Jeep Wrangler Sahara MOT pass rate & common failures
Across 23 model years and 3,257 tests, the Jeep Wrangler Sahara passes its MOT 75.0% of the time. Against all cars of a similar age (26.2% fail rate), the Wrangler Sahara comes out 1.3pp better. Its most common failure areas are lighting & signalling, brakes and suspension.
What the MOT record shows
Lighting & signalling dominates the failure mix at 17.5% of all tests — 4.9 points clear of brakes, so it is the first thing to check.
At component level the recurring items are headlamp aim, position lamp and service brake performance — headlamp aim alone was recorded 207 times.
A 150k+ example is materially riskier than a 0-30k one: 27.8% versus 13.0%.
Fuel type barely separates them — petrol fails 24.7% of the time against 26.1% for diesel.
Advisories point at the next bill rather than this one: suspension was flagged on 30.9% of tests without failing them.
How it compares
By model year
Every Wrangler Sahara model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 1995 | 165 | 76.4% | 23.6% | Lighting & signalling |
| 1996 | 45 | 80.0% | 20.0% | Lighting & signalling |
| 1997 | 295 | 77.0% | 23.1% | Lighting & signalling |
| 1998 | 278 | 74.1% | 25.9% | Lighting & signalling |
| 1999 | 424 | 71.2% | 28.8% | Lighting & signalling |
| 2000 | 395 | 75.7% | 24.3% | Lighting & signalling |
| 2001 | 287 | 75.6% | 24.4% | Lighting & signalling |
| 2002 | 249 | 71.5% | 28.5% | Lighting & signalling |
| 2003 | 169 | 75.1% | 24.9% | Lighting & signalling |
| 2004 | 126 | 79.4% | 20.6% | Lighting & signalling |
| 2005 | 43 | 81.4% | 18.6% | Lighting & signalling |
| 2006 | 34 | 85.3% | 14.7% | Lighting & signalling |
| 2007 | 321 | 76.0% | 24.0% | Lighting & signalling |
| 2008 | 253 | 75.5% | 24.5% | Lighting & signalling |
| 2009 | 118 | 70.3% | 29.7% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 17.5% | 569 |
| 2 | Brakes | 12.6% | 410 |
| 3 | Suspension | 8.5% | 278 |
| 4 | Body, structure & corrosion | 4.9% | 161 |
| 5 | Visibility | 4.4% | 142 |
| 6 | Emissions & environmental | 2.9% | 94 |
| 7 | Steering | 2.4% | 77 |
| 8 | Seat belts & restraints | 2.2% | 71 |
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 | 207 |
| 2 | Position lamp | 196 |
| 3 | Service brake performance | 174 |
| 4 | Rear fog lamp | 128 |
| 5 | Stop lamp | 122 |
| 6 | Service brake imbalance | 121 |
| 7 | Wipers | 114 |
| 8 | Rigid brake pipes | 105 |
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 | 30.9% | 1,008 |
| 2 | Brakes | 26.4% | 860 |
| 3 | Emissions & environmental | 11.5% | 375 |
| 4 | Body, structure & corrosion | 11.5% | 375 |
| 5 | Tyres | 11.1% | 360 |
| 6 | Lighting & signalling | 10.0% | 326 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 92 | 13.0% |
| 30-60k | 618 | 21.0% |
| 60-90k | 1,154 | 23.7% |
| 90-120k | 892 | 27.2% |
| 120-150k | 383 | 32.1% |
| 150k+ | 115 | 27.8% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 2,555 | 24.7% |
| Diesel | 702 | 26.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 709 | 25.5% |
| 2022 | 663 | 21.9% |
| 2023 | 648 | 25.6% |
| 2024 | 616 | 27.1% |
| 2025 | 621 | 25.0% |
What to check before buying a Jeep Wrangler Sahara
- Lighting & signalling (17.5% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (12.6% 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
What is the MOT pass rate for the Jeep Wrangler Sahara?
75.0% of the 3,257 Jeep Wrangler Sahara MOT tests in this dataset passed, a 25.0% fail rate, across model years 1995–2017.
What does the Jeep Wrangler Sahara most often fail its MOT on?
Lighting & signalling, recorded in 17.5% of tests, then brakes (12.6%).
How much does mileage affect Wrangler Sahara MOT results?
Fail rates run at 13.0% for cars in the 0-30k band and 27.8% for 150k+, a 14.8-point difference.
Is the petrol or diesel Wrangler Sahara more reliable at MOT time?
On MOT-testable defects the petrol fails 24.7% of the time against 26.1% for the diesel. This covers testable items only, not engine or gearbox reliability.
Methodology & source. Based on 3,257 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.