Citroen Bx MOT reliability

Citroen Bxs passed their MOT first time 67% of the time across 254 tests in 2025. 216 are still licensed in Great Britain.

First-time pass rate

67%

MOTs analysed

254

Still licensed (GB)

216

Body type

–

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

1992 diesel

28 MOTs

These figures come from 28 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 68%. Typical mileage 150,965 (most between 113,578 and 178,973).

2005: 49% → 2006: 51% → 2007: 49% → 2008: 49% → 2009: 50% → 2010: 51% → 2011: 47% → 2012: 55% → 2013: 56% → 2014: 48% → 2015: 51% → 2016: 56% → 2017: 63% → 2018: 52% → 2019: 59% → 2020: 64% → 2021: 61% → 2022: 63% → 2023: 67% → 2024: 63% → 2025: 68%

Most common failures

Position lamp: not working (10.7%)
Service brake performance: efficiency below requirements (10.7%)
Service brake efficiency (Trikes, quads and pre-68 vehicles): imbalanced across an axle (7.1%)
Service brake imbalance: across an axle (7.1%)
Pipes: leaking (7.1%)

1992 petrol

18 MOTs

These figures come from only 18 MOT tests. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 61%. Typical mileage 77,158 (most between 62,782 and 132,465).

2005: 44% → 2006: 49% → 2007: 48% → 2008: 56% → 2009: 44% → 2010: 53% → 2011: 55% → 2012: 58% → 2013: 56% → 2014: 61% → 2015: 56% → 2016: 70% → 2017: 50% → 2018: 71% → 2019: 69% → 2020: 53% → 2021: 67% → 2022: 65% → 2023: 77% → 2024: 61% → 2025: 61%

Most common failures

Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt (11.1%)
Headlamp: not working on dipped beam (11.1%)
Non catalyst emissions: emissions carbon monoxide content excessive (11.1%)
Headlamp aim: too low (11.1%)
Pipes: damaged or deteriorated and function affected (5.6%)

Where 1992 Bxs fail

Suspension & axles

21.4%

Brakes

17.9%

Lights & electrics

14.3%

Visibility & wipers

10.7%

Body, structure & corrosion

7.1%

Wheels & tyres

7.1%

Exhaust, emissions & leaks

7.1%

Seat belts & other equipment

7.1%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.