BMW 645
From 3,254 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
Older 645s fare better: 2005 models pass at 78.1% vs 80.5% for 2004.
What goes wrong?
The most common MOT failure reasons are a suspension pin, bush or joint excessively worn, a spring or spring component fractured or seriously weakened and a suspension joint dust cover missing or no longer prevents the ingress of dirt etc. The top issue, a suspension pin, bush or joint excessively worn, caused 120 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| a suspension pin, bush or joint excessively worn | 120 |
| a spring or spring component fractured or seriously weakened | 79 |
| a suspension joint dust cover missing or no longer prevents the ingress of dirt etc | 68 |
| brake pipe damaged or excessively corroded | 54 |
| a tyre seriously damaged | 46 |
| an srs malfunction indicator lamp (mil) indicates a system malfunction | 44 |
| engine mil illuminated indicating a malfunction | 43 |
| a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 40 |
| a tyre cords visible or damaged | 39 |
| tyre tread depth not in accordance with the requirements | 38 |
How serious are these failures?
Not all MOT failures are equal. 21.4% of 645 failures could actually strand you: fractured springs, engine faults, exhaust problems. Another 53.1% are safety issues where the car still drives but shouldn't, such as worn brakes, corroded brake pipes, and steering wear. When it does fail, the average repair bill is around £139.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2005 | 78.1% | a suspension pin, bush or joint excessively worn, a suspension joint dust cover missing or no longer prevents the ingress of dirt etc |
| 2004 | 80.5% | a suspension pin, bush or joint excessively worn, a spring or spring component fractured or seriously weakened |
Typical mileage
Half of all 645s tested had between 70,167 and 118,522 miles on the clock. A significant number are high-mileage vehicles.
At 99,014 median miles, the 645 has 0.02 failures per 10,000 miles driven.
Other BMW models
| BMW 3 Series | 79.2% |
| BMW 118 | 82.8% |
| BMW 116 | 78.9% |
| BMW X5 | 85.4% |
| BMW X3 | 83.9% |
Common questions
What is the BMW 645 MOT pass rate?
The BMW 645 has a 79.8% MOT pass rate based on 3,254 real MOT tests. This is above the national average.
What are common MOT failures on a BMW 645?
The most common MOT failure on the BMW 645 is a suspension pin, bush or joint excessively worn, which caused 120 failures. Other common issues include a spring or spring component fractured or seriously weakened.
What is the typical mileage of a BMW 645 at MOT?
The median mileage at MOT for a BMW 645 is 99,014 miles. The middle 50% of vehicles tested have between 70,167 and 118,522 miles.
Buying a used 645?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
With a 79.8% pass rate and an average repair bill of £139 when things go wrong, budget accordingly.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.