2004 BMW 645: MOT pass rate and reliability
76.6% of 2004 BMW 645s pass the MOT first time, measured across 1,056 DVSA tests on that model year alone. The average one had covered 105,561 miles.
How the 2004 compares
- Against all BMW 645s (77.4%, 1,575 tests): -0.8 points
- Against all 2004 cars (64%): +12.6 points
- National first-time pass rate, all cars and years: 77%
Every BMW 645 model year
Pass rates fall as cars age, so the only fair comparison for a 2004 car is other cars of the same age. The full run for the BMW 645:
| Year | Pass rate | Tests | Avg mileage |
|---|---|---|---|
| 2004 | 76.6% | 1,056 | 105,561 |
| 2005 | 79.2% | 476 | 102,036 |
What this means if you are buying a 2004 645
The 2004 sits close to the BMW 645 average, so there is no strong model-year signal either way. Judge the individual car on its own history. Check the exact car with the free MOT history checker before you buy, and run its VIN and mileage through our free VIN decoder and clocking check.
What a 22-year-old car fails on
A 2004 car is 22 years old now, and age drives the failure mix more than the badge does. Across all cars tested, these are the categories that actually cause failures:
- Lights and electrical: 10.36% of all cars tested
- Suspension: 8.65% of all cars tested
- Tyres: 6.23% of all cars tested
- Brakes: 6.1% of all cars tested
- Visibility: wipers, washers, glass: 4.65% of all cars tested
- Body, chassis and structure: 3.18% of all cars tested
That is above average and into the range where cambelts and water pumps are due if they have not already been done, so ask for the service history rather than take the mileage on trust. On a 2004 BMW 645 the average at test was 105,561 miles, so treat anything far above that as a car that has worked harder than its peers, and anything far below as one worth checking for the faults that come from standing still.
The strongest year for this model is 2005 at 79.2%, and the weakest in our data is 2004 at 76.6%. That 2.6 point spread across the model's life is why comparing a 2004 car against a newer one tells you very little.
Nearby model years
- 2005 BMW 645 - 79.2%