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KO04 AOW

2004 Mercedes-benz Slk

Black Petrol 1998cc
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MOT Status

Valid
Expires29 Oct 2026
Tests30 (22 pass, 8 fail)
Pass rate73.3%

Mileage

83,096 mi
Last recorded83,096 miles
Recorded on30 Oct 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 AOW
MakeMercedes-benz
ModelSlk
Year2004
ColourBlack
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

22 pass 8 fail
Pass 30 Oct 2025 83,096 miles

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

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

Nearside Front Shock absorbers has a reduced damping effect (5.3.2 (d))

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

Offside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

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

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

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

Power steering component has slight seepage from a component (2.1.5 (a))

Fail 29 Oct 2025 83,096 miles

Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))

Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))

Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))

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

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

Nearside Windscreen washer not working (3.5 (a))

Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

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

Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))

Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

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

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

Nearside Front Shock absorbers has a reduced damping effect (5.3.2 (d))

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

Nearside Rear Tyre obviously under inflated (5.2.3 (l))

Offside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

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

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

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

Power steering component has slight seepage from a component (2.1.5 (a))

Pass 9 Oct 2024 81,958 miles

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

Fail 1 Oct 2024 81,858 miles

Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))

Offside Front Service brake excessively binding (1.2.1 (f))

Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

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

Pass 14 Sep 2023 81,675 miles

Battery insecure but not likely to fall from carrier (4.13 (a) (i))

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

Pass 30 Aug 2022 81,426 miles

Front Battery insecure but not likely to fall from carrier (4.13 (a) (i))

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

Fail 30 Aug 2022 81,426 miles

Front Battery insecure but not likely to fall from carrier (4.13 (a) (i))

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

Nearside Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a))

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

Pass 10 Aug 2021 80,163 miles

coolant light on

rear boot lid - struts not holding

Fail 3 Aug 2021 80,160 miles

Front Tyre(s) of different sizes are fitted on the same axle. (5.2.3 (b))

Nearside Front Headlamp aim too low (4.1.2 (a))

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

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

Offside Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))

Offside Front Headlamp aim too low (4.1.2 (a))

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

Offside Rear Brake pipe excessively corroded front to rear (1.1.11 (c))

Road wheel fixing missing all four wheels - wheel bolts missing (5.2.1 (a) (i))

Windscreen washer provides insufficient washer liquid (3.5 (a))

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

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

Nearside Rear fog light not working

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

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

coolant light on

rear boot lid - struts not holding

service light indicator on

Pass 22 Jul 2020 80,123 miles
Pass 11 Jan 2020 75,854 miles

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

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

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

Pass 9 Jan 2020 75,803 miles

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

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

Pass 7 Jan 2019 72,502 miles

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

Nearside Rear Exhaust mounting defective (6.1.2 (a))

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

Offside Rear Exhaust mounting defective (6.1.2 (a))

Oil leak, but not excessive from gearbox area (8.4.1 (a) (i))

Fail 7 Jan 2019 72,502 miles

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

Brake hydraulic reservoir close to minimum mark (1.1.10 (d) (i))

Nearside Headlamp aim too high (4.1.2 (a))

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

Nearside Rear Exhaust mounting defective (6.1.2 (a))

Offside Headlamp aim too high (4.1.2 (a))

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

Offside Rear Exhaust mounting defective (6.1.2 (a))

Oil leak, but not excessive from gearbox area (8.4.1 (a) (i))

Pass 8 Jan 2018 66,806 miles
Pass 13 Jan 2017 64,285 miles
Fail 12 Jan 2017 64,284 miles

Parking brake lever has no reserve travel (3.1.6b)

Parking brake: efficiency below requirements (3.7.B.7)

Pass 23 Apr 2016 61,346 miles
Pass 22 Apr 2015 53,918 miles

Engine covers fitted obscuring some components in the engine bay

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

Parking brake lever has little reserve travel (3.1.6b)

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

Under-trays fitted obscuring some underside components

Fail 22 Apr 2015 53,918 miles

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

Nearside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Offside Front Headlamp not working on dipped beam (1.7.5a)

Offside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Engine covers fitted obscuring some components in the engine bay

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

Parking brake lever has little reserve travel (3.1.6b)

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

Under-trays fitted obscuring some underside components

Pass 7 Jan 2015 51,183 miles
Pass 30 Apr 2014 48,453 miles
Pass 20 Mar 2013 46,245 miles
Pass 2 Apr 2012 44,307 miles
Pass 29 Mar 2011 41,879 miles

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

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

Fail 29 Mar 2011 41,879 miles

Nearside Headlamp aim too high and too far to the left. (1.8)

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

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

Pass 26 Aug 2010 41,416 miles

Exhaust has part of the system slightly deteriorated (7.1.1a)

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

unable to do all checks under side of car due to undertrays

Pass 7 Sep 2009 38,013 miles
Pass 11 Aug 2008 34,109 miles
Pass 27 Jul 2007 28,727 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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Not all vehicle check providers are the same. Some don't offer a data guarantee, which means if their information is wrong, you're on your own. Every CarVerify report is backed by a £30,000 finance data guarantee.

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KO04 AOW is a 2004 Mercedes-benz Slk in Black with a 1,998cc petrol engine. This vehicle has been through 30 MOT tests with a personal pass rate of 73.3%.

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 AOW, 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 AOW?

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

What year was KO04 AOW registered?

KO04 AOW is a 2004 Mercedes-benz Slk, first registered on 12 August 2004.

Is KO04 AOW safe to buy?

The MOT history for KO04 AOW shows 30 tests with a 73.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does KO04 AOW 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 AOW. 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.