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Audi S6 TDI QUATTRO Auto Reliability, MOT Pass Rate & Common Faults

Free Audi S6 TDI QUATTRO Auto car check

Is the Audi S6 TDI QUATTRO Auto reliable? We analysed 764 real MOT tests across 205 vehicles to find out.

Got a specific Audi S6 TDI QUATTRO Auto? Enter the reg for a free check:

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Data last updated: · Based on 764 real MOT tests
MOT Pass Rate
92.0%
Typical Mileage
41,503mi
Annual Mileage
8,846mi/yr
Est. Lifespan
yrs

The Audi S6 TDI QUATTRO Auto is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Audi S6 TDI QUATTRO Auto.

Audi S6 TDI QUATTRO Auto Number Plates

Number plates registered to a Audi S6 TDI QUATTRO Auto. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Audi S6 TDI QUATTRO Auto MOT Pass Rate by Year

How likely is a Audi S6 TDI QUATTRO Auto to pass its MOT? Here's the pass rate for each registration year, newest first.

88.8%
2020
93.6%
2019

Audi S6 TDI QUATTRO Auto Common Faults & Problems

These are the most common serious faults found on Audi S6 TDI QUATTRO Auto models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Tyre tread depth below requirements of 1.6mm 9
Tyre has ply or cords exposed 2
Tyre has ply or cords exposed 2

Audi S6 TDI QUATTRO Auto Mileage — What's Normal?

How many miles does a typical Audi S6 TDI QUATTRO Auto owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
6,219 mi/yr
Typical
8,846 mi/yr
Average
10,629 mi/yr
Heavy usage
12,837 mi/yr

Audi S6 TDI QUATTRO Auto MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Audi S6 TDI QUATTRO Auto year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2020 215 88.8% 28,308 40,501 52,040
2019 483 93.6% 29,706 41,721 57,386

How Long Does a Audi S6 TDI QUATTRO Auto Last?

Based on 205 Audi S6 TDI QUATTRO Auto vehicles on UK roads.

Average
5.0 years
Median
5.0 years

Audi S6 TDI QUATTRO Auto Mileage Distribution

Total mileage recorded across all Audi S6 TDI QUATTRO Auto MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
41,503 mi
75th Percentile
56,776 mi
95th Percentile
97,340 mi
Max Recorded
206,195 mi

Best Year to Buy a Used Audi S6 TDI QUATTRO Auto

Based on MOT pass rates across all registration years with sufficient test data.

Best year
2019

93.6% MOT pass rate from 483 tests

Year to avoid
2020

88.8% MOT pass rate from 215 tests

The best year to buy a used Audi S6 TDI QUATTRO Auto is 2019, which has the highest MOT pass rate at 93.6% across 483 tests. The 2020 model year has the lowest pass rate at 88.8% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Audi S6 TDI QUATTRO Auto Compare?

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

Model Pass Rate Tests Typical Mileage Lifespan
Audi S6 TDI QUATTRO Auto THIS CAR 92.0% 764 41,503 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
Chevrolet Gmc Corvette V8 Auto 87.2% 1,377 53,506 mi 28 yrs

Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi S6 TDI QUATTRO Auto outperforms both on MOT reliability.

Found a Audi S6 TDI QUATTRO Auto you like?

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Should you buy a used Audi S6 TDI QUATTRO Auto?

The Audi S6 TDI QUATTRO Auto has an overall MOT pass rate of 92.0% across 764 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Audi S6 TDI QUATTRO Auto with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.

A typical Audi S6 TDI QUATTRO Auto owner drives around 8,846 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 S6 TDI QUATTRO Auto — Frequently Asked Questions

Is the Audi S6 TDI QUATTRO Auto reliable?
Based on 764 MOT tests, the Audi S6 TDI QUATTRO Auto has a 92.0% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Audi S6 TDI QUATTRO Auto?
The most common failure point is general wear and tear.
How many miles does a Audi S6 TDI QUATTRO Auto do per year?
The typical Audi S6 TDI QUATTRO Auto does around 8,846 miles per year. Anything significantly above or below this is worth investigating.
How long does a Audi S6 TDI QUATTRO Auto last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Audi S6 TDI QUATTRO Auto?
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.
What is the best year to buy a Audi S6 TDI QUATTRO Auto?
Based on MOT pass rates, the best year to buy a used Audi S6 TDI QUATTRO Auto is 2019 with a 93.6% pass rate across 483 tests.