Mercedes Benz Sl (2014)
2014 Mercedes Benz Sl
CarHunch analysed 1,151 real MOT records for the 2014 Mercedes Benz Sl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2014 Mercedes-Benz SL passes its MOT first time at 90.5%, significantly above the UK average of 80%, which is genuinely impressive—but 28.8% of these cars have recorded at least one dangerous defect, a concern for any buyer considering one. That's a red flag worth investigating on any specific example you're viewing.
These SL models are running low mileage for their age at a median of 32,282 miles, suggesting they've been cherished rather than thrashed, though the 5.8 average advisories per vehicle hints at typical wear on ageing luxury components like suspension and seals. Before committing to a purchase, have a pre-buy inspection focus on the electrical and hydraulic systems, as these are where Mercedes SLs historically develop expensive problems.
What to check before buying a 2014 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.
- ⚠️ 28.8% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 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.
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Mileage Distribution
Most 2014 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.
Half of all 2014 Mercedes Benz Sl vehicles fall between 23,377 and 45,127 miles.
2014 Mercedes Benz Sl — Still on the Road
Strong survival — 1,008 vehicles still getting MOTs in 2025, 93% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
MOT History Averages
Most Common MOT Issues — 2014 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.
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22.8%
Nearside Rear Tyre worn close to legal limit/worn on edge
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22.3%
Offside Rear Tyre worn close to legal limit/worn on edge
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16.2%
Offside Front Tyre worn close to legal limit/worn on edge
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15.5%
Nearside Front Tyre worn close to legal limit/worn on edge
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15.4%
Offside Front Tyre slightly damaged/cracking or perishing
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15.4%
Nearside Front Tyre slightly damaged/cracking or perishing
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11.1%
Offside Rear Tyre slightly damaged/cracking or perishing
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10.5%
Engine MIL inoperative or indicates a malfunction
Data covers a 3-year window centred on 2014. 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.