Audi A4 TDI SE (2003)

844 real MOT outcomes analysed • 41.5% first-time pass rate

2003 Audi A4 TDI SE

CarHunch analysed 844 real MOT records for the 2003 Audi A4 TDI SE. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 38.5% below UK average
41.5%
pass MOT first time
UK average: ~80%
185,255
typical mileage
162,524–211,587 middle half
0%
ever had a dangerous defect
recorded at any MOT
0.69
avg MOT failures per car
over 2.6 tests on record

What to check before buying a 2003 Audi A4 TDI SE

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Audi A4 TDI SE

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (100%) 841 41.4% 0.68
Gas Bi-Fuel (0%) 3 77.8% 1.67

Mileage Distribution

Most 2003 Audi A4 TDI SE vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

162,524
low mileage
185,255
typical
211,587
high mileage

Half of all 2003 Audi A4 TDI SE vehicles fall between 162,524 and 211,587 miles.

2003 Audi A4 TDI SE — Still on the Road

Numbers are declining — 55 vehicles still getting MOTs in 2025 (13% of peak).

76 55 2017 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.

MOT History Averages

2.6
Avg MOT tests per vehicle
0.69
Avg failures per vehicle
0
Avg advisories per vehicle

Found a specific Audi A4 TDI SE?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Audi A4 TDI SE:

2001 2002 2004