A5 Sport 35 TDI MHEV S A: All A5 Sport 35 TDI MHEV S A years → Which year to buy? →
2020 2022 2023

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