in your garage to make future searches easy.

Condition Value
expand_moreFront axle brake disc diameter
For 292 × 22 mm brake discs 11.5 in
For 300 × 24 mm brake discs 11.81 in
For 312 × 24 mm brake discs 1.02 ft
For 330 × 24 mm brake discs 1.08 ft
For 338 × 26 mm brake discs 1.11 ft
For 348 × 30 mm brake discs 1.14 ft
For 360 × 30 mm brake discs 1.18 ft
expand_moreFront axle brake disc thickness
For 292 × 22 mm brake discs 0.87 in
For 300 × 24 mm brake discs 0.94 in
For 312 × 24 mm brake discs 0.94 in
For 330 × 24 mm brake discs 0.94 in
For 338 × 26 mm brake discs 1.02 in
For 348 × 30 mm brake discs 1.18 in
For 360 × 30 mm brake discs 1.18 in
expand_moreFront axle brake disc minimal thickness
For 292 × 22 mm brake discs 0.77 in
For 300 × 24 mm brake discs 0.85 in
For 312 × 24 mm brake discs 0.85 in
For 330 × 24 mm brake discs 0.85 in
For 338 × 26 mm brake discs 0.93 in
For 348 × 30 mm brake discs 1.09 in
For 360 × 30 mm brake discs 1.09 in
expand_morePerforated brake discs
For 292 × 22 mm brake discs 0.8 in
For 300 × 24 mm brake discs 0.88 in
For 312 × 24 mm brake discs 0.88 in
For 330 × 24 mm brake discs 0.88 in
For 338 × 26 mm brake discs 0.96 in
For 348 × 30 mm brake discs 1.12 in
For 360 × 30 mm brake discs 1.12 in
expand_moreFront axle brake lining minimal thickness
Without backing plate 0.15 in
Maximum lateral run-out of front axle brake disc 0.00039 in
expand_moreParking brake minimal lining thickness
Without backing plate 0.059 in
expand_moreRear axle brake disc diameter
For 296 × 10 mm brake discs 11.65 in
For 300 × 20 mm brake discs 11.81 in
For 324 × 22 mm brake discs 1.06 ft
For 336 × 22 mm brake discs 1.1 ft
For 350 × 24 mm brake discs 1.15 ft
expand_moreRear axle brake disc thickness
For 296 × 10 mm brake discs 0.39 in
For 300 × 20 mm brake discs 0.79 in
For 324 × 22 mm brake discs 0.87 in
For 336 × 22 mm brake discs 0.87 in
For 350 × 24 mm brake discs 0.94 in
expand_moreRear axle minimal brake disc thickness
For 296 × 10 mm brake discs 0.3 in
For 300 × 20 mm brake discs 0.69 in
For 324 × 22 mm brake discs 0.77 in
For 336 × 22 mm brake discs 0.77 in
For 350 × 24 mm brake discs 0.85 in
expand_morePerforated brake discs
For 296 × 10 mm brake discs 0.33 in
For 300 × 20 mm brake discs 0.72 in
For 324 × 22 mm brake discs 0.8 in
For 336 × 22 mm brake discs 0.8 in
For 350 × 24 mm brake discs 0.88 in
expand_moreRear axle brake drum diameter
expand_moreAll other modifications
Parking brake 6.3 in
expand_moreRear axle minimal brake lining thickness
expand_moreAll other modifications
Without backing plate 0.15 in

Brake system is the most important system in your 2012 3 Series Sedan. Check pads and disks from time to time and replace them as they worn below minimum thickness allowed by BMW.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2012 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.

Conquer your fears and never give up!

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 2012 BMW 3 Series Sedan you're not only saving money, but also also improving your technical skills and learning something new.

2012 BMW 3 Series Sedan generations

In 2012 BMW offered 2 generations of the 3 Series Sedan. Brake system specifications may vary in different generations. Be sure that you are looking at the rigt modification.

BMW 3 Series Sedan Fifth generation LCI model years

Units:
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