BMW 730 Reliability, MOT Pass Rate & Common Faults
Free BMW 730 car check
Is the BMW 730 reliable? We analysed 226,495 real MOT tests across 21,689 vehicles to find out.
Got a specific BMW 730? Enter the reg for a free check:
The BMW 730 is above average for reliability based on real UK MOT data. Common problems include tyre tread depth below requirements of 1.6mm, position lamp(s) not working and suspension arm has excessive play in a ball joint. Here's everything you need to know before buying a used BMW 730.
BMW 730 Number Plates
Number plates registered to a BMW 730. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
BMW 730 MOT Pass Rate by Year
How likely is a BMW 730 to pass its MOT? Here's the pass rate for each registration year, newest first.
BMW 730 Problems — What Goes Wrong?
The most common reasons a BMW 730 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
BMW 730 Common Faults & Problems
These are the most common serious faults found on BMW 730 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
BMW 730 Mileage — What's Normal?
How many miles does a typical BMW 730 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
BMW 730 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the BMW 730 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 178 | 93.8% | 32,894 | 42,390 | 61,705 |
| 2020 | 1,321 | 93.0% | 26,390 | 38,740 | 56,172 |
| 2019 | 3,836 | 92.1% | 26,296 | 42,644 | 65,074 |
| 2018 | 4,084 | 91.7% | 30,446 | 46,902 | 70,496 |
| 2017 | 5,817 | 90.7% | 34,012 | 52,134 | 74,756 |
| 2016 | 7,773 | 90.2% | 38,064 | 58,009 | 84,532 |
| 2015 | 6,118 | 87.6% | 38,741 | 62,166 | 91,687 |
| 2014 | 8,717 | 85.8% | 43,760 | 67,707 | 97,548 |
| 2013 | 5,492 | 85.1% | 46,970 | 72,506 | 105,664 |
| 2012 | 8,808 | 85.2% | 49,484 | 76,754 | 110,911 |
| 2011 | 12,857 | 83.8% | 53,414 | 82,496 | 116,327 |
| 2010 | 12,162 | 84.4% | 54,875 | 85,999 | 121,603 |
| 2009 | 10,432 | 83.7% | 54,566 | 86,974 | 123,001 |
| 2008 | 15,788 | 81.2% | 59,469 | 93,631 | 132,276 |
| 2007 | 16,566 | 80.8% | 62,442 | 96,548 | 135,577 |
| 2006 | 30,417 | 78.8% | 65,338 | 100,742 | 139,374 |
| 2005 | 19,318 | 78.0% | 65,145 | 99,808 | 138,610 |
| 2004 | 15,227 | 77.4% | 64,934 | 98,246 | 134,726 |
| 2003 | 14,566 | 77.6% | 69,508 | 103,703 | 142,809 |
| 2002 | 87 | 75.9% | 64,650 | 103,776 | 137,376 |
How Long Does a BMW 730 Last?
Based on 21,689 BMW 730 vehicles on UK roads.
BMW 730 Mileage Distribution
Total mileage recorded across all BMW 730 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used BMW 730
Based on MOT pass rates across all registration years with sufficient test data.
93.8% MOT pass rate from 178 tests
67.3% MOT pass rate from 1,381 tests
The best year to buy a used BMW 730 is 2021, which has the highest MOT pass rate at 93.8% across 178 tests. The 1996 model year has the lowest pass rate at 67.3% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the BMW 730 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| BMW 730 THIS CAR | 80.7% | 226,495 | 91,242 mi | 37 yrs |
| BMW 3 Series | 75.1% | 12,840,406 | 90,743 mi | 37 yrs |
| BMW 118 | 81.5% | 1,923,256 | 64,042 mi | 22 yrs |
| BMW X5 | 77% | 1,735,343 | 83,401 mi | 25 yrs |
| Honda CBR1000RR | 88.2% | 73,826 | 13,546 mi | 22 yrs |
Compared to the BMW 3 Series (75.1% pass rate) and the BMW 118 (81.5% pass rate), the BMW 730 sits in the middle of the pack on MOT reliability.
Found a BMW 730 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific BMW 730Should you buy a used BMW 730?
The BMW 730 has an overall MOT pass rate of 80.7% across 226,495 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the BMW 730 are tyre tread depth below requirements of 1.6mm (6,448 recorded failures), position lamp(s) not working (2,801), and suspension arm has excessive play in a ball joint (2,342). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a BMW 730 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical BMW 730 owner drives around 7,857 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most BMW 730 models stay on UK roads for around 37 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.