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KN54 OKB

2004 Mercedes-benz Slk

Red Petrol 1998cc
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MOT Status

Valid
Expires3 Jun 2027
Tests21 (17 pass, 4 fail)
Pass rate81%

Mileage

131,771 mi
Last recorded131,771 miles
Recorded on29 May 2026
Typical for 2004 Mercedes-benz Slk57,472 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

RegistrationKN54 OKB
MakeMercedes-benz
ModelSlk
Year2004
ColourRed
Fuel typePetrol
Engine1,998cc

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

17 pass 4 fail
Pass 29 May 2026 131,771 miles
Pass 4 Jun 2025 130,267 miles

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

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

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

Fail 30 May 2025 130,267 miles

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

Rear Exhaust system insecure (6.1.2 (a))

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

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

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

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

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

Pass 3 Jun 2024 128,100 miles
Pass 1 Jun 2023 126,594 miles
Pass 5 May 2022 125,155 miles

Nearside Front Steering rack gaiter damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Pass 25 Nov 2020 120,841 miles

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

Pass 16 Oct 2019 117,678 miles
Pass 17 Oct 2018 114,208 miles
Pass 11 Oct 2017 110,349 miles
Pass 19 Oct 2016 105,482 miles

Nearside Front Front suspension has slight play in a lower suspension ball joint (2.5.B.1a)

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)

Pass 20 Oct 2015 101,988 miles
Pass 21 Oct 2014 97,189 miles
Fail 20 Oct 2014

Nearside Rear Brake pipe excessively corroded (3.6.B.2c)

Offside Rear Brake pipe excessively corroded (3.6.B.2c)

Pass 21 Oct 2013 89,575 miles

Engine covers fitted obscuring some components in the engine bay

Nearside Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Play in steering rack inner joint(s)

Steering system has slight free play detected at steering wheel (2.2.A.1b)

Under-trays fitted obscuring some underside components

nearside front tyre is badly worn on the outer edge

Fail 15 Oct 2013 89,575 miles

Electronic stability system warning lamp indicates a fault (3.4.1c)

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

Nearside Rear Direction indicator incorrect colour (1.4.A.2f)

Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2)

Offside Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)

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

Offside Rear Direction indicator incorrect colour (1.4.A.2f)

Offside Rear Exhaust system not adequately supported (7.1.1)

Offside rear parking brake recording little or no effort (3.7.B.6a)

Parking brake lever has no reserve travel (3.1.6b)

Engine covers fitted obscuring some components in the engine bay

Nearside Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)

Play in steering rack inner joint(s)

Steering system has slight free play detected at steering wheel (2.2.A.1b)

Under-trays fitted obscuring some underside components

nearside front tyre is badly worn on the outer edge

Pass 5 Oct 2012 83,350 miles

Engine covers fitted obscuring some components in the engine bay

Nearside Brake pipe slightly corroded (3.6.B.2c)

Offside Front Lower Suspension arm ball joint dust cover damaged, but preventing the ingress of dirt (2.4.G.2)

Play in steering rack inner joint(s)

Under-trays fitted obscuring some underside components

Fail 2 Aug 2011 73,608 miles

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

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

Pass 2 Aug 2011 73,608 miles
Pass 18 Mar 2010 62,460 miles
Pass 22 Oct 2008 50,348 miles

all tyres are starting to perish and are worn low on inner and outer edges

offside rear exhaust pipe cracked at joint

How Reliable is the Mercedes-benz Slk?

Based on 1,335,553 MOT tests across 81,472 vehicles.

80.0%
Pass Rate
3,226
Miles/Year
29
Year Lifespan
81,472
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 28,060
coil spring broken 11,334
Stop lamp not working 8,797
Brake pipe excessively corroded 8,610
Tyre has ply or cords exposed 8,088
Full Mercedes-benz Slk reliability report

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KN54 OKB is a 2004 Mercedes-benz Slk in Red with a 1,998cc petrol engine. This vehicle has been through 21 MOT tests with a personal pass rate of 81%.

Across all 2004 Mercedes-benz Slk models, the average MOT pass rate is 78.0% with a typical mileage of 57,472 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Mercedes-benz Slk fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 28,060 recorded failures. If you're considering buying KN54 OKB, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz Slk typically stays on UK roads for around 29 years. At 22 years old, this Mercedes-benz Slk is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of KN54 OKB?

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

What year was KN54 OKB registered?

KN54 OKB is a 2004 Mercedes-benz Slk, first registered on 21 October 2004.

Is KN54 OKB safe to buy?

The MOT history for KN54 OKB shows 21 tests with a 81% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KN54 OKB 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 OKB. 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.