How reliable is the Chrysler 300 C compared with other cars?

We do not publish a comparison for the Chrysler 300 C, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 67.2% across 890 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What is the most common MOT failure on a Chrysler 300 C?

The item recorded most often is "Parking brake efficiency below minimum requirement", which appears in 21.3% of failed Chrysler 300 C tests. Because one failed test can list several items, these shares do not add up to 100%.

What do testers most often warn about on a Chrysler 300 C?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 21.8% of all Chrysler 300 C tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Chrysler 300 C usually have at its MOT?

The average odometer reading recorded at test is 110,438 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Are most Chrysler 300 C models petrol or diesel?

Of the Chrysler 300 C cars tested, 75% are diesel, 25% are petrol. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

Model reliability file

Chrysler 300 C MOT pass rate & common failures

From 890 recorded MOT tests of the Chrysler 300 C, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 890 MOT tests, 67.2% of Chrysler 300 C tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Chrysler 300 C fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is parking brake efficiency below minimum requirement, which appears in 21.3% of failed tests. Cars of this model average 110,438 miles on the odometer when tested.

At a glance

Recorded pass rate

67.2%unadjusted, not comparable890 tests

We are not publishing a ranking for the 300 C. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 890 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

Share of failed Chrysler 300 C tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.Parking brake efficiency below minimum requirement21.3%
54 occurrencesParking brake efficiency too low explained
2.Parking brake efficiency less than 50% of the required value18.2%
46 occurrencesParking brake efficiency too low explained
3.A suspension pin, bush or joint excessively worn17.4%
44 occurrencesSuspension arm bush worn explained
4.A suspension pin, bush or joint excessively worn14.2%
36 occurrencesSuspension arm bush worn explained
5.Parking brake inoperative on one side13.0%
33 occurrencesParking brake efficiency too low explained
6.A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning12.6%
32 occurrencesLamp not working explained
7.A steering ball joint with excessive wear or free play12.3%
31 occurrencesBall joint worn explained
8.Tyre tread depth not in accordance with the requirements9.9%
25 occurrencesTyre worn close to the legal limit explained
9.Warning device shows system malfunction9.5%
24 occurrencesBrake system warning lamp on, or not working explained
10.A tyre cords visible or damaged8.3%
21 occurrencesTyre ply or cord exposed, or the casing separating explained

Warnings without a failure

Most common advisories

Share of all Chrysler 300 C tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.Tyre tread depth not in accordance with the requirements21.8%
194 testsTyre worn close to the legal limit explained
2.Brake pipe damaged or excessively corroded20.3%
181 testsBrake pipe corroded explained
3.Brake disc or drum excessively weakened, insecure or fractured18.7%
166 testsBrake disc worn, pitted or scored explained
4.A suspension pin, bush or joint excessively worn15.7%
140 testsSuspension arm bush worn explained
5.Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users13.0%
116 tests
6.A tyre seriously damaged9.0%
80 testsTyre damaged or deteriorated explained
7.A steering ball joint with excessive wear or free play8.9%
79 testsBall joint worn explained
8.A brake lining or pad worn below 1.5mm7.9%
70 testsBrake drum or shoe worn or contaminated explained

What gets tested

The 300 C fleet

Average mileage recorded at test: 110,438
Fuel mix of tested cars: Diesel74.6%
Petrol25.2%

Check a specific Chrysler 300 C

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Chrysler models

Chrysler Ypsilon — 60.8% unadjusted
Chrysler Grand Voyager — 59.2% unadjusted
Chrysler Crossfire — 69.5% unadjusted
Chrysler PT Cruiser — 55.3% unadjusted
Chrysler Voyager — 51.2% unadjusted
Chrysler 300 — 68.4% unadjusted
All Chrysler models

Common questions

How reliable is the Chrysler 300 C compared with other cars?: We do not publish a comparison for the Chrysler 300 C, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 67.2% across 890 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a Chrysler 300 C?: The item recorded most often is "Parking brake efficiency below minimum requirement", which appears in 21.3% of failed Chrysler 300 C tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Chrysler 300 C?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 21.8% of all Chrysler 300 C tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Chrysler 300 C usually have at its MOT?: The average odometer reading recorded at test is 110,438 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.
Are most Chrysler 300 C models petrol or diesel?: Of the Chrysler 300 C cars tested, 75% are diesel, 25% are petrol. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.