Should I check the MOT history before buying a 2020 Audi S5 TDI MHEV Quattro Auto?

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 2020 Audi S5 TDI MHEV Quattro Auto?

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 2020 Audi S5 TDI MHEV Quattro Auto?

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 2020 Audi S5 TDI MHEV Quattro Auto reliable?

Based on MOT data from 140 vehicles, the 2020 Audi S5 TDI MHEV Quattro Auto has a first-time MOT pass rate of 92.8%, 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 2020 Audi S5 TDI MHEV Quattro Auto?

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 S5 TDI MHEV Quattro Auto (2020)

140 real MOT outcomes analysed • 92.8% first-time pass rate

2020 Audi S5 TDI MHEV Quattro Auto

CarHunch analysed 140 real MOT records for the 2020 Audi S5 TDI MHEV Quattro Auto. 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 Still on the Road MOT Averages Compare Models

The 2020 Audi S5 TDI MHEV Quattro Auto is a genuinely reliable performer, with a first-time pass rate of 91.5%—well above the UK average of 80%—and only 15.7% of vehicles ever flagged with a dangerous defect, which is manageable for a premium diesel. This is a well-sorted car that rarely fails its MOT outright.

At 34,226 miles average, these cars are running relatively light for their age, which supports the strong pass rates. The low failure count of 0.31 per vehicle combined with 2.2 advisories per car indicates you're looking at a machine that doesn't throw up structural surprises—when you buy one, focus your pre-purchase inspection on service history and fuel injection cleanliness rather than expecting hidden rot.

We have limited data for the 2020 Audi S5 TDI MHEV Quattro Auto — treat the figures below as indicative rather than definitive.

⚠️ 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

92.8%

UK average ~80%

Better than average

Dangerous (ever)

15.7%

At least once in MOT history

Check this vehicle

Avg failures / car

0.31

Over 3.1 tests on record

Low

Typical mileage

32k

Middle half: 22k–45k

For context

These stats describe 140 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 140 Audi S5 TDI MHEV Quattro Auto cars.

Before you buy a 2020 Audi S5 TDI MHEV Quattro Auto

Based on MOT data from 140 vehicles — here's what to check.

📋 Check the full MOT history. 15.7% 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

Mileage Distribution

Most 2020 Audi S5 TDI MHEV Quattro Auto 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.

31,702

typical

21,600

low mileage

44,981

high mileage

Half of all 2020 Audi S5 TDI MHEV Quattro Auto vehicles fall between 21,600 and 44,981 miles.

Is the mileage you're seeing normal?

✓ Under 21,600 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.

✓ 21,600–44,981 miles — normal for age. This is where most 2020 Audi S5 TDI MHEV Quattro Autos sit.

⚠ Over 60,724 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Audi S5 TDI MHEV Quattro Auto — Still on the Road

Almost all 2020 Audi S5 TDI MHEV Quattro Autos are still on the road.

Strong survival — 125 vehicles still getting MOTs in 2025, 93% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

3.1

Avg MOT tests per vehicle

0.31

Avg failures per vehicle

2.2

Avg advisories per vehicle

Compare with another model

See how the 2020 Audi S5 TDI MHEV Quattro Auto stacks up against a rival.

Average reliability — agree?