2003 Opel Signum transmission fastener tightening specifications

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Condition	Value

expand_moreAxle drive


Drive shaft intermediate bearing	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m

expand_moreFront axle drive shaft

expand_moreCentral nuts


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace nuts.
Second stage	45° detach
Third stage	184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m

expand_moreClutch

expand_moreClutch pressure plate

expand_more1.8 with gasoline straight-4 1.8 L 121 HP at 6000 RPM, 165 N⋅m at 4600 RPM engine (2003.5–)


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Tighten new screws crosswise, use screw-locking compound.
M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Tighten new screws crosswise, use screw-locking compound.

expand_more2.0 Turbo with gasoline straight-4 2.0 L 173 HP at 5500 RPM, 265 N⋅m at 2500 RPM engine (2003.5–)


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws and nuts.
M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Replace screws and nuts.

expand_more2.2 direct with gasoline straight-4 2.2 L 153 HP engine (2003.5–)


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws. Use screw-locking compound.
M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Replace screws. Use screw-locking compound.

expand_more3.0 V6 CDTI with diesel V6 3.0 L 174 HP at 4000 RPM, 350 N⋅m at 1800 RPM engine (2003.5–)


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m


All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Tighten the screws crosswise.

expand_moreClutch slave cylinder


With concentric slave cylinder	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Use new screws with the screw- locking compound.

expand_moreGear shifting

expand_moreBack-up lamp switch


F17+ gearbox	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.
F35 gearbox	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreGearbox

expand_moreGearbox flange connection at engine


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M12	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreGearbox lubrication

expand_moreGearbox oil drain plug


AF 23 gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace sealing rings.
AF 33 gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace sealing rings.
F23 gearbox	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
F40 gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
M32 gearbox	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
VT20-E gearbox	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreGearbox oil filler plug


AF 23 gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace sealing rings.
AF 33 gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace sealing rings.
AF 40 gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
F40 gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
F23 gearbox	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
F40 gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
M32 gearbox	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreGearbox oil sump


F17+ gearbox	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
Replace sealing rings.

expand_moreOil control plug


AF 40 gearbox	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreF17+ gearbox


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Second stage	45–180°45–180°45–180°


F23 gearbox	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
F35 gearbox	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
F40 gearbox	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
VT20-E gearbox	8.11 lbf⋅ft8.11 lbf⋅ft11 N⋅m

expand_moreGearbox mounting

expand_moreAll Opel diesel V6 3.0 L Y 30 DT engines


Front	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Rear	59 lbf⋅ft59 lbf⋅ft80 N⋅m
At the gearbox


All other modifications	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m


Gearbox support	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

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

2003 Opel Signum A Transmission Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Opel Signum A model years

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