Citroen C1 - 2021
70.4 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Citroen C1, model year 2021.
Sample size: 4,605 cars, 8,877 tests and 6,251 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 4,605 cars
The 2021 Citroen C1 has an overall defect rate of 70 per 100 vehicles, which is notably lower than the yearly average of 79 per 100, representing a 10% improvement. Mileage-related trends indicate that the defect rate remains consistently low across lower mileage segments but increases significantly for vehicles over 93,000 miles. This model excels in several categories, particularly steering, visibility, and body structure, all showing significantly fewer defects compared to the average. There are no standout issues for this model, making it a reliable choice within its year group.
Cars by mileage segment
Total: 4,605 cars
More model years for Citroen C1
Other models from Citroen
Categories
Brakes
▼ 12.8% worse
45.1 faults / 100 tests
Year avg: 40.0 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brake disc or drum: significantly and obviously worn
- Brake lining or pad: worn below 1.5mm
- Brake lining or pad: worn below 1.5mm
Steering
▲ 85.7% better
0.1 faults / 100 tests
Year avg: 0.7 / 100 tests
- Steering
- A steering ball joint: with excessive wear or free play
- A steering ball joint: worn to the extent there is a serious risk of detachment
- Steering linkage retaining or locking device missing or ineffective
Visibility
▲ 49.7% better
7.3 faults / 100 tests
Year avg: 14.5 / 100 tests
- Wiper blade: defective
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 49.1% better
5.7 faults / 100 tests
Year avg: 11.2 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Lamp: not securely attached
- The aim of a headlamp is not within limits laid down in the requirements
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Stop lamp(s): with a multiple light source up to 1/2 not functioning
Wheels & Suspension
▲ 6.8% better
81.4 faults / 100 tests
Year avg: 87.3 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A shock absorber damaged … or showing signs of severe leakage
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 85.7% better
0.3 faults / 100 tests
Year avg: 2.1 / 100 tests
- A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
- A door will not open using the relevant control or close properly
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- A transmission shaft constant velocity joint boot: severely deteriorated
- Bumper: insecure or with damage likely to cause injury when grazed or contacted
Equipment
▲ 86.7% better
0.2 faults / 100 tests
Year avg: 1.5 / 100 tests
- A seat belt:
- A seat belt:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- ESC MIL indicates a system malfunction
- A seat belt: or flexible stalk damaged
Other
▲ 70.4% better
0.8 faults / 100 tests
Year avg: 2.7 / 100 tests
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Emissions test unable to be completed
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Engine MIL inoperative or indicating a malfunction
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,318
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,119
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 974
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 431
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 287
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 286
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 286
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 156
Wiper blade: defective
MINOR
Occurrences: 103
A wheel: badly distorted or wear between wheel and hub at spigot mounting
ADVISORY
Occurrences: 97
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 156
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 94
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 90
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 56
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 54
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 47
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 22
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 20
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 16
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 15