BMW 635 (2009)
Running costs, common problems, and reliability data based on 1,018 real MOT tests in 2024.
MOT Pass Rate
86%
Total Tests (2024)
1,018
Avg Mileage
124,198 mi
Est. Annual Cost
£1,900
Is the 2009 BMW 635 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 15 years old, 86% of BMW 635s from 2009 passed their MOT first time in 2024. That's based on 1,018 tests across the UK. The average mileage at this age is 124,198 miles.
How does the 2009 BMW 635 compare?
Mileage Analysis
The average 2009 BMW 635 has 124,198 miles on the clock, which is in line with the expected 111,000 miles for a 15-year-old car, suggesting normal everyday use.
Best year to buy a BMW 635?
The most reliable year is the 2010 model with a 86% MOT pass rate, while the 2008 model has the lowest at 82%. The 2009 sits between the two at 86%.
How much does a 2009 BMW 635 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 635 by Year
Checking a specific BMW 635?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2009 BMW 635
The 2009 BMW 635 is a premium performance with a 2993cc diesel engine. 1,018 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. It ranks in the top 20% of all 2009 cars for reliability.
With an average of 124,198 miles at 15 years old, BMW 635 owners drive about as much as the UK average.
2009 BMW 635 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 2009 BMW 635?
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 86% pass rate. Keeping on top of servicing will help avoid surprises.
BMW 635 Reliability Trend
The BMW 635 has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2009 BMW 635
At 15 years old, the BMW 635 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 2010 model has the highest pass rate at 86%.
Alternatives to the 2009 BMW 635
The BMW 635 is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- BMW 3 SERIES (2008) 80% pass rate (-6%) from 48,705 tests
- AUDI A4 (2011) 82% pass rate (-4%) from 26,901 tests
- AUDI A5 (2010) 82% pass rate (-4%) from 22,181 tests
- JAGUAR XF (2010) 80% pass rate (-6%) from 19,704 tests