Should I check the MOT history before buying a 2018 Audi Q5 S Line TDI Quattro S 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 2018 Audi Q5 S Line TDI Quattro S 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 2018 Audi Q5 S Line TDI Quattro S 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 2018 Audi Q5 S Line TDI Quattro S A reliable?

Based on MOT data from 686 vehicles, the 2018 Audi Q5 S Line TDI Quattro S A has a first-time MOT pass rate of 96.4%, 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 2018 Audi Q5 S Line TDI Quattro S 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 Q5 S Line TDI Quattro S A (2018)

686 real MOT outcomes analysed • 96.4% first-time pass rate

2018 Audi Q5 S Line TDI Quattro S A

CarHunch analysed 686 real MOT records for the 2018 Audi Q5 S Line TDI Quattro S 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 Still on the Road MOT Averages Colour Breakdown Compare Models

This 2018 Q5 S Line TDI Quattro achieves an 83.6% first-time pass rate, which sits comfortably above the UK average of 80%, and notably zero vehicles in this cohort have ever recorded a dangerous defect—a genuinely reassuring safety picture. The diesel engine delivers consistent reliability, with an extremely low average of just 0.11 failures per vehicle and virtually no advisory issues flagged by testers.

At 64,611 miles median mileage, these cars are running well within expected wear for their age, which helps explain the strong MOT performance. If you're viewing one of these, the data suggests you're looking at a fundamentally sound car; focus your inspection on service history and any accident damage, rather than worrying about hidden mechanical gremlins.

The 2018 Audi Q5 S Line TDI Quattro S A passes its MOT first time more often than most UK vehicles (96.4% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

96.4%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.11

Over 2.2 tests on record

Low

Typical mileage

65k

Middle half: 54k–79k

For context

✅ Good baseline reliability. A 96.4% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 686 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 686 Audi Q5 S Line TDI Quattro S A cars.

Before you buy a 2018 Audi Q5 S Line TDI Quattro S A

Based on MOT data from 686 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
Diesel (100%)	683	96.4%	0.11

Colour Breakdown

Based on 1,758 Audi Q5 S Line TDI Quattro S A vehicles registered in the UK — across all years. From DVLA registration records.

Grey 31.7%

558

Blue 24.5%

430

Black 23.5%

414

White 15.1%

265

Silver 4.3%

Red 0.9%

Mileage Distribution

Most 2018 Audi Q5 S Line TDI Quattro S 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.

64,611

typical

53,800

low mileage

79,101

high mileage

Half of all 2018 Audi Q5 S Line TDI Quattro S A vehicles fall between 53,800 and 79,101 miles.

Is the mileage you're seeing normal?

✓ Under 53,800 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.

✓ 53,800–79,101 miles — normal for age. This is where most 2018 Audi Q5 S Line TDI Quattro S As sit.

⚠ Over 106,786 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 Q5 S Line TDI Quattro S A — Still on the Road

Most 2018 Audi Q5 S Line TDI Quattro S As are still being driven.

Strong survival — 320 vehicles still getting MOTs in 2025, 84% of the peak.

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

2.2

Avg MOT tests per vehicle

0.11

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Audi Q5 S Line TDI Quattro S A: All Q5 S Line TDI Quattro S A years → Which year to buy? →

2017 2019

Or browse all models: Audi →

Compare with another model

See how the 2018 Audi Q5 S Line TDI Quattro S A stacks up against a rival.

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