Should I check the MOT history before buying a 2021 BMW 320?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 BMW 320?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 BMW 320?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 BMW 320 reliable?

Based on MOT data from 1,141 vehicles, the 2021 BMW 320 has a first-time MOT pass rate of 92.4%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2021 BMW 320?

The most frequently recorded MOT issues on the 2021 BMW 320 are: Nearside Rear Tyre worn close to legal limit/worn on edge (27.3% of vehicles), Offside Rear Tyre worn close to legal limit/worn on edge (26.5% of vehicles), Rear Brake pad(s) wearing thin (22.9% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2021 BMW 320?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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BMW 320 (2021)

1,141 real MOT outcomes analysed • 92.4% first-time pass rate

2021 BMW 320

CarHunch analysed 1,141 real MOT records for the 2021 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 2021 BMW 320 is a genuinely reliable performer, with a 92.3% first-time MOT pass rate that comfortably beats the UK average of 80%. Dangerous defects are rare at 9.5%, so safety isn't a concern here.

At 30,516 miles median, these cars are relatively lightly used for their age, and that shows in the numbers—owners average just 0.26 failures per vehicle, with most issues caught as minor advisories rather than fails. When shopping, check the full MOT history for any pattern of repeated advisories (the average of 1.4 suggests minor wear), but don't let that deter you; this is a solid, well-sorted generation.

The 2021 BMW 320 passes its MOT first time more often than most UK vehicles (92.4% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ About 1 in 12 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

92.4%

UK average ~80%

Better than average

Dangerous (ever)

9.5%

At least once in MOT history

Check this vehicle

Avg failures / car

0.26

Over 2.5 tests on record

Low

Typical mileage

31k

Middle half: 23k–40k

For context

✅ Good baseline reliability. A 92.4% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔍 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 1,141 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.

A solid choice — agree?

What tends to go wrong

Across 1,141 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 27.3%

Nearside Rear Tyre worn close to legal limit/worn on edge · Offside 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.

Brake wear 22.9%

Rear Brake pad(s) wearing thin · Front Brake pad(s) wearing thin · Offside Rear Brake pad(s) wearing thin · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Other issues 7.8%

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 2021.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 1,141 BMW 320 cars.

Before you buy a 2021 BMW 320

Based on MOT data from 1,141 vehicles — here's what to check.

📋 Check the full MOT history. 9.5% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (99%)	1,130	92.4%	0.26

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 2021 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.

30,516

typical

22,838

low mileage

39,621

high mileage

Half of all 2021 BMW 320 vehicles fall between 22,838 and 39,621 miles.

Is the mileage you're seeing normal?

✓ Under 22,838 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.

✓ 22,838–39,621 miles — normal for age. This is where most 2021 BMW 320s sit.

⚠ Over 53,488 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2021 BMW 320 — Still on the Road

Almost all 2021 BMW 320s are still on the road.

Strong survival — 1,124 vehicles still getting MOTs in 2025, 100% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.5

Avg MOT tests per vehicle

0.26

Avg failures per vehicle

1.4

Avg advisories per vehicle

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Compare with another model

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A solid choice — agree?