Model Reports 3 min read Updated 18 Oct 2026

Peugeot RCZ 2015: reliability & common MOT faults

In 2025, 70 in every 100 first MOTs on a 2015 Peugeot RCZ were passes.

Summary

The 2015 Peugeot RCZ follows the pattern of the model years either side.

At a glance

How 1,025 first tests went in 2025.

Passed first time
70 in every 100
Did not pass first time
30 in every 100309 failed first-attempt tests
The typical car
10 yearsabout 54,029 miles
First tests counted
1,025

How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.

Note:

These are patterns across 2015 Peugeot RCZ vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. A wear pattern follows age and use more than the way the car was built. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.

Body and structure

One fault: drive shaft joints and boots (front), 4.5 times as often as on similar cars.

Figures below are measured across the 309 failed first attempts in 2025 that had a mileage recorded, which allows a like-for-like comparison.

We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.

Drive shaft joints and boots (front)

Failed on 44 first tests4.5 times as often as similar carsLikely evidence

What it means

A constant velocity boot that is only severely deteriorated is Minor. It is Major once it is missing, split or insecure so that it no longer prevents the ingress of dirt. A transmission joint excessively worn is Major, and graded Dangerous when it is so worn it is likely to fail.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Lamps and electrical

One fault and one wear pattern. The strongest is the brake light (rear): 2.3 times as often as on similar cars.

Brake light (rear)

Failed on 21 first tests2.3 times as often as similar carsPossible evidence

What it means

All stop lamps missing or not working is graded Dangerous, and so is a stop lamp that stays on when the brakes are released. A stop lamp that is missing or not working is Major. On some vehicles with LED rear lamps, part of the stop lamp can go out when the rear fog lamp is lit, which is not regarded as a defect.

Headlight aim (front)

Failed on 30 first tests2.0 times as often as similar carsWear pattern

What it means

Beam aim too high, too low or off to either side is Major. Where a driver's beam aim control is fitted, the aim is tested without altering the setting, and rechecked at the highest setting only if it would fail for being too low. Masks or converter kits on right hand dip headlamps are acceptable.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

MOT pass rates

How first tests ended, and how the pass rates are counted.

Passed first time
70in every 100
Passed on the first test.
Fixed at the station
6in every 100
Failed, then fixed at the test station the same day.
Failed
24in every 100
Did not pass, and were not fixed at the test station.

First-attempt pass 69.9% of 1,025 first tests (2025): only cars that passed first time count. Official-style pass 76.3%: cars fixed at the test station also count as a pass. The 6 fixed and the 24 not fixed make the 30 in every 100 that did not pass first time.

Petrol and diesel

First testsPassed first time, as tested
Petrol66672
Diesel35965

Figures are in every 100 first tests.

Same model, other years

Passed first time in every 100, all tested in 2025.

406080100201020112012201320142015Older cars
406080100201020112012201320142015Older cars

Newer cars are younger, so look for a jump rather than the climb. A year earlier (2024), when these cars were a year younger, 73 in every 100 passed first time.

YearPassed first timeFirst tests
201054 in every 1001,277
201161 in every 1002,116
201261 in every 1001,762
201363 in every 1001,906
201467 in every 1001,475
2015 This car70 in every 1001,025

FAQs

Short answers about how to read this model-year guide.

The 2015 Peugeot RCZ follows the pattern of the model years either side. In 2025, 69.9% of 1,025 first MOTs on the 2015 Peugeot RCZ passed first time (PRS: items fixed at the station the same day, counted as a fail). The official-style rate including PRS is 76.3%. Among 309 failed first-attempt MOT tests (test year 2025), Drive shaft joints and boots (front) appears more often than on similar cars (14.2% of those tests; 44 observed failures; about 4.5× more often than similar cars). There is no single reliability score here; this is a pre-purchase checklist built from DVSA open data, not a guarantee for any individual car.
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: Drive shaft joints and boots (front) (14.2% of those tests; 44 observed failures; about 4.5× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Drive shaft joints and boots (front) shows up more often than on similar cars (14.2% of those tests; 44 observed failures; about 4.5× more often than similar cars). That does not prove a design fault. Age, mileage, and how the car was used still matter. Treat it as a pre-purchase checkpoint, not a manufacturer service bulletin.
Common MOT problem areas for the 2015 Peugeot RCZ include Drive shaft joints and boots (front), Brake light (rear). These are the faults that stand out compared with similar cars, not a complete list of what can go wrong on any individual car.
This page highlights MOT failure patterns for the 2015 Peugeot RCZ (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics, not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
  • If the data for a car is too thin to say anything useful, we say so rather than guess.

Contains public sector information licensed under the Open Government Licence v3.0.

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