BMW 523 (2012)
Running costs, common problems, and reliability data based on 51 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
51
Avg Mileage
54,895 mi
Est. Annual Cost
£1,717
Is the 2012 BMW 523 reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 12 years old, 92% of BMW 523s from 2012 passed their MOT first time in 2024. That's based on 51 tests across the UK. The average mileage at this age is 54,895 miles.
How does the 2012 BMW 523 compare?
Mileage Analysis
The average 2012 BMW 523 has 54,895 miles on the clock, which is below the expected 88,800 miles for a 12-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a BMW 523?
The most reliable year is the 2013 model with a 100% MOT pass rate, while the 1996 model has the lowest at 68%. The 2012 sits between the two at 92%.
How much does a 2012 BMW 523 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 523 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2016 | 93% | 42 | 55,120 mi |
| 2013 | 100% | 68 | 48,039 mi |
| 2012 | 92% | 51 | 54,895 mi |
| 2011 | 84% | 341 | 79,140 mi |
| 2010 | 81% | 480 | 87,591 mi |
| 2009 | 80% | 193 | 97,424 mi |
| 2008 | 77% | 244 | 112,799 mi |
| 2007 | 76% | 327 | 118,243 mi |
| 2006 | 79% | 494 | 122,075 mi |
| 2005 | 80% | 414 | 120,862 mi |
| 2000 | 78% | 496 | 136,987 mi |
| 1999 | 71% | 1,057 | 137,920 mi |
| 1998 | 68% | 885 | 130,239 mi |
| 1997 | 78% | 266 | 128,092 mi |
| 1996 | 68% | 142 | 123,219 mi |
Checking a specific BMW 523?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2012 BMW 523
The 2012 BMW 523 is a premium with a 1990cc petrol engine. 51 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 13% of all 2012 cars for reliability.
With an average of 54,895 miles at 12 years old, BMW 523 owners tend to use this car less than the typical driver.
2012 BMW 523 Fuel Costs
The 1990cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2012 BMW 523?
Total estimated annual running cost is £1,717 (£143/month), broken down as £1327 fuel, £135 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW 523 Reliability Trend
Newer BMW 523s show better MOT pass rates than older ones, with an average improvement of 10 percentage points.
Buying a Used 2012 BMW 523
At 12 years old, the BMW 523 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 2013 model has the highest pass rate at 100%. Note: with only 51 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2012 BMW 523
The BMW 523 is actually the most reliable option among similar petrol premiums from this era. Here are comparable petrol cars with similar engines:
- FORD FOCUS (2013) 78% pass rate (-14%) from 132,292 tests
- NISSAN QASHQAI (2013) 72% pass rate (-20%) from 84,989 tests
- MERCEDES C (2012) 79% pass rate (-13%) from 59,235 tests
- MINI MINI (2010) 80% pass rate (-12%) from 59,218 tests