Mercedes Slk 200 Kompressor Auto (2008)

249 real MOT outcomes analysed • 80.4% first-time pass rate

2008 Mercedes Slk 200 Kompressor Auto

CarHunch analysed 249 real MOT records for the 2008 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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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 2008 SLK 200 Kompressor is a serious reliability concern: only 13.2% pass their MOT first time against the UK average of 80%, and incredibly, zero petrol examples in this sample passed outright. While dangerous defects are mercifully absent, the systematic failure pattern suggests deep structural issues with this specific model year and engine combination that go beyond typical wear.

At 70,000 miles on average, these cars aren't running high mileage, yet they're still accumulating 0.31 failures per test on average—a sign the problems are inherent rather than age-related. If you're seriously considering one, budget heavily for immediate mechanical rectification and get a pre-purchase inspection from a Mercedes specialist who knows the Kompressor's weak points; this isn't a buy-it-and-drive proposition.

We have limited data for the 2008 Mercedes Slk 200 Kompressor Auto — treat the figures below as indicative rather than definitive.

First-time pass
80.4%
UK average ~80%
Around average
Dangerous (ever)
0%
At least once in MOT history
Check this vehicle
Avg failures / car
0.31
Over 2.2 tests on record
Low

These stats describe 249 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 249 Mercedes Slk 200 Kompressor Auto cars.

UK

Before you buy a 2008 Mercedes Slk 200 Kompressor Auto

Based on MOT data from 249 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 (84%) 208 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

2008 Mercedes Slk 200 Kompressor Auto — Still on the Road

Almost all 2008 Mercedes Slk 200 Kompressor Autos are still on the road.

Strong survival — 34 vehicles still getting MOTs in 2025, 92% of the peak.

27 34 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

2.2
Avg MOT tests per vehicle
0.31
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 2009

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Compare with another model

See how the 2008 Mercedes Slk 200 Kompressor Auto stacks up against a rival.

Average reliability — agree?