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Audi A6 S Line TDI Ultra S-a Reliability, MOT Pass Rate & Common Faults

Free Audi A6 S Line TDI Ultra S-a car check

Is the Audi A6 S Line TDI Ultra S-a reliable? We analysed 3,347 real MOT tests across 895 vehicles to find out.

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Data last updated: · Based on 3,347 real MOT tests
MOT Pass Rate
93.0%
Typical Mileage
85,216mi
Annual Mileage
10,066mi/yr
Est. Lifespan
yrs

The Audi A6 S Line TDI Ultra S-a is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Audi A6 S Line TDI Ultra S-a.

Audi A6 S Line TDI Ultra S-a Number Plates

Number plates registered to a Audi A6 S Line TDI Ultra S-a. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Audi A6 S Line TDI Ultra S-a Mileage — What's Normal?

How many miles does a typical Audi A6 S Line TDI Ultra S-a owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
7,187 mi/yr
Typical
10,066 mi/yr
Average
11,278 mi/yr
Heavy usage
13,721 mi/yr

Audi A6 S Line TDI Ultra S-a Mileage Distribution

Total mileage recorded across all Audi A6 S Line TDI Ultra S-a MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
85,216 mi
75th Percentile
108,530 mi
95th Percentile
150,261 mi
Max Recorded
904,444 mi

How Does the Audi A6 S Line TDI Ultra S-a Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
Audi A6 S Line TDI Ultra S-a THIS CAR 93.0% 3,347 85,216 mi — yrs
Audi A3 78% 7,415,025 78,776 mi 29 yrs
Audi A4 76.1% 7,096,957 96,834 mi 31 yrs
Audi A6 78.4% 2,724,792 98,890 mi 31 yrs
Kawasaki Zr 1000 A6F 85% 3,535 14,325 mi 21 yrs

Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi A6 S Line TDI Ultra S-a outperforms both on MOT reliability.

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Should you buy a used Audi A6 S Line TDI Ultra S-a?

The Audi A6 S Line TDI Ultra S-a has an overall MOT pass rate of 93.0% across 3,347 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

A typical Audi A6 S Line TDI Ultra S-a owner drives around 10,066 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

Audi A6 S Line TDI Ultra S-a — Frequently Asked Questions

Is the Audi A6 S Line TDI Ultra S-a reliable?
Based on 3,347 MOT tests, the Audi A6 S Line TDI Ultra S-a has a 93.0% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Audi A6 S Line TDI Ultra S-a?
The most common failure point is general wear and tear.
How many miles does a Audi A6 S Line TDI Ultra S-a do per year?
The typical Audi A6 S Line TDI Ultra S-a does around 10,066 miles per year. Anything significantly above or below this is worth investigating.
How long does a Audi A6 S Line TDI Ultra S-a last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Audi A6 S Line TDI Ultra S-a?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.