Audi A4 S Line 35 TFSI MHEV (2020)

Estimated running costs and MOT pass rates from 60 MOT tests in 2024.

Annual Cost

£2,386

£199/month

MOT Pass Rate

78%

Average

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 18-32

1984cc Petrol

Check Carefully

78% pass rate, £2,386/year to run. Close to the average across all models.

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Petrol1984cc6 years old60 tests32k miles avg

Annual Running Costs

Fuel (Petrol, 1984cc)

~36 mpg

£1,631

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£500

Total per year£2,386

Per month£199/mo

Per week£46/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

78% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the average of 82% across all models in our data. It falls below the Audi brand average of 90%.

78% of MOT tests on Audi A4 S Line 35 TFSI MHEVs from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 60 tests across the UK, retests included. The average mileage recorded at those tests was 31,690 miles.

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How Does It Compare?

Rank among 2020 models2528th of 2,554(bottom 2%)

Rank among Audi models986th of 1,066(bottom 8%)

vs average of all models-4%(82% avg)

vs 2020 models average-14%(92% avg)

vs Audi average-12%(90% avg)

Mileage Analysis

31,690

Average miles

29,600

Expected for age

The average 2020 Audi A4 S Line 35 TFSI MHEV had 31,690 miles on the clock at its 2024 MOT, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.

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Audi A4 S Line 35 TFSI MHEV by Year

Year	Pass Rate	Tests	Avg Mileage
2021	91%	223	24,390 mi
2020	78%	60	31,690 mi

Similar Cars to Consider

Volkswagen Golf

2019 · 1498cc Petrol

£1,853/year

92%

+14%

Ford Kuga

2018 · 1499cc Petrol

£1,853/year

90%

+12%

MINI Cooper

2018 · 1499cc Petrol

£1,853/year

92%

+14%

Nissan Qashqai

2020 · 1598cc Petrol

£1,853/year

93%

+15%

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About the 2020 Audi A4 S Line 35 TFSI MHEV

The 2020 Audi A4 S Line 35 TFSI MHEV is a premium car. Our records list a 1984cc petrol engine, though engines vary between versions. 60 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 2% of 2020 models for MOT pass rate.

With an average of 31,690 miles recorded at its 2024 MOT tests, Audi A4 S Line 35 TFSI MHEV owners drive about as much as the UK average.

2020 Audi A4 S Line 35 TFSI MHEV 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 £1,631 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2020 Audi A4 S Line 35 TFSI MHEV?

Total estimated annual running cost is £2,386 (£199/month), broken down as £1,631 fuel, £200 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.

Buying a Used 2020 Audi A4 S Line 35 TFSI MHEV

At 6 years old, the Audi A4 S Line 35 TFSI MHEV offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 60 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Timing Chain / Belt

Watch out

At 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 risk

Always 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 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Audi A4 S Line 35 TFSI MHEV(2020)	78%	£1,631	£200	Grp 18-32	£2,386
Volkswagen Golf(2019)	92%	£1,398	£200	Grp 12-25	£1,853-£533
Ford Kuga(2018)	90%	£1,398	£200	Grp 12-25	£1,853-£533
MINI Cooper(2018)	92%	£1,398	£200	Grp 12-25	£1,853-£533
Nissan Qashqai(2020)	93%	£1,398	£200	Grp 12-25	£1,853-£533

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2020 Audi A4 S Line 35 TFSI MHEV

Is the 2020 Audi A4 S Line 35 TFSI MHEV reliable?

Average reliability. Expect some repairs as it ages. 78% of MOT tests on 2020 Audi A4 S Line 35 TFSI MHEVs ended in a pass, from 60 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.

How much does a 2020 Audi A4 S Line 35 TFSI MHEV cost to run?

Our estimate is £2,386 a year (£199 a month): £1,631 fuel, £200 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2020 Audi A4 S Line 35 TFSI MHEV?

78% of 60 MOT tests on the 2020 Audi A4 S Line 35 TFSI MHEV ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2528th of 2,554 models first registered in 2020 (bottom 2%).

What is the average mileage for a 2020 Audi A4 S Line 35 TFSI MHEV?

The average mileage recorded at MOT tests on the 2020 Audi A4 S Line 35 TFSI MHEV is 31,690 miles, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.