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KN09 UOM

2009 Mercedes-benz B-class

Black Diesel 1991cc
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MOT Status

Valid
Expires15 Feb 2027
Tests19 (15 pass, 4 fail)
Pass rate78.9%

Mileage

99,217 mi
Last recorded99,217 miles
Recorded on16 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 UOM
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

15 pass 4 fail
Pass 16 Feb 2026 99,217 miles

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

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

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

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

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Play in steering rack inner joint(s) ()

Rear Suspension component corroded but not seriously weakened Axle (5.3.3 (b) (i))

Fail 16 Feb 2026 99,217 miles

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

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

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

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

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

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Play in steering rack inner joint(s) ()

Rear Suspension component corroded but not seriously weakened Axle (5.3.3 (b) (i))

Pass 13 Mar 2025 92,842 miles

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

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

Rear Suspension component corroded but not seriously weakened Axle (5.3.3 (b) (i))

Pass 13 Mar 2024 88,112 miles

Brake wear indicator illuminated

Offside Rear Brake pipe inadequately clipped or supported (1.1.11 (d) (i))

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

Under-trays fitted obscuring some underside components

Fail 6 Mar 2024 88,082 miles

Service brake efficiency below requirements (1.2.2 (a) (i))

Brake wear indicator illuminated

Offside Rear Brake pipe inadequately clipped or supported (1.1.11 (d) (i))

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

Under-trays fitted obscuring some underside components

Pass 23 Mar 2023 80,788 miles

Offside Rear Nail in tyre ()

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

Rear Fuel Pipe/s corroded from filler neck to tank ()

Fail 18 Mar 2023 80,579 miles

Exhaust emissions exceed manufacturer's specified limit limit 1.2 (8.2.2.2 (a))

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

Nearside Side repeater light intensity significantly reduced (4.4.3 (a))

Offside Rear Nail in tyre ()

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

Rear Fuel Pipe/s corroded from filler neck to tank ()

Pass 24 Mar 2022 73,475 miles
Fail 11 Mar 2022 73,254 miles

Exhaust emissions exceed manufacturer's specified limit 1.2 (8.2.2.2 (a))

Offside Headlamp has a product on the light source so that the light output is severely reduced (4.1.4 (b))

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

Pass 18 Mar 2021 69,769 miles
Pass 18 Mar 2020 68,588 miles

Offside Side repeater slightly discoloured (4.4.3 (a))

Pass 14 Mar 2019 63,769 miles

Offside Headlamp has a product on the light source but not seriously reducing light output (4.1.4 (b))

Pass 12 Mar 2018 58,755 miles

Nearside Front Suspension arm has slight play in a ball joint (2.4.G.2)

Pass 13 Mar 2017 54,525 miles
Pass 10 Mar 2016 49,961 miles
Pass 18 Mar 2015 44,365 miles

Engine covers fitted obscuring some components in the engine bay

Under-trays fitted obscuring some underside components

Pass 20 Mar 2014 37,132 miles

Engine covers fitted obscuring some components in the engine bay

Under-trays fitted obscuring some underside components

Pass 7 Mar 2013 31,075 miles
Pass 20 Mar 2012 25,259 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 UOM is a 2009 Mercedes-benz B-class in Black with a 1,991cc diesel 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 UOM, 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 UOM?

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

What year was KN09 UOM registered?

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

Is KN09 UOM safe to buy?

The MOT history for KN09 UOM 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 UOM 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 UOM. 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.