A new BMW 3 Series transmission can cost as little as $1,800 or as much as $7,800 (and maybe even more!) depending on the type of transmission you choose, and a few other factors.
If you’re looking to have a professional do the work of swapping out your transmission, a BMW 3 Series transmission replacement costs between $3,000 and $8,000. Ultimately, the price you pay will depend on your vehicle’s specs, such as your model year, condition, location, and the extent of damage to your transmission.