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KO04 AOZ

2004 Mercedes-benz Slk

Silver Petrol 3498cc
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MOT Status

Valid
Expires3 Dec 2026
Tests22 (17 pass, 5 fail)
Pass rate77.3%

Mileage

105,755 mi
Last recorded105,755 miles
Recorded on4 Dec 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

RegistrationKO04 AOZ
MakeMercedes-benz
ModelSlk
Year2004
ColourSilver
Fuel typePetrol
Engine3,498cc

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 5 fail
Pass 4 Dec 2025 105,755 miles

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

Nearside Front Upper Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

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

Pass 24 May 2023 100,424 miles

Nearside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Nearside Rear Tyre worn close to legal limit/worn on edge 245/40/17 (5.2.3 (e))

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Rear Tyre worn close to legal limit/worn on edge 245/40/17 (5.2.3 (e))

Rear Sub-frame is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

rear exhaust brackets corroded

Fail 24 May 2023 100,424 miles

Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))

Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))

Nearside Front Anti-roll bar linkage ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Nearside Rear Tyre worn close to legal limit/worn on edge 245/40/17 (5.2.3 (e))

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Rear Tyre worn close to legal limit/worn on edge 245/40/17 (5.2.3 (e))

Rear Sub-frame is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

rear exhaust brackets corroded

Pass 27 May 2022 99,338 miles
Fail 25 May 2022 99,338 miles

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

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

Pass 30 Apr 2021 94,816 miles

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

Front Headlamp has a product on the lens but not seriously reducing light output both need cleaning/polishing (4.1.4 (b))

Front Tyre slightly damaged both tyres outer sidewalls damaged (5.2.3 (d) (ii))

Rear exhaust hangar brackets corroded

all tyres are 8 years old

engine covers and under-trays fitted obscuring the view of some components

Fail 29 Apr 2021 94,815 miles

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

Offside Rear Service brake excessively fluctuating (1.2.1 (e))

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

Front Headlamp has a product on the lens but not seriously reducing light output both need cleaning/polishing (4.1.4 (b))

Front Tyre slightly damaged both tyres outer sidewalls damaged (5.2.3 (d) (ii))

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

Rear exhaust hangar brackets corroded

all tyres are 8 years old

engine covers and under-trays fitted obscuring the view of some components

Pass 30 Jul 2019 90,374 miles
Pass 10 Jul 2018 88,961 miles
Pass 21 Jul 2017 87,059 miles
Pass 25 Jul 2016 85,205 miles
Fail 25 Jul 2016 85,205 miles

Nearside Headlamp has a product on the lens so that the light output is severely reduced (1.7.5a)

Nearside Rear Brake hose excessively deteriorated (3.6.B.4d)

Offside Headlamp has a product on the lens so that the light output is severely reduced (1.7.5a)

Offside Rear Brake hose excessively deteriorated (3.6.B.4d)

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

Pass 31 Jul 2015 82,544 miles
Pass 25 Jul 2014 79,392 miles
Pass 30 Jul 2013 74,384 miles
Fail 30 Jul 2013 74,384 miles

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

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

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

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

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

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

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

Pass 20 Jul 2012 72,089 miles

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

Pass 19 Jul 2011 68,401 miles
Pass 23 Jul 2010 65,306 miles

Offside Front Suspension arm has slight play in a ball joint (2.4.G.2)

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

Offside Front wheel bearing has slight play (2.5.A.3c)

Suspension joint offside lower dust cover split/missing

Pass 3 Jul 2009 57,713 miles
Pass 1 Aug 2008 47,932 miles
Pass 30 Jul 2007 35,254 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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KO04 AOZ is a 2004 Mercedes-benz Slk in Silver with a 3,498cc petrol engine. This vehicle has been through 22 MOT tests with a personal pass rate of 77.3%.

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 KO04 AOZ, 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 KO04 AOZ?

You can check the full history of KO04 AOZ by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was KO04 AOZ registered?

KO04 AOZ is a 2004 Mercedes-benz Slk, first registered on 23 July 2004.

Is KO04 AOZ safe to buy?

The MOT history for KO04 AOZ shows 22 tests with a 77.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KO04 AOZ 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 KO04 AOZ. 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.