Mercedes Benz

Mercedes Benz Clk (1999)

7,886 real MOT outcomes analysed • 75.7% first-time pass rate

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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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

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.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
75.7%
UK average ~80%
Around average
Dangerous (ever)
27.3%
At least once in MOT history
Check this vehicle
Avg failures / car
3.6
Over 14.1 tests on record
High
Typical mileage
96k
Middle half: 76k–116k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 21.9 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

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.

Watch for defects — worth knowing

What tends to go wrong

Across 7,886 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 79.8%
Nearside Rear Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Suspension & steering 42.6%
Offside Front wheel bearing has slight play · Nearside Front wheel bearing has slight play · Offside Front Front wheel bearing has slight play · …
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Brake wear 33%
Front Brake pad(s) wearing thin · Offside Rear Brake pipe slightly corroded · Offside Rear Brake hose slightly deteriorated · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

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.

UK

Before you buy a 1999 Mercedes Benz Clk

Based on MOT data from 7,886 vehicles — here's what to check.

  • 📋 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.
  • 🔍 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 (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.

Silver 45.4%
37,818
Blue 26.3%
21,942
Black 21.4%
17,831
Red 2.8%
2,367
Grey 1.6%
1,362
Green 1.6%
1,299
White 0.5%
391
Purple 0.1%
85
Gold 0.1%
84
Beige 0.1%
72
Maroon 0%
22
Orange 0%
22

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.

95,841
typical
76,215
low mileage
115,876
high mileage

Half of all 1999 Mercedes Benz Clk vehicles fall between 76,215 and 115,876 miles.

Is the mileage you're seeing normal?
Under 76,215 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
76,215–115,876 miles — normal for age. This is where most 1999 Mercedes Benz Clks sit.
Over 156,432 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

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).

4,902 665 2014 2025

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

14.1
Avg MOT tests per vehicle
3.6
Avg failures per vehicle
21.9
Avg advisories per vehicle
Other model years — Mercedes Benz Clk: All Clk years → Which year to buy? →
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Or browse all models: Mercedes Benz →

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See how the 1999 Mercedes Benz Clk stacks up against a rival.

Watch for defects — worth knowing