Jeep Wrangler 4.0
From 423 MOT tests. Average for its class.
Common MOT failure categories
Pass rate by registration year
What goes wrong?
The most common MOT failure reasons are a suspension pin, bush or joint excessively worn, the aim of a headlamp is not within limits laid down in the requirements, body and cab or chassis excessively corroded at a mounting point. The top issue, a suspension pin, bush or joint excessively worn, caused 18 failures in 2024. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| a suspension pin, bush or joint excessively worn | 18 |
| the aim of a headlamp is not within limits laid down in the requirements | 17 |
| body, cab or chassis excessively corroded at a mounting point | 16 |
| vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced | 13 |
| a suspension component excessively damaged or corroded | 11 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 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 | 8 |
| steering rack gaiter or ball joint dust cover damaged or deteriorated | 8 |
| exhaust system leaking or insecure | 7 |
| the strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired | 7 |
How serious are these failures?
Not all MOT failures are equal. 31% of Wrangler 4.0 failures could actually strand you: fractured springs, engine faults, exhaust problems. Another 15.9% 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 £150.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 1998 | 81.2% | a suspension pin, bush or joint excessively worn, 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 |
| 1997 | 78.9% | vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, a suspension component excessively damaged or corroded |
Typical mileage
Half of all Wrangler 4.0s tested had between 69,521 and 116,231 miles on the clock. A significant number are high-mileage vehicles.
At 89,998 median miles, the Wrangler 4.0 has 0.025 failures per 10,000 miles driven.
Other Jeep models
| Jeep Renegade | 79.4% |
| Jeep Compass | 83.6% |
| Jeep Grand Cherokee | 85.5% |
| Jeep Cherokee | 80.1% |
| Jeep Wrangler | 84.9% |
Common questions
What is the Jeep Wrangler 4.0 MOT pass rate?
The Jeep Wrangler 4.0 has a 77.5% MOT pass rate based on 423 real MOT tests. This is around the national average.
What are common MOT failures on a Jeep Wrangler 4.0?
The most common MOT failure on the Jeep Wrangler 4.0 is a suspension pin, bush or joint excessively worn, which caused 18 failures. Other common issues include the aim of a headlamp is not within limits laid down in the requirements.
What is the typical mileage of a Jeep Wrangler 4.0 at MOT?
The median mileage at MOT for a Jeep Wrangler 4.0 is 89,998 miles. The middle 50% of vehicles tested have between 69,521 and 116,231 miles.
Buying a used Wrangler 4.0?
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 77.5% pass rate and an average repair bill of £150 when things go wrong, budget accordingly. 31% 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.