Should I check the MOT history before buying a 1991 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 1991 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 1991 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 1991 BMW 730 reliable?

Based on MOT data from 420 vehicles, the 1991 BMW 730 has a first-time MOT pass rate of 71.3%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1991 BMW 730?

The most frequently recorded MOT issues on the 1991 BMW 730 are: Fuel pipe/s corroded (35.6% of vehicles), Oil leak (32.6% of vehicles), Nearside Rear Tyre worn close to the legal limit (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 1991 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 (1991)

420 real MOT outcomes analysed • 71.3% first-time pass rate

1991 BMW 730

CarHunch analysed 420 real MOT records for the 1991 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? →

On this page

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

Moderate sample. 420 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 1991 BMW 730 has a below-average first-time pass rate (71.3% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ Around 1 in 8 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

71.3%

UK average ~80%

Below average

Dangerous (ever)

12.1%

At least once in MOT history

Check this vehicle

Avg failures / car

1.57

Over 5.2 tests on record

High

Typical mileage

150k

Middle half: 119k–174k

For context

⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.

🔧 Expect consumable spend. An average of 6.6 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 420 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.

Buyer beware — pass it on

What tends to go wrong

Across 420 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Other issues 35.6%

Fuel pipe/s corroded · Oil leak · Windscreen has damage to an area less than a 40mm circle outside zone 'A'

Tyre wear 22.9%

Nearside Rear Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · Offside Front Tyre worn close to the legal limit · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 19.6%

Parking brake: efficiency below requirements · Offside Rear Brake pipe slightly corroded · Offside Front Brake pipe slightly corroded · …

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

Suspension & steering 14.7%

Steering system has slight free play detected at steering wheel

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Lighting 11.8%

Rear Exhaust has part of the system slightly deteriorated

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

Exhaust & emissions 11.8%

Rear Exhaust has a minor leak of exhaust gases · Exhaust has a minor leak of exhaust gases

Data covers a 3-year window centred on 1991.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 420 BMW 730 cars.

Before you buy a 1991 BMW 730

Based on MOT data from 420 vehicles — here's what to check.

📋 Check the full MOT history. 12.1% 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 (100%)	419	71.3%	1.57

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 1991 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.

149,501

typical

118,617

low mileage

174,474

high mileage

Half of all 1991 BMW 730 vehicles fall between 118,617 and 174,474 miles.

Is the mileage you're seeing normal?

✓ Under 118,617 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.

✓ 118,617–174,474 miles — normal for age. This is where most 1991 BMW 730s sit.

⚠ Over 235,539 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1991 BMW 730 — Still on the Road

Numbers are thinning — 31% of 1991 BMW 730s are still active.

Numbers are declining — 11 vehicles still getting MOTs in 2025 (31% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

5.2

Avg MOT tests per vehicle

1.57

Avg failures per vehicle

6.6

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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Buyer beware — pass it on