BMW C400 Reliability, MOT Pass Rate & Common Faults
Free BMW C400 car check
Is the BMW C400 reliable? We analysed 1,399 real MOT tests across 434 vehicles to find out.
Got a specific BMW C400? Enter the reg for a free check:
The BMW C400 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used BMW C400.
BMW C400 Number Plates
Number plates registered to a BMW C400. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
BMW C400 MOT Pass Rate by Year
How likely is a BMW C400 to pass its MOT? Here's the pass rate for each registration year, newest first.
BMW C400 Common Faults & Problems
These are the most common serious faults found on BMW C400 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
BMW C400 Mileage — What's Normal?
How many miles does a typical BMW C400 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
BMW C400 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the BMW C400 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 150 | 96.0% | 2,188 | 3,873 | 7,324 |
| 2020 | 421 | 95.2% | 2,749 | 4,949 | 8,301 |
| 2019 | 681 | 95.7% | 3,097 | 5,371 | 9,300 |
| 2018 | 111 | 93.7% | 3,221 | 6,322 | 10,661 |
How Long Does a BMW C400 Last?
Based on 434 BMW C400 vehicles on UK roads.
BMW C400 Mileage Distribution
Total mileage recorded across all BMW C400 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 BMW C400
Based on MOT pass rates across all registration years with sufficient test data.
96.0% MOT pass rate from 150 tests
93.7% MOT pass rate from 111 tests
The best year to buy a used BMW C400 is 2021, which has the highest MOT pass rate at 96.0% across 150 tests. The 2018 model year has the lowest pass rate at 93.7% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the BMW C400 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| BMW C400 THIS CAR | 95.4% | 1,399 | 5,111 mi | — yrs |
| BMW 3 Series | 75.1% | 12,840,406 | 90,743 mi | 37 yrs |
| BMW 118 | 81.5% | 1,923,256 | 64,042 mi | 22 yrs |
| BMW X5 | 77% | 1,735,343 | 83,401 mi | 25 yrs |
| Harley-davidson Fxbrs Breakout 114 1868 18 | 92% | 865 | 5,547 mi | — yrs |
Compared to the BMW 3 Series (75.1% pass rate) and the BMW 118 (81.5% pass rate), the BMW C400 outperforms both on MOT reliability.
Found a BMW C400 you like?
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 BMW C400Should you buy a used BMW C400?
The BMW C400 has an overall MOT pass rate of 95.4% across 1,399 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a BMW C400 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical BMW C400 owner drives around 1,043 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.
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.