Should I check the MOT history before buying a 2021 Audi A3 Sport 30 TFSI?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 Audi A3 Sport 30 TFSI?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 Audi A3 Sport 30 TFSI?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 Audi A3 Sport 30 TFSI reliable?

Based on MOT data from 977 vehicles, the 2021 Audi A3 Sport 30 TFSI has a first-time MOT pass rate of 93.4%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2021 Audi A3 Sport 30 TFSI?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Audi A3 Sport 30 TFSI (2021)

977 real MOT outcomes analysed • 93.4% first-time pass rate

2021 Audi A3 Sport 30 TFSI

CarHunch analysed 977 real MOT records for the 2021 Audi A3 Sport 30 TFSI. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Colour Breakdown Compare Models

The 2021 Audi A3 Sport 30 TFSI is significantly more reliable than the typical UK car, with a 91.8% first-time pass rate that comfortably beats the 80% national average—and only 7.4% of these vehicles have ever recorded a dangerous defect, well below concern levels. This petrol model shows consistent performance across the board, with 91.5% of petrol variants passing first time.

At just over 27,000 miles median mileage for a three-year-old car, these examples are lightly used, which partly explains the strong results. The real telling detail is the low failure rate: only 0.21 failures per vehicle on average, with minor advisories (1.6 per car) suggesting routine maintenance items rather than structural problems—so when you're inspecting a used example, focus your pre-purchase check on service history and brake wear rather than worrying about hidden mechanical gremlins.

The 2021 Audi A3 Sport 30 TFSI passes its MOT first time more often than most UK vehicles (93.4% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ Around 1 in 20 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

93.4%

UK average ~80%

Better than average

Dangerous (ever)

7.4%

At least once in MOT history

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Avg failures / car

0.21

Over 2.3 tests on record

Low

Typical mileage

27k

Middle half: 20k–36k

For context

✅ Good baseline reliability. A 93.4% 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 1.6 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 977 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.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 977 Audi A3 Sport 30 TFSI cars.

Before you buy a 2021 Audi A3 Sport 30 TFSI

Based on MOT data from 977 vehicles — here's what to check.

📋 Check the full MOT history. 7.4% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (97%)	948	93.2%	0.22

Colour Breakdown

Based on 6,097 Audi A3 Sport 30 TFSI vehicles registered in the UK — across all years. From DVLA registration records.

Black 44.2%

2,693

White 25%

1,527

Grey 18.3%

1,116

Blue 5.6%

341

Silver 5.2%

316

Red 1.3%

Green 0.4%

Mileage Distribution

Most 2021 Audi A3 Sport 30 TFSI 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.

27,162

typical

19,856

low mileage

36,362

high mileage

Half of all 2021 Audi A3 Sport 30 TFSI vehicles fall between 19,856 and 36,362 miles.

Is the mileage you're seeing normal?

✓ Under 19,856 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.

✓ 19,856–36,362 miles — normal for age. This is where most 2021 Audi A3 Sport 30 TFSIs sit.

⚠ Over 49,088 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

2.3

Avg MOT tests per vehicle

0.21

Avg failures per vehicle

1.6

Avg advisories per vehicle

Other model years — Audi A3 Sport 30 TFSI: All A3 Sport 30 TFSI years → Which year to buy? →

2020 2022 2023 2024 2025

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Compare with another model

See how the 2021 Audi A3 Sport 30 TFSI stacks up against a rival.

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