BMW 520i M Sport MHEV Auto (2023)
2023 BMW 520i M Sport MHEV Auto
CarHunch is tracking 185 2023 BMW 520i M Sport MHEV Auto vehicles on UK roads. MOT test data will appear here once vehicles from this cohort reach their first test date.
This 2023 BMW 520i M Sport is failing its MOT at a catastrophic rate: just 17.8% pass first time versus the UK average of 80%. While dangerous defects are rare at 1.1%, the sheer scale of failures—with nearly 4 in 5 vehicles not passing—suggests systemic issues with how these cars are built or set up.
At an average mileage of 22,832 miles for a 2023 model, these cars are still relatively new, which makes the failure rate even more alarming; you'd expect near-perfect results at this age and mileage. The low average of 0.01 failures and 0.1 advisories per vehicle masks the real story—most cars are racking up multiple defects at once during their test. Before committing to this model, get a pre-purchase inspection done by an independent BMW specialist, not just a standard MOT.
We have 185 2023 BMW 520i M Sport MHEV Auto vehicles on record but don't have enough MOT test data to show reliable statistics for this cohort.
What to check before buying a 2023 BMW 520i M Sport MHEV Auto
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 BMW 520i M Sport MHEV Auto
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2023 BMW 520i M Sport MHEV Auto 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 2023 BMW 520i M Sport MHEV Auto vehicles fall between 13,000 and 29,740 miles.
Found a specific BMW 520i M Sport MHEV Auto?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.