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B21 UMM

2016 Smart (mcc) Forfour

White Petrol 898cc
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MOT Status

Valid
Expires4 Nov 2026
Tests10 (7 pass, 3 fail)
Pass rate70%

Mileage

85,357 mi
Last recorded85,357 miles
Recorded on5 Nov 2025
Typical for 2016 Smart (mcc) Forfour32,362 mi

Significantly above average — investigate

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

RegistrationB21 UMM
MakeSmart (mcc)
ModelForfour
Year2016
ColourWhite
Fuel typePetrol
Engine898cc

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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

7 pass 3 fail
Pass 5 Nov 2025 85,357 miles
Pass 11 Dec 2024 81,676 miles

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

Pass 10 Jan 2024 75,696 miles
Fail 8 Jan 2024 75,695 miles

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

Pass 9 Jan 2023 69,342 miles
Pass 8 Jan 2022 60,952 miles
Fail 6 Jan 2022 60,952 miles

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

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

Pass 2 Nov 2020 48,073 miles
Fail 2 Nov 2020 48,073 miles

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

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

Offside Rear Registration plate lamp does not illuminate simultaneously with the position lamps (4.7.2 (a))

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

Front Brakes imbalanced across an axle by more than 50% Axle 1 (1.2.1 (b) (ii)) DANGEROUS

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

Pass 4 Nov 2019 35,676 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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B21 UMM is a 2016 Smart (mcc) Forfour in White with a 898cc petrol engine. This vehicle has been through 10 MOT tests with a personal pass rate of 70%.

Across all 2016 Smart (mcc) Forfour models, the average MOT pass rate is 81.3% with a typical mileage of 32,362 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 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 B21 UMM, 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 10 years old, this Smart (mcc) Forfour is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of B21 UMM?

You can check the full history of B21 UMM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was B21 UMM registered?

B21 UMM is a 2016 Smart (mcc) Forfour, first registered on 26 September 2016.

Is B21 UMM safe to buy?

The MOT history for B21 UMM shows 10 tests with a 70% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does B21 UMM 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 B21 UMM. 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.