VAUXHALL INSIG (2015)
Running costs, reliability data, and common problems from 100 real MOT tests.
Annual Cost
£1,707
£142/month
MOT Pass Rate
81%
Good
Road Tax
£265
Based on CC/year
Insurance
Grp 18-32
1956cc Diesel
Solid Option
81% pass rate, £1707/year to run. Close to the national average.
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Annual Running Costs
~48 mpg
Based on 1956cc
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%.
At 11 years old, 81% of VAUXHALL INSIGs from 2015 passed their MOT first time in 2026. That's based on 100 tests across the UK. The average mileage at this age is 96,109 miles.
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Mileage Analysis
96,109
Average miles
81,400
Expected for age
The average 2015 VAUXHALL INSIG has 96,109 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.
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About the 2015 VAUXHALL INSIG
The 2015 VAUXHALL INSIG is a family car with a 1956cc diesel engine. 100 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model falls short of that benchmark.
With an average of 96,109 miles at 11 years old, VAUXHALL INSIG owners drive about as much as the UK average.
2015 VAUXHALL INSIG Fuel Costs
The 1956cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 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 2015 VAUXHALL INSIG?
Total estimated annual running cost is £1,707 (£142/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2015 VAUXHALL INSIG
At 11 years old, the VAUXHALL INSIG is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age.
Common Issues to Watch For
Based on the 2015 VAUXHALL INSIG'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
Watch outDiesel 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
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Clutch Wear
Medium riskWith an average of 96k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
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 2015 VAUXHALL INSIG stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| VAUXHALL INSIG(2015) | 81% | £1037 | £265 | Grp 18-32 | £1707 |
| VOLKSWAGEN GOLF(2017) | 91% | £905 | £190 | Grp 12-25 | £1350-£357 |
| VAUXHALL ASTRA(2013) | 79% | £1037 | £135 | Grp 18-32 | £1727+£20 |
| MERCEDES A-CLASS(2017) | 88% | £905 | £190 | Grp 12-25 | £1500-£207 |
| AUDI A3(2015) | 88% | £905 | £135 | Grp 12-25 | £1445-£262 |
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
Explore other Vauxhall cars or similar models in the same category.
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VAUXHALL ASTRA
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VAUXHALL MOKKA
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VOLKSWAGEN GOLF
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VAUXHALL ASTRA
2013 · 1700cc Diesel
MERCEDES A-CLASS
2017 · 1461cc Diesel
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