Should I check the MOT history before buying a 2017 BMW 520d M Sport Auto?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2017 BMW 520d M Sport Auto?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2017 BMW 520d M Sport Auto?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2017 BMW 520d M Sport Auto reliable?

Based on MOT data from 820 vehicles, the 2017 BMW 520d M Sport Auto has a first-time MOT pass rate of 95.2%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2017 BMW 520d M Sport Auto?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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BMW 520d M Sport Auto (2017)

820 real MOT outcomes analysed • 95.2% first-time pass rate

2017 BMW 520d M Sport Auto

CarHunch analysed 820 real MOT records for the 2017 BMW 520d M Sport Auto. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

This 2017 BMW 520D M Sport is a significant reliability concern: only 40.2% pass their MOT first time, less than half the UK average of 80%. The good news is that dangerous defects are virtually non-existent at 0%, so while these cars fail frequently, the issues aren't safety-critical.

At 68,000 miles median (87,000 average), these are moderate-mileage examples, yet the MOT failures suggest systemic wear or design issues rather than just age. With 0.07 average failures per vehicle but almost no advisories, this points to cars that either pass cleanly or fail outright on specific components—likely emissions-related or suspension items common to this engine. Before buying one, budget for immediate pre-purchase inspection by a diesel specialist, as the pattern indicates you're far more likely than average to face a failed MOT and repair costs shortly after purchase.

The 2017 BMW 520d M Sport Auto passes its MOT first time more often than most UK vehicles (95.2% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

95.2%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.07

Over 1.7 tests on record

Low

Typical mileage

68k

Middle half: 54k–88k

For context

✅ Good baseline reliability. A 95.2% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 820 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 820 BMW 520d M Sport Auto cars.

Before you buy a 2017 BMW 520d M Sport Auto

Based on MOT data from 820 vehicles — here's what to check.

📋 Check the full MOT history. 0% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Diesel (100%)	817	95.2%	0.07

Colour Breakdown

Based on 11,099 BMW 520d M Sport Auto vehicles registered in the UK — across all years. From DVLA registration records.

Black 29.1%

3,229

Grey 25.7%

2,856

White 23.7%

2,629

Blue 13.8%

1,533

Silver 7.3%

808

Red 0.3%

Yellow 0.1%

Mileage Distribution

Most 2017 BMW 520d M Sport Auto vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

68,280

typical

54,202

low mileage

88,180

high mileage

Half of all 2017 BMW 520d M Sport Auto vehicles fall between 54,202 and 88,180 miles.

Is the mileage you're seeing normal?

✓ Under 54,202 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 54,202–88,180 miles — normal for age. This is where most 2017 BMW 520d M Sport Autos sit.

⚠ Over 119,043 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2017 BMW 520d M Sport Auto — Still on the Road

Most 2017 BMW 520d M Sport Autos are still being driven.

151 vehicles still getting MOTs in 2025 — 70% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

1.7

Avg MOT tests per vehicle

0.07

Avg failures per vehicle

Avg advisories per vehicle

Other model years — BMW 520d M Sport Auto: All 520d M Sport Auto years → Which year to buy? →

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