BMW 630i Auto (2005)

148 real MOT outcomes analysed • 13.6% first-time pass rate

2005 BMW 630i Auto

CarHunch analysed 148 real MOT records for the 2005 BMW 630i Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2005 BMW 630i has a first-time MOT pass rate of just 13.6%, dramatically below the UK average of 80%, making it a significantly unreliable proposition by this age. The petrol version shows a 0% pass rate across 122 vehicles tested, indicating systematic problems that affect virtually every example on the road—though the 0% dangerous defect rate is the only bright spot.

At 112,199 miles on average, these cars are well-used but not excessively so for their age, yet they're still failing MOTs at an alarming rate. The low failure count per vehicle (0.27) masks the real issue: these cars aren't failing because of multiple minor faults, but because nearly all of them fail on something significant. If you're considering one, budget heavily for repair work before purchase and get a pre-buy inspection from a BMW specialist—this model needs serious attention to pass a test.

Below average reliability 66.4% below UK average
13.6%
pass MOT first time
UK average: ~80%
0%
ever had a dangerous defect
recorded at any MOT
0.27
avg MOT failures per car
over 2 tests on record

What to check before buying a 2005 BMW 630i 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 630i 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 (82%) 122 0% 0
Other (18%) 26 77.5% 1.54

2005 BMW 630i Auto — Still on the Road

Strong survival — 16 vehicles still getting MOTs in 2025, 84% of the peak.

10 16 2017 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.

MOT History Averages

2
Avg MOT tests per vehicle
0.27
Avg failures per vehicle
0
Avg advisories per vehicle

Found a specific BMW 630i Auto?

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

UK