Should I check the MOT history before buying a 2021 Audi E Tron S Line 55 Quattro?

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 E Tron S Line 55 Quattro?

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 E Tron S Line 55 Quattro?

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 E Tron S Line 55 Quattro reliable?

Based on MOT data from 1,419 vehicles, the 2021 Audi E Tron S Line 55 Quattro has a first-time MOT pass rate of 93.6%, 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 E Tron S Line 55 Quattro?

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 E Tron S Line 55 Quattro (2021)

1,419 real MOT outcomes analysed • 93.6% first-time pass rate

2021 Audi E Tron S Line 55 Quattro

CarHunch analysed 1,419 real MOT records for the 2021 Audi E Tron S Line 55 Quattro. 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 Mileage Distribution MOT Averages Colour Breakdown Compare Models

The 2021 Audi e-tron S Line 55 Quattro is significantly more reliable than average, with a 91.1% first-time pass rate well above the UK's 80% benchmark. Only 9.3% of these vehicles have ever recorded a dangerous defect, which is reassuringly low and suggests the model has few structural or safety weak spots.

At a median of 33,715 miles for three-year-old cars, these e-trons are running below typical mileage for their age, indicating moderate use and generally gentle ownership. The average of just 0.2 failures per vehicle and 1.3 minor advisories per vehicle reveals a robust electric drivetrain with minimal wear issues—if you're buying one, focus your pre-purchase inspection on battery health and charging system integrity rather than mechanical failure risks.

The 2021 Audi E Tron S Line 55 Quattro passes its MOT first time more often than most UK vehicles (93.6% 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

93.6%

UK average ~80%

Better than average

Dangerous (ever)

9.3%

At least once in MOT history

Check this vehicle

Avg failures / car

0.2

Over 2.2 tests on record

Low

Typical mileage

34k

Middle half: 26k–43k

For context

✅ Good baseline reliability. A 93.6% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔍 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 1,419 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 1,419 Audi E Tron S Line 55 Quattro cars.

Before you buy a 2021 Audi E Tron S Line 55 Quattro

Based on MOT data from 1,419 vehicles — here's what to check.

📋 Check the full MOT history. 9.3% 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

Colour Breakdown

Based on 3,314 Audi E Tron S Line 55 Quattro vehicles registered in the UK — across all years. From DVLA registration records.

Black 28.8%

955

Grey 25.5%

844

Blue 25%

830

White 9.7%

323

Silver 7.8%

260

Red 2.9%

Beige 0.2%

Mileage Distribution

Most 2021 Audi E Tron S Line 55 Quattro 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.

33,715

typical

26,442

low mileage

43,055

high mileage

Half of all 2021 Audi E Tron S Line 55 Quattro vehicles fall between 26,442 and 43,055 miles.

Is the mileage you're seeing normal?

✓ Under 26,442 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.

✓ 26,442–43,055 miles — normal for age. This is where most 2021 Audi E Tron S Line 55 Quattros sit.

⚠ Over 58,124 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

0.2

Avg failures per vehicle

1.3

Avg advisories per vehicle

Other model years — Audi E Tron S Line 55 Quattro: All E Tron S Line 55 Quattro years → Which year to buy? →

2020 2022 2023

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