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W21 UFO

2003 Mercedes-benz Clk

Black Petrol 3199cc
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MOT Status

Valid
Expires3 Feb 2027
Tests29 (20 pass, 9 fail)
Pass rate69%

Mileage

139,249 mi
Last recorded139,249 miles
Recorded on13 Jan 2026
Typical for 2003 Mercedes-benz Clk77,480 mi

Significantly above average — investigate

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

RegistrationW21 UFO
MakeMercedes-benz
ModelClk
Year2003
ColourBlack
Fuel typePetrol
Engine3,199cc

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

20 pass 9 fail
Pass 13 Jan 2026 139,249 miles

Brake pipe corroded, covered in grease or other material front to rear over fuel tank (1.1.11 (c))

Pass 4 Feb 2025 132,429 miles
Pass 19 Dec 2023 123,476 miles

both front to rear brake pipes are starting to corrode above rear axle on the n/s/r

n/s/r steel brake pipe going to flexi is starting to corrode

Fail 19 Dec 2023 123,476 miles

Offside Rear Brake pipe excessively corroded (1.1.11 (c))

both front to rear brake pipes are starting to corrode above rear axle on the n/s/r

n/s/r steel brake pipe going to flexi is starting to corrode

Pass 20 Dec 2022 115,547 miles
Fail 20 Dec 2022 115,547 miles

Nearside Side repeater not working (4.4.1 (a) (ii))

Pass 24 Dec 2021 108,489 miles

n/s/r steel brake pipe is starting to corrode

Fail 24 Dec 2021 108,489 miles

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

n/s/r steel brake pipe is starting to corrode

Pass 19 Nov 2020 101,341 miles

Offside Rear tyre has damage to outter side wall edge where it meets the tread

brake pad wear warning light is on but all pads are ok

front headlamps have a product fitted but not effecting beam image adversely

Pass 24 May 2019 94,245 miles
Pass 24 May 2018 88,408 miles

Exhaust mounting defective middle hanger corroded broken. (6.1.2 (a))

Fail 23 May 2018 88,383 miles

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

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

Exhaust mounting defective middle hanger corroded broken. (6.1.2 (a))

Pass 26 Apr 2017 84,496 miles

Undertrays fitted throughout and engine covers fitted

Fail 25 Apr 2017 84,495 miles

Supplementary Restraint System warning lamp indicates a fault (5.4.2)

Undertrays fitted throughout and engine covers fitted

Pass 25 May 2016 80,284 miles
Fail 25 May 2016 80,284 miles

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

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

Nearside Rear Stop lamp emits other than a steady red light (1.2.1e)

Pass 22 May 2015 76,000 miles

CENTRE EXHAUST PIPE METAL SUPPORT BRACKET CORRODED AWAY

Engine covers fitted obscuring some components in the engine bay

Under-trays fitted obscuring some underside components

Fail 21 May 2015 75,994 miles

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

CENTRE EXHAUST PIPE METAL SUPPORT BRACKET CORRODED AWAY

Engine covers fitted obscuring some components in the engine bay

Under-trays fitted obscuring some underside components

Pass 16 May 2014 73,170 miles

Nail in nearside rear tyre

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

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

battery clamp defective

Fail 15 May 2014 73,165 miles

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

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

Nail in nearside rear tyre

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

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

battery clamp defective

Pass 20 May 2013 71,414 miles

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

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

Fail 17 May 2013 71,318 miles

Nearside Rear coil spring fractured (2.4.C.1a)

Nail in nearside rear tyre

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 3 Apr 2012 66,413 miles
Pass 26 Mar 2011 62,417 miles
Pass 27 Mar 2010 57,847 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 18 Mar 2009 49,056 miles

o/s front tyre wearing on shoulders and tread has cuts

Pass 15 Mar 2008 39,559 miles
Pass 16 Jan 2007 25,462 miles
Pass 17 Jan 2006 21,216 miles

How Reliable is the Mercedes-benz Clk?

Based on 1,410,029 MOT tests across 83,874 vehicles.

74.7%
Pass Rate
4,986
Miles/Year
28
Year Lifespan
83,874
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 59,319
coil spring broken 19,719
Suspension arm has excessive play in a ball joint 16,744
Track rod end ball joint has excessive play 14,943
Brake pad(s) less than 1.5 mm thick 14,136
Full Mercedes-benz Clk reliability report

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W21 UFO is a 2003 Mercedes-benz Clk in Black with a 3,199cc petrol engine. This vehicle has been through 29 MOT tests with a personal pass rate of 69%.

Across all 2003 Mercedes-benz Clk models, the average MOT pass rate is 74.1% with a typical mileage of 77,480 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 Clk fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 59,319 recorded failures. If you're considering buying W21 UFO, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz Clk typically stays on UK roads for around 28 years. At 23 years old, this Mercedes-benz Clk is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of W21 UFO?

You can check the full history of W21 UFO by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was W21 UFO registered?

W21 UFO is a 2003 Mercedes-benz Clk, first registered on 16 January 2003.

Is W21 UFO safe to buy?

The MOT history for W21 UFO shows 29 tests with a 69% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does W21 UFO 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 W21 UFO. 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.