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KN09 UJX

2009 Mercedes-benz B-class

Black Diesel 1991cc
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MOT Status

Expired
Expires24 Aug 2026
Tests16 (12 pass, 4 fail)
Pass rate75%

Mileage

107,313 mi
Last recorded107,313 miles
Recorded on9 Sep 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 UJX
MakeMercedes-benz
ModelB-class
Year2009
ColourBlack
Fuel typeDiesel
Engine1,991cc

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

12 pass 4 fail
Fail 9 Sep 2026 107,313 miles

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

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

Nearside Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))

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

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

Offside Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))

Pass 25 Aug 2025 103,617 miles

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

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

Fail 22 Aug 2025 103,552 miles

Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))

Offside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

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

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

engine lower tray insecure

Pass 23 Jul 2024 100,769 miles
Pass 4 Aug 2023 98,160 miles
Pass 15 Jul 2022 93,919 miles

Nearside Front Service brake binding but not excessively (1.2.1 (f))

Nearside Rear Child Seat fitted not allowing full inspection of adult belt

Offside Front Service brake binding but not excessively (1.2.1 (f))

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

undertray damaged

Fail 16 May 2022 93,851 miles

Nearside Obligatory mirror insecure (3.3 (b) (ii))

Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))

Nearside Side repeater not working (4.4.1 (a) (ii))

Offside Rear Direction indicator incorrect colour showing white light (4.4.3 (a))

Nearside Rear Child Seat fitted not allowing full inspection of adult belt

Offside Front Service brake binding but not excessively (1.2.1 (f))

Offside Play in steering rack inner joint(s)

Pass 12 May 2021 90,405 miles

Nearside Front Non obligatory mirror damaged

Offside Rear Child Seat fitted not allowing full inspection of adult belt

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

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

Fail 11 May 2021 90,404 miles

Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f))

Front Headlamp aim too high both sides (4.1.2 (a))

Nearside Front Side repeater not working (4.4.1 (a) (ii))

Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))

Nearside Front Non obligatory mirror damaged

Offside Rear Child Seat fitted not allowing full inspection of adult belt

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

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

Pass 18 Jun 2019 79,866 miles
Pass 28 Dec 2017 68,220 miles

Child Seat fitted not allowing full inspection of adult belt

hand brake leaver too high required adjustment or repair

Pass 9 Aug 2016 59,966 miles
Pass 14 Jul 2015 54,276 miles
Pass 27 Jun 2014 46,395 miles

o/s/r tyre wearing on inner edge

Pass 11 Jul 2013 38,083 miles

n/s/r tyre poor condition/perished on outer sidewall

Pass 23 Jul 2012 27,569 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)

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 UJX is a 2009 Mercedes-benz B-class in Black with a 1,991cc diesel engine. This vehicle has been through 16 MOT tests with a personal pass rate of 75%.

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 a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

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 UJX, 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 UJX?

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

What year was KN09 UJX registered?

KN09 UJX is a 2009 Mercedes-benz B-class, first registered on 23 April 2009.

Is KN09 UJX safe to buy?

The MOT history for KN09 UJX shows 16 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN09 UJX 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 UJX. 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.