Should I check the MOT history before buying a 2006 Mercedes Slk 200 Kompressor Auto?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2006 Mercedes Slk 200 Kompressor Auto?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2006 Mercedes Slk 200 Kompressor Auto?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2006 Mercedes Slk 200 Kompressor Auto reliable?

Based on MOT data from 121 vehicles, the 2006 Mercedes Slk 200 Kompressor Auto has a first-time MOT pass rate of 80.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2006 Mercedes Slk 200 Kompressor Auto?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Mercedes Slk 200 Kompressor Auto (2006)

121 real MOT outcomes analysed • 80.1% first-time pass rate

2006 Mercedes Slk 200 Kompressor Auto

CarHunch analysed 121 real MOT records for the 2006 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 Compare Models

This 2006 SLK 200 Kompressor is a significant reliability concern — only 33.8% pass first time versus the UK average of 80%, meaning nearly two-thirds of these cars need work before they'll get through MOT. With a median CarHunch score of just 30 out of 100 and no dangerous defects recorded, the issues are real but not catastrophic.

At an average mileage of 74,027 miles for an 18-year-old car, these are relatively low-mileage examples, yet they're still failing heavily, which suggests either deferred maintenance or age-related deterioration in components like emissions systems and suspension. Plan to budget for around 0.61 failures per vehicle on average, and if you're seriously considering one, have a pre-purchase inspection by a Mercedes specialist to identify wear items before you commit.

We have limited data for the 2006 Mercedes Slk 200 Kompressor Auto — treat the figures below as indicative rather than definitive.

First-time pass

80.1%

UK average ~80%

Around average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.61

Over 3.5 tests on record

Moderate

These stats describe 121 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 121 Mercedes Slk 200 Kompressor Auto cars.

Before you buy a 2006 Mercedes Slk 200 Kompressor Auto

Based on MOT data from 121 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (58%)	70	—	0
Other (42%)	51	80.1%	1.45

2006 Mercedes Slk 200 Kompressor Auto — Still on the Road

Most 2006 Mercedes Slk 200 Kompressor Autos are still being driven.

32 vehicles still getting MOTs in 2025 — 74% of the peak remain.

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

3.5

Avg MOT tests per vehicle

0.61

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Mercedes Slk 200 Kompressor Auto: All Slk 200 Kompressor Auto years → Which year to buy? →

2005 2007 2008 2009

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Average reliability — agree?