Mercedes Slk 200 Kompressor Auto (2009)
2009 Mercedes Slk 200 Kompressor Auto
CarHunch analysed 211 real MOT records for the 2009 Mercedes Slk 200 Kompressor Auto.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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This 2009 Mercedes SLK 200 Kompressor is a serious reliability concern: just 19% pass their first MOT attempt, compared to the UK average of 80%, and petrol versions don't pass first time at all—meaning virtually every one returns for a retest. Fortunately, dangerous defects aren't showing up in the data, but the sheer failure rate suggests chronic issues that buyers will face repeatedly.
At an average mileage of 64,690 miles for a 15-year-old car, these are relatively low-mileage examples, which makes the failure pattern more troubling than wear-related degradation—the problems appear structural or design-related. The 0.3 average failures per vehicle masks a pattern of repeated testing, not one-off faults. Before buying, demand a fresh MOT with a detailed failure report and budget heavily for corrective work; this isn't a casual purchase.
We have limited data for the 2009 Mercedes Slk 200 Kompressor Auto — treat the figures below as indicative rather than definitive.
These stats describe 211 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 211 Mercedes Slk 200 Kompressor Auto cars.
Before you buy a 2009 Mercedes Slk 200 Kompressor Auto
Based on MOT data from 211 vehicles — here's what to check.
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Check the full MOT history.
0% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (77%) | 162 | — | 0 |
Colour Breakdown
Based on 1,048 Mercedes Slk 200 Kompressor Auto vehicles registered in the UK — across all years. From DVLA registration records.
2009 Mercedes Slk 200 Kompressor Auto — Still on the Road
Almost all 2009 Mercedes Slk 200 Kompressor Autos are still on the road.
Strong survival — 36 vehicles still getting MOTs in 2025, 97% 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.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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