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Audi Q8 S Line 55 TFSI MHEV QUAT A Reliability, MOT Pass Rate & Common Faults

Free Audi Q8 S Line 55 TFSI MHEV QUAT A car check

Is the Audi Q8 S Line 55 TFSI MHEV QUAT A reliable? We analysed 771 real MOT tests across 376 vehicles to find out.

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Data last updated: · Based on 771 real MOT tests
MOT Pass Rate
90.9%
Typical Mileage
31,768mi
Annual Mileage
7,211mi/yr
Est. Lifespan
yrs

The Audi Q8 S Line 55 TFSI MHEV QUAT A is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Audi Q8 S Line 55 TFSI MHEV QUAT A.

Audi Q8 S Line 55 TFSI MHEV QUAT A Number Plates

Number plates registered to a Audi Q8 S Line 55 TFSI MHEV QUAT A. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Audi Q8 S Line 55 TFSI MHEV QUAT A MOT Pass Rate by Year

How likely is a Audi Q8 S Line 55 TFSI MHEV QUAT A to pass its MOT? Here's the pass rate for each registration year, newest first.

85.6%
2023
91.3%
2022
93.7%
2021
90.8%
2020

Audi Q8 S Line 55 TFSI MHEV QUAT A Common Faults & Problems

These are the most common serious faults found on Audi Q8 S Line 55 TFSI MHEV QUAT A models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Tyre tread depth below requirements of 1.6mm 24
Brake pad(s) less than 1.5 mm thick 2

Audi Q8 S Line 55 TFSI MHEV QUAT A Mileage — What's Normal?

How many miles does a typical Audi Q8 S Line 55 TFSI MHEV QUAT A owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
4,376 mi/yr
Typical
7,211 mi/yr
Average
8,145 mi/yr
Heavy usage
9,864 mi/yr

Audi Q8 S Line 55 TFSI MHEV QUAT A MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Audi Q8 S Line 55 TFSI MHEV QUAT A year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2023 111 85.6% 21,802 29,877 43,212
2022 184 91.3% 18,358 26,224 34,779
2021 158 93.7% 23,604 33,920 45,201
2020 295 90.8% 25,656 33,334 44,509

How Long Does a Audi Q8 S Line 55 TFSI MHEV QUAT A Last?

Based on 376 Audi Q8 S Line 55 TFSI MHEV QUAT A vehicles on UK roads.

Average
3.1 years
Median
3.0 years

Audi Q8 S Line 55 TFSI MHEV QUAT A Mileage Distribution

Total mileage recorded across all Audi Q8 S Line 55 TFSI MHEV QUAT A MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
31,768 mi
75th Percentile
42,117 mi
95th Percentile
67,760 mi
Max Recorded
105,745 mi

Best Year to Buy a Used Audi Q8 S Line 55 TFSI MHEV QUAT A

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

Best year
2021

93.7% MOT pass rate from 158 tests

Year to avoid
2023

85.6% MOT pass rate from 111 tests

The best year to buy a used Audi Q8 S Line 55 TFSI MHEV QUAT A is 2021, which has the highest MOT pass rate at 93.7% across 158 tests. The 2023 model year has the lowest pass rate at 85.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Audi Q8 S Line 55 TFSI MHEV QUAT A Compare?

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

Model Pass Rate Tests Typical Mileage Lifespan
Audi Q8 S Line 55 TFSI MHEV QUAT A THIS CAR 90.9% 771 31,768 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
Seat Leon Cupra ST R TSI 4DRIVE S-a 90.8% 758 29,650 mi — yrs

Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi Q8 S Line 55 TFSI MHEV QUAT A outperforms both on MOT reliability.

Found a Audi Q8 S Line 55 TFSI MHEV QUAT A you like?

Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.

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Should you buy a used Audi Q8 S Line 55 TFSI MHEV QUAT A?

The Audi Q8 S Line 55 TFSI MHEV QUAT A has an overall MOT pass rate of 90.9% across 771 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 Q8 S Line 55 TFSI MHEV QUAT A 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 Q8 S Line 55 TFSI MHEV QUAT A owner drives around 7,211 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 Q8 S Line 55 TFSI MHEV QUAT A — Frequently Asked Questions

Is the Audi Q8 S Line 55 TFSI MHEV QUAT A reliable?
Based on 771 MOT tests, the Audi Q8 S Line 55 TFSI MHEV QUAT A has a 90.9% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Audi Q8 S Line 55 TFSI MHEV QUAT A?
The most common failure point is general wear and tear.
How many miles does a Audi Q8 S Line 55 TFSI MHEV QUAT A do per year?
The typical Audi Q8 S Line 55 TFSI MHEV QUAT A does around 7,211 miles per year. Anything significantly above or below this is worth investigating.
How long does a Audi Q8 S Line 55 TFSI MHEV QUAT A last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Audi Q8 S Line 55 TFSI MHEV QUAT 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.
What is the best year to buy a Audi Q8 S Line 55 TFSI MHEV QUAT A?
Based on MOT pass rates, the best year to buy a used Audi Q8 S Line 55 TFSI MHEV QUAT A is 2021 with a 93.7% pass rate across 158 tests.