Mercedes Benz Clk (1999)
1999 Mercedes Benz Clk
CarHunch analysed 7,886 real MOT records for the 1999 Mercedes Benz Clk.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 1999 CLK's 75.7% first-time pass rate sits 4.3 points below the UK average, which is a meaningful gap that suggests these cars encounter more issues than typical vehicles of this age. More concerning is that 27.3% have experienced a dangerous defect at some point—well above the 20% threshold—making pre-purchase inspection absolutely critical before committing to one.
With a median mileage of around 96,000 miles for a 25-year-old car, these CLKs are average runners, but they're carrying a heavy maintenance burden: an average of 3.6 failures and nearly 22 advisories per test suggest chronic minor wear and accumulating small problems. Get a full pre-purchase survey from a Mercedes specialist and budget for regular attention to electrics and suspension components—this isn't a hands-off classic.
The 1999 Mercedes Benz Clk has a decent first-time pass rate (75.7%), 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 7,886 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 7,886 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 1999.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 7,886 Mercedes Benz Clk cars.
Before you buy a 1999 Mercedes Benz Clk
Based on MOT data from 7,886 vehicles — here's what to check.
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Check the full MOT history.
27.3% 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%) | 7,854 | 75.7% | 3.6 |
Colour Breakdown
Based on 83,295 Mercedes Benz Clk vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 1999 Mercedes Benz Clk 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 1999 Mercedes Benz Clk vehicles fall between 76,215 and 115,876 miles.
1999 Mercedes Benz Clk — Still on the Road
Numbers are thinning — 14% of 1999 Mercedes Benz Clks are still active.
Numbers are declining — 665 vehicles still getting MOTs in 2025 (14% 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 1999 Mercedes Benz Clk stacks up against a rival.