Diesel Chrysler-Jeep Grand Cherokee: MOT pass rate
70.3% of diesel Chrysler-Jeep Grand Cherokees pass the MOT first time, measured across 1,237 DVSA tests on that fuel type alone. Average mileage at test was 123,191.
Diesel against the other Chrysler-Jeep Grand Cherokee versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 70.3% | 1,237 |
| Petrol | 71.5% | 467 |
| All Chrysler-Jeep Grand Cherokee | 70.4% | 1,754 |
Why the fuel type changes the number
Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.
On the Chrysler-Jeep Grand Cherokee specifically, petrol is the strongest at 71.5%, and this diesel version sits 0.1 points below the 70.4% model average.
What it means if you are buying one
There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel Chrysler-Jeep Grand Cherokee had covered 123,191 miles at test, against 109,318 for the petrol. That is high mileage, so timing belts, clutches, suspension bushes and corrosion are the items worth budgeting for rather than the MOT itself.
Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Chrysler-Jeep Grand Cherokee page separate age from fuel if you want to isolate one.
Most common MOT failures on a diesel Chrysler-Jeep Grand Cherokee
- Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 2% of tests (12.92x the national rate for this defect)
- An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning, 3.1% of tests (7.11x the national rate for this defect)
- Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 2.2% of tests (5.43x the national rate for this defect)
- 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, 4.2% of tests (4.5x the national rate for this defect)
- A suspension pin, bush or joint excessively worn, 14.8% of tests (2.95x the national rate for this defect)
- A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 2.8% of tests (2.95x the national rate for this defect)
- A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps, 2.6% of tests (2.87x the national rate for this defect)
- A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 5.3% of tests (2.37x the national rate for this defect)
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 3.5% of tests (2.09x the national rate for this defect)
- Parking brake efficiency below minimum requirement, 2.7% of tests (2.09x the national rate for this defect)
From 1,248 DVSA-tracked diesel Chrysler-Jeep Grand Cherokee tests, 2024, split out from the Chrysler-Jeep Grand Cherokee's other fuel types. DVSA testers marked 3.04% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.
Most common MOT advisories on a diesel Chrysler-Jeep Grand Cherokee
Flagged but doesn't fail the car, a different list from the failures above.
- A brake hose ferrule excessively corroded, 9.8% of tests (7.68x the national rate for this defect)
- Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 5.4% of tests (4.31x the national rate for this defect), also fails
- Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 22.8% of tests (4.11x the national rate for this defect), also fails
- A suspension pin, bush or joint excessively worn, 47.5% of tests (3.55x the national rate for this defect), also fails
- A spring or spring component fractured or seriously weakened, 14.6% of tests (3.09x the national rate for this defect)
- A steering ball joint with excessive wear or free play, 3.9% of tests (2.94x the national rate for this defect)
- 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, 3.7% of tests (2.43x the national rate for this defect), also fails
- A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 8.7% of tests (2.23x the national rate for this defect), also fails
- A suspension component excessively damaged or corroded, 9.3% of tests (1.8x the national rate for this defect)
- Brake pipe damaged or excessively corroded, 8.4% of tests (1.36x the national rate for this defect)
From 1,248 DVSA-tracked diesel Chrysler-Jeep Grand Cherokee tests, 2024.