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KN12 EFM

2012 Mercedes-benz C

Black Diesel 2143cc
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MOT Status

Valid
Expires19 Oct 2026
Tests15 (11 pass, 4 fail)
Pass rate73.3%

Mileage

132,451 mi
Last recorded132,451 miles
Recorded on16 Oct 2025
Typical for 2012 Mercedes-benz C71,143 mi

Significantly above average — investigate

4 checks still locked for this Mercedes-benz
Stolen
Finance
Write-off
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Vehicle Details

RegistrationKN12 EFM
MakeMercedes-benz
ModelC
Year2012
ColourBlack
Fuel typeDiesel
Engine2,143cc

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

11 pass 4 fail
Pass 16 Oct 2025 132,451 miles

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

Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

Fail 14 Oct 2025 132,451 miles

Offside Front Brake pipe excessively corroded (1.1.11 (c))

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

Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

Pass 8 Oct 2024 126,180 miles

Corrosion in rear suspension area

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

Front Brake pad(s) wearing thin Approx. 3mm (1.1.13 (a) (ii))

Front Wheel bearing has slight play Nearside + Offside (5.1.3 (a) (i))

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

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

Pass 20 Oct 2023 120,505 miles

Front Brake pad(s) wearing thin (offside and nearside) (1.1.13 (a) (ii))

Front Wheel bearing has slight play (offside and nearside) (5.1.3 (a) (i))

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Nearside Rear Lower Suspension arm attachment bracket/mounting corroded but its strength is not seriously reduced (front most) onto subframe (5.3.3 (b) (i))

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

Offside Rear Lower Suspension arm attachment bracket/mounting corroded but its strength is not seriously reduced (front most) onto subframe (5.3.3 (b) (i))

Offside Rear low parking brake effort

Rear Brake pad(s) wearing thin offside and nearside (1.1.13 (a) (ii))

Fail 20 Oct 2023 120,505 miles

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

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

Front Brake pad(s) wearing thin (offside and nearside) (1.1.13 (a) (ii))

Front Wheel bearing has slight play (offside and nearside) (5.1.3 (a) (i))

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Nearside Rear Lower Suspension arm attachment bracket/mounting corroded but its strength is not seriously reduced (front most) onto subframe (5.3.3 (b) (i))

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

Offside Rear Lower Suspension arm attachment bracket/mounting corroded but its strength is not seriously reduced (front most) onto subframe (5.3.3 (b) (i))

Offside Rear low parking brake effort

Rear Brake pad(s) wearing thin offside and nearside (1.1.13 (a) (ii))

Pass 5 Oct 2022 115,517 miles

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

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

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

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

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

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

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

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

covers fitted

Pass 16 Sep 2021 112,273 miles

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

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

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

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

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

covers fitted

Pass 7 Sep 2020 108,754 miles

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

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

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

plastic covers fitted

Pass 2 Aug 2019 104,293 miles

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

Pass 17 Jul 2018 90,060 miles

BOTH FRONT TYRES DEFORMED

Pass 16 Jun 2017 71,423 miles
Fail 16 Jun 2017 71,423 miles

Rear registration plate character(s) incorrectly spaced (6.3.4a)

Pass 3 May 2016 52,892 miles
Fail 3 May 2016 52,892 miles

Rear Inner Brake pad(s) less than 1.5 mm thick (3.5.1g)

Front brake disc worn, pitted or scored, but not seriously weakened worn (3.5.1i)

Rear brake disc worn, pitted or scored, but not seriously weakened worn (3.5.1i)

Pass 15 May 2015 32,463 miles

How Reliable is the Mercedes-benz C?

Based on 8,031,355 MOT tests across 683,668 vehicles.

77.6%
Pass Rate
6,412
Miles/Year
32
Year Lifespan
683,668
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 240,078
Suspension arm has excessive play in a ball joint 76,831
Track rod end ball joint has excessive play 67,503
Brake pipe excessively corroded 66,298
coil spring broken 61,560
Full Mercedes-benz C reliability report

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KN12 EFM is a 2012 Mercedes-benz C in Black with a 2,143cc diesel engine. This vehicle has been through 15 MOT tests with a personal pass rate of 73.3%.

Across all 2012 Mercedes-benz C models, the average MOT pass rate is 80.7% with a typical mileage of 71,143 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 C fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 240,078 recorded failures. If you're considering buying KN12 EFM, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz C typically stays on UK roads for around 32 years. At 14 years old, this Mercedes-benz C is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of KN12 EFM?

You can check the full history of KN12 EFM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KN12 EFM registered?

KN12 EFM is a 2012 Mercedes-benz C, first registered on 29 March 2012.

Is KN12 EFM safe to buy?

The MOT history for KN12 EFM shows 15 tests with a 73.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN12 EFM 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 KN12 EFM. 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.