2018 BMW 1 Series 3-door Hatchback transmission fastener tightening specifications

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Condition	Value

expand_moreAxle drive

expand_moreDrive shaft intermediate bearing

expand_more114 d with diesel straight-4 1.6 L 94 HP, 260 N⋅m at 1750 RPM engine (2012.7–)


On chassis	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_more116 d with diesel straight-4 1.6 L 114 HP engine (2011.12–)


On chassis	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAll other modifications

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 collar screw and pressure spring.
Second stage	90°90°90°


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

expand_morePropeller shaft


Insert nuts	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Replace nuts and let cure for 2 hours.

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_moreM24 central nuts


First stage	106.95 lbf⋅ft106.95 lbf⋅ft145 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


Insert nuts	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Replace nuts and let cure for 2 hours.

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_moreClutch


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

expand_moreClutch pressure plate


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreClutch slave cylinder


114 i with gasoline straight-4 1.6 L 101 HP engine (2011.12–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.
116 i with gasoline straight-4 1.6 L 134 HP engine (2011.12–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.
118 i with gasoline straight-4 1.6 L 134 HP engine (2015.3–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.
118 i with gasoline straight-4 1.6 L 168 HP engine (2012.7–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.
120 i with gasoline straight-4 1.6 L 174 HP engine (2015.3–)	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
Replace screws.
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace nuts.

expand_moreDifferential

expand_moreFront axle differential


On engine sump	103.26 lbf⋅ft103.26 lbf⋅ft140 N⋅m


Front axle differential oil drain plug	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.
Front axle differential oil filler plug	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.

expand_moreRear axle differential

expand_moreAt the axle support


M12	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
M14	121.7 lbf⋅ft121.7 lbf⋅ft165 N⋅m
Replace nuts.


Rear axle differential oil filler screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.

expand_moreGearbox

expand_moreGearbox flange connection at engine

expand_more114 i with gasoline straight-4 1.6 L 101 HP engine (2011.12–)

expand_moreM10


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

expand_moreM12


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

expand_moreM8


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

expand_more116 d with diesel straight-3 1.5 L 114 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
M12	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGS6-17DG gearbox


M12	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more116 i with gasoline straight-3 1.5 L 107 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


M10	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
M12	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGS6-17BG gearbox


M12	41.3 lbf⋅ft41.3 lbf⋅ft56 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 141 HP engine (2013.5–)

expand_moreM12


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

expand_moreM8


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

expand_more118 d xDrive with diesel straight-4 2.0 L 148 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


M12	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more118 i with gasoline straight-4 1.6 L 134 HP engine (2015.3–)

expand_moreM10


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

expand_moreM12


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

expand_moreM8


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

expand_more118 i with gasoline straight-4 1.6 L 168 HP engine (2012.7–)

expand_moreM10


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

expand_moreM12


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

expand_moreM8


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

expand_more120 d with diesel straight-4 2.0 L 161 HP engine (2012.7–)

expand_moreAluminium screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°
Third stage	20°20°20°

expand_moreM10


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

expand_moreM12


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

expand_more120 d with diesel straight-4 2.0 L 188 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


M12	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGS6-45DZ gearbox


M12	48.68 lbf⋅ft48.68 lbf⋅ft66 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more120 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.2–)

expand_moreM12


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

expand_moreM8


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

expand_more125 d with diesel straight-4 2.0 L 208 HP engine (2011.12–)

expand_moreAluminium screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°
Third stage	20°20°20°

expand_moreM10


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

expand_moreM12


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

expand_more125 i Flex with gasoline straight-4 2.0 L 215 HP engine (2014.8–)

expand_moreAluminium screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°
Third stage	20°20°20°

expand_moreM10


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


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

expand_more125 i with gasoline straight-4 2.0 L 215 HP engine (2011.12–)

expand_moreAluminium screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°
Third stage	20°20°20°

expand_moreM10


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


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

expand_more125 i with gasoline straight-4 2.0 L 235 HP engine (2013.3–)

expand_moreAluminium screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
Second stage	130°130°130°
Third stage	20°20°20°

expand_moreM10


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


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

expand_moreAll other modifications

expand_moreM10


Hexagon head screws	36.14 lbf⋅ft36.14 lbf⋅ft49 N⋅m
Torx screws	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m

expand_moreM12


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

expand_moreM8


Hexagon head screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Torx screws	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m


Torque converter	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.

expand_moreGearbox lubrication


Distributor gearbox oil filler screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreGearbox oil drain plug

expand_more114 d with diesel straight-4 1.6 L 94 HP, 260 N⋅m at 1750 RPM engine (2012.7–)

expand_moreGS6-17DG gearbox


M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more114 i with gasoline straight-4 1.6 L 101 HP engine (2011.12–)

expand_moreGS6-17BG/DG gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18 × 1,5 screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 d with diesel straight-3 1.5 L 114 HP engine (2015.3–)


GA8HP50Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGS6-17DG gearbox


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 d with diesel straight-4 1.6 L 114 HP engine (2011.12–)

expand_moreGS6-17DG gearbox


M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 i with gasoline straight-3 1.5 L 107 HP engine (2015.3–)


GA8HP50Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGS6-17BG gearbox


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 141 HP engine (2013.5–)


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 148 HP engine (2015.3–)


GA8HP50Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_more120 d with diesel straight-4 2.0 L 161 HP engine (2012.7–)

expand_moreGA8HP45Z gearbox


Plastic oil sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more120 d with diesel straight-4 2.0 L 188 HP engine (2015.3–)


GA8HP50Z gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
GS6-45DZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more120 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.2–)


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more125 d with diesel straight-4 2.0 L 208 HP engine (2011.12–)

expand_moreGA8HP45Z gearbox


Plastic oil sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications

expand_moreGA8HP45Z gearbox


Plastic oil sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGS6-17BG gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.
M18 × 1,5 screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreGearbox oil filler plug

expand_more114 d with diesel straight-4 1.6 L 94 HP, 260 N⋅m at 1750 RPM engine (2012.7–)

expand_moreGS6-17DG gearbox


M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more114 i with gasoline straight-4 1.6 L 101 HP engine (2011.12–)

expand_moreGS6-17BG/DG gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18 × 1,5 screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 d with diesel straight-3 1.5 L 114 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


Without special tool	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGS6-17DG gearbox


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 d with diesel straight-4 1.6 L 114 HP engine (2011.12–)

expand_moreGS6-17DG gearbox


M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more116 i with gasoline straight-3 1.5 L 107 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


Without special tool	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGS6-17BG gearbox


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M18	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 141 HP engine (2013.5–)


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 148 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


Without special tool	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more120 d with diesel straight-4 2.0 L 161 HP engine (2012.7–)

expand_moreGA8HP45Z gearbox


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


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more120 d with diesel straight-4 2.0 L 188 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


Without special tool	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


GS6-45DZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more120 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.2–)


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more125 d with diesel straight-4 2.0 L 208 HP engine (2011.12–)

expand_moreGA8HP45Z gearbox


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


GS6-45DZ/BZ gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications

expand_moreGA8HP45Z gearbox


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

expand_moreGS6-17BG gearbox


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.
M18 × 1,5 screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreGearbox oil sump

expand_more116 d with diesel straight-3 1.5 L 114 HP engine (2015.3–)

expand_moreGA8HP50Z gearbox


Steel screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreGA8HP50Z gearbox aluminium screws


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

expand_moreAll other modifications

expand_moreGA8HP45Z 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_more118 d xDrive with diesel straight-4 2.0 L 141 HP engine (2013.5–)

expand_moreAt the gearbox bracket


M12	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more118 d xDrive with diesel straight-4 2.0 L 148 HP engine (2015.3–)

expand_moreAt the gearbox


M12	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m


On chassis	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_more120 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.2–)

expand_moreAt the gearbox bracket


M12	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m

expand_moreOn chassis


M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreAll other modifications


On chassis	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGearbox mounting

expand_more118 d xDrive with diesel straight-4 2.0 L 141 HP engine (2013.5–)


Screws 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_more120 d xDrive with diesel straight-4 2.0 L 181 HP engine (2012.2–)


Screws 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_moreAll other modifications


Screws at the gearbox bracket	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
On chassis	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m

expand_moreGearbox support

expand_more116 d with diesel straight-3 1.5 L 114 HP engine (2015.3–)

expand_moreAt the gearbox


M10	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m

expand_moreAll other modifications


At the gearbox	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 2018 BMW 1 Series 3-door Hatchback 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 1 Series 3-door Hatchback 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 2018 BMW 1 Series 3-door Hatchback you're not only saving money, but also also improving your technical skills and learning something new.

2018 BMW 1 Series 3-door Hatchback Second generation LCI Transmission Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 1 Series 3-door Hatchback Second generation LCI model years

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