2009 Jeep Wrangler Sahara Unlimited — MOT failures & pass rate
The 2009 Jeep Wrangler Sahara Unlimited passed 72.2% of its 281 recorded MOT tests. All cars of a similar age fail 25.4% of the time, so this is 2.4pp worse than the group it competes with. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 23.1% of tests against 16.4% for the next-worst category.
At component level the recurring items are side repeaters, headlamp aim and rear fog lamp — side repeaters alone was recorded 24 times.
Condition tracks the odometer closely. Failures run at 22.5% in the 60-90k band and 32.8% in the 120-150k band, a 10.3-point spread.
Brakes is the most common advisory, noted on 26.3% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 31.8% in 2021 to 21.3% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 23.1% | 65 |
| 2 | Brakes | 16.4% | 46 |
| 3 | Suspension | 8.5% | 24 |
| 4 | Steering | 3.9% | 11 |
| 5 | Visibility | 2.9% | 8 |
| 6 | Body, structure & corrosion | 2.1% | 6 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Side repeaters | 24 |
| 2 | Headlamp aim | 20 |
| 3 | Rear fog lamp | 18 |
| 4 | Rbt (sp) | 17 |
| 5 | Registration plate lamp(s) | 15 |
| 6 | Headlamp | 15 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 26.3% | 74 |
| 2 | Suspension | 21.3% | 60 |
| 3 | Tyres | 13.5% | 38 |
| 4 | Steering | 13.2% | 37 |
| 5 | Body, structure & corrosion | 8.9% | 25 |
| 6 | Lighting & signalling | 8.9% | 25 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 60-90k | 80 | 22.5% |
| 90-120k | 111 | 31.5% |
| 120-150k | 61 | 32.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 63 | 31.8% |
| 2022 | 60 | 28.3% |
| 2023 | 54 | 27.8% |
| 2024 | 57 | 28.1% |
| 2025 | 47 | 21.3% |
What to check before buying a 2009 Wrangler Sahara Unlimited
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 23.1% of tests. Start there.
- Lighting & signalling (23.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (16.4% 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.
- Suspension (8.5% 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.
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 2009 Jeep Wrangler Sahara Unlimiteds pass their MOT?
72.2% of the 281 2009 Jeep Wrangler Sahara Unlimited MOT tests in this dataset passed — a 27.8% fail rate.
What is the most common MOT failure on a 2009 Jeep Wrangler Sahara Unlimited?
Lighting & signalling, recorded in 23.1% of tests, followed by brakes (16.4%).
Does the 2009 Wrangler Sahara Unlimited get worse with mileage?
Its MOT fail rate rises from 22.5% in the 60-90k band to 32.8% in the 120-150k band.
Methodology & source. Based on 281 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.