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J21 BYE

2004 Mercedes-benz Slk

Black Petrol 1798cc
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MOT Status

Expired
Expires18 May 2026
Tests24 (18 pass, 6 fail)
Pass rate75%

Mileage

102,048 mi
Last recorded102,048 miles
Recorded on19 May 2025
Typical for 2004 Mercedes-benz Slk57,472 mi

Significantly above average — investigate

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

RegistrationJ21 BYE
MakeMercedes-benz
ModelSlk
Year2004
ColourBlack
Fuel typePetrol
Engine1,798cc

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 19 May 2025 102,048 miles

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

Suspension componets,front and rear subframe corroded

Pass 10 May 2024 100,498 miles

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

Suspension components corroded

Pass 11 May 2023 98,153 miles

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

Suspension components slighty corroded

Fail 9 May 2023 98,156 miles

Headlamp has a product on the lens so that the light output is severely reduced both side (4.1.4 (b))

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

Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) DANGEROUS

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

Suspension components slighty corroded

Pass 6 May 2022 94,442 miles
Pass 27 Apr 2021 89,497 miles
Pass 11 May 2020 84,716 miles

plastic under trays fitted can not view some components

Fail 11 May 2020 84,713 miles

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

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 5 Mar 2019 80,745 miles

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

Nearside Headlamp lens slightly defective (4.1.1 (b) (i))

Offside Headlamp lens slightly defective (4.1.1 (b) (i))

Pass 7 Mar 2018 75,698 miles
Pass 24 Feb 2017 68,442 miles
Pass 27 Feb 2016 63,143 miles
Pass 19 Feb 2015 58,731 miles
Fail 18 Feb 2015 58,731 miles

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

n/s/r tyre on limits

Pass 12 Mar 2014 54,297 miles

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

Offside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Under-trays fitted obscuring some underside components

Fail 11 Mar 2014 54,285 miles

Centre Stop lamp not working (1.2.1b)

Front registration plate character(s) incorrectly spaced (6.3.4a)

Offside Front Front position lamp(s) not working (1.1.A.3b)

Rear registration plate character(s) incorrectly spaced (6.3.4a)

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

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

Offside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Under-trays fitted obscuring some underside components

Fail 19 Feb 2013 50,717 miles

Items removed from driver's view prior to test

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

Under-trays fitted obscuring some underside components

Pass 19 Feb 2013 50,717 miles

Items removed from driver's view prior to test

Under-trays fitted obscuring some underside components

Pass 8 Feb 2012 46,553 miles

Nearside Rear 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 4 Feb 2011 38,834 miles
Pass 17 Oct 2009 28,144 miles
Fail 16 Oct 2009 28,120 miles

Nearside Front Radius arm has excessive play in a pin/bearing (2.4.G.2)

Offside Front Radius arm has excessive play in a pin/bearing (2.4.G.2)

Pass 20 Oct 2008 20,365 miles
Pass 15 Oct 2007 16,558 miles

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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J21 BYE is a 2004 Mercedes-benz Slk in Black with a 1,798cc 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 J21 BYE, 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 J21 BYE?

You can check the full history of J21 BYE by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was J21 BYE registered?

J21 BYE is a 2004 Mercedes-benz Slk, first registered on 20 October 2004.

Is J21 BYE safe to buy?

The MOT history for J21 BYE 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 J21 BYE 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 J21 BYE. 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.