Mercedes Benz Glc 300 Amg Line Prem + D 4m A (2021)
2021 Mercedes Benz Glc 300 Amg Line Prem + D 4m A
CarHunch analysed 950 real MOT records for the 2021 Mercedes Benz Glc 300 Amg Line Prem + D 4m A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2021 Mercedes-Benz GLC 300 AMG Line is a strong performer in the MOT bay, with a 91.8% first-time pass rate that comfortably beats the UK average of 80%—a real mark of reliability at this age. Only 8.3% of vehicles have ever recorded a dangerous defect, which is well below concern threshold and suggests these cars are safe bets structurally.
At 31,150 miles median (33,612 average), these vehicles are running light for their age, which partly explains the clean record. The typical car racks up just 0.2 failures and 1.6 advisories per test, pointing to predictable wear items rather than systemic weak spots—the takeaway is that you're buying a well-engineered diesel SUV where maintenance trumps luck.
What to check before buying a 2021 Mercedes Benz Glc 300 Amg Line Prem + D 4m A
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.
- 📄 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 Glc 300 Amg Line Prem + D 4m A
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2021 Mercedes Benz Glc 300 Amg Line Prem + D 4m A 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.
Half of all 2021 Mercedes Benz Glc 300 Amg Line Prem + D 4m A vehicles fall between 24,616 and 40,290 miles.
MOT History Averages
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