VAUXHALL INSIGNIA SE EDITION TURBO D (2021)
Running costs, reliability data, and common problems from 41 real MOT tests.
Annual Cost
£1,355
£113/month
MOT Pass Rate
98%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 12-25
1496cc Diesel
Great Choice
98% pass rate, £1355/year to run. 16 points above average.
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Annual Running Costs
~55 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.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 16 points above the national average of 82%. It also outperforms the VAUXHALL brand average of 84%.
At 5 years old, 98% of VAUXHALL INSIGNIA SE EDITION TURBO Ds from 2021 passed their MOT first time in 2026. That's based on 41 tests across the UK. The average mileage at this age is 38,980 miles.
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How Does It Compare?
Mileage Analysis
38,980
Average miles
37,000
Expected for age
The average 2021 VAUXHALL INSIGNIA SE EDITION TURBO D has 38,980 miles on the clock, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.
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About the 2021 VAUXHALL INSIGNIA SE EDITION TURBO D
The 2021 VAUXHALL INSIGNIA SE EDITION TURBO D is a small family car with a 1496cc diesel engine. 41 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 8% of all 2021 cars for reliability.
With an average of 38,980 miles at 5 years old, VAUXHALL INSIGNIA SE EDITION TURBO D owners drive about as much as the UK average.
2021 VAUXHALL INSIGNIA SE EDITION 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 £905 per year at current diesel prices of 148p per litre (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 2021 VAUXHALL INSIGNIA SE EDITION TURBO D?
Total estimated annual running cost is £1,355 (£113/month), broken down as £905 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 VAUXHALL INSIGNIA SE EDITION TURBO D
At 5 years old, the VAUXHALL INSIGNIA SE EDITION 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. Note: with only 41 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2021 VAUXHALL INSIGNIA SE EDITION TURBO D's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Medium riskDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Low riskExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
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 2021 VAUXHALL INSIGNIA SE EDITION TURBO D stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| VAUXHALL INSIGNIA SE EDITION TURBO D(2021) | 98% | £905 | £195 | Grp 12-25 | £1355 |
| FORD FOCUS(2019) | 89% | £905 | £190 | Grp 12-25 | £1500+£145 |
| MERCEDES A(2019) | 91% | £905 | £190 | Grp 12-25 | £1350-£5 |
| VOLKSWAGEN POLO(2019) | 89% | £905 | £190 | Grp 12-25 | £1500+£145 |
| KIA SPORTAGE(2019) | 89% | £905 | £190 | Grp 12-25 | £1500+£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 Vauxhall Models
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MERCEDES A
2019 · 1461cc Diesel
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2019 · 1598cc Diesel
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