Should I check the MOT history before buying a 2009 BMW 635?

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 2009 BMW 635?

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 2009 BMW 635?

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.

How many 2009 BMW 635 vehicles have had dangerous defects recorded?

44% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2009 BMW 635 reliable?

Based on MOT data from 552 vehicles, the 2009 BMW 635 has a first-time MOT pass rate of 82.8%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2009 BMW 635?

The most frequently recorded MOT issues on the 2009 BMW 635 are: Under-trays fitted obscuring some underside components (69.4% of vehicles), Rear Brake pad(s) wearing thin (53.9% of vehicles), Engine covers fitted obscuring some components in the engine bay (52.8% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2009 BMW 635?

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 635 (2009)

552 real MOT outcomes analysed • 82.8% first-time pass rate

2009 BMW 635

CarHunch analysed 552 real MOT records for the 2009 BMW 635. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2009 BMW 635 diesel posts an 82.8% first-time pass rate, marginally above the UK average of 80%, but the real concern is that 44% of vehicles in this cohort have suffered a dangerous defect at some point—well above typical levels and a serious red flag for potential buyers. This suggests systemic issues beyond routine wear, particularly given the model's premium positioning and age.

At 81,857 miles median, these cars show typical mileage for their age, yet they're averaging 2.72 failures and a staggering 14.2 advisories per test, indicating widespread minor issues and deferred maintenance. Before buying, have any candidate independently inspected for cooling system, fuel system, and suspension problems—the advisory count hints at parts fatigue that could prove expensive to address.

The 2009 BMW 635 has a decent first-time pass rate (82.8%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

82.8%

UK average ~80%

Around average

Dangerous (ever)

44%

At least once in MOT history

Check this vehicle

Avg failures / car

2.72

Over 15 tests on record

High

Typical mileage

82k

Middle half: 63k–103k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 14.2 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 552 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.

Watch for defects — worth knowing

What tends to go wrong

Across 552 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Other issues 69.4%

Under-trays fitted obscuring some underside components · Engine covers fitted obscuring some components in the engine bay · Oil leak, but not excessive

Brake wear 53.9%

Rear Brake pad(s) wearing thin · Front Brake disc worn, pitted or scored, but not seriously weakened · Rear Brake disc worn, pitted or scored, but not seriously weakened · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Tyre wear 44.6%

Offside Rear Tyre worn close to the legal limit · Nearside Rear Tyre worn close to legal limit/worn on edge · Offside Rear Tyre worn close to legal limit/worn on edge · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Data covers a 3-year window centred on 2009.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 552 BMW 635 cars.

Before you buy a 2009 BMW 635

Based on MOT data from 552 vehicles — here's what to check.

📋 Check the full MOT history. 44% 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 (99%)	544	82.8%	2.72

Colour Breakdown

Based on 3,905 BMW 635 vehicles registered in the UK — across all years. From DVLA registration records.

Black 32.9%

1,286

Blue 18.1%

707

Grey 18%

701

Silver 10.3%

402

Red 9.4%

368

White 6.8%

266

Bronze 1.9%

Green 1.4%

Gold 0.5%

Beige 0.4%

Maroon 0.2%

Yellow 0.2%

Mileage Distribution

Most 2009 BMW 635 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.

81,857

typical

62,992

low mileage

102,866

high mileage

Half of all 2009 BMW 635 vehicles fall between 62,992 and 102,866 miles.

Is the mileage you're seeing normal?

✓ Under 62,992 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.

✓ 62,992–102,866 miles — normal for age. This is where most 2009 BMW 635s sit.

⚠ Over 138,869 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2009 BMW 635 — Still on the Road

Numbers are thinning — 69% of 2009 BMW 635s are still active.

354 vehicles still getting MOTs in 2025 — 69% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

Avg MOT tests per vehicle

2.72

Avg failures per vehicle

14.2

Avg advisories per vehicle

Other model years — BMW 635: All 635 years → Which year to buy? →

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Compare with another model

See how the 2009 BMW 635 stacks up against a rival.

Watch for defects — worth knowing