2012 BMW 6 Series Convertible transmission fastener tightening specifications

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Condition	Value

expand_moreAxle drive

expand_moreDrive shaft intermediate bearing

expand_moreOn engine sump


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreFront axle drive shaft

expand_moreM16 central screws


First stage	154.89 lbf⋅ft154.89 lbf⋅ft210 N⋅m
Replace screws.
Second stage	90°90°90°


Propeller shaft intermediate bearing	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_morePropeller shaft

expand_moreInsert nuts


First stage	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace nuts and let cure for 2 hours.
Second stage	90° detach.
Third stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m

expand_moreM12 screws (class 10.9)


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws and nuts.
Second stage	90°90°90°

expand_moreRear axle drive shaft

expand_moreM27 central nuts


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace nuts.
Second stage	45°45°45°

expand_moreTransfer case propeller shaft front axle

expand_moreM8


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreTransfer case propeller shaft rear axle

expand_moreInsert nuts


First stage	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace nuts and let cure for 2 hours.
Second stage	90° detach.
Third stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m

expand_moreScrews (M12 10.9)


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws and nuts.
Second stage	90°90°90°

expand_moreDifferential

expand_moreDifferential cover


M12	103.26 lbf⋅ft103.26 lbf⋅ft140 N⋅m

expand_moreFront axle differential

expand_moreOn engine sump


M12	103.26 lbf⋅ft103.26 lbf⋅ft140 N⋅m

expand_moreFront axle differential oil drain plug


M22	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.

expand_moreFront axle differential oil filler plug


M22	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.

expand_moreRear axle differential

expand_moreAt the axle support


M14	129.07 lbf⋅ft129.07 lbf⋅ft175 N⋅m
Replace nuts.

expand_moreAt the axle support (M12)


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreRear axle differential oil filler screws


M22	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.

expand_moreGearbox

expand_moreGearbox flange connection at engine

expand_more640 d with diesel straight-6 3.0 L 308 HP engine (2011.9–)

expand_moreGA8HP70Z gearbox M10 screws


Torx screws	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreGA8HP70Z gearbox M12 screws


Torx screws	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreGA8HP70Z gearbox M6 screws


Torx screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreGA8HP70Z gearbox M8 screws


Torx screws	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)

expand_moreGA8HP45Z gearbox


M8 × 50 screws	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGA8HP45Z gearbox aluminium screws M10 × 85


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	180–200°180–200°180–200°

expand_moreGA8HP45Z gearbox aluminium screws M12


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°

expand_moreGA8HP45Z gearbox M12


Steel screws	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreAll other modifications

expand_moreGA8HP70Z gearbox M10 screws


Torx screws	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreGA8HP70Z gearbox M12 screws


Torx screws	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreGA8HP70Z gearbox M6 screws


Torx screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreGA8HP70Z gearbox M8 screws


Torx screws	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreTorque converter

expand_moreBMW gasoline V8 4.4 L N63 B44 A 402 HP


M10 screws (class 10.9)	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace screws.


All other modifications	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
Replace screws.

expand_moreGearbox lubrication

expand_moreDistributor gearbox oil control screws

expand_more650 i xDrive with gasoline V8 4.4 L 402 HP engine (2011.6–)


M22	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreDistributor gearbox oil drain plug

expand_more650 i xDrive with gasoline V8 4.4 L 402 HP engine (2011.6–)


ATC35L transfer case	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreDistributor gearbox oil filler screws

expand_moreAll other modifications


ATC35L transfer case	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreGearbox oil drain plug

expand_more640 d with diesel straight-6 3.0 L 308 HP engine (2011.9–)


GA8HP70Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)


GA8HP45Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll other modifications

expand_moreGA8HP70Z gearbox


M18 × 1,5 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGearbox oil filler plug

expand_more640 d with diesel straight-6 3.0 L 308 HP engine (2011.9–)


GA8HP70Z gearbox	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)


GA8HP45Z gearbox	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications

expand_moreGA8HP70Z gearbox


M18 × 1,5 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGearbox oil sump

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)

expand_moreGA8HP45Z gearbox


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreAll other modifications

expand_moreGA8HP70Z gearbox


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreGearbox mounting

expand_moreGearbox cross support

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)

expand_moreAt the gearbox bracket


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications


At the gearbox bracket	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m
On chassis	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGearbox mounting

expand_more640 d with diesel straight-6 3.0 L 308 HP engine (2011.9–)

expand_moreScrews at the gearbox bracket


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAt the crossmember


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more640 i with gasoline straight-6 3.0 L 315 HP engine (2011.3–)


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications

expand_moreScrews at the gearbox bracket


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGearbox support

expand_moreAll other modifications

expand_moreAt the gearbox


M10	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m

expand_moreTransfer case


Transfer box onto transmission flange connection	31.72 lbf⋅ft31.72 lbf⋅ft43 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 6 Series Convertible 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.

Maintenance Items

Engine Fastener Tightening Specifications
Front Suspension Fastener Tightening Specifications
Rear Suspension Fastener Tightening Specifications
Transmission Fastener Tightening Specifications

Service Intervals

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 6 Series Convertible 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 6 Series Convertible you're not only saving money, but also also improving your technical skills and learning something new.

2012 BMW 6 Series Convertible Second generation Transmission Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 6 Series Convertible Second generation model years

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