expand_moreFront axle brake caliper mounting support
Floating caliper brake
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Replace screws.
Front axle brake disc
11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Replace bolts.
Wheel speed sensor
5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
expand_moreFront axle steering
Lower steering column joint
17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Clean thread, use new screws and do not retighten screws any further.
expand_moreSteering gear
At the subframe
41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace screws.
Steering gear heat protection plate
5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
expand_moreSteering wheel
expand_moreM14
At the steering column
45.73 lbf⋅ft45.73 lbf⋅ft62 N⋅m
expand_moreTrack rod end on stub axle
M14
129.07 lbf⋅ft129.07 lbf⋅ft175 N⋅m
Replace nuts.
Track rod end on track rod
23.6 lbf⋅ft23.6 lbf⋅ft32 N⋅m
Track rod on steering gear
77.44 lbf⋅ft77.44 lbf⋅ft105 N⋅m
expand_moreFront axle suspension
expand_moreSuspension strut bearing pedestal
expand_moreOn chassis (M8)
First stage
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage
90°90°90°
expand_moreShock-absorber piston rod
M12
47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m
Replace nuts.
expand_moreSuspension strut
First stage
32.45 lbf⋅ft32.45 lbf⋅ft44 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
expand_moreWheel suspension
expand_moreFront axle drive shaft
expand_moreM16 central screws
First stage
154.89 lbf⋅ft154.89 lbf⋅ft210 N⋅m
Replace collar screw and pressure spring.
Second stage
90°90°90°
Stabiliser mounting at the stabiliser
41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace nuts.
Stabiliser mounting at suspension strut
41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace nuts.
Stabilizer mounting at the subframe
20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Replace nuts.
expand_moreSupport joint at the stub axle
expand_more335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2011.10–2013.7)
expand_moreM10
Screws
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use a new screw and re-tap the thread.
expand_moreM14
Nuts
59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace nuts.
All other modifications
129.07 lbf⋅ft129.07 lbf⋅ft175 N⋅m
Replace nuts.
expand_moreSupport joint at the transverse control arm
expand_more335 i xDrive with gasoline straight-6 3.0 L 322 HP engine (2011.10–2013.7)
expand_moreM14
Nuts
59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace nuts.
expand_moreFront suspension cross-brace
expand_moreM10
First stage
41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Use new screws.
Second stage
90°90°90°
expand_moreLower front transverse control arm
expand_moreAt the subframe
First stage
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
On stub axle
129.07 lbf⋅ft129.07 lbf⋅ft175 N⋅m
Replace nuts.
expand_moreLower rear transverse control arm
expand_moreAt the subframe
First stage
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace screws and nuts.
Second stage
90°90°90°
On stub axle
129.07 lbf⋅ft129.07 lbf⋅ft175 N⋅m
Replace nuts.
expand_moreWheel hub wheel bearing
First stage
59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace bolts.
Second stage
90°90°90°
expand_moreWheels and tires
expand_moreTire pressure sensors
Union nuts
5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Wheel attachment
103.26 lbf⋅ft103.26 lbf⋅ft140 N⋅m
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.
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. Front suspension fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.