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Audi A4 Technik 30 TDI S-a Reliability, MOT Pass Rate & Common Faults

Free Audi A4 Technik 30 TDI S-a car check

Is the Audi A4 Technik 30 TDI S-a reliable? We analysed 1,130 real MOT tests across 296 vehicles to find out.

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Data last updated: · Based on 1,130 real MOT tests
MOT Pass Rate
88.6%
Typical Mileage
53,148mi
Annual Mileage
11,112mi/yr
Est. Lifespan
yrs

The Audi A4 Technik 30 TDI 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 A4 Technik 30 TDI S-a.

Audi A4 Technik 30 TDI S-a Number Plates

Number plates registered to a Audi A4 Technik 30 TDI S-a. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Audi A4 Technik 30 TDI S-a MOT Pass Rate by Year

How likely is a Audi A4 Technik 30 TDI S-a to pass its MOT? Here's the pass rate for each registration year, newest first.

87.9%
2020
89.7%
2019

Audi A4 Technik 30 TDI S-a Common Faults & Problems

These are the most common serious faults found on Audi A4 Technik 30 TDI S-a models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Tyre tread depth below requirements of 1.6mm 25
Brake pad(s) less than 1.5 mm thick 4
Brake pad(s) less than 1.5 mm thick 4
Tyre has a tear, caused by separation or partial failure of its structure 3

Audi A4 Technik 30 TDI S-a Mileage — What's Normal?

How many miles does a typical Audi A4 Technik 30 TDI 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
7,314 mi/yr
Typical
11,112 mi/yr
Average
12,354 mi/yr
Heavy usage
15,940 mi/yr

Audi A4 Technik 30 TDI S-a MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Audi A4 Technik 30 TDI S-a year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2020 676 87.9% 37,548 53,758 72,419
2019 427 89.7% 33,885 51,291 72,087

How Long Does a Audi A4 Technik 30 TDI S-a Last?

Based on 296 Audi A4 Technik 30 TDI S-a vehicles on UK roads.

Average
4.7 years
Median
5.0 years

Audi A4 Technik 30 TDI S-a Mileage Distribution

Total mileage recorded across all Audi A4 Technik 30 TDI S-a MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
53,148 mi
75th Percentile
72,982 mi
95th Percentile
104,293 mi
Max Recorded
166,578 mi

Best Year to Buy a Used Audi A4 Technik 30 TDI S-a

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

Best year
2019

89.7% MOT pass rate from 427 tests

Year to avoid
2020

87.9% MOT pass rate from 676 tests

The best year to buy a used Audi A4 Technik 30 TDI S-a is 2019, which has the highest MOT pass rate at 89.7% across 427 tests. The 2020 model year has the lowest pass rate at 87.9% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Audi A4 Technik 30 TDI 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 A4 Technik 30 TDI S-a THIS CAR 88.6% 1,130 53,148 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
Toyota Yaris Sport Vvt-i 96.9% 612 51,067 mi — yrs

Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi A4 Technik 30 TDI S-a outperforms both on MOT reliability.

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Should you buy a used Audi A4 Technik 30 TDI S-a?

The Audi A4 Technik 30 TDI S-a has an overall MOT pass rate of 88.6% across 1,130 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 A4 Technik 30 TDI S-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 A4 Technik 30 TDI S-a owner drives around 11,112 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 A4 Technik 30 TDI S-a — Frequently Asked Questions

Is the Audi A4 Technik 30 TDI S-a reliable?
Based on 1,130 MOT tests, the Audi A4 Technik 30 TDI S-a has a 88.6% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Audi A4 Technik 30 TDI S-a?
The most common failure point is general wear and tear.
How many miles does a Audi A4 Technik 30 TDI S-a do per year?
The typical Audi A4 Technik 30 TDI S-a does around 11,112 miles per year. Anything significantly above or below this is worth investigating.
How long does a Audi A4 Technik 30 TDI S-a last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Audi A4 Technik 30 TDI 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.
What is the best year to buy a Audi A4 Technik 30 TDI S-a?
Based on MOT pass rates, the best year to buy a used Audi A4 Technik 30 TDI S-a is 2019 with a 89.7% pass rate across 427 tests.