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C783 MRN

1986 Mercedes-benz 420

Black Petrol 4200cc
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MOT Status

Valid
Expires10 Mar 2027
Tests6 (4 pass, 2 fail)
Pass rate66.7%

Mileage

85,983 mi
Last recorded85,983 miles
Recorded on11 Mar 2026
Typical for 1986 Mercedes-benz 420107,080 mi

Below or average mileage for this year

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

RegistrationC783 MRN
MakeMercedes-benz
Model420
Year1986
ColourBlack
Fuel typePetrol
Engine4,200cc

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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

4 pass 2 fail
Pass 11 Mar 2026 85,983 miles

BOTH WIPER BLADES DETERIORATED

SURFACE CORROSION ON BRAKE PIPES

SURFACE CORROSION ON CHASSIS AND BODY PANELS

Fail 9 Mar 2026 85,982 miles

Nearside Front Brake hose ferrule excessively corroded (1.1.12 (f) (i))

Nearside Headlamp aim too high (4.1.2 (a))

Offside Front Position lamp not working (4.2.1 (a) (ii))

Offside Headlamp aim too low (4.1.2 (a))

Offside Rear Position lamp not working (4.2.1 (a) (ii))

Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))

Speedometer cannot be illuminated (7.8 (c) (ii))

BOTH WIPER BLADES DETERIORATED

SURFACE CORROSION ON BRAKE PIPES

SURFACE CORROSION ON CHASSIS AND BODY PANELS

Fail 24 Dec 2025 85,954 miles

Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))

Exhaust emits excessive dense blue smoke during acceleration (8.2.1.2 (g))

Nearside Front Brake hose excessively damaged (1.1.12 (b) (ii))

Nearside Front Headlamp aim too high (4.1.2 (a))

Nearside Rear Subframe mounting prescribed area excessively corroded significantly reducing structural strength Floor (5.3.6 (a) (i))

Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Offside Front Lower Suspension arm corroded and seriously weakened (5.3.3 (b) (i))

Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Offside Obligatory indirect vision device insecure (3.3 (b) (ii))

Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Power steering component leaking pipes / steering box (2.1.5 (a))

Rear Exhaust system insecure (6.1.2 (a))

Central Brake pipe corroded, covered in grease or other material Front to rear (1.1.11 (c))

Fuel Pipe/s corroded ()

Integral body structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Nearside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

Nearside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i))

Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

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

Play in steering rack inner joint(s) ()

vehicle heavily under sealed

Pass 3 Oct 2024 85,033 miles
Pass 3 Oct 2023 84,053 miles
Pass 5 Sep 2022 83,849 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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C783 MRN is a 1986 Mercedes-benz 420 in Black with a 4,200cc petrol engine. This vehicle has been through 6 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 C783 MRN, 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 C783 MRN?

You can check the full history of C783 MRN by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was C783 MRN registered?

C783 MRN is a 1986 Mercedes-benz 420, first registered on 31 December 1986.

Is C783 MRN safe to buy?

The MOT history for C783 MRN shows 6 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 C783 MRN 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 C783 MRN. 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.