Mercedes Benz Slk (2001)
2001 Mercedes Benz Slk
CarHunch analysed 4,696 real MOT records for the 2001 Mercedes Benz Slk.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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This 2001 SLK sits right at the UK average with a 79.3% pass rate, but the real concern is that nearly one in three have recorded a dangerous defect at some point—well above the typical threshold. That's a significant reliability red flag for a car now over 20 years old, suggesting structural, braking, or suspension issues are common in the used market.
At 71,994 miles on average, these cars show reasonable mileage for their age, but the 4.26 failures per vehicle and 26.7 advisories tell you ongoing maintenance costs will be substantial. If you're considering one, get a full pre-purchase inspection focused on the cooling system, electrical gremlins, and suspension components—these are where Mercedes of this era typically bleed money.
The 2001 Mercedes Benz Slk has a decent first-time pass rate (79.3%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 4,696 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.
What tends to go wrong
Across 4,696 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2001.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 4,696 Mercedes Benz Slk cars.
Before you buy a 2001 Mercedes Benz Slk
Based on MOT data from 4,696 vehicles — here's what to check.
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Check the full MOT history.
32.5% 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 (100%) | 4,693 | 79.3% | 4.26 |
Colour Breakdown
Based on 79,588 Mercedes Benz Slk vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2001 Mercedes Benz Slk vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2001 Mercedes Benz Slk vehicles fall between 53,398 and 89,415 miles.
2001 Mercedes Benz Slk — Still on the Road
Numbers are thinning — 44% of 2001 Mercedes Benz Slks are still active.
Numbers are declining — 1,772 vehicles still getting MOTs in 2025 (44% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* 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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Compare with another model
See how the 2001 Mercedes Benz Slk stacks up against a rival.