BMW

BMW 330 (2018)

3,774 real MOT outcomes analysed • 90% first-time pass rate

2018 BMW 330

CarHunch analysed 3,774 real MOT records for the 2018 BMW 330. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 BMW 330 significantly outperforms the UK average with a 90% first-time pass rate against the 80% benchmark, though nearly 23% of these cars have recorded a dangerous defect at some point—a concerning proportion that warrants a pre-purchase inspection. Diesel variants edge ahead at 91.1% pass rate compared to the hybrid-electric majority at 89.8%, suggesting marginally better durability in the smaller sample.

At 57,933 miles average, these cars sit comfortably within expectations for their age and should be reliable workhorses, yet they average 0.61 failures and 4.1 advisories per test, pointing to predictable wear on non-critical systems rather than structural problems. Before buying, insist on a full service history and independent diagnostic check of the electrical and suspension systems, where most advisories tend to cluster on this platform.

The 2018 BMW 330 passes its MOT first time at roughly the UK average rate (90%) — solid but worth checking this vehicle's history carefully.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
90%
UK average ~80%
Better than average
Dangerous (ever)
22.8%
At least once in MOT history
Check this vehicle
Avg failures / car
0.61
Over 5.3 tests on record
Moderate
Typical mileage
55k
Middle half: 42k–71k
For context
Good baseline reliability. A 90% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.
🔧 Expect consumable spend. An average of 4.1 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 3,774 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 3,774 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 32.8%
Offside Rear Tyre worn close to legal limit/worn on edge · Nearside Rear Tyre worn close to legal limit/worn on edge · Nearside Front Tyre worn close to legal limit/worn on edge · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Other issues 18.6%
COVID-19 6 MONTH EXTENSION · Nearside Rear Child Seat fitted not allowing full inspection of adult belt · Windscreen damaged but not adversely affecting driver's view
Brake wear 13.5%
Rear Brake pad(s) wearing thin · Front Brake disc worn, pitted or scored, but not seriously weakened · Front Brake pad(s) wearing thin
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Suspension & steering 6.7%
Offside Front Play in steering rack inner joint(s) · Nearside Rear Shock absorbers has light misting of oil · Offside Rear Shock absorbers has light misting of oil
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 2018.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 3,774 BMW 330 cars.

UK

Before you buy a 2018 BMW 330

Based on MOT data from 3,774 vehicles — here's what to check.

  • 📋 Check the full MOT history. 22.8% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Hybrid Electric (Clean) (84%) 3,187 89.8% 0.63
Diesel (13%) 503 91.2% 0.52
Petrol (2%) 82 91.7% 0.55

Colour Breakdown

Based on 23,073 BMW 330 vehicles registered in the UK — across all years. From DVLA registration records.

Blue 27.8%
6,413
Grey 23.4%
5,410
Black 21.5%
4,958
White 18.4%
4,252
Silver 4.5%
1,041
Orange 2.3%
532
Red 1.6%
377
Brown 0.1%
33
Beige 0.1%
32
Bronze 0.1%
16
Green 0%
9

Mileage Distribution

Most 2018 BMW 330 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

55,212
typical
42,102
low mileage
70,873
high mileage

Half of all 2018 BMW 330 vehicles fall between 42,102 and 70,873 miles.

Is the mileage you're seeing normal?
Under 42,102 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
42,102–70,873 miles — normal for age. This is where most 2018 BMW 330s sit.
Over 95,678 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 BMW 330 — Still on the Road

Most 2018 BMW 330s are still being driven.

Strong survival — 3,008 vehicles still getting MOTs in 2025, 83% of the peak.

3,622 3,008 2021 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

5.3
Avg MOT tests per vehicle
0.61
Avg failures per vehicle
4.1
Avg advisories per vehicle
Other model years — BMW 330: All 330 years → Which year to buy? →
2016 2017 2019 2020 2021

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Average reliability — agree?