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D520 OGB

1986 Mercedes-benz 420

Black Petrol 4196cc
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MOT Status

Expired
Expires11 Dec 2025
Tests21 (14 pass, 7 fail)
Pass rate66.7%

Mileage

153,777 mi
Last recorded153,777 miles
Recorded on12 Feb 2026
Typical for 1986 Mercedes-benz 420107,080 mi

Significantly above average — investigate

4 checks still locked for this Mercedes-benz
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Finance
Write-off
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Vehicle Details

RegistrationD520 OGB
MakeMercedes-benz
Model420
Year1986
ColourBlack
Fuel typePetrol
Engine4,196cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

14 pass 7 fail
Fail 12 Feb 2026 153,777 miles

Offside Rear Outer Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill section -next to sill drain hole (5.3.6 (a) (i))

Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength underside floor section (5.3.6 (a) (i))

Offside Rear fog lamp not working (4.5.1 (a) (ii))

Pass 12 Dec 2024 153,281 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 6 Oct 2023 152,629 miles

Front Oil leak, but not excessive (8.4.1 (a) (i))

Nearside Rear Sub-frame pin or bush worn but not resulting in excessive movement not located fully home (5.3.4 (a) (i))

Offside Rear Sub-frame pin or bush worn but not resulting in excessive movement not located fully home (5.3.4 (a) (i))

Pass 17 Jun 2021 152,583 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 10 Jun 2020 151,540 miles

Front Brake disc worn, but not excessively (1.1.14 (a) (i))

Oil leak, but not excessive Engine (8.4.1 (a) (i))

Rear sills starting to corrode

Steering box has slight free play detected at steering wheel (2.3 (a) (i))

Fail 10 Jun 2020 151,535 miles

Nearside Front Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))

Nearside Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a))

Rear fog lamp not working (4.5.1 (a) (ii))

Front Brake disc worn, but not excessively (1.1.14 (a) (i))

Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))

Oil leak, but not excessive Engine (8.4.1 (a) (i))

Rear sills starting to corrode

Steering box has slight free play detected at steering wheel (2.3 (a) (i))

Pass 31 May 2019 150,377 miles

Steering box has slight free play detected at steering wheel (2.3 (a) (i))

Pass 29 May 2018 147,404 miles

Nearside Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Steering box has slight free play detected at steering wheel (2.3 (a) (i))

Fail 29 May 2018 147,404 miles

Nearside Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Rear fog lamp not working (4.5.1 (a) (ii))

Steering box has slight free play detected at steering wheel (2.3 (a) (i))

Pass 6 Jun 2017 145,161 miles

Nearside Front Upper Front suspension ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Offside Front Upper Front suspension ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Steering pivot point has slight play intermediate drop arm bushing (2.2.B.1g)

Steering system has slight free play detected at steering wheel (2.2.A.1a)

Fail 6 Jun 2017 145,161 miles

Nearside Front Upper Front suspension ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Offside Front Upper Front suspension ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Steering pivot point has slight play intermediate drop arm bushing (2.2.B.1g)

Steering system has slight free play detected at steering wheel (2.2.A.1a)

Windscreen washer provides insufficient washer liquid (8.2.3)

Pass 6 Jun 2016 141,900 miles
Pass 17 Jun 2015 140,809 miles
Fail 17 Jun 2015 140,809 miles

Offside Inner Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Nearside Rear position lamp(s) not working (1.1.A.3b)

Pass 14 Jul 2014 140,182 miles

Nearside Front Seat belt damaged but webbing not significantly weakened (5.2.2a)

Oil leak

offside rear tyre wearing on inner edge

rear back box bracket broken but exhaust still adequately supported

various areas of corrosion

Pass 24 Oct 2012 137,679 miles

Rear Tyre worn close to the legal limit (4.1.E.1)

Fail 10 Aug 2012 137,381 miles

Nearside Front position lamp(s) not working (1.1.A.3b)

Nearside Rear Seat belt anchorage prescribed area is excessively corroded (5.2.6)

Nearside Rear Suspension spring mounting prescribed area is excessively corroded (2.4.A.3)

Offside Headlamp not working on dipped beam (1.7.5a)

Rear fog lamp not working (1.3.2b)

Front Anti-roll bar linkage rubber mounting deteriorated but not resulting in excessive movement (2.4.G.2)

Front Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Nearside Steering pivot point has slight play (2.2.B.1g)

Nearside Track rod end ball joint dust cover deteriorated, but preventing the ingress of dirt (2.2.C.1c)

Offside Rear Tyre worn close to the legal limit (4.1.E.1)

Rear Suspension component mounting prescribed area is corroded but not considered excessive (2.4.A.3)

Steering system has slight free play detected at steering wheel (2.2.A.1a)

Pass 11 Jul 2011 129,171 miles

1.advice slight oil leak's from steering box. 2.brake warning light coming on at time's.

Oil leak

Rear Brake pad(s) wearing thin (3.5.1g)

Steering system has slight free play detected at steering wheel (2.2.A.1a)

Fail 12 Jul 2010 122,258 miles

Front Brake pad(s) wearing thin (3.5.1g)

Offside Rear Registration plate lamp not working (1.1.C.1d)

Pass 12 Jul 2010 122,258 miles

Front Brake pad(s) wearing thin (3.5.1g)

Pass 6 Jun 2006 116,538 miles

How Reliable is the Mercedes-benz 420?

Based on 24,311 MOT tests across 2,343 vehicles.

75.7%
Pass Rate
809
Miles/Year
40
Year Lifespan
2,343
On UK Roads

Top MOT Failure Points

Suspension component mounting prescribed area is excessively corroded 647
Brake pipe excessively corroded 577
Tyre tread depth below requirements of 1.6mm 565
brake binding 530
Windscreen wiper does not clear the windscreen effectively 479
Full Mercedes-benz 420 reliability report

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D520 OGB is a 1986 Mercedes-benz 420 in Black with a 4,196cc petrol engine. This vehicle has been through 21 MOT tests with a personal pass rate of 66.7%.

Across all 1986 Mercedes-benz 420 models, the average MOT pass rate is 75.0% with a typical mileage of 107,080 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Mercedes-benz 420 fails its MOT is suspension component mounting prescribed area is excessively corroded, accounting for 647 recorded failures. If you're considering buying D520 OGB, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz 420 typically stays on UK roads for around 40 years. At 40 years old, this Mercedes-benz 420 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of D520 OGB?

You can check the full history of D520 OGB by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was D520 OGB registered?

D520 OGB is a 1986 Mercedes-benz 420, first registered on 1 September 1986.

Is D520 OGB safe to buy?

The MOT history for D520 OGB shows 21 tests with a 66.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does D520 OGB have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on D520 OGB. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.