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KN09 UMB

2009 Mercedes-benz B-class

Silver Petrol 1498cc
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MOT Status

Valid
Expires21 May 2027
Tests22 (15 pass, 7 fail)
Pass rate68.2%

Mileage

107,579 mi
Last recorded107,579 miles
Recorded on22 May 2026
Typical for 2009 Mercedes-benz B-class63,922 mi

Significantly above average — investigate

4 checks still locked for this Mercedes-benz
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Vehicle Details

RegistrationKN09 UMB
MakeMercedes-benz
ModelB-class
Year2009
ColourSilver
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 7 fail
Pass 22 May 2026 107,579 miles

Brake pipe corroded, covered in grease or other material F/R (1.1.11 (c))

Pass 13 Dec 2024 105,181 miles
Fail 13 Dec 2024 105,181 miles

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

Offside Rear Tyre not fitted in accordance with side wall instructions (5.2.3 (i))

Pass 20 Dec 2023 100,158 miles

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

Fuel Pipe/s corroded

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

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

Nearside Rear Direction indicator slightly discoloured (4.4.3 (a))

Nearside Rear Seat belt buckle slightly damaged (7.1.2 (d))

Offside Front Play in steering rack inner joint(s)

Offside Rear Bumper mountings corroded but not likely to become detached (6.1.4 (a) (i))

Offside Rear Seat Belt Retracting Slowly

Offside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Offside Rear Valve stem slightly damaged (5.2.3 (j))

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

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

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

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Fail 11 Dec 2023 99,973 miles

Nearside Front Side repeater likely to become detached Damaged/Broken Missing Lens (4.4.1 (c) (ii))

Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords Cracked & Perished (5.2.3 (d) (i))

Nearside Rear Tyre(s) with different structures are fitted across the same axle Run Flat (5.2.3 (c))

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

Offside Front Headlamp aim too low (4.1.2 (a))

Offside Front Tyre(s) with different structures are fitted across the same axle Run Flat (5.2.3 (c))

Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

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

Windscreen washer provides insufficient washer liquid (3.5 (a))

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

Fuel Pipe/s corroded

Items removed from driver's view prior to test

Nearside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

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

Nearside Front Headlamp aim too low (4.1.2 (a))

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

Nearside Rear Direction indicator slightly discoloured (4.4.3 (a))

Nearside Rear Seat belt buckle slightly damaged (7.1.2 (d))

Offside Front Headlamp aim too low (4.1.2 (a))

Offside Front Play in steering rack inner joint(s)

Offside Front Tyre worn close to legal limit/worn on edge 3mm (5.2.3 (e))

Offside Rear Bumper mountings corroded but not likely to become detached (6.1.4 (a) (i))

Offside Rear Seat Belt Retracting Slowly

Offside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Offside Rear Valve stem slightly damaged (5.2.3 (j))

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

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

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

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Pass 8 Dec 2022 96,170 miles

Offside Rear Nail in tyre

Front Power steering component has slight seepage from a component (2.1.5 (a))

Fuel Pipe/s corroded

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

Nearside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Offside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

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

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

Offside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Play in steering rack inner joint(s)

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Fail 7 Dec 2022 96,169 miles

Nearside Rear Brake pipe excessively corroded (1.1.11 (c))

Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c))

Windscreen washer not working (3.5 (a))

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

Front Power steering component has slight seepage from a component (2.1.5 (a))

Fuel Pipe/s corroded

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

Nearside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Offside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

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

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

Offside Rear Shock absorbers has slight external damage to the casing (5.3.2 (b))

Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Play in steering rack inner joint(s)

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Pass 22 Dec 2021 90,448 miles

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

Nearside Rear tyre puncture

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Fail 18 Dec 2021 90,403 miles

Front Brakes imbalanced across an axle (1.2.1 (b) (i))

Power steering component leaking (2.1.5 (a))

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

Nearside Rear tyre puncture

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Pass 21 Dec 2020 87,023 miles

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

Nearside Rear Direction indicator slightly discoloured (4.4.3 (a))

Offside Front Play in steering rack inner joint(s)

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

Fail 7 Nov 2019 87,011 miles

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

Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))

Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Nearside Headlamp aim not tested (4.1.2 (b))

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

Nearside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))

Offside Rear Tyre not fitted in accordance with side wall instructions (5.2.3 (i))

Offside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))

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

Offside Play in steering rack inner joint(s)

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

steel wheel fitted to o / s / r

Pass 16 Oct 2018 73,840 miles
Fail 15 Oct 2018 73,838 miles

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

Offside Front Position lamp not working (4.2.1 (a))

Offside Rear Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii)) DANGEROUS

Offside Front Front fog lamp switch not operating in accordance with the requirements (4.5.3 (a) (i))

Pass 29 Sep 2017 63,731 miles

Front wheel alignment requires adjustment

Nearside Front Tyre worn close to the legal limit outside edge (205/55r16) (4.1.E.1)

Pass 12 Sep 2016 56,546 miles

under trays fitted

Pass 10 Sep 2015 51,842 miles
Pass 9 May 2015 49,200 miles
Pass 13 May 2014 38,009 miles
Pass 10 Sep 2013 36,861 miles
Pass 19 Mar 2013 34,326 miles
Fail 19 Mar 2013 34,324 miles

Nearside Headlamp not working on dipped beam (1.7.5a)

Nearside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

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

Pass 24 Mar 2012 27,757 miles

Centre Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

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 UMB is a 2009 Mercedes-benz B-class in Silver with a 1,498cc petrol engine. This vehicle has been through 22 MOT tests with a personal pass rate of 68.2%.

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 UMB, 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 UMB?

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

What year was KN09 UMB registered?

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

Is KN09 UMB safe to buy?

The MOT history for KN09 UMB shows 22 tests with a 68.2% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN09 UMB 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 UMB. 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.