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B21 DSL

2017 Mercedes-benz C

Grey Diesel 2143cc
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MOT Status

Valid
Expires12 Aug 2027
Tests30 (22 pass, 8 fail)
Pass rate73.3%

Mileage

126,453 mi
Last recorded126,453 miles
Recorded on13 Aug 2026
Typical for 2017 Mercedes-benz C45,611 mi

Significantly above average — investigate

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

RegistrationB21 DSL
MakeMercedes-benz
ModelC
Year2017
ColourGrey
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

22 pass 8 fail
Pass 13 Aug 2026 126,453 miles
Fail 10 Aug 2026 126,451 miles

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

Pass 22 Jan 2026 105,546 miles
Pass 17 Nov 2025 126,426 miles

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

Fail 14 Nov 2025 126,424 miles

Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))

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

Pass 23 Jan 2025 103,773 miles
Pass 23 Nov 2024 115,371 miles
Pass 2 Feb 2024 101,295 miles

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

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

Pass 29 Nov 2023 86,484 miles

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

Fail 23 Nov 2023 86,084 miles

Nearside Side repeater not working (4.4.1 (a) (ii))

Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))

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

Pass 7 Feb 2023 98,573 miles

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

Pass 24 Nov 2022 62,780 miles

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

Pass 9 Mar 2022 98,359 miles

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

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

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

Pass 29 Nov 2021 38,739 miles
Pass 20 Jan 2021 88,965 miles

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

Fail 14 Jan 2021 88,959 miles

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

Nearside Front Suspension arm pin or bush excessively worn Front traction control arm (5.3.4 (a) (i))

Nearside Rear Direction indicator incorrect colour (4.4.3 (a))

Offside Front Service brake grabbing severely (1.2.1 (c))

Offside Rear Direction indicator incorrect colour (4.4.3 (a))

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

Offside Front Service brake binding but not excessively (1.2.1 (f))

Pass 7 Nov 2020 29,822 miles
Pass 24 Aug 2019 81,369 miles
Fail 22 Aug 2019 81,369 miles

Rear Exhaust system insecure (6.1.2 (a))

Offside Front Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Pass 15 May 2018 80,996 miles
Pass 3 Nov 2017 75,602 miles
Fail 3 Nov 2017 75,602 miles

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

Offside Front coil spring broken (2.4.C.1a)

Pass 29 Nov 2016 63,514 miles
Pass 4 Aug 2015 51,716 miles

Front Suspension arm has slight play in a ball joint (2.4.G.2)

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

Fail 3 Aug 2015 51,702 miles

Nearside Outer Front Suspension arm has excessive play in a ball joint (2.4.G.2)

Offside Headlamp aim too low (1.8)

Offside Outer Front Suspension arm has excessive play in a ball joint (2.4.G.2)

Engine covers fitted obscuring some components in the engine bay

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

Under-trays fitted obscuring some underside components

exhaust corroded

front tyres wearing on edges and age cracking

sills covered

stone chips in windscreen

Pass 28 Jul 2014 42,534 miles

Child seat fitted not allowing full inspection of adult belt

Engine covers fitted obscuring some components in the engine bay

Under-trays fitted obscuring some underside components

suspect front brake discs to be low, can not see with wheels in situ

Pass 4 Jul 2013 28,641 miles
Pass 4 Jul 2012 24,373 miles
Pass 18 Jul 2011 20,442 miles
Fail 18 Jul 2011 20,442 miles

Nearside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Offside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1)

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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B21 DSL is a 2017 Mercedes-benz C in Grey with a 2,143cc diesel engine. This vehicle has been through 30 MOT tests with a personal pass rate of 73.3%.

Across all 2017 Mercedes-benz C models, the average MOT pass rate is 87.2% with a typical mileage of 45,611 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 B21 DSL, 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 9 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 B21 DSL?

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

What year was B21 DSL registered?

B21 DSL is a 2017 Mercedes-benz C, first registered on 30 November 2017.

Is B21 DSL safe to buy?

The MOT history for B21 DSL shows 30 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 B21 DSL 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 DSL. 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.