Vauxhall Monaro
From 728 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
What goes wrong?
The most common MOT failure reasons are brake pipe damaged or excessively corroded, leaking brake pipe or connection on a hydraulic system and a spring or spring component fractured or seriously weakened. The top issue, brake pipe damaged or excessively corroded, caused 12 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| brake pipe damaged or excessively corroded | 12 |
| leaking brake pipe or connection on a hydraulic system | 11 |
| a spring or spring component fractured or seriously weakened | 9 |
| a steering ball joint with excessive wear or free play | 8 |
| a brake hose ferrule excessively corroded | 8 |
| tyre tread depth not in accordance with the requirements | 8 |
| a suspension joint dust cover missing or no longer prevents the ingress of dirt etc | 8 |
| the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired | 7 |
| an obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning | 7 |
| parking brake inoperative on one side | 7 |
How serious are these failures?
Not all MOT failures are equal. 27.1% of Monaro failures could actually strand you: fractured springs, engine faults, exhaust problems. Another 23.5% are safety issues where the car still drives but shouldn't, such as worn brakes, corroded brake pipes, and steering wear. Breakdown cover may be worth considering for this model. When it does fail, the average repair bill is around £140.
Vauxhall Monaro on UK roads
The fleet is shrinking: 10 scrapped or exported in the past year, a net loss of 10. Now at 82.9% of its peak (727 in 2009 Q2).
Quarterly breakdown
| Quarter | On road | SORN | New | Gone | Net |
|---|---|---|---|---|---|
| 2025 Q3 | 343 | 260 | +0 | -7 | -7 |
| 2025 Q2 | 341 | 269 | +0 | -0 | +5 |
| 2025 Q1 | 290 | 315 | +0 | -0 | +1 |
| 2024 Q4 | 280 | 324 | +0 | -3 | -3 |
| 2024 Q3 | 345 | 262 | +0 | -0 | +11 |
| 2024 Q2 | 354 | 242 | +0 | -0 | +29 |
| 2024 Q1 | 306 | 261 | +0 | -48 | -48 |
| 2023 Q4 | 300 | 315 | +0 | -2 | -2 |
2 variants on the road
| Variant | Fuel | Licensed | Share |
|---|---|---|---|
| Monaro V8 | Gas | 181 | 53% |
| Monaro V8 Vxr | Petrol | 162 | 47% |
Source: DfT vehicle licensing statistics, 2025 Q3. Crown copyright, OGL v3.0.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2006 | 90.7% | brake pipe is at imminent risk of failure or fracture, steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc |
| 2005 | 81.7% | vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, a brake hose ferrule excessively corroded |
| 2004 | 79.9% | brake pipe damaged or excessively corroded, tyre tread depth not in accordance with the requirements |
Typical mileage
Half of all Monaros tested had between 62,659 and 102,046 miles on the clock. A significant number are high-mileage vehicles.
At 78,710 median miles, the Monaro has 0.021 failures per 10,000 miles driven.
Other Vauxhall models
| Vauxhall Corsa | 70.9% |
| Vauxhall Astra | 72.5% |
| Vauxhall Vivaro | 67.2% |
| Vauxhall Mokka | 76.7% |
| Vauxhall Insignia | 75.3% |
Common questions
What is the Vauxhall Monaro MOT pass rate?
The Vauxhall Monaro has a 83.5% MOT pass rate based on 728 real MOT tests. This is above the national average.
What are common MOT failures on a Vauxhall Monaro?
The most common MOT failure on the Vauxhall Monaro is brake pipe damaged or excessively corroded, which caused 12 failures. Other common issues include leaking brake pipe or connection on a hydraulic system.
How many Vauxhall Monaros are on UK roads?
There are 343 Vauxhall Monaros currently licensed on UK roads, with 260 on SORN.
What is the typical mileage of a Vauxhall Monaro at MOT?
The median mileage at MOT for a Vauxhall Monaro is 78,710 miles. The middle 50% of vehicles tested have between 62,659 and 102,046 miles.
Buying a used Monaro?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
With a 83.5% pass rate and an average repair bill of £140 when things go wrong, budget accordingly. 27.1% of failures on this model could actually strand you, so breakdown cover may be worth considering.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.