Bentley

Bentley Arnage (2003)

198 real MOT outcomes analysed • 87% first-time pass rate

2003 Bentley Arnage

CarHunch analysed 198 real MOT records for the 2003 Bentley Arnage. 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 Mileage Distribution Still on the Road MOT Averages Compare Models

The 2003 Bentley Arnage passes its MOT first time at 87%, which is a solid 7 percentage points above the UK average—but a fifth of these cars have recorded dangerous defects, so mechanical integrity deserves close inspection before purchase. Petrol vs diesel breakdowns aren't available for this model, but the headline reliability picture is encouraging relative to the national benchmark.

At 20,000 miles above the UK median for its age, the average Arnage in this cohort has seen moderate use, yet it's racking up 2.5 failures and nearly 11 advisories per test—a sign that keeping one running costs money and attention. Before committing, budget for specialist servicing and get a pre-purchase inspection focused on the electrical and suspension systems, where advisory trends typically cluster on this model.

We have limited data for the 2003 Bentley Arnage — 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
87%
UK average ~80%
Around average
Dangerous (ever)
20.7%
At least once in MOT history
Check this vehicle
Avg failures / car
2.54
Over 18.2 tests on record
High
Typical mileage
41k
Middle half: 28k–56k
For context

These stats describe 198 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.

Average reliability — agree?

What tends to go wrong

Across 198 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 65.5%
Offside Rear Tyre worn close to the legal limit · Nearside 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 33.2%
Parking brake: efficiency below requirements · Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair.
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 28.6%
Engine covers fitted obscuring some components in the engine bay · Under-trays fitted obscuring some underside components · Oil leak, but not excessive · …
Suspension & steering 18%
Offside Rear Shock absorber has a light misting of oil
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 2003.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 198 Bentley Arnage cars.

UK

Before you buy a 2003 Bentley Arnage

Based on MOT data from 198 vehicles — here's what to check.

  • 📋 Check the full MOT history. 20.7% 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Mileage Distribution

Most 2003 Bentley Arnage 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.

40,986
typical
27,856
low mileage
55,637
high mileage

Half of all 2003 Bentley Arnage vehicles fall between 27,856 and 55,637 miles.

Is the mileage you're seeing normal?
Under 27,856 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.
27,856–55,637 miles — normal for age. This is where most 2003 Bentley Arnages sit.
Over 75,109 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2003 Bentley Arnage — Still on the Road

Most 2003 Bentley Arnages are still being driven.

123 vehicles still getting MOTs in 2025 — 75% of the peak remain.

163 123 2014 2025

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

18.2
Avg MOT tests per vehicle
2.54
Avg failures per vehicle
10.8
Avg advisories per vehicle
Other model years — Bentley Arnage: All Arnage years → Which year to buy? →
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Average reliability — agree?