BMW 730 (2015)
Running costs, common problems, and reliability data based on 1,345 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
1,345
Avg Mileage
91,832 mi
Est. Annual Cost
£1,900
Is the 2015 BMW 730 reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 9 years old, 89% of BMW 730s from 2015 passed their MOT first time in 2024. That's based on 1,345 tests across the UK. The average mileage at this age is 91,832 miles.
How does the 2015 BMW 730 compare?
Mileage Analysis
The average 2015 BMW 730 has 91,832 miles on the clock, which is above the expected 66,600 miles for a 9-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Best year to buy a BMW 730?
The most reliable year is the 2021 model with a 98% MOT pass rate, while the 1995 model has the lowest at 70%. The 2015 sits between the two at 89%.
How much does a 2015 BMW 730 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW 730 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 98% | 243 | 41,849 mi |
| 2020 | 95% | 1,033 | 41,493 mi |
| 2019 | 95% | 1,966 | 55,627 mi |
| 2018 | 95% | 1,592 | 67,232 mi |
| 2017 | 94% | 1,696 | 76,335 mi |
| 2016 | 91% | 2,288 | 88,853 mi |
| 2015 | 89% | 1,345 | 91,832 mi |
| 2014 | 89% | 1,656 | 97,859 mi |
| 2013 | 89% | 875 | 110,696 mi |
| 2012 | 88% | 1,119 | 115,118 mi |
| 2011 | 86% | 1,467 | 119,035 mi |
| 2010 | 89% | 991 | 128,302 mi |
| 2009 | 88% | 806 | 130,274 mi |
| 2008 | 82% | 1,043 | 138,734 mi |
| 2007 | 85% | 927 | 142,639 mi |
| 2006 | 81% | 1,315 | 141,407 mi |
| 2005 | 83% | 694 | 150,286 mi |
| 2004 | 83% | 322 | 132,666 mi |
| 2003 | 88% | 277 | 139,746 mi |
| 1995 | 70% | 96 | 129,643 mi |
| 1994 | 86% | 70 | 106,349 mi |
| 1993 | 68% | 37 | 128,018 mi |
| 1992 | 81% | 31 | 126,198 mi |
| 1991 | 76% | 34 | 141,732 mi |
| 1990 | 82% | 57 | 129,365 mi |
Checking a specific BMW 730?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2015 BMW 730
The 2015 BMW 730 is a premium performance with a 2993cc diesel engine. 1,345 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.
With an average of 91,832 miles at 9 years old, BMW 730 owners cover more miles than the average driver.
2015 BMW 730 Fuel Costs
The 2993cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2015 BMW 730?
Total estimated annual running cost is £1,900 (£158/month), broken down as £1245 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
BMW 730 Reliability Trend
Newer BMW 730s show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2015 BMW 730
At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 98%.
Alternatives to the 2015 BMW 730
If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- AUDI A5 (2017) 89% pass rate (same) from 33,531 tests
- MERCEDES GLC (2017) 90% pass rate (+1%) from 28,866 tests
- LAND ROVER RANGE ROVER (2013) 88% pass rate (-1%) from 27,426 tests
- JAGUAR XF (2014) 84% pass rate (-5%) from 26,866 tests