Audi A6 S Line 40 TDI S A (2019)
2019 Audi A6 S Line 40 TDI S A
CarHunch analysed 604 real MOT records for the 2019 Audi A6 S Line 40 TDI S A.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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This 2019 A6 S-Line is a remarkably reliable diesel with a first-time MOT pass rate of 95.1%—well ahead of the UK average of 80%—and no vehicles in the dataset have ever recorded a dangerous defect, which is excellent news for buyer safety. The car averages just 0.1 failures per vehicle with virtually no advisories, suggesting Audi's build quality on this generation is holding up very well.
At 60,000 miles median mileage for a five-year-old car, these examples have been driven sensibly and aren't yet at the point where major wear items typically fail. Before buying, have a pre-purchase inspection done anyway—not because these cars are troublesome, but because the absence of advisories suggests owners are maintaining them properly, and you'll want to verify that continues.
The 2019 Audi A6 S Line 40 TDI S A passes its MOT first time more often than most UK vehicles (96.7% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.
These stats describe 604 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.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 604 Audi A6 S Line 40 TDI S A cars.
Before you buy a 2019 Audi A6 S Line 40 TDI S A
Based on MOT data from 604 vehicles — here's what to check.
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Check the full MOT history.
0% 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. -
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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
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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
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (100%) | 603 | 96.7% | 0.1 |
Colour Breakdown
Based on 1,115 Audi A6 S Line 40 TDI S A vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2019 Audi A6 S Line 40 TDI S A 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.
Half of all 2019 Audi A6 S Line 40 TDI S A vehicles fall between 46,800 and 75,398 miles.
2019 Audi A6 S Line 40 TDI S A — Still on the Road
Most 2019 Audi A6 S Line 40 TDI S As are still being driven.
Strong survival — 320 vehicles still getting MOTs in 2025, 85% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.
MOT History Averages
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Compare with another model
See how the 2019 Audi A6 S Line 40 TDI S A stacks up against a rival.