2015 Jeep Wrangler 2.8L Diesel · SN65 LHE

The Jeep Wrangler’s roadworthiness record shows a concerning instability in its most recent MOT history, with a failure just days before a clean pass at the same mileage. The April 2026 test revealed multiple minor but critical electrical faults—four separate lighting issues, including the parking brake, rear fog lamp, position lamp, and registration plate lamp—all of which were absent from the preceding 11-month pass in May 2025. The fact that these defects were not present in earlier tests suggests either recent neglect or a sudden electrical system degradation, particularly in the rear lighting and parking brake circuits. While no structural or major mechanical defects have been recorded, the repeated failure on lighting and the parking brake—despite no prior mention of these issues—indicates either intermittent faults or a pattern of deferred maintenance that should not be ignored. Mileage accumulation has been steady and typical for the vehicle’s age, averaging around 8,935 miles per year over its 11-year lifespan. The most recent MOT gap of just two days between a fail and a pass is clearly an anomaly, likely due to immediate rectification rather than genuine usage. Prior intervals—10 months between the July 2024 and May 2025 tests, and 12 months between the July 2023 and July 2024 tests—align with expected service intervals for a lightly used off-road vehicle. There is no evidence of excessive mileage or rapid degradation, but the abrupt failure on lighting and parking brake components in April 2026 stands out as unusual for a vehicle with this history. For a prospective buyer, the most pressing areas to inspect are the rear parking brake mechanism and the entire lighting circuit, particularly the rear fog lamp, position lamp, and registration plate lamps. The parking brake failure suggests potential wear in the cable or actuator, which could indicate broader issues with the rear brake system if not addressed promptly. Additionally, the electrical faults—especially if they recur—may point to corrosion in connectors, wiring harness damage, or a failing body control module. Given the Jeep Wrangler’s susceptibility to corrosion in high-moisture environments, a thorough check of the underbody, suspension mounts, and brake components is advisable. The absence of any structural advisories or major mechanical defects in prior tests is positive, but the recent electrical failures demand closer scrutiny before purchase.