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Mercedes Benz Sl (2017)

661 real MOT outcomes analysed • 93.4% first-time pass rate

2017 Mercedes Benz Sl

CarHunch analysed 661 real MOT records for the 2017 Mercedes Benz Sl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Average reliability 13.4% above UK average
93.4%
pass MOT first time
UK average: ~80%
22,472
typical mileage
15,476–30,598 middle half
19.5%
ever had a dangerous defect
recorded at any MOT
0.5
avg MOT failures per car
over 6.6 tests on record

What to check before buying a 2017 Mercedes Benz Sl

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Mercedes Benz Sl

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying →

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Mileage Distribution

Most 2017 Mercedes Benz Sl vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

15,476
low mileage
22,472
typical
30,598
high mileage

Half of all 2017 Mercedes Benz Sl vehicles fall between 15,476 and 30,598 miles.

2017 Mercedes Benz Sl — Still on the Road

Strong survival — 606 vehicles still getting MOTs in 2025, 96% of the peak.

633 606 2020 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2020–2025.

MOT History Averages

6.6
Avg MOT tests per vehicle
0.5
Avg failures per vehicle
3.4
Avg advisories per vehicle

Most Common MOT Issues — 2017 Mercedes Benz Sl

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 22%
    Nearside Rear Tyre worn close to legal limit/worn on edge
  • 22%
    Offside Rear Tyre worn close to legal limit/worn on edge
  • 14.8%
    Offside Front Tyre slightly damaged/cracking or perishing
  • 14.3%
    Nearside Front Tyre slightly damaged/cracking or perishing
  • 12.6%
    COVID-19 6 MONTH EXTENSION
  • 11.6%
    Offside Rear Tyre slightly damaged/cracking or perishing
  • 10.3%
    Offside Front Tyre worn close to legal limit/worn on edge
  • 9%
    Nearside Front Tyre worn close to legal limit/worn on edge

Data covers a 3-year window centred on 2017. Counts include advisories and failures.

Found a specific Mercedes Benz Sl?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Mercedes Benz Sl:

1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2018 2019