Should I check the MOT history before buying a 2004 Porsche Boxster?

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 Porsche Boxster?

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 Porsche Boxster?

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 Porsche Boxster vehicles have had dangerous defects recorded?

29% 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 Porsche Boxster reliable?

Based on MOT data from 2,842 vehicles, the 2004 Porsche Boxster has a first-time MOT pass rate of 82.3%, 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 Porsche Boxster?

The most frequently recorded MOT issues on the 2004 Porsche Boxster are: Nearside Rear Tyre worn close to the legal limit (68% of vehicles), Under-trays fitted obscuring some underside components (67.1% of vehicles), Offside Rear Tyre worn close to the legal limit (66.9% 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 Porsche Boxster?

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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Porsche Boxster (2004)

2,842 real MOT outcomes analysed • 82.3% first-time pass rate

2004 Porsche Boxster

CarHunch analysed 2,842 real MOT records for the 2004 Porsche Boxster. 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 Porsche Boxster posts an 81.5% first-time pass rate, marginally ahead of the UK average of 80%, but nearly 30% of these cars have encountered dangerous defects at some point—a meaningful red flag for any used buyer. This is a sports car with real structural or safety concerns baked into the cohort.

At nearly 57,000 miles average, these Boxsters show moderate mileage for their age, yet they're averaging 3.63 failures and 19.9 advisories per test, suggesting age-related wear is catching up even at modest odometer readings. Before committing to one, factor in a pre-purchase inspection focused on the cooling system, suspension, and electrical gremlins that typically plague this generation—don't rely on MOT history alone.

The 2004 Porsche Boxster has a decent first-time pass rate (82.3%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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

82.3%

UK average ~80%

Around average

Dangerous (ever)

29.1%

At least once in MOT history

Check this vehicle

Avg failures / car

3.63

Over 19.1 tests on record

High

Typical mileage

55k

Middle half: 40k–71k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 19.9 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 2,842 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 2,842 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 68%

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.

Other issues 67.1%

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

Brake wear 34.9%

Offside Front Brake pipe corroded, covered in grease or other material · Nearside Front Brake pipe corroded, covered in grease or other material · 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.

Exhaust & emissions 20%

Exhaust Lambda reading after 2nd fast idle outside specified limits

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 2,842 Porsche Boxster cars.

Before you buy a 2004 Porsche Boxster

Based on MOT data from 2,842 vehicles — here's what to check.

📋 Check the full MOT history. 29.1% 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%)	2,806	82.3%	3.66

Colour Breakdown

Based on 45,845 Porsche Boxster vehicles registered in the UK — across all years. From DVLA registration records.

Silver 26.2%

12,019

Blue 21.1%

9,693

Black 18.7%

8,566

Grey 14.3%

6,559

Red 8.8%

4,031

White 6%

2,764

Yellow 2.6%

1,172

Green 1.2%

546

Orange 0.4%

201

Brown 0.3%

130

Turquoise 0.2%

100

Purple 0.1%

Mileage Distribution

Most 2004 Porsche Boxster 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.

55,485

typical

40,087

low mileage

71,140

high mileage

Half of all 2004 Porsche Boxster vehicles fall between 40,087 and 71,140 miles.

Is the mileage you're seeing normal?

✓ Under 40,087 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.

✓ 40,087–71,140 miles — normal for age. This is where most 2004 Porsche Boxsters sit.

⚠ Over 96,039 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Porsche Boxster — Still on the Road

Most 2004 Porsche Boxsters are still being driven.

1,901 vehicles still getting MOTs in 2025 — 79% of the peak remain.

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

19.1

Avg MOT tests per vehicle

3.63

Avg failures per vehicle

19.9

Avg advisories per vehicle

Other model years — Porsche Boxster: All Boxster years → Which year to buy? →

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Compare with another model

See how the 2004 Porsche Boxster stacks up against a rival.

Watch for defects — worth knowing