Vauxhall Insignia (2015)
2015 Vauxhall Insignia
CarHunch analysed 31,548 real MOT records for the 2015 Vauxhall Insignia. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2015 Insignia passes its MOT at 80.4%, matching the UK average almost exactly, but nearly half of these cars—47.2%—have recorded a dangerous defect at some point, which is a significant concern for safety-conscious buyers. Petrol models perform notably better with an 84.4% pass rate versus 80.2% for the diesel majority, suggesting the diesel engines are more prone to issues.
At 74,691 miles median mileage, these nine-year-old cars are running close to typical for their age, yet they average 2.03 failures and 11.3 advisories per test, pointing to wear accumulation in suspension, brakes, and ancillary systems. Before committing to an Insignia of this generation, obtain its full MOT history and have a pre-purchase inspection focus on brake and steering components, where defects cluster most heavily.
Petrol vs Diesel
Pass rate difference of 4.2 percentage points — worth knowing if you're choosing between the two.
What to check before buying a 2015 Vauxhall Insignia
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- ⚠️ 47.3% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Vauxhall Insignia
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (93%) | 29,426 | 80.2% | 2.06 |
| Petrol (7%) | 2,120 | 84.4% | 1.6 |
| LPG (0%) | 2 | 77% | 3.5 |
Mileage Distribution
Most 2015 Vauxhall Insignia vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2015 Vauxhall Insignia vehicles fall between 57,361 and 95,562 miles.
2015 Vauxhall Insignia — Still on the Road
Strong survival — 26,174 vehicles still getting MOTs in 2025, 87% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
MOT History Averages
Most Common MOT Issues — 2015 Vauxhall Insignia
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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66.8%
Offside Front Tyre worn close to legal limit/worn on edge
-
66.5%
Nearside Front Tyre worn close to legal limit/worn on edge
-
39.2%
Offside Rear Tyre worn close to legal limit/worn on edge
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39.1%
Nearside Rear Tyre worn close to legal limit/worn on edge
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31.3%
Oil leak, but not excessive
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31.2%
Rear Brake pad(s) wearing thin
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30.4%
Offside Rear Coil spring fractured or broken
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27.8%
Front Brake pad(s) wearing thin
Data covers a 3-year window centred on 2015. Counts include advisories and failures.
Found a specific Vauxhall Insignia?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.