Should I check the MOT history before buying a 2012 Audi A4 S Line TDI?

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 2012 Audi A4 S Line TDI?

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 2012 Audi A4 S Line TDI?

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.

Do I need an HPI check when buying a 2012 Audi A4 S Line TDI?

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 A4 S Line TDI (2012)

295 real MOT outcomes analysed • 67.6% first-time pass rate

2012 Audi A4 S Line TDI

CarHunch analysed 295 real MOT records for the 2012 Audi A4 S Line TDI. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 12.4% below UK average

67.6%

pass MOT first time

UK average: ~80%

117,733

typical mileage

100,473–136,914 middle half

ever had a dangerous defect

recorded at any MOT

0.79

avg MOT failures per car

over 5.1 tests on record

What to check before buying a 2012 Audi A4 S Line TDI

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 S Line TDI

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

Inspection

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 (99%)	292	67.5%	0.79
Gas Bi-Fuel (1%)	3	77.8%	0.67

Mileage Distribution

Most 2012 Audi A4 S Line TDI 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.

100,473

low mileage

117,733

typical

136,914

high mileage

Half of all 2012 Audi A4 S Line TDI vehicles fall between 100,473 and 136,914 miles.

2012 Audi A4 S Line TDI — Still on the Road

Strong survival — 168 vehicles still getting MOTs in 2025, 95% of the peak.

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

5.1

Avg MOT tests per vehicle

0.79

Avg failures per vehicle

Avg advisories per vehicle

Found a specific Audi A4 S Line TDI?

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

Other model years — Audi A4 S Line TDI:

2005 2008 2009 2010 2011 2013 2014 2015 2016 2017