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20 WW

1978 Mercedes-benz Sl

Blue Petrol 4973cc
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MOT Status

Valid
Expires20 Oct 2026
Tests22 (19 pass, 3 fail)
Pass rate86.4%

Mileage

32,395 mi
Last recorded32,395 miles
Recorded on10 Oct 2025
Typical for 1978 Mercedes-benz Sl94,523 mi

Below or average mileage for this year

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

Registration20 WW
MakeMercedes-benz
ModelSl
Year1978
ColourBlue
Fuel typePetrol
Engine4,973cc

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

19 pass 3 fail
Pass 10 Oct 2025 32,395 miles
Pass 26 Sep 2024 32,062 miles
Pass 6 Oct 2023 31,655 miles
Pass 29 Sep 2022 31,202 miles
Pass 13 Oct 2021 30,771 miles

Oil leak, but not excessive slight diff oil leak (8.4.1 (a) (i))

Fail 13 Oct 2021 30,771 miles

Parking brake efficiency below requirements (1.4.2 (a) (i))

Pass 21 Oct 2020 30,677 miles

Oil leak, but not excessive Rear diff oil leak (8.4.1 (a) (i))

Fail 21 Oct 2020 30,677 miles

Parking brake efficiency below requirements (1.4.2 (a) (i))

Oil leak, but not excessive Rear diff oil leak (8.4.1 (a) (i))

Pass 23 May 2019 30,236 miles
Pass 3 May 2018 30,147 miles
Pass 4 May 2017 29,793 miles
Pass 6 May 2016 29,402 miles
Pass 15 May 2015 28,892 miles

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

Fail 15 May 2015 28,892 miles

Nearside Front Direction indicator flashing more than 120 times a minute (1.4.A.2g)

Nearside Front Hazard warning lamps not flashing in phase, with ignition on (1.4.B.1f)

Nearside Rear Direction indicator flashing more than 120 times a minute (1.4.A.2g)

Nearside Rear Hazard warning lamps not flashing in phase, with ignition on (1.4.B.1f)

Offside Front Direction indicator flashing more than 120 times a minute (1.4.A.2g)

Offside Front Hazard warning lamps not flashing in phase, with ignition on (1.4.B.1f)

Offside Rear Direction indicator flashing more than 120 times a minute (1.4.A.2g)

Offside Rear Hazard warning lamps not flashing in phase, with ignition on (1.4.B.1f)

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

Pass 6 May 2014 27,996 miles
Pass 30 May 2013 27,450 miles
Pass 11 May 2012 27,089 miles
Pass 18 May 2011 26,805 miles

nearside headlamp slightly dull

Pass 19 Apr 2010 26,621 miles
Pass 12 May 2009 26,442 miles
Pass 9 May 2008 25,718 miles

Nearside Front Sub-frame rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Front Sub-frame rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Pass 17 Apr 2007 25,616 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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20 WW is a 1978 Mercedes-benz Sl in Blue with a 4,973cc petrol engine. This vehicle has been through 22 MOT tests with a personal pass rate of 86.4%.

Across all 1978 Mercedes-benz Sl models, the average MOT pass rate is 72.3% with a typical mileage of 94,523 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 20 WW, 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 48 years old, this Mercedes-benz Sl is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of 20 WW?

You can check the full history of 20 WW by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was 20 WW registered?

20 WW is a 1978 Mercedes-benz Sl, first registered on 17 January 1978.

Is 20 WW safe to buy?

The MOT history for 20 WW shows 22 tests with a 86.4% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does 20 WW 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 20 WW. 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.