Vauxhall Astra Sri Nav Turbo D (2020)

Estimated running costs and MOT pass rates from 207 MOT tests in 2024.

Annual Cost

£1,674

£140/month

MOT Pass Rate

90%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 12-25

1496cc Diesel

Great Choice

90% pass rate, £1,674/year to run. 8 points above average.

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Diesel1496cc6 years old207 tests41k miles avg

Annual Running Costs

Fuel (Diesel, 1496cc)

~55 mpg

£1,219

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,674

Per month£140/mo

Per week£32/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p 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

90% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 8 points above the average of 82% across all models in our data. It also outperforms the Vauxhall brand average of 84%.

90% of MOT tests on Vauxhall Astra Sri Nav Turbo Ds from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 207 tests across the UK, retests included. The average mileage recorded at those tests was 40,939 miles.

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How Does It Compare?

Rank among 2020 models1826th of 2,554(bottom half)

Rank among Vauxhall models294th of 870(top half)

vs average of all models+8%(82% avg)

vs 2020 models average-2%(92% avg)

vs Vauxhall average+6%(84% avg)

Mileage Analysis

40,939

Average miles

29,600

Expected for age

The average 2020 Vauxhall Astra Sri Nav Turbo D had 40,939 miles on the clock at its 2024 MOT, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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Vauxhall Astra Sri Nav Turbo D by Year

Year	Pass Rate	Tests	Avg Mileage
2021	85%	112	43,523 mi
2020	90%	207	40,939 mi

Similar Cars to Consider

Volkswagen Golf

2018 · 1968cc Diesel

£1,852/year

92%

+2%

Ford Focus

2019 · 1499cc Diesel

£1,824/year

89%

-1%

Mercedes A

2019 · 1461cc Diesel

£1,674/year

91%

+1%

Mercedes A-Class

2018 · 1461cc Diesel

£1,824/year

89%

-1%

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About the 2020 Vauxhall Astra Sri Nav Turbo D

The 2020 Vauxhall Astra Sri Nav Turbo D is a small family car. Our records list a 1496cc diesel engine, though engines vary between versions. 207 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 40,939 miles recorded at its 2024 MOT tests, Vauxhall Astra Sri Nav Turbo D owners cover more miles than the average driver.

2020 Vauxhall Astra Sri Nav Turbo D Fuel Costs

The 1496cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £1,219 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2020 Vauxhall Astra Sri Nav Turbo D?

Total estimated annual running cost is £1,674 (£140/month), broken down as £1,219 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2020 Vauxhall Astra Sri Nav Turbo D

At 6 years old, the Vauxhall Astra Sri Nav Turbo D 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

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.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Medium risk

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

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 Vauxhall Astra Sri Nav Turbo D 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
Vauxhall Astra Sri Nav Turbo D(2020)	90%	£1,219	£200	Grp 12-25	£1,674
Volkswagen Golf(2018)	92%	£1,397	£200	Grp 18-32	£1,852+£178
Ford Focus(2019)	89%	£1,219	£200	Grp 12-25	£1,824+£150
Mercedes A(2019)	91%	£1,219	£200	Grp 12-25	£1,674same
Mercedes A-Class(2018)	89%	£1,219	£200	Grp 12-25	£1,824+£150

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 Vauxhall Astra Sri Nav Turbo D

Is the 2020 Vauxhall Astra Sri Nav Turbo D reliable?

Excellent reliability. Very few MOT failures. 90% of MOT tests on 2020 Vauxhall Astra Sri Nav Turbo Ds ended in a pass, from 207 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data.

How much does a 2020 Vauxhall Astra Sri Nav Turbo D cost to run?

Our estimate is £1,674 a year (£140 a month): £1,219 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2020 Vauxhall Astra Sri Nav Turbo D?

90% of 207 MOT tests on the 2020 Vauxhall Astra Sri Nav Turbo D ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 1826th of 2,554 models first registered in 2020 (bottom half).

Which year Vauxhall Astra Sri Nav Turbo D has the best MOT pass rate?

Of the years with at least 100 tests, the 2020 Vauxhall Astra Sri Nav Turbo D has the highest MOT pass rate at 90% and the 2021 the lowest at 85%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2020 Vauxhall Astra Sri Nav Turbo D?

The average mileage recorded at MOT tests on the 2020 Vauxhall Astra Sri Nav Turbo D is 40,939 miles, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.