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KN12 JPY

2012 Mercedes-benz R-class

Black Diesel 3495cc
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MOT Status

Valid
Expires3 Aug 2027
Tests17 (11 pass, 6 fail)
Pass rate64.7%

Mileage

223,091 mi
Last recorded223,091 miles
Recorded on4 Aug 2026
Typical for 2012 Mercedes-benz R-class74,385 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

RegistrationKN12 JPY
MakeMercedes-benz
ModelR-class
Year2012
ColourBlack
Fuel typeDiesel
Engine3,495cc

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

11 pass 6 fail
Pass 4 Aug 2026 223,091 miles
Fail 24 Jul 2026 223,087 miles

Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) DANGEROUS

Pass 20 Dec 2024 207,041 miles

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

Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

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

Nearside Rear reflector defective or damaged by up to 50% of the reflecting surface (4.8.1 (a) (i))

Offside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

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

Pass 20 Dec 2023 187,371 miles
Pass 22 Dec 2022 172,012 miles

Nearside Rear Rear reflector defective or damaged by up to 50% of the reflecting surface (4.8.1 (a) (i))

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

Offside Front Power steering pipe/hose has slight seepage (2.1.5 (a))

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

Offside Rear Suspension bellows damaged but not to excess (5.3.5 (b) (i))

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

Pass 1 Dec 2021 162,375 miles

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

Fail 24 Nov 2021 162,371 miles

Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b))

Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))

Offside Front Shock absorbers has a serious fluid leak (5.3.2 (b))

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

Fail 19 Nov 2021 162,357 miles

Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))

Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))

Offside Front Bumper insecure (6.1.4 (a) (i))

Offside Front Shock absorbers has a serious fluid leak (5.3.2 (b))

Rear Exhaust emissions exceed manufacturer's specified limit (8.2.2.2 (a))

Rear Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d))

Suspension system inoperative vehicle sitting on a constant lean to drivers side indicates suspension fault/ not operating correctly. (5.3.5 (a)) DANGEROUS

Nearside Rear Shock absorbers has light misting of oil (5.3.2 (b))

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

Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Offside Front Tyre obviously under inflated inflated because needed to do a decelerator test (5.2.3 (l))

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

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

Pass 18 Nov 2020 155,624 miles

Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Offside Front Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b))

Fail 18 Nov 2020 155,624 miles

Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))

Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))

Offside Headlamp not working on main beam (4.1.1 (a) (ii))

Offside Stop lamp(s) not working (4.3.1 (a) (ii))

Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Offside Front Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b))

Pass 20 May 2019 137,915 miles

Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Fail 9 May 2019 137,660 miles

Central Rear Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b))

Central Rear Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d))

Offside Front Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))

Offside Rear Stop lamp(s) all not working (4.3.1 (a) (iii)) DANGEROUS

Offside Front Outer Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Pass 1 May 2018 124,756 miles

Offside Front Nail in tyre

Offside Front Outer Front constant velocity joint gaiter damaged, but preventing the ingress of dirt (2.5.C.1a)

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

Oil leak oil leak above engine lower tray is quite bad.

Fail 1 May 2018 124,756 miles

Nearside Front Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc (2.5.C.1a)

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

Offside Rear Stop lamp not working (1.2.1b)

Offside Front Nail in tyre

Offside Front Outer Front constant velocity joint gaiter damaged, but preventing the ingress of dirt (2.5.C.1a)

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

Oil leak oil leak above engine lower tray is quite bad.

Pass 21 Mar 2017 105,838 miles
Pass 7 Apr 2016 83,153 miles

Under-trays fitted obscuring some underside components

Engine covers fitted obscuring some components in the engine bay

Offside Front Front constant velocity joint gaiter deteriorated, but preventing the ingress of dirt (2.5.C.1a)

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

Pass 17 Mar 2015 60,383 miles

How Reliable is the Mercedes-benz R-class?

Based on 63,579 MOT tests across 4,470 vehicles.

78.4%
Pass Rate
7,608
Miles/Year
20
Year Lifespan
4,470
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 919
position lamp(s) not working 728
Shock absorber has a serious fluid leak 598
Parking brake: efficiency below requirements 581
Tyre has a cut in excess of the requirements deep enough to reach the ply or cords 407
Full Mercedes-benz R-class reliability report

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KN12 JPY is a 2012 Mercedes-benz R-class in Black with a 3,495cc diesel engine. This vehicle has been through 17 MOT tests with a personal pass rate of 64.7%.

Across all 2012 Mercedes-benz R-class models, the average MOT pass rate is 81.7% with a typical mileage of 74,385 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 R-class fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 919 recorded failures. If you're considering buying KN12 JPY, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz R-class typically stays on UK roads for around 20 years. At 14 years old, this Mercedes-benz R-class is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of KN12 JPY?

You can check the full history of KN12 JPY by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KN12 JPY registered?

KN12 JPY is a 2012 Mercedes-benz R-class, first registered on 16 April 2012.

Is KN12 JPY safe to buy?

The MOT history for KN12 JPY shows 17 tests with a 64.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN12 JPY 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 KN12 JPY. 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.