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H647 NJM

1991 Mercedes-benz 420

Grey Petrol 4196cc
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MOT Status

Valid
Expires17 Apr 2027
Tests21 (14 pass, 7 fail)
Pass rate66.7%

Mileage

272,477 mi
Last recorded272,477 miles
Recorded on18 Apr 2026
Typical for 1991 Mercedes-benz 420125,557 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

RegistrationH647 NJM
MakeMercedes-benz
Model420
Year1991
ColourGrey
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
Pass 18 Apr 2026 272,477 miles

Exhaust has a minor leak of exhaust gases (6.1.2 (a))

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

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 4 Jul 2024 272,000 miles

Service brake efficiency only just met. it would appear that the braking system requires adjustment or repair.

Pass 27 May 2023 271,234 miles

Hazard warning switch faulty (4.4.2 (a) (i))

Nearside Front Tyre worn close to legal limit/worn on edge smoother inner and outer edge replacement advised (5.2.3 (e))

Offside Front Tyre worn close to legal limit/worn on edge smoother inner and outer edge replacement advised (5.2.3 (e))

lower floor pan undersealed

Fail 13 Mar 2018 270,876 miles

Emissions not tested (7.3.A.1)

Exhaust engine idle speed too high (7.3.A.2a)

Exhaust has a major leak of exhaust gases (7.1.2)

Nearside Front Direction indicator not working (1.4.A.2c)

Nearside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Nearside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.2.C.1c)

Offside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Offside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Parking brake: efficiency below requirements (3.7.B.7)

Rear bumper rusty

oil leak present

Pass 21 Mar 2017 268,896 miles
Fail 15 Mar 2017 268,896 miles

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

Offside Rear Tyre has ply or cords exposed nexen 255/40ZR 17 94w (4.1.D.1b)

Nearside Rear tyre is wearing on the inner edge (nexen 255/40ZR17 94W)

Offside Front Brake back plate(s) securing device deteriorated

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

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

Oil leak ()

Pass 24 Feb 2016 264,097 miles

Engine oil leak

Offside Rear Inner Tyre budget 255/45ZR17 94W has excessive wear

Steering box has a slight oil leak (2.2.D.2e)

Fail 22 Feb 2016 264,097 miles

Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush (2.4.G.2)

Offside Rear Anti-roll bar linkage has excessive play in a pin/bearing (2.4.G.2)

Engine oil leak

Offside Rear Inner Tyre budget 255/45ZR17 94W has excessive wear

Steering box has a slight oil leak (2.2.D.2e)

Pass 21 Feb 2015 257,930 miles
Pass 7 Feb 2014 253,999 miles

Exhaust has a minor leak of exhaust gases (7.1.2)

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

Fail 3 Feb 2014 253,999 miles

Nearside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Nearside Track rod end ball joint dust cover missing (2.2.C.1c)

Offside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Offside Rear wheel bearing has excessive play (2.6.2)

Parking brake: efficiency below requirements (3.7.B.7)

Exhaust has a minor leak of exhaust gases (7.1.2)

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

Pass 21 Feb 2013 250,674 miles

your tax and mot expiryed on31/10/2012 its advised not to let your tax or mot to expiryer as your insurance can be void

Fail 30 Jan 2013 250,651 miles

Exhaust has a major leak of exhaust gases (7.1.2)

Nearside Front Shock absorber has a serious fluid leak (2.7.3)

Nearside Front Upper Anti-roll bar has excessive play in a ball joint (2.4.G.2)

Nearside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Nearside Front brake disc in such a condition that it is seriously weakened (3.5.1i)

Nearside Front coil spring corroded so that its cross sectional area is reduced and seriously weakened (2.4.C.1b)

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

Nearside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

Nearside Rear coil spring corroded so that its cross sectional area is reduced and seriously weakened (2.4.C.1b)

Offside Front Driver's seat fore and aft adjustment mechanism not functioning as intended. (6.2.A.3)

Offside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Offside Front brake disc in such a condition that it is seriously weakened (3.5.1i)

Offside Front coil spring corroded so that its cross sectional area is reduced and seriously weakened (2.4.C.1b)

Offside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

Offside Rear coil spring corroded so that its cross sectional area is reduced and seriously weakened (2.4.C.1b)

Rear Fuel pipe leaking (7.2.3)

Nearside Front Body has slight corrosion (6.1.B.2)

Offside Front Upper Anti-roll bar has slight play in a ball joint (2.4.G.2)

bootlid does not open

has alot of corrsion on the underbody of the vehicle.corrosion does not seriously weaken the affected areas

Pass 26 Aug 2011 250,385 miles

Front Exhaust has part of the system slightly deteriorated (7.1.1a)

Nearside Rear Anti-roll bar linkage has slight play in a ball joint (2.4.G.2)

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

Fail 8 Aug 2011 250,383 miles

Centre Exhaust has a major leak of exhaust gases (7.1.2)

Exhaust emissions hydrocarbon content excessive (7.3.B.1b)

Nearside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

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

Offside Front Front suspension has excessive play in a lower suspension ball joint (2.5.B.1a)

Offside Front Track rod end ball joint has excessive play (2.2.B.1f)

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

Nearside Rear Anti-roll bar linkage has slight play in a ball joint (2.4.G.2)

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

Pass 29 Oct 2010 248,983 miles

Nearside Front Suspension arm has slight play in a pin/bush (2.4.G.2)

Offside Front Lower Suspension arm has slight play in a pin/bush (2.4.G.2)

Pass 16 Oct 2009 234,330 miles

Exhaust has part of the system slightly deteriorated (7.1.1a)

Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

Offside Rear Rear wheel bearing has slight play (2.6.2)

Rear Brake hose slightly deteriorated (3.6.B.4d)

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

Fail 9 Oct 2009 234,330 miles

Nearside Rear Registration plate lamp not working (1.1.5c)

Offside Exhaust mounting missing (7.1.1b)

Offside Rear Fuel system component leaking (7.2.3)

Exhaust has part of the system slightly deteriorated (7.1.1a)

Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

Offside Rear Rear wheel bearing has slight play (2.6.2)

Rear Brake hose slightly deteriorated (3.6.B.4d)

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

Pass 29 Aug 2008 230,435 miles

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

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

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

Pass 31 Aug 2007 224,043 miles

Centre Exhaust has a minor leak of exhaust gases (7.1.2)

Pass 21 Aug 2006 214,089 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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H647 NJM is a 1991 Mercedes-benz 420 in Grey with a 4,196cc petrol engine. This vehicle has been through 21 MOT tests with a personal pass rate of 66.7%.

Across all 1991 Mercedes-benz 420 models, the average MOT pass rate is 74.2% with a typical mileage of 125,557 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 H647 NJM, 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 35 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 H647 NJM?

You can check the full history of H647 NJM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was H647 NJM registered?

H647 NJM is a 1991 Mercedes-benz 420, first registered on 31 December 1991.

Is H647 NJM safe to buy?

The MOT history for H647 NJM 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 H647 NJM 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 H647 NJM. 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.