Mercedes Benz Gla 220 Amg Line Prem + D 4m A (2021)
2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A
CarHunch analysed 540 real MOT records for the 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2021 GLA 220 is a genuinely reliable diesel: a 94.8% first-time pass rate runs well ahead of the UK average of 80%, and dangerous defects show up in just 3.1% of the fleet—low enough that it's not a buyer concern. The mileage profile is spot-on for a three-year-old car, with a median of 26,052 miles suggesting sensible owner usage, and most vehicles rack up only 0.14 failures per test, meaning serious faults are rare.
When you do encounter an advisory, it's typically minor—averaging 1.4 per vehicle—which reflects the brand's build quality and the relative youth of this cohort. Before committing, get a pre-purchase inspection focused on the diesel engine's fuel injectors and glow plugs, the two parts that tend to generate advisories on this platform; everything else points to a well-sorted car.
What to check before buying a 2021 Mercedes Benz Gla 220 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 Gla 220 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 Gla 220 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 Gla 220 Amg Line Prem + D 4m A vehicles fall between 19,568 and 33,378 miles.
MOT History Averages
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