For 2015 3 Series Sedan Sixth generation BMW recommends to use: DOT 4 Class 6 brake fluids and genuine OEM brake fluid with a part number: 83130443026. To select the right brake fluid see the table below.
How much brake fluid you need to put into 2015 3 Series Sedan depends on conditions listed below.
in your garage to make future searches easy.
Condition
Volume
318 d with diesel straight-4 2.0 L 148 HP engine (2015.7–)
Changing brake fluid in 2015 BMW 3 Series Sedan is not as hard as it seems. The whole job will take about 20–40 minutes and will save you $50–$100.
Remove old brake fluid from the master cylinder reservoir with a turkey baster and clean the reservoir with lint-free cloth. Pour new fluid into the reservoir. Ask your buddy to help you bleed brakes. If no one is around buy a cheap non-return valve in a pharmacy. Bleed your brakes in a sequenced as described in owners manual until new fluid can be seen at all bleed screws. Constantly check brake fluid level in the master cylinder while you're bleeding brakes.
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2015 BMW 3 Series Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and BMW warranty policy for your region. In some regions DIY service may invalidate your warranty.
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow BMW 3 Series Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 2015 BMW 3 Series Sedan you're not only saving money, but also also improving your technical skills and learning something new.
2015 BMW 3 Series Sedan generations
In 2015 BMW offered 2 generations of the 3 Series Sedan. Brake fluid capacity may vary in different generations. Be sure that you are looking at the rigt modification.