AUDI A3 S LINE 30 TFSI (2020)
Running costs, reliability data, and common problems from 1,626 real MOT tests.
Annual Cost
£1,405
£117/month
MOT Pass Rate
94%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 1-8
999cc Petrol
Great Choice
94% pass rate, £1405/year to run. 12 points above average.
Check a specific AUDI A3 S LINE 30 TFSI
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~50 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this AUDI A3 S LINE 30 TFSI
Compare quotes and find the best deal
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 6 years old, 94% of AUDI A3 S LINE 30 TFSIs from 2020 passed their MOT first time in 2026. That's based on 1,626 tests across the UK. The average mileage at this age is 31,057 miles.
Got a AUDI A3 S LINE 30 TFSI you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
31,057
Average miles
44,400
Expected for age
The average 2020 AUDI A3 S LINE 30 TFSI has 31,057 miles on the clock, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Looking at a specific AUDI A3 S LINE 30 TFSI?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
Best Year to Buy?
The most reliable year is the 2022 model with a 96% MOT pass rate, while the 2020 model has the lowest at 94%. Consider a different year if reliability is a priority.
AUDI A3 S LINE 30 TFSI by Year
Similar Cars to Consider
Check a Specific Audi A3 s line 30 tfsi
Enter a reg plate to get the full MOT history, health score, and mileage verification.
Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.
About the 2020 AUDI A3 S LINE 30 TFSI
The 2020 AUDI A3 S LINE 30 TFSI is a premium with a 999cc petrol engine. 1,626 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 31,057 miles at 6 years old, AUDI A3 S LINE 30 TFSI owners tend to use this car less than the typical driver.
2020 AUDI A3 S LINE 30 TFSI Fuel Costs
The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a premium. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 AUDI A3 S LINE 30 TFSI?
Total estimated annual running cost is £1,405 (£117/month), broken down as £955 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI A3 S LINE 30 TFSI Reliability Trend
The AUDI A3 S LINE 30 TFSI has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2020 AUDI A3 S LINE 30 TFSI
At 6 years old, the AUDI A3 S LINE 30 TFSI offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
Based on the 2020 AUDI A3 S LINE 30 TFSI's fuel type, age, and engine size, these are the most likely problem areas to check.
Coil Pack Failure
Medium riskSmaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2020 AUDI A3 S LINE 30 TFSI stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUDI A3 S LINE 30 TFSI(2020) | 94% | £955 | £195 | Grp 1-8 | £1405 |
| FORD FIESTA(2018) | 90% | £955 | £190 | Grp 1-8 | £1400-£5 |
| VOLKSWAGEN GOLF(2019) | 92% | £1137 | £190 | Grp 12-25 | £1582+£177 |
| VAUXHALL CORSA(2018) | 85% | £1137 | £190 | Grp 8-20 | £1732+£327 |
| NISSAN QASHQAI(2018) | 87% | £955 | £190 | Grp 5-15 | £1550+£145 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Audi Models
Explore other Audi cars or similar models in the same category.
AUDI A3
2015 · 1598cc Diesel
AUDI A1
2016 · 1395cc Petrol
AUDI A4
2017 · 1968cc Diesel
FORD FIESTA
2018 · 998cc Petrol
VOLKSWAGEN GOLF
2019 · 1498cc Petrol
VAUXHALL CORSA
2018 · 1398cc Petrol
Related Guides
In-depth articles relevant to the Audi A3 s line 30 tfsi.
Cars That Lose Value Fastest: Models to Avoid for Depreciation
8 min read
Buying GuideIs an Extended Car Warranty Worth It? UK Guide for 2026
8 min read
Running CostsCheapest Cars to Run in 2026: Real Data from 19.8 Million MOT Tests
9 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific AUDI A3 S LINE 30 TFSI
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a AUDI A3 S LINE 30 TFSI? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data