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FN54 MJJ

2004 Mercedes-benz Slk

Silver Petrol 1998cc
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MOT Status

Valid
Expires21 Nov 2026
Tests24 (18 pass, 6 fail)
Pass rate75%

Mileage

108,135 mi
Last recorded108,135 miles
Recorded on22 Nov 2025
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
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Vehicle Details

RegistrationFN54 MJJ
MakeMercedes-benz
ModelSlk
Year2004
ColourSilver
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

18 pass 6 fail
Pass 22 Nov 2025 108,135 miles

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 15 Nov 2025 108,106 miles

Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt front arm (5.3.4 (b) (ii))

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 20 Nov 2024 102,072 miles

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

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

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

Fail 20 Nov 2024 102,072 miles

Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Nearside Front Suspension arm pin or bush excessively worn Rear arm. (5.3.4 (a) (i))

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

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

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

Pass 6 Oct 2023 98,283 miles
Pass 9 Aug 2022 97,615 miles

Rear Suspension arm pin or bush worn but not resulting in excessive movement Both sides (5.3.4 (a) (i))

Fail 2 Aug 2022 97,611 miles

Nearside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i))

Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i))

Offside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i))

Offside Rear Subframe mounting prescribed area excessively corroded significantly reducing structural strength Marked in yellow (5.3.6 (a) (i))

Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i))

Rear Exhaust system insecure (6.1.2 (a))

Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) DANGEROUS

Rear Suspension arm pin or bush worn but not resulting in excessive movement Both sides (5.3.4 (a) (i))

Pass 4 Aug 2021 95,110 miles

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

Fail 23 Jul 2021 95,108 miles

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

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

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

Pass 10 Mar 2020 93,572 miles
Pass 9 Nov 2018 91,067 miles

Front Brake disc worn, but not excessively both (1.1.14 (a) (i))

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

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

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

hand brake travel

Fail 7 Nov 2018 91,049 miles

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

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

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

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

Pass 15 Aug 2017 77,862 miles

park brake has long travel

Pass 9 Aug 2016 75,361 miles
Pass 13 Aug 2015 72,858 miles

Nearside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Pass 19 Aug 2014 70,634 miles
Pass 29 Aug 2013 69,052 miles
Pass 22 Oct 2012 67,455 miles
Pass 11 Oct 2011 65,674 miles
Pass 19 Oct 2010 60,542 miles

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

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

Pass 16 Sep 2009 49,588 miles

front cross strut bushes delaminating

Pass 11 Oct 2008 40,456 miles
Fail 10 Oct 2008 40,455 miles

Offside Rear coil spring cracked (2.4.C.1a) DANGEROUS

Pass 5 Sep 2007 27,873 miles

Gear box oil leak from pilot bushing

N/S/F tyre worn low on inner edge

Nearside Front Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Front Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

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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FN54 MJJ is a 2004 Mercedes-benz Slk in Silver with a 1,998cc petrol engine. This vehicle has been through 24 MOT tests with a personal pass rate of 75%.

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 a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

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 FN54 MJJ, 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 FN54 MJJ?

You can check the full history of FN54 MJJ by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was FN54 MJJ registered?

FN54 MJJ is a 2004 Mercedes-benz Slk, first registered on 1 September 2004.

Is FN54 MJJ safe to buy?

The MOT history for FN54 MJJ shows 24 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does FN54 MJJ 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 FN54 MJJ. 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.