2004 Alfa Romeo 156 Crosswagon Q4 fastener tightening specifications

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Condition	Value

expand_moreEngine tightening torques

expand_moreAir intake system


Intake manifold	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAuxiliary assemblies


Auxiliary drive belt deflection pulley	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
Auxiliary drive belt tensioner	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAuxiliary drive belt tensioner


M8	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAlternator


M10	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
M12	46.47–56.79 lbf⋅ft46.47–56.79 lbf⋅ft63–77 N⋅m


Servo pump pulley	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m
Servo steering pump	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreVacuum pump


M6	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m

expand_moreCarburetion


Fuel-distributing pipe	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreHigh-pressure pump


M8	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m


High-pressure pump pulley	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
Injection hoses	16.23–17.7 lbf⋅ft16.23–17.7 lbf⋅ft22–24 N⋅m
Injection nozzle (injector)	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreCooling system


Coolant pump	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreCylinder head

expand_moreCylinder head screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_moreValve cover

expand_moreBearing casing at the cylinder head


M8	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreEngine block


Balance shaft gear wheel	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreConnecting rod bearing


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	60°60°60°

expand_moreCrankshaft central screws


M12	238.23–263.31 lbf⋅ft238.23–263.31 lbf⋅ft323–357 N⋅m
Left-hand thread


Crankshaft pulley	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreFlywheel


M12	106.21–129.81 lbf⋅ft106.21–129.81 lbf⋅ft144–176 N⋅m
Replace screws.

expand_moreMain bearing


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	100°100°100°


Vibration damper	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreEngine control


Balance shaft toothed belt tension pulley	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreCamshaft timing gear

expand_moreM12


Central screws	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m


Inlet camshaft wheel	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m
Toothed wheel
Outlet camshaft wheel	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m
Toothed wheel
Toothed belt tensioning roller	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m
Toothed belt tightener	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreEngine management


Camshaft sensor	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m
Glow plugs	5.16–6.64 lbf⋅ft5.16–6.64 lbf⋅ft7–9 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket


At the gearbox (M12)	50.15–61.22 lbf⋅ft50.15–61.22 lbf⋅ft68–83 N⋅m
At the gearbox (M16)	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m
On engine mounting	58.27–71.54 lbf⋅ft58.27–71.54 lbf⋅ft79–97 N⋅m

expand_moreSubframe

expand_moreOn chassis


M10	59.74–73.02 lbf⋅ft59.74–73.02 lbf⋅ft81–99 N⋅m
M12	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreTorque arm


M10	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m

expand_moreExhaust system


Exhaust manifold	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m
Exhaust pipe	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreFuel supply

expand_moreFuel lines


High-pressure side	16.23–17.7 lbf⋅ft16.23–17.7 lbf⋅ft22–24 N⋅m

expand_moreStart system


Starter	17.7–22.13 lbf⋅ft17.7–22.13 lbf⋅ft24–30 N⋅m

expand_morePower transmission tightening torques

expand_moreAxle drive

expand_moreDrive shaft intermediate bearing


M8	18.44–20.65 lbf⋅ft18.44–20.65 lbf⋅ft25–28 N⋅m

expand_moreFront axle drive shaft

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°


M10	42.78–51.63 lbf⋅ft42.78–51.63 lbf⋅ft58–70 N⋅m
M8	26.55–32.45 lbf⋅ft26.55–32.45 lbf⋅ft36–44 N⋅m

expand_morePropeller shaft intermediate bearing


M10	35.4–39.09 lbf⋅ft35.4–39.09 lbf⋅ft48–53 N⋅m

expand_morePropeller shaft


M8	28.03–33.93 lbf⋅ft28.03–33.93 lbf⋅ft38–46 N⋅m

expand_moreRear axle drive shaft

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°


M10	42.78–51.63 lbf⋅ft42.78–51.63 lbf⋅ft58–70 N⋅m
M8	26.55–32.45 lbf⋅ft26.55–32.45 lbf⋅ft36–44 N⋅m

expand_moreClutch


Clutch pressure plate	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreClutch slave cylinder


Hydraulic lines	10.33–16.23 lbf⋅ft10.33–16.23 lbf⋅ft14–22 N⋅m

expand_moreGearbox

expand_moreGearbox flange connection at engine


M10	36.88–44.99 lbf⋅ft36.88–44.99 lbf⋅ft50–61 N⋅m
M12	53.1–64.91 lbf⋅ft53.1–64.91 lbf⋅ft72–88 N⋅m

expand_moreGearbox lubrication

expand_moreGearbox oil drain plug

expand_moreC.530.6 gearbox


M18	11.8–19.18 lbf⋅ft11.8–19.18 lbf⋅ft16–26 N⋅m
M22	22.13–35.4 lbf⋅ft22.13–35.4 lbf⋅ft30–48 N⋅m

expand_moreGearbox mounting

expand_moreGearbox support


M10	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m

expand_moreSuspension front tightening torques

expand_moreFront axle brake

expand_moreBrake hose


At the brake caliper	9.59–11.06 lbf⋅ft9.59–11.06 lbf⋅ft13–15 N⋅m

expand_moreBrake line

expand_moreFront axle


At the brake caliper	10.33–13.28 lbf⋅ft10.33–13.28 lbf⋅ft14–18 N⋅m

expand_moreFront axle brake caliper


M10	35.4–38.35 lbf⋅ft35.4–38.35 lbf⋅ft48–52 N⋅m

expand_moreFront axle brake caliper mounting support


M14	100.31–123.91 lbf⋅ft100.31–123.91 lbf⋅ft136–168 N⋅m


Front axle brake disc	5.9–9.59 lbf⋅ft5.9–9.59 lbf⋅ft8–13 N⋅m
Wheel speed sensor	2.95–5.16 lbf⋅ft2.95–5.16 lbf⋅ft4–7 N⋅m

expand_moreFront axle steering

expand_moreSteering gear


M14	86.29–105.47 lbf⋅ft86.29–105.47 lbf⋅ft117–143 N⋅m


Track rod end on stub axle	21.39–26.55 lbf⋅ft21.39–26.55 lbf⋅ft29–36 N⋅m
Track rod end on track rod	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreFront axle suspension


Shock-absorber piston rod	22.86–25.81 lbf⋅ft22.86–25.81 lbf⋅ft31–35 N⋅m

expand_moreSuspension strut


Connection clamp at the suspension strut	59.74–65.64 lbf⋅ft59.74–65.64 lbf⋅ft81–89 N⋅m
Connection clamp at the transverse control arm	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m
On chassis	17.7–21.39 lbf⋅ft17.7–21.39 lbf⋅ft24–29 N⋅m

expand_moreWheel suspension

expand_moreFront axle drive shaft

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°


M10	42.78–51.63 lbf⋅ft42.78–51.63 lbf⋅ft58–70 N⋅m
M8	26.55–32.45 lbf⋅ft26.55–32.45 lbf⋅ft36–44 N⋅m


Stabiliser mounting at the stabiliser	28.03–34.67 lbf⋅ft28.03–34.67 lbf⋅ft38–47 N⋅m
Stabiliser mounting at the stub axle	28.03–34.67 lbf⋅ft28.03–34.67 lbf⋅ft38–47 N⋅m
Stabiliser mounting at suspension strut	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Stabilizer mounting at the subframe	19.18–23.6 lbf⋅ft19.18–23.6 lbf⋅ft26–32 N⋅m

expand_moreSupport joint at the stub axle

expand_moreNuts (M10)


Top	31.72–34.67 lbf⋅ft31.72–34.67 lbf⋅ft43–47 N⋅m

expand_moreNuts (M14)


Bottom	63.43–70.07 lbf⋅ft63.43–70.07 lbf⋅ft86–95 N⋅m

expand_moreUpper transverse control arm

expand_moreBearing pedestal


On chassis	29.5–36.14 lbf⋅ft29.5–36.14 lbf⋅ft40–49 N⋅m

expand_moreTrack control arm lower

expand_moreAt the subframe


M10	45.73–50.15 lbf⋅ft45.73–50.15 lbf⋅ft62–68 N⋅m


On stub axle	59.74–73.02 lbf⋅ft59.74–73.02 lbf⋅ft81–99 N⋅m

expand_moreWheel hub wheel bearing

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°

expand_moreWheels and tires

expand_moreWheel attachment


Chrome-plated	64.91–79.66 lbf⋅ft64.91–79.66 lbf⋅ft88–108 N⋅m
With Dacromet coating	57.53–69.33 lbf⋅ft57.53–69.33 lbf⋅ft78–94 N⋅m

expand_moreSuspension rear tightening torques

expand_moreRear axle brake

expand_moreRear axle brake caliper


M10	35.4–38.35 lbf⋅ft35.4–38.35 lbf⋅ft48–52 N⋅m


Rear axle brake caliper mounting support	34.67–42.78 lbf⋅ft34.67–42.78 lbf⋅ft47–58 N⋅m
Rear axle brake disc	5.9–9.59 lbf⋅ft5.9–9.59 lbf⋅ft8–13 N⋅m

expand_moreRear axle suspension


Rear axle shock absorber piston rod	63.43–69.33 lbf⋅ft63.43–69.33 lbf⋅ft86–94 N⋅m

expand_moreRear axle suspension strut


On chassis	44.25–54.58 lbf⋅ft44.25–54.58 lbf⋅ft60–74 N⋅m
On stub axle	81.87–99.57 lbf⋅ft81.87–99.57 lbf⋅ft111–135 N⋅m

expand_moreRear axle wheel suspension

expand_moreLower front transverse control arm


At the axle support	70.07–85.56 lbf⋅ft70.07–85.56 lbf⋅ft95–116 N⋅m
On stub axle	70.07–85.56 lbf⋅ft70.07–85.56 lbf⋅ft95–116 N⋅m

expand_moreLower rear transverse control arm


At the axle support	45.73–50.15 lbf⋅ft45.73–50.15 lbf⋅ft62–68 N⋅m
On stub axle	70.07–85.56 lbf⋅ft70.07–85.56 lbf⋅ft95–116 N⋅m

expand_moreRear axle carrier


On chassis	45.73–50.15 lbf⋅ft45.73–50.15 lbf⋅ft62–68 N⋅m

expand_moreRear axle drive shaft

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°


M10	42.78–51.63 lbf⋅ft42.78–51.63 lbf⋅ft58–70 N⋅m
M8	26.55–32.45 lbf⋅ft26.55–32.45 lbf⋅ft36–44 N⋅m

expand_moreRear axle longitudinal control arm


On chassis	45.73–50.15 lbf⋅ft45.73–50.15 lbf⋅ft62–68 N⋅m
On stub axle	86.29–95.15 lbf⋅ft86.29–95.15 lbf⋅ft117–129 N⋅m


Rear axle stabilizer mounting	5.16–5.9 lbf⋅ft5.16–5.9 lbf⋅ft7–8 N⋅m
Rear axle stabilizer support at the stabilizer	28.03–34.67 lbf⋅ft28.03–34.67 lbf⋅ft38–47 N⋅m
Rear axle stabilizer support at the suspension strut	28.03–34.67 lbf⋅ft28.03–34.67 lbf⋅ft38–47 N⋅m

expand_moreWheel hub wheel bearing

expand_moreCentral nuts


First stage	49.42–54.58 lbf⋅ft49.42–54.58 lbf⋅ft67–74 N⋅m
Second stage	62°62°62°

expand_moreWheels and tires

expand_moreWheel attachment


Chrome-plated	64.91–79.66 lbf⋅ft64.91–79.66 lbf⋅ft88–108 N⋅m
With Dacromet coating	57.53–69.33 lbf⋅ft57.53–69.33 lbf⋅ft78–94 N⋅m

When assembling your 2004 Alfa Romeo 156 Crosswagon Q4 it's important to tight threaded fasteners with Alfa Romeo prescribed torques using a torque wrench. If the torque values is lower then prescribed, bolt may unscrew itself and assembly may fall apart. If the torque value is higher then prescribed, bolt may simply break. The torque wrench allows you to tighten all bolts of the assembly with the same torque applied.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2004 Alfa Romeo 156 Crosswagon Q4 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 Alfa Romeo warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

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 Alfa Romeo 156 Crosswagon Q4 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 2004 Alfa Romeo 156 Crosswagon Q4 you're not only saving money, but also also improving your technical skills and learning something new.

Alfa Romeo 156 Crosswagon Q4 Series 1 model years

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2004
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2005

2004 Alfa Romeo 156 Crosswagon Q4 Series 1 Fastener Tightening Specifications

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Conquer your fears and never give up!

Alfa Romeo 156 Crosswagon Q4 Series 1 model years

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