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KN56 GSU

2006 Smart (mcc) Forfour

Black Petrol 1124cc
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MOT Status

Valid
Expires16 Jan 2027
Tests19 (17 pass, 2 fail)
Pass rate89.5%

Mileage

136,800 mi
Last recorded136,800 miles
Recorded on19 Dec 2025
Typical for 2006 Smart (mcc) Forfour64,400 mi

Significantly above average — investigate

4 checks still locked for this Smart (mcc)
Stolen
Finance
Write-off
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Vehicle Details

RegistrationKN56 GSU
MakeSmart (mcc)
ModelForfour
Year2006
ColourBlack
Fuel typePetrol
Engine1,124cc

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

17 pass 2 fail
Pass 19 Dec 2025 136,800 miles

Nearside Front Battery insecure but not likely to fall from carrier (4.13 (a) (i))

Nearside Rear Road wheel slightly distorted (5.2.2 (c) (i))

Fail 18 Dec 2025 136,793 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))

Exhaust carbon monoxide content at idle exceeds manufacturer's specified limits (8.2.1.2 (b))

Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (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 Position lamp not working (4.2.1 (a) (ii))

Nearside Front Battery insecure but not likely to fall from carrier (4.13 (a) (i))

Nearside Rear Road wheel slightly distorted (5.2.2 (c) (i))

Pass 17 Jan 2025 132,483 miles
Pass 23 Feb 2024 132,090 miles
Pass 28 Feb 2023 129,366 miles
Pass 15 Feb 2022 120,145 miles

Front Brake disc worn, but not excessively Front discs slightly lipped (1.1.14 (a) (i))

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

Front Registration plate deteriorated but not likely to be misread Slightly damaged (0.1 (b))

Headlamp lens slightly defective N/S and O/S (4.1.1 (b) (i))

Nearside Front Anti-roll bar linkage ball joint has slight play (5.3.4 (a) (i))

Nearside Front Inner Road wheel slightly distorted (5.2.2 (c) (i))

Nearside Front Windscreen wiper blade defective (3.4 (b) (i))

Nearside Rear Wheel bearing slightly noisy (5.1.3 (b) (i))

Offside Front Anti-roll bar linkage ball joint has slight play (5.3.4 (a) (i))

Offside Rear Wheel bearing slightly noisy (5.1.3 (b) (i))

Rear Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Pass 7 Aug 2020 115,457 miles

Front Anti-roll bar ball joint has slight play both sides (5.3.4 (a) (i))

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

Pass 9 Aug 2019 110,127 miles

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

Pass 17 Jul 2018 102,096 miles

Front Anti-roll bar ball joint has slight play both (5.3.4 (a) (i))

rear handbrake weak

Pass 22 Jul 2017 97,196 miles

Front Anti-roll bar has slight play in a ball joint both (2.4.G.2)

Pass 21 Oct 2016 95,162 miles

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

Pass 26 Oct 2015 87,337 miles
Pass 20 Oct 2014 81,008 miles
Pass 25 Oct 2013 72,258 miles
Pass 1 Nov 2012 64,395 miles
Fail 1 Nov 2012 64,395 miles

Registration plate lamp not working (1.1.C.1d)

Pass 31 Oct 2011 54,554 miles
Pass 22 Oct 2010 43,204 miles

Child seat fitted not allowing full inspection of adult belt

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

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)

Pass 3 Nov 2009 33,271 miles

How Reliable is the Smart (mcc) Forfour?

Based on 256,394 MOT tests across 26,709 vehicles.

78.9%
Pass Rate
4,633
Miles/Year
22
Year Lifespan
26,709
On UK Roads

Top MOT Failure Points

Windscreen wiper does not clear the windscreen effectively 2,304
Tyre tread depth below requirements of 1.6mm 2,283
Registration plate lamp not working 2,059
Brake pad(s) less than 1.5 mm thick 1,676
Full Smart (mcc) Forfour reliability report

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KN56 GSU is a 2006 Smart (mcc) Forfour in Black with a 1,124cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 89.5%.

Across all 2006 Smart (mcc) Forfour models, the average MOT pass rate is 73.3% with a typical mileage of 64,400 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Smart (mcc) Forfour fails its MOT is windscreen wiper does not clear the windscreen effectively, accounting for 2,304 recorded failures. If you're considering buying KN56 GSU, it's worth having these areas checked by a mechanic before committing.

The Smart (mcc) Forfour typically stays on UK roads for around 22 years. At 20 years old, this Smart (mcc) Forfour is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of KN56 GSU?

You can check the full history of KN56 GSU by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KN56 GSU registered?

KN56 GSU is a 2006 Smart (mcc) Forfour, first registered on 15 December 2006.

Is KN56 GSU safe to buy?

The MOT history for KN56 GSU shows 19 tests with a 89.5% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN56 GSU 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 KN56 GSU. 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.