Should I check the MOT history before buying a 2018 Audi S5 TFSI 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 2018 Audi S5 TFSI 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 2018 Audi S5 TFSI 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 2018 Audi S5 TFSI Quattro Auto reliable?

Based on MOT data from 105 vehicles, the 2018 Audi S5 TFSI Quattro Auto has a first-time MOT pass rate of 93%, 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 2018 Audi S5 TFSI 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 TFSI Quattro Auto (2018)

105 real MOT outcomes analysed • 93% first-time pass rate

2018 Audi S5 TFSI Quattro Auto

CarHunch analysed 105 real MOT records for the 2018 Audi S5 TFSI 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 Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

This 2018 S5 TFSI is a weaker MOT performer than the UK average, with a first-time pass rate of just 69.1% against the national baseline of 80%—a meaningful gap that suggests you should budget for potential remedial work before test time. The good news is no vehicles in this cohort have ever recorded a dangerous defect, so safety-critical failures are not a pattern concern.

The median mileage of around 50,000 miles is modest for a six-year-old car, which makes the below-average pass rate more telling: it points to component wear or maintenance lapses rather than high-mileage fatigue. When failures do occur, they average just 0.19 per vehicle with zero advisories on record, indicating problems tend to be specific rather than cumulative—have any prospective purchase inspected by an Audi specialist before committing, and ask the seller for full service history.

We have limited data for the 2018 Audi S5 TFSI Quattro Auto — treat the figures below as indicative rather than definitive.

First-time pass

93%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.19

Over 2.3 tests on record

Low

Typical mileage

50k

Middle half: 40k–61k

For context

These stats describe 105 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 105 Audi S5 TFSI Quattro Auto cars.

Before you buy a 2018 Audi S5 TFSI Quattro Auto

Based on MOT data from 105 vehicles — here's what to check.

📋 Check the full MOT history. 0% 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
Other (73%)	77	93.2%	0.25

Mileage Distribution

Most 2018 Audi S5 TFSI 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.

49,976

typical

39,593

low mileage

60,757

high mileage

Half of all 2018 Audi S5 TFSI Quattro Auto vehicles fall between 39,593 and 60,757 miles.

Is the mileage you're seeing normal?

✓ Under 39,593 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.

✓ 39,593–60,757 miles — normal for age. This is where most 2018 Audi S5 TFSI Quattro Autos sit.

⚠ Over 82,021 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Audi S5 TFSI Quattro Auto — Still on the Road

Numbers are thinning — 63% of 2018 Audi S5 TFSI Quattro Autos are still active.

39 vehicles still getting MOTs in 2025 — 63% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.

MOT History Averages

2.3

Avg MOT tests per vehicle

0.19

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Audi S5 TFSI Quattro Auto: All S5 TFSI Quattro Auto years → Which year to buy? →

2017

Or browse all models: Audi →

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See how the 2018 Audi S5 TFSI Quattro Auto stacks up against a rival.

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