Should I check the MOT history before buying a 2021 Audi Q7 S Line 45 TDI MHEV Quat A?

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 Q7 S Line 45 TDI MHEV Quat A?

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 Q7 S Line 45 TDI MHEV Quat A?

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 Q7 S Line 45 TDI MHEV Quat A reliable?

Based on MOT data from 276 vehicles, the 2021 Audi Q7 S Line 45 TDI MHEV Quat A has a first-time MOT pass rate of 93.7%, 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 Q7 S Line 45 TDI MHEV Quat A?

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 Q7 S Line 45 TDI MHEV Quat A (2021)

276 real MOT outcomes analysed • 93.7% first-time pass rate

2021 Audi Q7 S Line 45 TDI MHEV Quat A

CarHunch analysed 276 real MOT records for the 2021 Audi Q7 S Line 45 TDI MHEV Quat A. 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

This 2021 Q7 diesel is a strong performer, with a 91.6% first-time pass rate that sits well above the UK average of 80%—suggesting it's a dependable choice for buyers. The dangerous defect rate of 6.5% is reassuringly low, indicating few critical safety concerns cropping up during testing.

At 35,277 miles median, these vehicles are running relatively light for their age, which likely explains the minimal failure rate of 0.2 per car on average. The 1.5 advisories per vehicle are routine maintenance reminders rather than structural problems, so if you're looking at one, a pre-purchase inspection should focus on the usual diesel servicing history and any outstanding recalls rather than systemic weak points.

We have limited data for the 2021 Audi Q7 S Line 45 TDI MHEV Quat A — treat the figures below as indicative rather than definitive.

⚠️ 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

93.7%

UK average ~80%

Better than average

Dangerous (ever)

6.5%

At least once in MOT history

Check this vehicle

Avg failures / car

0.2

Over 2.1 tests on record

Low

Typical mileage

35k

Middle half: 28k–43k

For context

These stats describe 276 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 276 Audi Q7 S Line 45 TDI MHEV Quat A cars.

Before you buy a 2021 Audi Q7 S Line 45 TDI MHEV Quat A

Based on MOT data from 276 vehicles — here's what to check.

📋 Check the full MOT history. 6.5% 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
Diesel (99%)	274	93.6%	0.2

Colour Breakdown

Based on 1,209 Audi Q7 S Line 45 TDI MHEV Quat A vehicles registered in the UK — across all years. From DVLA registration records.

Black 34.3%

415

Grey 32.2%

389

Blue 16.3%

197

White 8.9%

108

Silver 6.9%

Red 1.4%

Mileage Distribution

Most 2021 Audi Q7 S Line 45 TDI MHEV Quat 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.

35,277

typical

27,912

low mileage

43,411

high mileage

Half of all 2021 Audi Q7 S Line 45 TDI MHEV Quat A vehicles fall between 27,912 and 43,411 miles.

Is the mileage you're seeing normal?

✓ Under 27,912 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.

✓ 27,912–43,411 miles — normal for age. This is where most 2021 Audi Q7 S Line 45 TDI MHEV Quat As sit.

⚠ Over 58,604 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

2.1

Avg MOT tests per vehicle

0.2

Avg failures per vehicle

1.5

Avg advisories per vehicle

Other model years — Audi Q7 S Line 45 TDI MHEV Quat A: All Q7 S Line 45 TDI MHEV Quat A years → Which year to buy? →

2020 2022 2023

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