Should I check the MOT history before buying a 2018 BMW 120?

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 2018 BMW 120?

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 2018 BMW 120?

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.

How many 2018 BMW 120 vehicles have had dangerous defects recorded?

27% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2018 BMW 120 reliable?

Based on MOT data from 1,379 vehicles, the 2018 BMW 120 has a first-time MOT pass rate of 88.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2018 BMW 120?

The most frequently recorded MOT issues on the 2018 BMW 120 are: Offside Rear Tyre worn close to legal limit/worn on edge (33.7% of vehicles), Nearside Rear Tyre worn close to legal limit/worn on edge (32.9% of vehicles), Rear Brake pad(s) wearing thin (28.8% 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 2018 BMW 120?

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.

CarHunch

Get Started

BMW 120 (2018)

1,379 real MOT outcomes analysed • 88.7% first-time pass rate

2018 BMW 120

CarHunch analysed 1,379 real MOT records for the 2018 BMW 120. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page

AI Analysis Reliability Overview Common Issues Check a Specific Reg Petrol vs Diesel Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 BMW 120 passes its MOT at 88.7%, comfortably above the UK average of 80%, but nearly three in ten have recorded a dangerous defect at some point—a significant concern for safety-conscious buyers. Petrol versions edge out diesels with a 90.3% pass rate versus 87.5%, suggesting the petrol engine is slightly more robust in this generation.

These cars are running relatively light at 44,400 miles median, so you're not looking at hard-used examples, yet they still average 0.78 failures and 4.5 advisories per test—mostly minor niggles rather than showstoppers. Before committing to one, get a thorough pre-purchase inspection that specifically probes the brake system and suspension, where BMW 120s commonly rack up their advisory flags.

The 2018 BMW 120 has a decent first-time pass rate (88.7%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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

88.7%

UK average ~80%

Better than average

Dangerous (ever)

27.4%

At least once in MOT history

Check this vehicle

Avg failures / car

0.78

Over 6 tests on record

Moderate

Typical mileage

44k

Middle half: 35k–56k

For context

✅ Good baseline reliability. A 88.7% 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 4.5 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 1,379 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.

Watch for defects — worth knowing

What tends to go wrong

Across 1,379 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 33.7%

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 28.8%

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 9.9%

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

Lighting 6%

Nearside Front Road wheel slightly distorted

Usually cheap to fix. Worth confirming all lights work before collecting.

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 1,379 BMW 120 cars.

Petrol vs Diesel

Pass rate difference of 2.8 percentage points — worth knowing if you're choosing between the two.

90.3%

Petrol

610 vehicles

87.5%

Diesel

769 vehicles

Before you buy a 2018 BMW 120

Based on MOT data from 1,379 vehicles — here's what to check.

📋 Check the full MOT history. 27.4% 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
Diesel (56%)	769	87.5%	0.88
Petrol (44%)	610	90.3%	0.66

Colour Breakdown

Based on 61,678 BMW 120 vehicles registered in the UK — across all years. From DVLA registration records.

Black 25%

15,439

Blue 21.4%

13,186

Grey 18.8%

11,584

Silver 14.5%

8,949

White 13.9%

8,559

Red 4.2%

2,609

Orange 0.9%

551

Brown 0.6%

398

Green 0.4%

276

Gold 0.1%

Bronze 0.1%

Mileage Distribution

Most 2018 BMW 120 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.

44,417

typical

34,656

low mileage

56,077

high mileage

Half of all 2018 BMW 120 vehicles fall between 34,656 and 56,077 miles.

Is the mileage you're seeing normal?

✓ Under 34,656 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.

✓ 34,656–56,077 miles — normal for age. This is where most 2018 BMW 120s sit.

⚠ Over 75,703 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 120 — Still on the Road

Almost all 2018 BMW 120s are still on the road.

Strong survival — 1,325 vehicles still getting MOTs in 2025, 98% of the peak.

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

Avg MOT tests per vehicle

0.78

Avg failures per vehicle

4.5

Avg advisories per vehicle

Other model years — BMW 120: All 120 years → Which year to buy? →

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2019 2020 2021

Or browse all models: BMW →

Compare with another model

See how the 2018 BMW 120 stacks up against a rival.

Watch for defects — worth knowing