Should I check the MOT history before buying a 2004 Seat Leon?

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 2004 Seat Leon?

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 2004 Seat Leon?

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 2004 Seat Leon vehicles have had dangerous defects recorded?

30% 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 2004 Seat Leon reliable?

Based on MOT data from 9,611 vehicles, the 2004 Seat Leon has a first-time MOT pass rate of 73.6%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2004 Seat Leon?

The most frequently recorded MOT issues on the 2004 Seat Leon are: Nearside Front Tyre worn close to the legal limit (84.3% of vehicles), Offside Front Tyre worn close to the legal limit (82.6% of vehicles), Nearside Rear Tyre worn close to the legal limit (63.7% 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 2004 Seat Leon?

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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Seat Leon (2004)

9,611 real MOT outcomes analysed • 73.6% first-time pass rate

2004 Seat Leon

CarHunch analysed 9,611 real MOT records for the 2004 Seat Leon. 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 Colour Breakdown Compare Models

The 2004 SEAT LEON falls notably short of the UK average pass rate at 73.6% versus 80%, and this is a genuine concern: nearly a third of these cars (30.4%) have recorded a dangerous defect at some point. Petrol and diesel variants perform identically, so fuel choice won't help you dodge reliability issues with this generation.

These cars are averaging over 86,000 miles, so mileage alone isn't the culprit—the real story is the 4.57 average failures per vehicle, suggesting structural wear rather than one-off problems. Before buying, get a pre-purchase inspection that specifically targets electrical systems and suspension, which typically dominate the 21.8 advisories per car.

The 2004 Seat Leon has a below-average first-time pass rate (73.6% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ 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

73.6%

UK average ~80%

Below average

Dangerous (ever)

30.4%

At least once in MOT history

Check this vehicle

Avg failures / car

4.57

Over 16.4 tests on record

High

Typical mileage

74k

Middle half: 60k–89k

For context

⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.

🔧 Expect consumable spend. An average of 21.8 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 9,611 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.

Buyer beware — pass it on

What tends to go wrong

Across 9,611 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 84.3%

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

Other issues 38.1%

Under-trays fitted obscuring some underside components · Child seat fitted not allowing full inspection of adult belt · Oil leak, but not excessive · …

Brake wear 35.8%

Front Brake pad(s) wearing thin · Rear Brake pad(s) wearing thin · Front brake disc worn, pitted or scored, but not seriously weakened · …

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

Data covers a 3-year window centred on 2004.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 9,611 Seat Leon cars.

Before you buy a 2004 Seat Leon

Based on MOT data from 9,611 vehicles — here's what to check.

📋 Check the full MOT history. 30.4% 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 (59%)	5,686	73.6%	4.57
Diesel (41%)	3,919	73.6%	4.56

Colour Breakdown

Based on 252,546 Seat Leon vehicles registered in the UK — across all years. From DVLA registration records.

Grey 22.6%

57,047

Black 21.5%

54,257

Blue 15.2%

38,430

White 14.7%

37,033

Red 13.7%

34,539

Silver 8.4%

21,158

Yellow 1.5%

3,790

Green 0.9%

2,356

Purple 0.9%

2,270

Orange 0.4%

896

Beige 0.2%

595

Bronze 0.1%

175

Mileage Distribution

Most 2004 Seat Leon 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.

74,334

typical

59,897

low mileage

89,345

high mileage

Half of all 2004 Seat Leon vehicles fall between 59,897 and 89,345 miles.

Is the mileage you're seeing normal?

✓ Under 59,897 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.

✓ 59,897–89,345 miles — normal for age. This is where most 2004 Seat Leons sit.

⚠ Over 120,615 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Seat Leon — Still on the Road

Numbers are thinning — 13% of 2004 Seat Leons are still active.

Numbers are declining — 1,051 vehicles still getting MOTs in 2025 (13% of 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

16.4

Avg MOT tests per vehicle

4.57

Avg failures per vehicle

21.8

Avg advisories per vehicle

Other model years — Seat Leon: All Leon years → Which year to buy? →

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