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T420 ATR

1999 Mercedes-benz Sl

Blue Petrol 3199cc
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MOT Status

Valid
Expires23 Apr 2027
Tests23 (20 pass, 3 fail)
Pass rate87%

Mileage

105,603 mi
Last recorded105,603 miles
Recorded on24 Apr 2026
Typical for 1999 Mercedes-benz Sl67,886 mi

Significantly above average — investigate

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

RegistrationT420 ATR
MakeMercedes-benz
ModelSl
Year1999
ColourBlue
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 3 fail
Pass 24 Apr 2026 105,603 miles
Pass 17 Oct 2024 105,187 miles

Offside Rear Fuel hose deteriorated (6.1.3 (c) (ii))

Pass 10 Oct 2023 103,822 miles
Pass 10 Oct 2022 102,092 miles
Fail 10 Oct 2022 102,046 miles

Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))

Pass 25 Apr 2022 101,620 miles

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 29 Apr 2021 101,416 miles
Pass 4 Dec 2018 100,879 miles
Pass 24 Nov 2017 99,867 miles
Pass 21 Nov 2016 99,232 miles
Pass 20 Nov 2015 97,618 miles
Pass 18 Nov 2014 96,106 miles
Pass 22 Nov 2013 95,125 miles
Pass 22 Nov 2012 93,160 miles
Pass 23 Nov 2011 90,537 miles
Fail 25 Nov 2010 87,664 miles

Offside Headlamp aim too low (1.8)

Pass 25 Nov 2010 87,664 miles
Pass 24 Nov 2009 85,430 miles

exhaust rusty rear brake disc rusty

Pass 25 Nov 2008 83,580 miles
Pass 27 Jul 2007 78,262 miles
Pass 29 Jul 2006 68,501 miles
Fail 25 Jul 2006 68,501 miles

Anti-lock braking system warning lamp indicates an ABS fault (3.4.1c)

Centre Rear Stop lamp not working (1.2.1b)

Pass 24 Jun 2005 63,710 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)

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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T420 ATR is a 1999 Mercedes-benz Sl in Blue with a 3,199cc petrol engine. This vehicle has been through 23 MOT tests with a personal pass rate of 87%.

Across all 1999 Mercedes-benz Sl models, the average MOT pass rate is 83.3% with a typical mileage of 67,886 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 T420 ATR, 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 27 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 T420 ATR?

You can check the full history of T420 ATR by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was T420 ATR registered?

T420 ATR is a 1999 Mercedes-benz Sl, first registered on 4 March 1999.

Is T420 ATR safe to buy?

The MOT history for T420 ATR shows 23 tests with a 87% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does T420 ATR 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 T420 ATR. 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.