Mercedes Benz

Mercedes Benz Cl 500 (2001)

548 real MOT outcomes analysed • 78.4% first-time pass rate

2001 Mercedes Benz Cl 500

CarHunch analysed 548 real MOT records for the 2001 Mercedes Benz Cl 500. 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 Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2001 Mercedes-Benz CL 500 hits the MOT pass rate at 78.4%, just slightly below the UK average of 80%, but the real concern is that nearly one in three of these cars (31.2%) have recorded a dangerous defect at some point—a significant red flag for any potential buyer. This is a high-mileage luxury coupe with a median of 80,724 miles on the clock, and while that's reasonable for a 23-year-old car, the average of 3.66 failures per test suggests structural issues beyond routine wear.

The exceptionally high advisory count of 21.3 per vehicle reveals why these cars demand respect: they're complex machines prone to multiple minor issues even when passing. Before buying, get a pre-purchase inspection focused on the transmission, suspension, and cooling system—the advisory volume suggests these are weak points—and factor in premium parts costs and specialist labour into your ownership budget.

The 2001 Mercedes Benz Cl 500 has a decent first-time pass rate (78.4%), 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
78.4%
UK average ~80%
Around average
Dangerous (ever)
31.2%
At least once in MOT history
Check this vehicle
Avg failures / car
3.66
Over 16.2 tests on record
High
Typical mileage
81k
Middle half: 65k–101k
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 21.3 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 548 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

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 548 Mercedes Benz Cl 500 cars.

UK

Before you buy a 2001 Mercedes Benz Cl 500

Based on MOT data from 548 vehicles — here's what to check.

  • 📋 Check the full MOT history. 31.2% 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 (99%) 543 78.4% 3.65

Colour Breakdown

Based on 4,209 Mercedes Benz Cl 500 vehicles registered in the UK — across all years. From DVLA registration records.

Silver 44.9%
1,889
Black 29.2%
1,227
Blue 16.4%
690
Grey 4.6%
194
Red 1.4%
57
Green 1%
42
White 0.9%
36
Purple 0.8%
33
Gold 0.4%
15
Maroon 0.3%
13
Beige 0.3%
13

Mileage Distribution

Most 2001 Mercedes Benz Cl 500 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.

80,724
typical
64,683
low mileage
100,517
high mileage

Half of all 2001 Mercedes Benz Cl 500 vehicles fall between 64,683 and 100,517 miles.

Is the mileage you're seeing normal?
Under 64,683 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.
64,683–100,517 miles — normal for age. This is where most 2001 Mercedes Benz Cl 500s sit.
Over 135,697 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2001 Mercedes Benz Cl 500 — Still on the Road

Numbers are thinning — 31% of 2001 Mercedes Benz Cl 500s are still active.

Numbers are declining — 123 vehicles still getting MOTs in 2025 (31% of peak).

392 123 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

16.2
Avg MOT tests per vehicle
3.66
Avg failures per vehicle
21.3
Avg advisories per vehicle
Other model years — Mercedes Benz Cl 500: All Cl 500 years → Which year to buy? →
2000 2002 2003 2004 2005 2007 2008 2009 2010

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Compare with another model

See how the 2001 Mercedes Benz Cl 500 stacks up against a rival.

Watch for defects — worth knowing