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300 CO

2003 Mercedes-benz Sl

Silver Petrol 5439cc
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MOT Status

Valid
Expires13 Sep 2026
Tests21 (20 pass, 1 fail)
Pass rate95.2%

Mileage

73,203 mi
Last recorded73,203 miles
Recorded on10 Sep 2025
Typical for 2003 Mercedes-benz Sl53,586 mi

Above average mileage for this year

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

Registration300 CO
MakeMercedes-benz
ModelSl
Year2003
ColourSilver
Fuel typePetrol
Engine5,439cc

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 1 fail
Pass 10 Sep 2025 73,203 miles
Pass 11 Sep 2024 73,081 miles
Pass 7 Sep 2023 72,870 miles
Pass 14 Sep 2022 72,580 miles
Pass 3 Sep 2021 72,240 miles
Pass 7 Sep 2020 71,968 miles
Pass 3 Sep 2019 71,802 miles
Pass 29 Aug 2018 71,231 miles
Pass 8 Aug 2017 70,139 miles

Both rear tyres bald on inner edge, urgent attention required

Slight oil leak from o/s engine cam cover area

Slight play in n/s/f ABC strut lower ball joint

Smell of oil from engine bay

Pass 4 Aug 2016 68,901 miles

under trays fitted

Pass 29 Jul 2015 68,615 miles
Pass 16 Jul 2014 65,609 miles

Both rear tyres wearing on inner edge

Pass 9 Aug 2013 63,055 miles

Both front tyres wearing on inner edge

Nearside front tyre splitting on inner shoulder

Pass 25 Jul 2012 59,547 miles

Nearside Rear Road wheel with a slightly distorted bead rim (4.2.A.1a)

Offside Rear Road wheel with a slightly distorted bead rim (4.2.A.1a)

Pass 30 Jul 2011 53,907 miles
Fail 30 Jul 2011 53,907 miles

Nearside Rear Tyre has ply or cords exposed (4.1.D.1b) DANGEROUS

Offside Rear Tyre has ply or cords exposed (4.1.D.1b) DANGEROUS

Pass 7 Jul 2010 48,583 miles
Pass 1 Jul 2009 42,661 miles

Both rear tyres worn heavily on inner edges

Pass 3 Jul 2008 37,334 miles
Pass 25 Aug 2007 33,387 miles
Pass 21 Aug 2006 23,302 miles

How Reliable is the Mercedes-benz Sl?

Based on 528,820 MOT tests across 35,553 vehicles.

83.4%
Pass Rate
2,023
Miles/Year
43
Year Lifespan
35,553
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 8,801
Tyre has ply or cords exposed 3,812
Brake pipe excessively corroded 3,463
Tyre has a cut in excess of the requirements deep enough to reach the ply or cords 3,077
Windscreen wiper does not clear the windscreen effectively 2,767
Full Mercedes-benz Sl reliability report

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300 CO is a 2003 Mercedes-benz Sl in Silver with a 5,439cc petrol engine. This vehicle has been through 21 MOT tests with a personal pass rate of 95.2%.

Across all 2003 Mercedes-benz Sl models, the average MOT pass rate is 83.5% with a typical mileage of 53,586 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Mercedes-benz Sl fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 8,801 recorded failures. If you're considering buying 300 CO, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz Sl typically stays on UK roads for around 43 years. At 23 years old, this Mercedes-benz Sl is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of 300 CO?

You can check the full history of 300 CO by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was 300 CO registered?

300 CO is a 2003 Mercedes-benz Sl, first registered on 26 September 2003.

Is 300 CO safe to buy?

The MOT history for 300 CO shows 21 tests with a 95.2% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does 300 CO 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 300 CO. 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.