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KN09 UMK

2009 Mercedes-benz B-class

Black Petrol 1498cc
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MOT Status

Valid
Expires9 Feb 2027
Tests19 (15 pass, 4 fail)
Pass rate78.9%

Mileage

96,754 mi
Last recorded96,754 miles
Recorded on10 Feb 2026
Typical for 2009 Mercedes-benz B-class63,922 mi

Significantly above average — investigate

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

RegistrationKN09 UMK
MakeMercedes-benz
ModelB-class
Year2009
ColourBlack
Fuel typePetrol
Engine1,498cc

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

15 pass 4 fail
Pass 10 Feb 2026 96,754 miles

Front Brake pedal wearing smooth (1.1.2 (c))

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

Fail 10 Feb 2026 96,754 miles

Front Brake pedal wearing smooth (1.1.2 (c))

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

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

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

Rear Bumper likely to become detached (6.1.4 (a) (ii))

Fail 30 Jan 2026 96,676 miles

Front Windscreen washer not working Both Side (3.5 (a))

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 Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Rear Bumper insecure Both Side (6.1.4 (a) (i))

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

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

Offside Front Road wheel slightly distorted (5.2.2 (c) (i))

Offside Front Shock absorbers has light misting of oil (5.3.2 (b))

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

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

Pass 31 Jan 2025 92,433 miles

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

Pass 29 Jan 2024 87,222 miles

Front Brake disc worn, pitted or scored, but not seriously weakened Both Side (1.1.14 (a) (ii))

Front Brake pad(s) wearing thin Both Side (1.1.13 (a) (ii))

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

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

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

Rear Brake pad(s) wearing thin Both Side (1.1.13 (a) (ii))

Fail 29 Jan 2024 87,222 miles

Front Brake disc worn, pitted or scored, but not seriously weakened Both Side (1.1.14 (a) (ii))

Front Brake pad(s) wearing thin Both Side (1.1.13 (a) (ii))

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

Front Windscreen wiper not working Both Side (3.4 (a))

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

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

Rear Brake pad(s) wearing thin Both Side (1.1.13 (a) (ii))

Pass 1 Feb 2023 81,322 miles

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

Pass 11 Jan 2022 76,517 miles
Fail 8 Jan 2022 76,494 miles

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

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

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

Rear Brakes imbalanced across an axle Axle 2 (1.2.1 (b) (i))

Rear Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

Nearside Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Offside Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Pass 4 Jan 2021 191,135 miles

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

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

Nearside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

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

Offside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

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

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

Pass 7 Jan 2020 62,492 miles
Pass 29 Nov 2018 58,558 miles

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

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

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

Pass 21 Dec 2017 55,663 miles
Pass 6 Dec 2016 50,289 miles
Pass 18 Dec 2015 45,093 miles
Pass 23 Dec 2014 37,476 miles
Pass 25 Nov 2013 31,376 miles
Pass 3 Dec 2012 24,672 miles
Pass 6 Dec 2011 18,449 miles

How Reliable is the Mercedes-benz B-class?

Based on 984,871 MOT tests across 77,700 vehicles.

79.4%
Pass Rate
5,590
Miles/Year
21
Year Lifespan
77,700
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 6,159
coil spring broken 5,250
Full Mercedes-benz B-class reliability report

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KN09 UMK is a 2009 Mercedes-benz B-class in Black with a 1,498cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 78.9%.

Across all 2009 Mercedes-benz B-class models, the average MOT pass rate is 76.4% with a typical mileage of 63,922 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Mercedes-benz B-class fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 6,159 recorded failures. If you're considering buying KN09 UMK, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz B-class typically stays on UK roads for around 21 years. At 17 years old, this Mercedes-benz B-class is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of KN09 UMK?

You can check the full history of KN09 UMK by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KN09 UMK registered?

KN09 UMK is a 2009 Mercedes-benz B-class, first registered on 31 March 2009.

Is KN09 UMK safe to buy?

The MOT history for KN09 UMK shows 19 tests with a 78.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN09 UMK 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 KN09 UMK. 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.