Should I check the MOT history before buying a 1981 BMW 518?

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 1981 BMW 518?

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 1981 BMW 518?

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.

What are common problems with the 1981 BMW 518?

The most frequently recorded MOT issues on the 1981 BMW 518 are: Body has slight corrosion (87.5% of vehicles), Oil leak (87.5% of vehicles), Vehicle structure has slight corrosion (87.5% 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 1981 BMW 518?

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 518 (1981)

167 real MOT outcomes analysed

1981 BMW 518

CarHunch has 167 1981 BMW 518 vehicles on record, but none have light-vehicle MOT history in our data source.

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No MOT data available for this vehicle type

The 1981 BMW 518 doesn't appear in DVLA light-vehicle MOT records — it may be exempt, registered as a different vehicle class, or an import not subject to UK MOT testing. We don't have reliability stats for this specific model, but you can browse other BMW vehicles below.

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No MOT data — worth knowing

Got a specific BMW 518 you're checking out?

The real detail is in the individual vehicle report — MOT history, AI Hunches, mileage timeline, and defect patterns for that specific reg.

The 1981 BMW 518 falls outside the DVLA's light-vehicle MOT database, so we have no MOT test statistics—pass rates, defect patterns, or failure history—to analyse for this cohort of 167 vehicles. This is typical for cars of this age; most 40+ year old vehicles are either kept off the road, registered as historic/classic, or have insufficient test records in the system to draw meaningful conclusions. What matters for a 518 at this stage is the specific car's documented service history, whether it's been properly maintained through the decades, and whether you're buying it as a usable classic or a restoration project. Before purchase, have an independent specialist inspect the electrics, fuel system, and rust patterns—common weak points on BMW saloons of this era—rather than relying on MOT data.

MOT statistics not available

We have 167 1981 BMW 518 vehicles on record, but none have light-vehicle MOT history in our data source.

There are a few reasons this can happen:

Heavy commercial vehicle — trucks, buses and coaches over 3.5 tonnes are tested under the DVSA annual HGV/PSV regime, which uses a separate database not included in our data source
Imported vehicles — vehicles registered abroad and recently brought to the UK may have no UK MOT history yet
MOT-exempt — vehicles manufactured before 1986 qualify under the 40-year rolling exemption; some specialist and agricultural vehicles are also exempt
Never used on public roads — some vehicles are registered but kept off-road and have never required an MOT

Check on the official DVSA service →

What tends to go wrong

Across 167 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Corrosion / rust 87.5%

Body has slight corrosion · Vehicle structure has slight corrosion

Inspect sills, subframes and brake pipes in person — photos rarely show structural rust.

Other issues 87.5%

Oil leak · Fuel pipe/s corroded · Front Windscreen has damage to an area less than a 10mm circle within zone 'A' · …

Tyre wear 50%

Offside Rear Tyre worn close to the legal limit · Nearside Rear 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 37.5%

Offside Front Brake pipe excessively corroded · Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. · Brake pipe slightly corroded

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

Suspension & steering 25%

advanced deterioration & perishing to front & rear suspension rubbers & bushes

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

Lighting 25%

Offside Rear fog lamp not working

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

Data covers a 3-year window centred on 1981.

Before you buy a 1981 BMW 518

Based on MOT data from 167 vehicles — here's what to check.

📋 Check the full MOT history. 0% 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

Other model years — BMW 518: All 518 years → Which year to buy? →

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