BMW
1,627 MOT tests analysed. sits above the UK fleet average — here's where G310s pass, fail, and end up on the retest sheet.
That's 14.1 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
91.6%
Pass-after-fix
4.0%
Fail
4.2%
Avg miles
6,762
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 1,584 tests
Pass rate climbs 1.7 points across the cohorts — newer G310 examples clear the test more reliably than the early cars.
Pass
90.4%
Fail
4.6%
PRS
4.6%
Avg mileage at test
7,912 mi
Pass
92.0%
Fail
4.1%
PRS
3.7%
Avg mileage at test
6,252 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 1,286 MOT tests, the G310 returns 90.0% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is uneven braking force. Headlamp missing, inoperative and headlamp aim out of spec round out the top three. Average tested mileage sits at 5,656, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
Above average — worth comparing quotes before buying. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
26–44
out of 50
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Brake lining or pad worn below 1.0mm
9 occurrences · 0.6% of tests
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
9 occurrences · 0.6% of tests
A transmission belt, chain, sprocket or pulley excessively loose or worn
7 occurrences · 0.4% of tests
Excessive fluctuation in brake effort through each wheel revolution
6 occurrences · 0.4% of tests
The aim of a headlamp is not within limits laid down in the requirements
5 occurrences · 0.3% of tests
Headlamp aim unable to be tested
5 occurrences · 0.3% of tests
The aim of a headlamp is not within limits laid down in the requirements
4 occurrences · 0.2% of tests
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
4 occurrences · 0.2% of tests
A stop lamp(s) remains on when the brakes are released
4 occurrences · 0.2% of tests
A lamp missing or inoperative
3 occurrences · 0.2% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 3 failures
£100–£320
If every one of this G310's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 1.6-point gap between bands is modest — the year you buy BMW G310 makes a small but real difference to MOT outcomes.
Best band to buy
92.0%
2018–2020 registration
the 2018–2020 band climbs to 92.0% — a 1.6-point improvement. Failures here are mostly wear items: not working on dipped beam, less than 1.0 mm thick — the structural issues that drag down older examples don't appear in the top-10 for this band. The stricter post-2018 MOT test rules meant manufacturers had to tighten up emissions and electrical checks, but this band still shows far fewer major failures on suspension and bodywork than the older fleet.
Band to be cautious about
90.4%
Pre-2018 registration
On the older band (pre-2018), the data shows a 90.4% pass rate against a fleet average of 92.0% on the newer band. The main culprits logged at test: excessively loose, less than 1.0 mm thick, and indicates excessive fluctuation of brake effort. Average mileage on test for this band is 7,912 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (92.0% first-time pass). Worst band to avoid: pre-2018 (90.4% pass). That's a 1.6-point spread across 541 older tests and 1,043 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Item 02 · Amazon UK
Headlight restoration kit
Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.
Search Amazon UK
My Motor World · affiliate
Affiliate links — small commission, no extra cost to you.
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Click Mechanic · affiliate
Affiliate links — small commission, no extra cost to you.
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Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a G310 and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
