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KN54 BNF

2004 Mercedes-benz C

Blue Diesel 2148cc
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MOT Status

Expired
Expires14 Mar 2026
Tests29 (18 pass, 11 fail)
Pass rate62.1%

Mileage

139,261 mi
Last recorded139,261 miles
Recorded on15 Mar 2025
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

RegistrationKN54 BNF
MakeMercedes-benz
ModelC
Year2004
ColourBlue
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

18 pass 11 fail
Pass 15 Mar 2025 139,261 miles

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

Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement front control arm bush (5.3.4 (a) (i))

Nearside Front Tyre worn close to legal limit/worn on edge close to limit and worn outer edge (5.2.3 (e))

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

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

Offside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement font control arm bush (5.3.4 (a) (i))

Offside Front Track rod end ball joint has slight play (2.1.3 (b) (i))

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

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

Fail 14 Mar 2025 139,261 miles

Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))

Exhaust system insecure front clamp missing (6.1.2 (a))

Front Exhaust has a major leak of exhaust gases front pipe clamp missing (6.1.2 (a))

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

Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement front control arm bush (5.3.4 (a) (i))

Nearside Front Tyre worn close to legal limit/worn on edge close to limit and worn outer edge (5.2.3 (e))

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

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

Offside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement font control arm bush (5.3.4 (a) (i))

Offside Front Track rod end ball joint has slight play (2.1.3 (b) (i))

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

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

Fail 17 Feb 2025 139,233 miles

Front Exhaust has a major leak of exhaust gases (6.1.2 (a))

Front Exhaust system insecure (6.1.2 (a))

Nearside Front Service brake excessively fluctuating (1.2.1 (e))

Nearside Headlamp aim too high (4.1.2 (a))

Nearside Rear Seat belt anchorage prescribed area strength or continuity significantly reduced Outer sill (7.1.1 (a) (i))

Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))

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

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

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

Offside Front Track rod end ball joint has slight play (2.1.3 (b) (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 Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

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

Rear Direction indicator slightly discoloured (4.4.3 (a))

Pass 29 Feb 2024 134,983 miles

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

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

Fail 28 Feb 2024 134,980 miles

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

Rear Exhaust has a major leak of exhaust gases (6.1.2 (a))

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

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

Fail 25 Jan 2024 134,378 miles

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

Nearside Front Outer Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i))

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

Rear Exhaust has a major leak of exhaust gases (6.1.2 (a))

ENGINE CHECK LIGHT ON

Pass 14 Feb 2023 132,155 miles
Pass 21 Jan 2022 128,893 miles
Fail 21 Jan 2022 128,893 miles

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

Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))

Pass 3 Jul 2020 123,155 miles
Pass 13 Dec 2018 117,614 miles
Pass 9 Nov 2017 114,010 miles

Advise o/s front tyre slight deterioration to rubber

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

Nearside Front coil spring corroded (2.4.C.1b)

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

Offside Front coil spring corroded (2.4.C.1b)

Rear Anti-roll bar corroded but not seriously weakened (2.4.G.1)

Fail 7 Nov 2017 113,985 miles

Offside Front suspension has excessive play in a track control arm inner bush (2.5.B.2b)

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

Offside front brake excessively fluctuating (3.7.B.3)

Advise o/s front tyre slight deterioration to rubber

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

Nearside Front coil spring corroded (2.4.C.1b)

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

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

Offside Front coil spring corroded (2.4.C.1b)

Rear Anti-roll bar corroded but not seriously weakened (2.4.G.1)

Pass 17 Nov 2016 109,071 miles

Offside Front front brake fluctuating, but not excessively (3.7.B.3)

Fail 16 Nov 2016 109,071 miles

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

Offside Front Front suspension has excessive play in a track control arm inner bush (2.5.B.2b)

Rear Exhaust has a major leak of exhaust gases (7.1.2)

Offside Front front brake fluctuating, but not excessively (3.7.B.3)

Pass 11 Nov 2015 104,288 miles
Pass 10 Oct 2014 100,029 miles
Pass 29 Nov 2013 96,719 miles

front tyres worn close to limit

Fail 28 Nov 2013 96,719 miles

Nearside Front Front wheel bearing has excessive play (2.5.A.3c)

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

Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush (2.4.G.2)

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

Offside Front Track rod end ball joint has excessive play (2.2.B.1f)

Offside Rear Anti-roll bar linkage has excessive play in a pin/bush (2.4.G.2)

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

front tyres worn close to limit

Pass 26 Oct 2012 88,693 miles
Fail 26 Oct 2012 88,693 miles

Offside Headlamp not working on dipped beam (1.7.5a)

Pass 24 Oct 2011 79,610 miles
Fail 24 Oct 2011 79,608 miles

Fuel system component leaking (7.2.3)

Pass 22 Oct 2010 70,639 miles
Fail 22 Oct 2010 70,636 miles

Brakes imbalanced across an axle (3.7.B.5b)

Nearside Rear coil spring fractured (2.4.C.1a)

Offside Rear coil spring fractured (2.4.C.1a)

Offside front brake recording little or no effort (3.7.B.5a)

front brake application uneven (3.7.B.2)

Pass 16 Oct 2009 62,500 miles
Pass 16 Oct 2008 53,622 miles
Pass 20 Oct 2007 44,414 miles
Pass 12 Sep 2007 44,386 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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KN54 BNF is a 2004 Mercedes-benz C in Blue with a 2,148cc diesel engine. This vehicle has been through 29 MOT tests with a personal pass rate of 62.1%.

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 KN54 BNF, 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 KN54 BNF?

You can check the full history of KN54 BNF by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KN54 BNF registered?

KN54 BNF is a 2004 Mercedes-benz C, first registered on 29 September 2004.

Is KN54 BNF safe to buy?

The MOT history for KN54 BNF shows 29 tests with a 62.1% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN54 BNF 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 KN54 BNF. 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.