Mercedes Benz Cl (2014)

103 real MOT outcomes analysed • 86.7% first-time pass rate

2014 Mercedes Benz Cl

CarHunch analysed 103 real MOT records for the 2014 Mercedes Benz Cl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2014 Mercedes-Benz CL passes its MOT at 86.7%, which is solidly above the UK average of 80%, but nearly 39% of these cars have recorded a dangerous defect at some point—a significant concern for buyers, suggesting electrical or brake system issues are common. When failures do occur, they average 1.48 per vehicle, though the real eye-raiser is the 10.6 advisories per car, indicating these are high-mileage luxury cars that accumulate warning signs.

At a median of 50,141 miles for a decade-old car, these CLs are relatively well-used but not excessively so, making the high advisory count more telling—it's not just wear, it's the complexity of the platform catching up. Before buying one, obtain a full service history and have a Mercedes specialist inspect the electrical systems and suspension, as that advisory load suggests both are areas where costs will mount quickly.

Below average reliability 6.7% above UK average
86.7%
pass MOT first time
UK average: ~80%
50,141
typical mileage
36,580–61,044 middle half
38.8%
ever had a dangerous defect
recorded at any MOT
1.48
avg MOT failures per car
over 10 tests on record

What to check before buying a 2014 Mercedes Benz Cl

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • ⚠️ 38.8% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Mercedes Benz Cl

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

CarHunch may earn a small commission if you buy via these links — at no extra cost to you.

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (97%) 100 86.4% 1.52
Diesel (3%) 3 100% 0

Mileage Distribution

Most 2014 Mercedes Benz Cl vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

36,580
low mileage
50,141
typical
61,044
high mileage

Half of all 2014 Mercedes Benz Cl vehicles fall between 36,580 and 61,044 miles.

2014 Mercedes Benz Cl — Still on the Road

Strong survival — 91 vehicles still getting MOTs in 2025, 94% of the peak.

97 91 2017 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.

MOT History Averages

10
Avg MOT tests per vehicle
1.48
Avg failures per vehicle
10.6
Avg advisories per vehicle

Most Common MOT Issues — 2014 Mercedes Benz Cl

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 54.8%
    Nearside Rear Tyre worn close to legal limit/worn on edge
  • 52.5%
    Offside Rear Tyre worn close to legal limit/worn on edge
  • 26.2%
    Nearside Front Wheel bearing has slight play
  • 20.4%
    Offside Front Tyre worn close to legal limit/worn on edge
  • 20.4%
    Offside Front Wheel bearing has slight play
  • 18.6%
    Rear Brake pad(s) wearing thin
  • 16.3%
    Nearside Front Tyre worn close to legal limit/worn on edge
  • 15.8%
    Front Brake pad(s) wearing thin

Data covers a 3-year window centred on 2014. Counts include advisories and failures.

Found a specific Mercedes Benz Cl?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Mercedes Benz Cl:

1997 1998 2000 2001 2002 2003 2004 2007 2008 2013