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KN09 UOX

2009 Mercedes-benz B-class

Blue Diesel 1991cc
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MOT Status

Valid
Expires17 Dec 2026
Tests25 (14 pass, 11 fail)
Pass rate56%

Mileage

158,188 mi
Last recorded158,188 miles
Recorded on8 Dec 2025
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 UOX
MakeMercedes-benz
ModelB-class
Year2009
ColourBlue
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

14 pass 11 fail
Pass 8 Dec 2025 158,188 miles

Nearside Obligatory mirror slightly damaged door mirror (3.3 (b) (i))

Fail 5 Dec 2025 158,186 miles

Nearside Front Coil spring fractured or broken (5.3.1 (b) (i))

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

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

Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii)) DANGEROUS

Nearside Rear Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii)) DANGEROUS

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

Nearside Obligatory mirror slightly damaged door mirror (3.3 (b) (i))

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

Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Pass 17 Dec 2024 148,708 miles

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

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

Nearside Obligatory mirror slightly damaged door mirror (3.3 (b) (i))

Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Pass 8 Dec 2023 139,989 miles

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

Rear Brake disc worn, but not excessively (1.1.14 (a) (i))

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

Fail 8 Dec 2023 139,989 miles

Front Brake disc significantly and obviously worn (1.1.14 (a) (i))

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

Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))

Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))

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

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

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

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

Rear Brake disc worn, but not excessively (1.1.14 (a) (i))

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

Pass 13 Dec 2022 125,789 miles

Nearside door mirror broken

Fail 13 Dec 2022 125,788 miles

Front Windscreen washer not working (3.5 (a))

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

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

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

Parking brake efficiency below requirements (1.4.2 (a) (i))

Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

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

Nearside door mirror broken

Pass 10 Dec 2021 117,072 miles

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

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

Fail 10 Dec 2021 117,072 miles

Offside Rear Tyre tread depth below requirements of 1.6mm 205/55/16 (5.2.3 (e)) DANGEROUS

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

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

Pass 10 Dec 2020 108,785 miles
Pass 18 Dec 2019 102,919 miles

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

Nearside Obligatory mirror slightly damaged (3.3 (b) (i))

Fail 17 Dec 2019 102,919 miles

Offside Tyre(s) of different sizes are fitted on the same axle. space saver fitted (5.2.3 (b))

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

Nearside Obligatory mirror slightly damaged (3.3 (b) (i))

Pass 11 Dec 2018 88,927 miles
Fail 11 Dec 2018 88,927 miles

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

Nearside Rear Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b))

Rear Direction indicator incorrect colour (4.4.3 (a))

Pass 4 Dec 2017 78,670 miles
Fail 4 Dec 2017 78,670 miles

Offside Front position lamp(s) not working (1.1.A.3b)

Pass 6 Dec 2016 70,373 miles
Fail 6 Dec 2016 70,372 miles

Nearside Rear Tyre has ply or cords exposed (4.1.D.1b)

Offside Front Lower Suspension arm has excessive play in a ball joint (2.4.G.2)

Offside Headlamp aim too low (1.8)

Pass 4 Dec 2015 62,583 miles

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

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

Fail 1 Dec 2014 53,375 miles

Nearside Front Headlamp not working on dipped beam (1.7.5a)

off side front tyre wearing out side edge

Pass 1 Dec 2014 53,375 miles

off side front tyre wearing out side edge

Pass 2 Oct 2013 42,083 miles
Fail 2 Oct 2013 42,083 miles

Front Brake pad(s) less than 1.5 mm thick (3.5.1g)

Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Offside Front Headlamp not working on dipped beam (1.7.5a)

Pass 18 Sep 2012 34,498 miles
Fail 18 Sep 2012 34,498 miles

Offside Front Tyre has ply or cords exposed (4.1.D.1b) DANGEROUS

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

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 UOX is a 2009 Mercedes-benz B-class in Blue with a 1,991cc diesel engine. This vehicle has been through 25 MOT tests with a personal pass rate of 56%.

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 UOX, 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 UOX?

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

What year was KN09 UOX registered?

KN09 UOX is a 2009 Mercedes-benz B-class, first registered on 28 April 2009.

Is KN09 UOX safe to buy?

The MOT history for KN09 UOX shows 25 tests with a 56% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN09 UOX 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 UOX. 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.