Should I check the MOT history before buying a 2009 Audi S4?

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 2009 Audi S4?

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 2009 Audi S4?

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.

How many 2009 Audi S4 vehicles have had dangerous defects recorded?

26% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2009 Audi S4 reliable?

Based on MOT data from 151 vehicles, the 2009 Audi S4 has a first-time MOT pass rate of 89%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2009 Audi S4?

The most frequently recorded MOT issues on the 2009 Audi S4 are: Oil leak, but not excessive (65.8% of vehicles), Under-trays fitted obscuring some underside components (48% of vehicles), Nearside Rear Tyre worn close to the legal limit (41.5% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2009 Audi S4?

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 S4 (2009)

151 real MOT outcomes analysed • 89% first-time pass rate

2009 Audi S4

CarHunch analysed 151 real MOT records for the 2009 Audi S4. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

The 2009 Audi S4 passes its MOT first time at 87.8%, which is comfortably above the UK average of 80%—a genuinely strong result for a 15-year-old performance car. However, just over a quarter of these cars (25.8%) have recorded a dangerous defect at some point, which is a real concern for buyers and suggests you'll need to inspect the brakes and suspension carefully before purchase.

These S4s are running at a reasonable 68,600 miles median, indicating owners have generally looked after them, though the high advisory rate of 11.5 per car tells you there's plenty of minor wear to budget for—especially on a turbocharged engine that demands regular maintenance. Get a pre-purchase inspection focused on the turbo condition, intercooler pipes, and cooling system before committing, as neglect on these areas will be expensive to fix.

We have limited data for the 2009 Audi S4 — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 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

89%

UK average ~80%

Better than average

Dangerous (ever)

25.8%

At least once in MOT history

Check this vehicle

Avg failures / car

1.58

Over 11.6 tests on record

High

Typical mileage

69k

Middle half: 58k–84k

For context

These stats describe 151 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.

Watch for defects — worth knowing

What tends to go wrong

Across 151 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Other issues 65.8%

Oil leak, but not excessive · Under-trays fitted obscuring some underside components · Engine covers fitted obscuring some components in the engine bay · …

Tyre wear 41.5%

Nearside Rear Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 25.4%

Rear Brake pad(s) wearing thin

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Suspension & steering 13.2%

Offside Rear Coil spring corroded · Nearside Front Upper Suspension arm pin or bush worn but not resulting in excessive movement

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 2009.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 151 Audi S4 cars.

Before you buy a 2009 Audi S4

Based on MOT data from 151 vehicles — here's what to check.

📋 Check the full MOT history. 25.8% 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
Petrol (99%)	150	88.9%	1.59

Mileage Distribution

Most 2009 Audi S4 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.

68,614

typical

57,896

low mileage

84,026

high mileage

Half of all 2009 Audi S4 vehicles fall between 57,896 and 84,026 miles.

Is the mileage you're seeing normal?

✓ Under 57,896 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.

✓ 57,896–84,026 miles — normal for age. This is where most 2009 Audi S4s sit.

⚠ Over 113,435 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2009 Audi S4 — Still on the Road

Most 2009 Audi S4s are still being driven.

Strong survival — 94 vehicles still getting MOTs in 2025, 82% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

11.6

Avg MOT tests per vehicle

1.58

Avg failures per vehicle

11.5

Avg advisories per vehicle

Other model years — Audi S4: All S4 years → Which year to buy? →

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Compare with another model

See how the 2009 Audi S4 stacks up against a rival.

Watch for defects — worth knowing