Audi A4 S Ln Blk Ed 40 TFSI MHEV SA (2021)

What to check before buying a 2021 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA

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 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA

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Pass Rate by Fuel Type

Mileage Distribution

Most 2021 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA 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 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA vehicles fall between 23,244 and 37,636 miles.

2021 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA — Still on the Road

Strong survival — 397 vehicles still getting MOTs in 2025, 98% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

Found a specific Audi A4 S Ln Blk Ed 40 TFSI MHEV SA?

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