CarVerify

Free Car Check

KW09 BYY

2009 Mercedes-benz B-class

Blue Petrol 1498cc
Search another vehicle

MOT Status

Valid
Expires5 Jan 2027
Tests19 (14 pass, 5 fail)
Pass rate73.7%

Mileage

65,699 mi
Last recorded65,699 miles
Recorded on17 Dec 2025
Typical for 2009 Mercedes-benz B-class63,922 mi

Below or average mileage for this year

4 checks still locked for this Mercedes-benz
Stolen
Finance
Write-off
Keepers
Unlock full report — £4.99
Instant £30k guarantee
or single check £14.99

Not all car check providers offer a guarantee. Don't risk buying from services that can't back their data. CarVerify reports include a £30,000 finance data guarantee.

Vehicle Details

RegistrationKW09 BYY
MakeMercedes-benz
ModelB-class
Year2009
ColourBlue
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

14 pass 5 fail
Pass 17 Dec 2025 65,699 miles

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

Rear Direction indicator slightly discoloured both sides (4.4.3 (a))

Fail 17 Dec 2025 65,695 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 Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Offside Front Windscreen wiper blade missing (3.4 (b) (ii))

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

Rear Direction indicator slightly discoloured both sides (4.4.3 (a))

Pass 6 Jan 2025 62,020 miles

Rear Direction indicator slightly discoloured both rear (4.4.3 (a))

Fail 6 Jan 2025 62,020 miles

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

Rear Direction indicator slightly discoloured both rear (4.4.3 (a))

Pass 2 Jan 2024 58,288 miles

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

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

Offside Rear Nail in tyre ()

Pass 22 Dec 2022 55,463 miles

Nearside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Offside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Fail 22 Dec 2022 55,459 miles

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

Nearside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Offside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Pass 4 Jan 2022 52,533 miles

Fuel filler pipe and breather corroded

Handbrake travel close to fail

Fail 4 Jan 2022 52,531 miles

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

Fuel filler pipe and breather corroded

Handbrake travel close to fail

Pass 5 Jan 2021 50,610 miles

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

Pass 24 Sep 2019 47,546 miles
Pass 25 Sep 2018 44,116 miles
Pass 28 Sep 2017 39,519 miles

Front registration plate deteriorated but not likely to be misread (6.3.1d)

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

Nearside Rear Shock absorber has a light misting of oil (2.7.3)

Pass 29 Sep 2016 35,328 miles

Front registration plate deteriorated but not likely to be misread (6.3.1d)

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

n/s-o/s outer sill covers fitted

under covers fitted

Fail 29 Sep 2016 35,328 miles

Front registration plate deteriorated but not likely to be misread (6.3.1d)

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

Offside Headlamp not working on dipped beam (1.7.5a)

n/s-o/s outer sill covers fitted

under covers fitted

Pass 7 Sep 2015 31,822 miles

n/s-o/s outer sill covers fitted

under covers fitted

Pass 7 Jul 2014 29,200 miles
Pass 19 Jul 2013 25,026 miles

Nail in nearside rear tyre

both rear tyres inner & outer sidewalls cracking

service light on

Pass 30 Jun 2012 21,272 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

Don't risk it. Know before you buy.

Not all vehicle check providers are the same. Some don't offer a data guarantee, which means if their information is wrong, you're on your own. Every CarVerify report is backed by a £30,000 finance data guarantee.

£30k guarantee Instant results Cancel anytime

KW09 BYY is a 2009 Mercedes-benz B-class in Blue with a 1,498cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 73.7%.

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 KW09 BYY, 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 KW09 BYY?

You can check the full history of KW09 BYY by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KW09 BYY registered?

KW09 BYY is a 2009 Mercedes-benz B-class, first registered on 30 July 2009.

Is KW09 BYY safe to buy?

The MOT history for KW09 BYY shows 19 tests with a 73.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KW09 BYY 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 KW09 BYY. 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.