- Is the BMW 3 Series reliable?
- The BMW 3 Series scores 68/100 on Forecourt's MOT-based reliability measure, ahead of 33% of the cars we track. That is computed from 15,139,407 real DVSA MOT test results. The main things to check on a used one are the timing chain (n47 diesel, pre-2014).
- How much does a used BMW 3 Series cost?
- A 2023 BMW 3 Series with around 33,000 miles is worth roughly £25,150 today (typical range £22,350–£27,950). Dealer forecourt prices sit higher and part-exchange offers lower; newer or lower-mileage examples cost more.
- How quickly does the BMW 3 Series depreciate?
- A new BMW 3 Series typically loses about 44% of its value over the first three years, then depreciates more slowly. Buying at three to five years old avoids the steepest part of the curve.
- What insurance group is the BMW 3 Series?
- The BMW 3 Series sits in insurance group 30 of 50 — the middle of the scale. Exact premiums depend on the trim (some versions sit a few groups higher or lower), your age, postcode and no-claims history.
- What goes wrong on a used BMW 3 Series?
- The most common age-related issues we track for the BMW 3 Series are: timing chain (n47 diesel, pre-2014) (typically around 60k+, £1,500–£2,500 to put right); egr cooler / inlet manifold (b47 diesel) (typically around 80k+, £600–£1,100 to put right); idrive screen / head unit (typically around Any, £300–£1,200 to put right). A full service history and a recent MOT with no advisories are the best protection.
- What does the BMW 3 Series cost to run?
- Expect around 44 mpg combined, £620 a year in road tax, about £380 for a standard annual service. The full cost-of-ownership table above breaks this down per year and per mile for the exact year and mileage you choose.
Answers are generated from this car's Forecourt data — DVSA MOT records, DfT licensing statistics and our valuation model — and update with the weekly data refresh.