Should I check the MOT history before buying a 2004 BMW 645 Ci 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 2004 BMW 645 Ci 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 2004 BMW 645 Ci 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.

Do I need an HPI check when buying a 2004 BMW 645 Ci 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 645 Ci Auto (2004)

160 real MOT outcomes analysed • 16.6% first-time pass rate

2004 BMW 645 Ci Auto

CarHunch analysed 160 real MOT records for the 2004 BMW 645 Ci Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 63.4% below UK average

16.6%

pass MOT first time

UK average: ~80%

ever had a dangerous defect

recorded at any MOT

0.34

avg MOT failures per car

over 1.8 tests on record

What to check before buying a 2004 BMW 645 Ci 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 645 Ci Auto

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (76%)	122	0%	0
Other (24%)	38	69.8%	1.42

2004 BMW 645 Ci Auto — Still on the Road

15 vehicles still getting MOTs in 2024 — 60% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2018–2024.

MOT History Averages

1.8

Avg MOT tests per vehicle

0.34

Avg failures per vehicle

Avg advisories per vehicle

Found a specific BMW 645 Ci Auto?

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