2003 BMW 3 Series Compact transmission fastener tightening specifications

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Condition	Value

expand_moreAxle drive


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

expand_morePropeller shaft

expand_moreM12 screws (class 10.9)


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Second stage	90°90°90°

expand_moreRear axle drive shaft

expand_moreM10 silver screws with ribbing


Torx screws	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace screws.


M24	184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
Replace the nut and lightly oil the contact surfaces.
M27	221.27 lbf⋅ft221.27 lbf⋅ft300 N⋅m
Replace the nut and lightly oil the contact surfaces.

expand_moreBlack screws with ribbing M8 × 40


Torx screws	47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m
Replace screws.

expand_moreSilver screws with ribbing M8 × 40


Torx screws	38.35 lbf⋅ft38.35 lbf⋅ft52 N⋅m
Replace screws.

expand_moreSilver screws with ribbing (M10 × 23, class 10.9)


Torx screws	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Replace screws.

expand_moreClutch

expand_moreClutch pressure plate

expand_moreBMW gasoline straight-4 1.6 L N40 B16 A 103 HP at 6000 RPM, 150 N⋅m at 4300 RPM


M8 screws (class 10.9)	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
Replace screws.
M8 screws (class 8.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.

expand_moreZNS screws


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Second stage	85–95°85–95°85–95°

expand_moreAll other modifications


M8 screws (class 10.9)	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
M8 screws (class 8.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Clutch slave cylinder	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreGearbox

expand_moreGearbox flange connection at engine

expand_moreM10


Screws	36.14 lbf⋅ft36.14 lbf⋅ft49 N⋅m
Torx screws	28.03–31.72 lbf⋅ft28.03–31.72 lbf⋅ft38–43 N⋅m

expand_moreM12


Screws	54.58 lbf⋅ft54.58 lbf⋅ft74 N⋅m
Torx screws	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m

expand_moreM6


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

expand_moreM8


Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Torx screws	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreGearbox lubrication

expand_moreGearbox oil drain plug

expand_moreBMW gasoline straight-4 1.6 L N40 B16 A 103 HP at 6000 RPM, 150 N⋅m at 4300 RPM


S5D 250G gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreBMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP


A4S 270R gearbox	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Gearbox A4S 310R	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
GS6-37BZ and GS6-37DZ gearboxes	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreBMW gasoline straight-6 2.5 L M54 B25 (256S5) 189 HP


A4S 270R gearbox	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Gearbox A4S 310R	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreGS5S31BZ gearbox


SMG	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreGS6S37BZ gearbox


SMG	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


S5D 200G and S5D 250G gearboxes	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreAll other modifications


A4S 270R gearbox	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Gearbox A4S 310R	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreGS6-37DZ/BZ gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreGS6-37DZ/BZ and GS6-53BZ/DZ gearboxes


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


S5D 200G, S5D 250G, S5D 310Z, and S5D 320Z gearboxes	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
S6S 420G and S6S 560G gearboxes	38.35 lbf⋅ft38.35 lbf⋅ft52 N⋅m

expand_moreGearbox oil filler plug

expand_moreBMW gasoline straight-4 1.6 L N40 B16 A 103 HP at 6000 RPM, 150 N⋅m at 4300 RPM


S5D 250G gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreBMW diesel straight-4 2.0 L M47 D20 (204D4) 148 HP


A4S 270R gearbox	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
Gearbox A4S 310R	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
GS6-37BZ and GS6-37DZ gearboxes	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreBMW gasoline straight-6 2.5 L M54 B25 (256S5) 189 HP


A4S 270R gearbox	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
Gearbox A4S 310R	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m

expand_moreGS5S31BZ gearbox


SMG	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreGS6S37BZ gearbox


SMG	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


S5D 200G and S5D 250G gearboxes	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreAll other modifications


A4S 270R gearbox	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m
Gearbox A4S 310R	24.34 lbf⋅ft24.34 lbf⋅ft33 N⋅m

expand_moreGS6-37DZ/BZ gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreGS6-37DZ/BZ and GS6-53BZ/DZ gearboxes


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


S5D 200G, S5D 250G, S5D 310Z, and S5D 320Z gearboxes	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
S6S 420G and S6S 560G gearboxes	38.35 lbf⋅ft38.35 lbf⋅ft52 N⋅m

expand_moreGearbox mounting

expand_moreGearbox cross support

expand_moreAt the gearbox


M10	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
M8	14.01–15.49 lbf⋅ft14.01–15.49 lbf⋅ft19–21 N⋅m

expand_moreOn chassis


M10	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
M12	53.84 lbf⋅ft53.84 lbf⋅ft73 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 BMW 3 Series Compact 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 3 Series Compact 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 2003 BMW 3 Series Compact you're not only saving money, but also also improving your technical skills and learning something new.

2003 BMW 3 Series Compact Second generation Transmission Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 3 Series Compact Second generation model years

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