Pass rate over time
The G310's first-time pass rate has fallen 2.4 points since 2020, 94.2% to 91.8%.
Pass rate by mileage
A low-mileage G310 passes first time 92.0% of the time; by 20k that's 82.4%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a G310
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lamps and reflectors |
|
145 | 35 | 1.2× |
| structure and attachments |
|
83 | 20 | 1.5× |
| brakes |
|
70 | 16.9 | 0.3× |
| suspension |
|
45 | 10.9 | 0.9× |
| steering |
|
35 | 8.5 | 1.1× |
| tyres |
|
16 | 3.9 | 0.4× |
| Identification of the vehicle |
|
11 | 2.7 | 0.8× |
| audible warning (Horn) |
|
6 | 1.4 | 0.6× |
| wheels |
|
3 | 0.7 | 0.9× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the G310 beats 4 of its 4 closest rivals (SUZUKI AN400, SUZUKI DR-Z400S, YAMAHA RD350).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the G310.
Pass rate by registration year
Best year to buy used: 2022 (93.6% pass). Weakest: 2019 (90.7%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
BMW G310 FAQ
Is the BMW G310 reliable?
The BMW G310 is more reliable than average for its class: 91.3% of its 5,862 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #618 of 5426 models.
What does a G310 fail its MOT on most?
lamps and reflectors — 35% of all defects recorded against failed G310 tests.
What is the best year of G310 to buy used?
By first-time pass rate, 2022-registered examples do best (93.6%) and 2019 worst (90.7%). Condition and history still trump the year.
How many miles will a G310 last?
The median G310 shows 4,375 miles at test, and examples around 20k miles still pass 82.4% of the time — mileage alone rarely kills one.