BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

BMW G310

313cc Petrol Class 2
#618 of 5426 overall #29 of 109 BMWs #376 of 2787 other bikes
91.3%
first-time pass rate
4.3%
failed outright
4,375
median miles at test
5,862
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The G310's first-time pass rate has fallen 2.4 points since 2020, 94.2% to 91.8%.

89%92%95%2020: 94.2% pass (308 tests)2021: 90.0% pass (660 tests)2022: 92.3% pass (1,022 tests)2023: 89.7% pass (1,238 tests)2024: 91.5% pass (1,147 tests)2025: 91.8% pass (1,481 tests)20202025

Pass rate by mileage

how the G310's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage G310 passes first time 92.0% of the time; by 20k that's 82.4%.

80%87%94%0k: 92.0% pass (4,919 tests)10k: 86.4% pass (737 tests)20k: 82.4% pass (68 tests)0k10k20k

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

failure defects by component group · advisories excluded
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

same type, similar capacity, high test volume

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

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2022 (93.6% pass). Weakest: 2019 (90.7%).

90%92%94%2017: 91.2% pass (1,288 tests)2018: 91.1% pass (1,838 tests)2019: 90.7% pass (1,394 tests)2020: 90.9% pass (562 tests)2021: 93.1% pass (505 tests)2022: 93.6% pass (265 tests)201720202022

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

answers computed from the data above · terms in the glossary

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.