Vauxhall Signum Reliability, MOT Pass Rate & Common Faults
Free Vauxhall Signum car check
Is the Vauxhall Signum reliable? We analysed 245,020 real MOT tests across 16,896 vehicles to find out.
Got a specific Vauxhall Signum? Enter the reg for a free check:
The Vauxhall Signum is about average for reliability based on real UK MOT data. Common problems include tyre tread depth below requirements of 1.6mm, coil spring broken and registration plate lamp not working. Here's everything you need to know before buying a used Vauxhall Signum.
Vauxhall Signum Number Plates
Number plates registered to a Vauxhall Signum. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Vauxhall Signum MOT Pass Rate by Year
How likely is a Vauxhall Signum to pass its MOT? Here's the pass rate for each registration year, newest first.
Vauxhall Signum Problems — What Goes Wrong?
The most common reasons a Vauxhall Signum fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Vauxhall Signum Mileage — What's Normal?
How many miles does a typical Vauxhall Signum owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Vauxhall Signum MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Vauxhall Signum year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2011 | 80 | 77.5% | 41,460 | 55,910 | 86,239 |
| 2008 | 1,463 | 71.4% | 57,379 | 88,242 | 118,848 |
| 2007 | 23,578 | 71.1% | 57,515 | 86,542 | 118,840 |
| 2006 | 52,788 | 70.8% | 56,827 | 85,243 | 116,100 |
| 2005 | 51,829 | 69.2% | 56,262 | 83,689 | 114,355 |
| 2004 | 76,301 | 68.2% | 54,878 | 81,123 | 110,563 |
| 2003 | 38,805 | 68.0% | 55,282 | 81,014 | 110,018 |
How Long Does a Vauxhall Signum Last?
Based on 16,896 Vauxhall Signum vehicles on UK roads.
Vauxhall Signum Mileage Distribution
Total mileage recorded across all Vauxhall Signum MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Vauxhall Signum
Based on MOT pass rates across all registration years with sufficient test data.
77.5% MOT pass rate from 80 tests
68.0% MOT pass rate from 38,805 tests
The best year to buy a used Vauxhall Signum is 2011, which has the highest MOT pass rate at 77.5% across 80 tests. The 2003 model year has the lowest pass rate at 68.0% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Vauxhall Signum Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Vauxhall Signum THIS CAR | 69.2% | 245,020 | 83,030 mi | 23 yrs |
| Vauxhall Corsa | 69.7% | 26,893,546 | 58,908 mi | 33 yrs |
| Vauxhall Astra | 71.9% | 25,288,868 | 76,280 mi | 34 yrs |
| Vauxhall Zafira | 71.9% | 8,488,627 | 75,062 mi | 27 yrs |
| Daewoo Lanos | 67.4% | 343,953 | 59,771 mi | 29 yrs |
Compared to the Vauxhall Corsa (69.7% pass rate) and the Vauxhall Astra (71.9% pass rate), the Vauxhall Signum trails behind on MOT reliability.
Found a Vauxhall Signum you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Vauxhall SignumShould you buy a used Vauxhall Signum?
The Vauxhall Signum has an overall MOT pass rate of 69.2% across 245,020 real MOT tests — roughly in line with the UK average.
The most common problems on the Vauxhall Signum are tyre tread depth below requirements of 1.6mm (12,416 recorded failures), coil spring broken (10,006), and registration plate lamp not working (7,975). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Vauxhall Signum owner drives around 8,076 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Vauxhall Signum models stay on UK roads for around 23 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.