BMW

BMW 320 (2018)

9,064 real MOT outcomes analysed • 90.7% first-time pass rate

2018 BMW 320

CarHunch analysed 9,064 real MOT records for the 2018 BMW 320. 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 320 passes its MOT first time at 90.7%, well above the UK average of 80%, suggesting solid baseline reliability—though nearly a quarter of this cohort has experienced a dangerous defect at some point, which is a genuine concern for a used buyer. Petrol models perform slightly better than diesels (91.7% vs 90.3% pass rate), but both are respectable.

With a median mileage of just under 50,000 miles for a six-year-old car, these are relatively low-mileage examples, yet they're still averaging 4.6 advisories each and 0.62 failures per vehicle, suggesting that age-related wear—not heavy use—is the main culprit. Before purchase, get a full inspection of the cooling system and suspension components, as these are typical weak points on ageing BMWs, and factor in ongoing maintenance costs even on well-maintained examples.

The 2018 BMW 320 passes its MOT first time at roughly the UK average rate (90.7%) — 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
90.7%
UK average ~80%
Better than average
Dangerous (ever)
23%
At least once in MOT history
Check this vehicle
Avg failures / car
0.62
Over 5.7 tests on record
Moderate
Typical mileage
50k
Middle half: 38k–64k
For context
Good baseline reliability. A 90.7% 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 4.6 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 9,064 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 9,064 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 35%
Offside Rear Tyre worn close to legal limit/worn on edge · Nearside Rear Tyre worn close to legal limit/worn on edge · Offside 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.
Brake wear 25.3%
Rear Brake pad(s) wearing thin · Front Brake pad(s) wearing thin · Front Brake disc worn, pitted or scored, but not seriously weakened · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 17.2%
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 · …

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 9,064 BMW 320 cars.

UK

Before you buy a 2018 BMW 320

Based on MOT data from 9,064 vehicles — here's what to check.

  • 📋 Check the full MOT history. 23% 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
Diesel (71%) 6,420 90.3% 0.64
Petrol (29%) 2,643 91.7% 0.55

Colour Breakdown

Based on 56,995 BMW 320 vehicles registered in the UK — across all years. From DVLA registration records.

Black 20.8%
11,835
Blue 19.8%
11,282
White 19%
10,845
Grey 17%
9,667
Silver 8.8%
5,021
Red 6.5%
3,693
Green 4.4%
2,535
Gold 1.1%
625
Brown 0.8%
454
Orange 0.8%
433
Bronze 0.7%
388
Beige 0.4%
217

Mileage Distribution

Most 2018 BMW 320 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.

49,958
typical
38,381
low mileage
64,405
high mileage

Half of all 2018 BMW 320 vehicles fall between 38,381 and 64,405 miles.

Is the mileage you're seeing normal?
Under 38,381 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.
38,381–64,405 miles — normal for age. This is where most 2018 BMW 320s sit.
Over 86,946 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 320 — Still on the Road

Almost all 2018 BMW 320s are still on the road.

Strong survival — 8,490 vehicles still getting MOTs in 2025, 96% of the peak.

8,862 8,490 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

5.7
Avg MOT tests per vehicle
0.62
Avg failures per vehicle
4.6
Avg advisories per vehicle
Other model years — BMW 320: All 320 years → Which year to buy? →
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Average reliability — agree?