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BN04 CNU

2004 Mercedes-benz C

Black Diesel 2148cc
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MOT Status

Valid
Expires18 Aug 2027
Tests28 (19 pass, 9 fail)
Pass rate67.9%

Mileage

167,769 mi
Last recorded167,769 miles
Recorded on3 Aug 2026
Typical for 2004 Mercedes-benz C82,457 mi

Significantly above average — investigate

4 checks still locked for this Mercedes-benz
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Vehicle Details

RegistrationBN04 CNU
MakeMercedes-benz
ModelC
Year2004
ColourBlack
Fuel typeDiesel
Engine2,148cc

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

19 pass 9 fail
Pass 3 Aug 2026 167,769 miles

Brake hydraulic reservoir close to minimum mark (1.1.10 (d) (i))

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

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

Nearside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i))

Nearside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

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

Offside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i))

Offside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

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

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

rear fuel pipe fittings corroded but not seriously weakened

Fail 20 Jul 2026 167,646 miles

Nearside Rear Suspension arm corroded and seriously weakened (5.3.3 (b) (i))

Brake hydraulic reservoir close to minimum mark (1.1.10 (d) (i))

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

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

Nearside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i))

Nearside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

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

Offside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i))

Offside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

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

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

rear fuel pipe fittings corroded but not seriously weakened

Pass 11 Aug 2025 165,819 miles

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

Nearside Front Lower Suspension arm ball joint has slight play rear (5.3.4 (a) (i))

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

Nearside Rear 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 Service brake binding but not excessively (1.2.1 (f))

Oil leak, but not excessive (8.4.1 (a) (i))

Play in steering rack inner joint(s)

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Rear suspension components rusty

Fail 30 Jul 2025 165,819 miles

Fuel system component leaking (6.1.3 (b) (i))

Nearside Front Road wheel fractured (5.2.2 (a)) DANGEROUS

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

Nearside Front Direction indicator slightly discoloured (4.4.3 (a))

Nearside Front Lower Suspension arm ball joint has slight play rear (5.3.4 (a) (i))

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

Nearside Rear 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 Service brake binding but not excessively (1.2.1 (f))

Offside Rear Tyre obviously under inflated (5.2.3 (l))

Oil leak, but not excessive (8.4.1 (a) (i))

Play in steering rack inner joint(s)

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Rear suspension components rusty

Pass 12 Aug 2024 161,122 miles

Nearside Brake pipe corroded, covered in grease or other material front to back x2 (1.1.11 (c))

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

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

Nearside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

Nearside Rear fuel pipe rusty

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

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

Offside Rear Inner Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

Offside Rear Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

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

Oil leak, but not excessive (8.4.1 (a) (i))

Rear suspension components getting rusty

Pass 11 Aug 2023 157,301 miles

Nearside Front Service brake fluctuating, but not excessively (1.2.1 (e))

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

Offside Rear Tyre slightly damaged (5.2.3 (d) (ii))

Oil leak, but not excessive (8.4.1 (a) (i))

Rear Fuel Pipe/s corroded

Fail 10 Aug 2023 157,296 miles

Exhaust emissions exceed manufacturer's specified limit (8.2.2.2 (a))

Front Headlamp levelling device inoperative level sensor (4.1.5 (a))

Nearside Brake pipe excessively corroded Front to rear (1.1.11 (c))

Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Offside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

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

Nearside Front Service brake fluctuating, but not excessively (1.2.1 (e))

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

Offside Rear Tyre slightly damaged (5.2.3 (d) (ii))

Oil leak, but not excessive (8.4.1 (a) (i))

Rear Fuel Pipe/s corroded

Pass 11 Aug 2022 152,790 miles

Nearside Brake pipe corroded, covered in grease or other material front to back (1.1.11 (c))

Nearside Front Tyre slightly damaged sidewall (5.2.3 (d) (ii))

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

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

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

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

Rear Fuel hose deteriorated ferruls by fuel tank (6.1.3 (c) (ii))

Fail 9 Aug 2022 152,790 miles

Nearside Front Lower Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Rear Brakes imbalanced across an axle Axle 2 (1.2.1 (b) (i))

Nearside Brake pipe corroded, covered in grease or other material front to back (1.1.11 (c))

Nearside Front Tyre slightly damaged sidewall (5.2.3 (d) (ii))

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

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

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

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

Rear Fuel hose deteriorated ferruls by fuel tank (6.1.3 (c) (ii))

Pass 2 Aug 2021 145,944 miles

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

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

Nearside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

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

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

Offside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

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

Fail 2 Aug 2021 145,941 miles

Nearside Front Position lamp not working (4.2.1 (a) (ii))

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

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

Offside Headlamp aim too high (4.1.2 (a))

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

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

Nearside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

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

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

Offside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

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

Pass 19 Aug 2020 138,806 miles

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

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

Pass 13 Nov 2019 137,518 miles

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

Pass 22 Oct 2018 127,968 miles

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

Fail 22 Oct 2018 127,966 miles

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 Lower Suspension arm pin or bush excessively worn front arm (5.3.4 (a) (i))

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

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

Pass 30 Oct 2017 118,685 miles
Fail 30 Oct 2017 118,685 miles

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

Pass 14 Nov 2016 108,645 miles
Pass 7 Nov 2015 97,730 miles
Pass 8 Oct 2014 86,014 miles

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)

Offside Rear Tyre worn close to the legal limit (4.1.E.1)

Pass 15 Oct 2013 76,245 miles
Pass 27 Jun 2013 74,255 miles

Engine covers fitted obscuring some components in the engine bay

Offside Front Anti-roll bar linkage ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Under-trays fitted obscuring some underside components

Fail 26 Jun 2013 74,255 miles

Nearside Rear Tyre has a bulge, caused by separation or partial failure of its structure (4.1.D.1b)

Supplementary Restraint System warning lamp indicates a fault (5.4.2)

Engine covers fitted obscuring some components in the engine bay

Offside Front Anti-roll bar linkage ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Under-trays fitted obscuring some underside components

Pass 19 Jun 2012 69,248 miles

Offside Headlamp damaged but light output not reduced (1.7.5a)

Pass 3 Jun 2011 63,256 miles
Pass 4 Jun 2010 56,215 miles
Pass 13 May 2009 49,478 miles
Fail 12 May 2009 49,478 miles

Nearside Front brake disc excessively pitted (3.5.1h)

Offside Front brake disc excessively pitted (3.5.1h)

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

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

BN04 CNU is a 2004 Mercedes-benz C in Black with a 2,148cc diesel engine. This vehicle has been through 28 MOT tests with a personal pass rate of 67.9%.

Across all 2004 Mercedes-benz C models, the average MOT pass rate is 72.2% with a typical mileage of 82,457 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 BN04 CNU, 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 22 years old, this Mercedes-benz C is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of BN04 CNU?

You can check the full history of BN04 CNU by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was BN04 CNU registered?

BN04 CNU is a 2004 Mercedes-benz C, first registered on 31 March 2004.

Is BN04 CNU safe to buy?

The MOT history for BN04 CNU shows 28 tests with a 67.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does BN04 CNU 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 BN04 CNU. 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.