1997 Chrysler Jeep Wrangler — MOT failures & pass rate
537 MOT tests on the 1997 Chrysler Jeep Wrangler are in this dataset, and 75.0% of them passed. All cars of a similar age fail at 25.0%, so the 1997 Wrangler sits squarely on the average. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
Lighting & signalling dominates the failure mix at 18.3% of all tests — 6.3 points clear of suspension, so it is the first thing to check.
At component level the recurring items are headlamp aim, component mounting prescribed areas and catalyst emissions — headlamp aim alone was recorded 38 times.
Mileage is the strongest signal on the record: 16.3% of 30-60k cars fail, rising to 33.3% once past 150k — 2.0× the risk.
Advisories point at the next bill rather than this one: suspension was flagged on 32.4% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 18.3% | 98 |
| 2 | Suspension | 11.9% | 64 |
| 3 | Brakes | 9.5% | 51 |
| 4 | Body, structure & corrosion | 8.9% | 48 |
| 5 | Emissions & environmental | 4.8% | 26 |
| 6 | Visibility | 4.5% | 24 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 38 |
| 2 | Component mounting prescribed areas | 37 |
| 3 | Catalyst emissions | 33 |
| 4 | Chassis condition | 29 |
| 5 | Position lamp | 29 |
| 6 | Service brake performance | 28 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 32.4% | 174 |
| 2 | Brakes | 28.3% | 152 |
| 3 | Body, structure & corrosion | 18.1% | 97 |
| 4 | Lighting & signalling | 10.8% | 58 |
| 5 | Steering | 10.8% | 58 |
| 6 | Emissions & environmental | 9.7% | 52 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 43 | 16.3% |
| 60-90k | 161 | 23.0% |
| 90-120k | 186 | 26.3% |
| 120-150k | 73 | 26.0% |
| 150k+ | 60 | 33.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 111 | 23.4% |
| 2022 | 119 | 26.1% |
| 2023 | 111 | 27.0% |
| 2024 | 97 | 25.8% |
| 2025 | 99 | 22.2% |
What to check before buying a 1997 Wrangler
On a 1997 Wrangler, lighting & signalling is what the MOT record says goes wrong most — it appeared in 18.3% of tests. Check these areas before you commit.
- Lighting & signalling (18.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (11.9% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Brakes (9.5% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 1997 Chrysler Jeep Wranglers pass their MOT?
75.0% of the 537 1997 Chrysler Jeep Wrangler MOT tests in this dataset passed — a 24.9% fail rate.
What is the most common MOT failure on a 1997 Chrysler Jeep Wrangler?
Lighting & signalling, recorded in 18.3% of tests, followed by suspension (11.9%).
Does the 1997 Wrangler get worse with mileage?
Its MOT fail rate rises from 16.3% in the 30-60k band to 33.3% in the 150k+ band.
Methodology & source. Based on 537 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.