Bsa C11G Reliability, MOT Pass Rate & Common Faults
Free Bsa C11G car check
Is the Bsa C11G reliable? We analysed 308 real MOT tests across 112 vehicles to find out.
Got a specific Bsa C11G? Enter the reg for a free check:
The Bsa C11G is above average for reliability based on real UK MOT data. Common problems include wheel alignment incorrect which adversely affects the handling, drive chain excessively loose and suspension movement is excessively stiff. Here's everything you need to know before buying a used Bsa C11G.
Bsa C11G Number Plates
Number plates registered to a Bsa C11G. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Bsa C11G MOT Pass Rate by Year
How likely is a Bsa C11G to pass its MOT? Here's the pass rate for each registration year, newest first.
Bsa C11G Problems — What Goes Wrong?
The most common reasons a Bsa C11G fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Bsa C11G Mileage — What's Normal?
How many miles does a typical Bsa C11G owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Bsa C11G MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Bsa C11G year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1955 | 111 | 91.9% | 1,950 | 11,217 | 37,246 |
How Long Does a Bsa C11G Last?
Based on 112 Bsa C11G vehicles on UK roads.
Bsa C11G Mileage Distribution
Total mileage recorded across all Bsa C11G MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Bsa C11G
Based on MOT pass rates across all registration years with sufficient test data.
91.9% MOT pass rate from 111 tests
The best year to buy a used Bsa C11G is 1955, which has the highest MOT pass rate at 91.9% across 111 tests.
How Does the Bsa C11G Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Bsa C11G THIS CAR | 90.6% | 308 | 7,515 mi | 71 yrs |
| Bsa A10 | 92.2% | 10,105 | 12,338 mi | 74 yrs |
| Bsa Bantam | 89.9% | 7,723 | 13,212 mi | 77 yrs |
| Bsa C15 | 90.2% | 6,096 | 14,541 mi | 67 yrs |
| Audi A4 SE 120 TDI | 79.6% | 496 | 144,964 mi | — yrs |
Compared to the Bsa A10 (92.2% pass rate) and the Bsa Bantam (89.9% pass rate), the Bsa C11G sits in the middle of the pack on MOT reliability.
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Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Bsa C11GShould you buy a used Bsa C11G?
The Bsa C11G has an overall MOT pass rate of 90.6% across 308 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Bsa C11G are wheel alignment incorrect which adversely affects the handling (2 recorded failures), drive chain excessively loose (2), and suspension movement is excessively stiff (2). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Bsa C11G owner drives around 101 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Bsa C11G models stay on UK roads for around 71 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.