Should I check the MOT history before buying a 2020 BMW 730?

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 2020 BMW 730?

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 2020 BMW 730?

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 2020 BMW 730 reliable?

Based on MOT data from 361 vehicles, the 2020 BMW 730 has a first-time MOT pass rate of 94.6%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2020 BMW 730?

The most frequently recorded MOT issues on the 2020 BMW 730 are: Nearside Rear Tyre worn close to legal limit/worn on edge (26.1% of vehicles), Offside Rear Tyre worn close to legal limit/worn on edge (25.1% of vehicles), Offside Front Tyre worn close to legal limit/worn on edge (15% 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 2020 BMW 730?

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 730 (2020)

361 real MOT outcomes analysed • 94.6% first-time pass rate

2020 BMW 730

CarHunch analysed 361 real MOT records for the 2020 BMW 730. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

Moderate sample. 361 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 2020 BMW 730 passes its MOT on the first try 84.3% of the time, which is comfortably ahead of the UK average of 80%, and only 7.5% of vehicles have ever recorded a dangerous defect—a low concern for buyer safety. This is a well-maintained luxury saloon with no significant reliability red flags in the test data.

At 38,569 miles median for a four-year-old car, these examples have been driven relatively lightly, which explains the low failure rate of just 0.22 per vehicle. However, advisories average 1.3 per car, suggesting minor wear items (suspension, trim, electrics) are beginning to appear—typical for a high-specification German executive sedan, so budget for preventive maintenance on any example you're considering.

The 2020 BMW 730 passes its MOT first time more often than most UK vehicles (94.6% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ Around 1 in 20 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

94.6%

UK average ~80%

Better than average

Dangerous (ever)

7.5%

At least once in MOT history

Check this vehicle

Avg failures / car

0.22

Over 3.4 tests on record

Low

Typical mileage

39k

Middle half: 27k–51k

For context

✅ Good baseline reliability. A 94.6% 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 361 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 361 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 26.1%

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

Other issues 7.5%

Windscreen damaged but not adversely affecting driver's view

Brake wear 6.9%

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

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

Lighting 5.4%

Rear Prop shaft flexible coupling slightly deteriorated

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

Data covers a 3-year window centred on 2020.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 361 BMW 730 cars.

Before you buy a 2020 BMW 730

Based on MOT data from 361 vehicles — here's what to check.

📋 Check the full MOT history. 7.5% 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

Colour Breakdown

Based on 21,623 BMW 730 vehicles registered in the UK — across all years. From DVLA registration records.

Black 32.7%

7,071

Grey 19.6%

4,233

Silver 18.3%

3,949

Blue 13.9%

3,014

White 6.1%

1,315

Green 3.8%

828

Red 3.5%

757

Beige 0.6%

130

Bronze 0.5%

114

Gold 0.4%

Yellow 0.3%

Brown 0.2%

Mileage Distribution

Most 2020 BMW 730 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.

38,569

typical

27,486

low mileage

50,609

high mileage

Half of all 2020 BMW 730 vehicles fall between 27,486 and 50,609 miles.

Is the mileage you're seeing normal?

✓ Under 27,486 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.

✓ 27,486–50,609 miles — normal for age. This is where most 2020 BMW 730s sit.

⚠ Over 68,322 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 BMW 730 — Still on the Road

Almost all 2020 BMW 730s are still on the road.

Strong survival — 302 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 2022–2025.

MOT History Averages

3.4

Avg MOT tests per vehicle

0.22

Avg failures per vehicle

1.3

Avg advisories per vehicle

Other model years — BMW 730: All 730 years → Which year to buy? →

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Compare with another model

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