Chrysler-Jeep 300: MOT pass rate and reliability data

The Chrysler-Jeep 300 fails its first MOT more often than the average UK car, by 7.6 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 3,411 individual Chrysler-Jeep 300 tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate69.1%
UK national average76.7%
Difference-7.6 points
Tests analysed3,411
Average mileage at test112,979 miles
Average year of manufacture2008
Reliability rank1,782 of 2,005 models

What this means if you are buying one

A 69.1% first-time pass rate means roughly 31 in every 100 Chrysler-Jeep 300s presented for MOT fail on the first attempt. That is worse than average, so budget for remedial work and treat a fresh 12-month MOT as a genuine selling point rather than a given. The average Chrysler-Jeep 300 tested had covered 112,979 miles and was built around 2008.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Chrysler-Jeep 300 sits 7.6 points below the national average, ranked 1,782 of 2,005 models. On one bought as repairable salvage, assume the mechanical side needs more than the visible accident damage, and pad your repair estimate accordingly.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Chrysler-Jeep 300 rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see recorded closing bids for damaged Chrysler-Jeep 300s at UK salvage auction.

Most common MOT failures on a Chrysler-Jeep 300

  1. Parking brake efficiency less than 50% of the required value, 6.4% of tests (17.49x the national rate for this defect)
  2. ESC MIL indicates a system malfunction, 2.2% of tests (11.1x the national rate for this defect)
  3. Warning device shows system malfunction, 4.1% of tests (9.93x the national rate for this defect)
  4. Parking brake inoperative on one side, 5.2% of tests (8.66x the national rate for this defect)
  5. Parking brake efficiency below minimum requirement, 6.9% of tests (5.28x the national rate for this defect)
  6. A steering ball joint with excessive wear or free play, 6.6% of tests (5.09x the national rate for this defect)
  7. A suspension pin, bush or joint excessively worn, 16% of tests (3.19x the national rate for this defect)
  8. Brake pipe damaged or excessively corroded, 2.9% of tests (2.67x the national rate for this defect)
  9. Significant brake effort recorded with no brake applied indicating a binding brake, 2.6% of tests (2.47x the national rate for this defect)
  10. A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 5.2% of tests (2.32x the national rate for this defect)

From 3,431 DVSA-tracked Chrysler-Jeep 300 tests, 2024. DVSA testers marked 4.76% of these flagged Chrysler-Jeep 300 defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a Chrysler-Jeep 300

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Chrysler-Jeep 300 before it actually fails on it.

  1. A wheel bearing with excessive play, 3.8% of tests (5.88x the national rate for this advisory)
  2. A steering ball joint with excessive wear or free play, 5.5% of tests (4.15x the national rate for this advisory), also fails
  3. Brake pipe damaged or excessively corroded, 20.3% of tests (3.28x the national rate for this advisory), also fails
  4. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 16.2% of tests (2.91x the national rate for this advisory)
  5. A brake hose ferrule excessively corroded, 3.6% of tests (2.82x the national rate for this advisory)
  6. A suspension component excessively damaged or corroded, 13.9% of tests (2.68x the national rate for this advisory)
  7. A suspension pin, bush or joint excessively worn, 35.2% of tests (2.63x the national rate for this advisory), also fails
  8. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 2.8% of tests (2.27x the national rate for this advisory)
  9. Significant brake effort recorded with no brake applied indicating a binding brake, 3.5% of tests (1.75x the national rate for this advisory), also fails
  10. Brake disc or drum excessively weakened, insecure or fractured, 19.4% of tests (1.58x the national rate for this advisory)

From 3,431 DVSA-tracked Chrysler-Jeep 300 tests, 2024.

Chrysler-Jeep 300 pass rate by model year

From its 2006 to its 2010 model year, the Chrysler-Jeep 300's first-time pass rate has fallen 1.6 points, from 68.8% to 67.2%, an unusual pattern where even its newest years fail more than its oldest. First-time pass rate for each Chrysler-Jeep 300 year:

Chrysler-Jeep 300 by fuel type

The Chrysler-Jeep 300's two most-tested fuel types split by 4.5 points: diesel passes first time 69.4% of the time (2,932 tests) against 73.9% for petrol (425 tests).

Other Chrysler-Jeep models

Models with a similar pass rate

If this car is a salvage or write-off

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Chrysler-Jeep 300 MOT pass rate badge: 69.1%

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Chrysler-Jeep 300 most common MOT failure: Parking brake efficiency less than 50% of the required value (6.4% of tests)

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All 2,005 models ranked by MOT pass rate