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N51 MON

2003 Mercedes-benz Sl

Black Petrol 4966cc
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MOT Status

Valid
Expires8 May 2027
Tests23 (21 pass, 2 fail)
Pass rate91.3%

Mileage

43,706 mi
Last recorded43,706 miles
Recorded on8 May 2026
Typical for 2003 Mercedes-benz Sl53,586 mi

Below or average mileage for this year

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

RegistrationN51 MON
MakeMercedes-benz
ModelSl
Year2003
ColourBlack
Fuel typePetrol
Engine4,966cc

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

21 pass 2 fail
Pass 8 May 2026 43,706 miles

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

Nearside Front Tyre worn close to legal limit/worn on edge outer edges (5.2.3 (e))

Nearside Rear Tyre worn close to legal limit/worn on edge outer edges (5.2.3 (e))

Fail 8 May 2026 43,706 miles

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

Nearside Front Tyre worn close to legal limit/worn on edge outer edges (5.2.3 (e))

Nearside Rear Tyre worn close to legal limit/worn on edge outer edges (5.2.3 (e))

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

Pass 7 May 2025 43,553 miles

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

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

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

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

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

Offside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

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

Pass 9 May 2024 43,508 miles

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

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

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

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

Offside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

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

Pass 24 Apr 2023 43,407 miles
Pass 11 Apr 2022 43,314 miles
Fail 7 Apr 2022 43,314 miles

Front Windscreen washer not working (3.5 (a))

Windscreen wiper not working (3.4 (a))

Pass 18 Mar 2021 43,129 miles
Pass 1 Mar 2020 42,714 miles
Pass 14 Mar 2019 41,497 miles
Pass 21 May 2018 40,801 miles
Pass 8 May 2017 39,452 miles
Pass 10 May 2016 37,771 miles
Pass 8 Apr 2015 35,939 miles
Pass 14 Apr 2014 34,751 miles
Pass 5 Mar 2013 32,757 miles
Pass 9 Mar 2012 31,831 miles

Engine covers fitted obscuring some components in the engine bay

Nearside Rear Shock absorber has a light misting of oil (2.7.3)

Under-trays fitted obscuring some underside components

Pass 7 Mar 2011 30,922 miles

Both front inner wheel arch brake pipes developing corrosion.

Majority of underside of vehicle not testable due to factory fitted dirt shielding.

Nearside Rear Shock absorber has a light misting of oil (2.7.3)

Pass 8 Mar 2010 29,120 miles
Pass 9 Mar 2009 26,634 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)

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

Pass 9 Jul 2008 25,143 miles
Pass 6 Jul 2007 23,384 miles

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

Pass 6 Sep 2006 21,059 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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N51 MON is a 2003 Mercedes-benz Sl in Black with a 4,966cc petrol engine. This vehicle has been through 23 MOT tests with a personal pass rate of 91.3%.

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 N51 MON, 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 N51 MON?

You can check the full history of N51 MON by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was N51 MON registered?

N51 MON is a 2003 Mercedes-benz Sl, first registered on 1 July 2003.

Is N51 MON safe to buy?

The MOT history for N51 MON shows 23 tests with a 91.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does N51 MON 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 N51 MON. 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.