AUDI A4 S LINE 35 TFSI MHEV S-A (2020)
Running costs, reliability data, and common problems from 139 real MOT tests.
Annual Cost
£1,927
£161/month
MOT Pass Rate
85%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1984cc Petrol
Solid Option
85% pass rate, £1927/year to run. Close to the national average.
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Annual Running Costs
~36 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the AUDI brand average of 90%.
At 6 years old, 85% of AUDI A4 S LINE 35 TFSI MHEV S-As from 2020 passed their MOT first time in 2026. That's based on 139 tests across the UK. The average mileage at this age is 36,814 miles.
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How Does It Compare?
Mileage Analysis
36,814
Average miles
44,400
Expected for age
The average 2020 AUDI A4 S LINE 35 TFSI MHEV S-A has 36,814 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2021 model with a 91% MOT pass rate, while the 2020 model has the lowest at 85%. Consider a different year if reliability is a priority.
AUDI A4 S LINE 35 TFSI MHEV S-A by Year
Similar Cars to Consider
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About the 2020 AUDI A4 S LINE 35 TFSI MHEV S-A
The 2020 AUDI A4 S LINE 35 TFSI MHEV S-A is a premium with a 1984cc petrol engine. 139 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 92% of 2020 cars for MOT pass rates.
With an average of 36,814 miles at 6 years old, AUDI A4 S LINE 35 TFSI MHEV S-A owners drive about as much as the UK average.
2020 AUDI A4 S LINE 35 TFSI MHEV S-A Fuel Costs
The 1984cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 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 A4 S LINE 35 TFSI MHEV S-A?
Total estimated annual running cost is £1,927 (£161/month), broken down as £1327 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 85% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2020 AUDI A4 S LINE 35 TFSI MHEV S-A
At 6 years old, the AUDI A4 S LINE 35 TFSI MHEV S-A 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 A4 S LINE 35 TFSI MHEV S-A's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 6 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.
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 A4 S LINE 35 TFSI MHEV S-A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUDI A4 S LINE 35 TFSI MHEV S-A(2020) | 85% | £1327 | £195 | Grp 18-32 | £1927 |
| VOLKSWAGEN GOLF(2019) | 92% | £1137 | £190 | Grp 12-25 | £1582-£345 |
| FORD KUGA(2018) | 90% | £1137 | £190 | Grp 12-25 | £1582-£345 |
| MINI COOPER(2018) | 92% | £1137 | £190 | Grp 12-25 | £1582-£345 |
| NISSAN QASHQAI(2020) | 93% | £1137 | £190 | Grp 12-25 | £1582-£345 |
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.
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VOLKSWAGEN GOLF
2019 · 1498cc Petrol
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2018 · 1499cc Petrol
MINI COOPER
2018 · 1499cc Petrol
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