BMW 728 (1999)
Running costs, common problems, and reliability data based on 453 real MOT tests in 2024.
MOT Pass Rate
83%
Total Tests (2024)
453
Avg Mileage
134,511 mi
Est. Annual Cost
£2,247
Is the 1999 BMW 728 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the BMW brand average of 88%.
At 25 years old, 83% of BMW 728s from 1999 passed their MOT first time in 2024. That's based on 453 tests across the UK. The average mileage at this age is 134,511 miles.
How does the 1999 BMW 728 compare?
Mileage Analysis
The average 1999 BMW 728 has 134,511 miles on the clock, which is below the expected 185,000 miles for a 25-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a BMW 728?
The most reliable year is the 1996 model with a 89% MOT pass rate, while the 1997 model has the lowest at 78%. The 1999 sits between the two at 83%.
How much does a 1999 BMW 728 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 728 by Year
Checking a specific BMW 728?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1999 BMW 728
The 1999 BMW 728 is a premium performance with a 2793cc petrol engine. 453 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 22% of all 1999 cars for reliability.
With an average of 134,511 miles at 25 years old, BMW 728 owners tend to use this car less than the typical driver.
1999 BMW 728 Fuel Costs
The 2793cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1999 BMW 728?
Total estimated annual running cost is £2,247 (£187/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 83% pass rate. Keeping on top of servicing will help avoid surprises.
BMW 728 Reliability Trend
The BMW 728 has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 1999 BMW 728
At 25 years old, the BMW 728 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 1996 model has the highest pass rate at 89%.
Alternatives to the 1999 BMW 728
The BMW 728 is actually the most reliable option among similar petrol premium performances from this era. Here are comparable petrol cars with similar engines:
- BMW 3 SERIES (2001) 77% pass rate (-6%) from 9,406 tests
- BMW Z3 (1999) 78% pass rate (-5%) from 8,191 tests
- MERCEDES SLK (1999) 79% pass rate (-4%) from 4,295 tests
- PORSCHE BOXSTER (2001) 83% pass rate (same) from 4,134 tests