Diesel Jeep Grand Cherokee: MOT pass rate

82.8% of diesel Jeep Grand Cherokees pass the MOT first time, measured across 5,811 DVSA tests on that fuel type alone. Average mileage at test was 76,580.

Diesel against the other Jeep Grand Cherokee versions

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 Jeep Grand Cherokee specifically, petrol is the strongest at 85.3%, and this diesel version sits 0.2 points below the 83% 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 Jeep Grand Cherokee had covered 76,580 miles at test, against 63,121 for the petrol. That is a shade above the middle of the range, still ordinary wear rather than a red flag, but worth checking against the service book for the car's age.

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 Jeep Grand Cherokee page separate age from fuel if you want to isolate one.

Most common MOT failures on a diesel Jeep Grand Cherokee

1. Parking brake efficiency less than 50% of the required value, 1.7% of tests (4.64x the national rate for this defect)
2. Parking brake efficiency below minimum requirement, 2.4% of tests (1.82x the national rate for this defect)
3. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 2% of tests (1.67x the national rate for this defect)
4. Parking brake inoperative on one side, 1% of tests (1.67x the national rate for this defect)
5. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 1.2% of tests (1.57x the national rate for this defect)
6. Brake disc or drum significantly and obviously worn, 0.9% of tests (1.19x the national rate for this defect)
7. Tyre tread depth not in accordance with the requirements, 2.5% of tests
8. a brake lining or pad worn below 1.5mm, 2.1% of tests
9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 1.4% of tests
10. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 1.4% of tests

From 5,820 DVSA-tracked diesel Jeep Grand Cherokee tests, 2024, split out from the Jeep Grand Cherokee's other fuel types. DVSA testers marked 6.17% 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 Jeep Grand Cherokee

Flagged but doesn't fail the car, a different list from the failures above.

1. Power steering fluid leaking or system malfunctioning, 0.8% of tests (3.49x the national rate for this defect)
2. Brake disc or drum excessively weakened, insecure or fractured, 18.7% of tests (1.53x the national rate for this defect)
3. a brake lining or pad worn below 1.5mm, 12% of tests (1.28x the national rate for this defect), also fails
4. Brake disc or drum significantly and obviously worn, 3.9% of tests (1.23x the national rate for this defect), also fails
5. Tyre tread depth not in accordance with the requirements, 27.2% of tests, also fails
6. A tyre seriously damaged, 6.5% of tests
7. A suspension pin, bush or joint excessively worn, 3.7% of tests
8. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 2.2% of tests
9. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1.9% of tests
10. Number plate inscription missing or illegible, 1.3% of tests

From 5,820 DVSA-tracked diesel Jeep Grand Cherokee tests, 2024.

Other Jeep Grand Cherokee fuel types

• Petrol Jeep Grand Cherokee - 85.3%

All Jeep Grand Cherokee MOT data · Every model