Mercedes Slk 200 Kompressor Auto (2009)

211 real MOT outcomes analysed • 81.9% first-time pass rate

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.
Which year to buy? →

On this page
AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Still on the Road MOT Averages Colour Breakdown Compare Models

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.

First-time pass
81.9%
UK average ~80%
Around average
Dangerous (ever)
0%
At least once in MOT history
Check this vehicle
Avg failures / car
0.3
Over 2.3 tests on record
Low

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.

Average reliability — agree?

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.

UK

Before you buy a 2009 Mercedes Slk 200 Kompressor Auto

Based on MOT data from 211 vehicles — here's what to check.

  • 📋 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.
  • 🔍 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

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.

Silver 43.1%
452
Black 34.6%
363
White 11.4%
119
Blue 7.1%
74
Red 3.8%
40

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.

21 36 2017 2025

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

2.3
Avg MOT tests per vehicle
0.3
Avg failures per vehicle
0
Avg advisories per vehicle
Other model years — Mercedes Slk 200 Kompressor Auto: All Slk 200 Kompressor Auto years → Which year to buy? →
2005 2006 2007 2008

Or browse all models: Mercedes →

Compare with another model

See how the 2009 Mercedes Slk 200 Kompressor Auto stacks up against a rival.

Average reliability — agree?