Porsche 924
From 1,588 MOT tests. Average for its class.
Common MOT failure categories
Pass rate by registration year
Older 924s fare better: 1988 models pass at 69.8% vs 76.6% for 1986.
What goes wrong?
The most common MOT failure reasons are windscreen washers not working or not providing sufficient fluid to clear the windscreen, emissions levels exceed default limits and significant brake effort recorded with no brake applied indicating a binding brake. The top issue, windscreen washers not working or not providing sufficient fluid to clear the windscreen, caused 85 failures in 2024. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 85 |
| emissions levels exceed default limits | 50 |
| significant brake effort recorded with no brake applied indicating a binding brake | 37 |
| the aim of a headlamp is not within limits laid down in the requirements | 33 |
| a headlamp or light source missing, inoperative or more than ½ not functioning in the case of led | 29 |
| audible warning inoperative | 25 |
| 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 | 24 |
| a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 22 |
| a rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources | 22 |
| 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 | 21 |
How serious are these failures?
Not all MOT failures are equal. Only 17.5% of 924 failures are serious (safety or roadside), below the 44.4% average. When this car fails its MOT, it's more likely to be lights, wipers, or emissions than something dangerous. When it does fail, the average repair bill is around £65.
Porsche 924 on UK roads
The fleet is shrinking: 13 scrapped or exported in the past year with only 1 newly registered, a net loss of 12. Now at 38.4% of its peak (7,072 in 1994 Q4).
Quarterly breakdown
| Quarter | On road | SORN | New | Gone | Net |
|---|---|---|---|---|---|
| 2025 Q3 | 939 | 1,774 | +1 | -0 | +8 |
| 2025 Q2 | 938 | 1,767 | +0 | -0 | +8 |
| 2025 Q1 | 857 | 1,840 | +0 | -6 | -6 |
| 2024 Q4 | 873 | 1,830 | +0 | -7 | -7 |
| 2024 Q3 | 928 | 1,782 | +0 | -16 | -16 |
| 2024 Q2 | 917 | 1,809 | +0 | -0 | +25 |
| 2024 Q1 | 823 | 1,878 | +1 | -34 | -33 |
| 2023 Q4 | 796 | 1,938 | +0 | -2 | -2 |
4 variants on the road
| Variant | Fuel | Licensed | Share |
|---|---|---|---|
| 924 | Petrol | 633 | 68% |
| 924 S | Petrol | 121 | 13% |
| 924 Turbo | Petrol | 120 | 13% |
| 924 Auto | Petrol | 58 | 6% |
Source: DfT vehicle licensing statistics, 2025 Q3. Crown copyright, OGL v3.0.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 1988 | 69.8% | significant brake effort recorded with no brake applied indicating a binding brake, windscreen washers not working or not providing sufficient fluid to clear the windscreen |
| 1987 | 82% | windscreen washers not working or not providing sufficient fluid to clear the windscreen, 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 |
| 1986 | 76.6% | windscreen washers not working or not providing sufficient fluid to clear the windscreen, a headlamp or light source missing, inoperative or more than ½ not functioning in the case of led |
| 1985 | 76.6% | emissions levels exceed default limits, windscreen washers not working or not providing sufficient fluid to clear the windscreen |
1 earlier years
| 1984 | 81% | a flexible brake hose excessively damaged, deteriorated, chafed, twisted or stretched, emissions levels exceed default limits |
Typical mileage
Half of all 924s tested had between 19,027 and 65,801 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 36,751 median miles, the 924 has 0.062 failures per 10,000 miles driven.
Other Porsche models
| Porsche 911 | 90.7% |
| Porsche Macan | 93.6% |
| Porsche Cayenne | 89.5% |
| Porsche Boxster | 86.8% |
| Porsche Cayman | 92.1% |
Common questions
What is the Porsche 924 MOT pass rate?
The Porsche 924 has a 77.1% MOT pass rate based on 1,588 real MOT tests. This is around the national average.
What are common MOT failures on a Porsche 924?
The most common MOT failure on the Porsche 924 is windscreen washers not working or not providing sufficient fluid to clear the windscreen, which caused 85 failures. Other common issues include emissions levels exceed default limits.
How many Porsche 924s are on UK roads?
There are 939 Porsche 924s currently licensed on UK roads, with 1,774 on SORN.
What is the typical mileage of a Porsche 924 at MOT?
The median mileage at MOT for a Porsche 924 is 36,751 miles. The middle 50% of vehicles tested have between 19,027 and 65,801 miles.
Buying a used 924?
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 77.1% pass rate and an average repair bill of £65 when things go wrong, budget accordingly.
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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.