2008 Alfa Romeo 147 Q2 fastener tightening specifications

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Condition	Value

expand_moreEngine tightening torques

expand_moreAir intake system

expand_moreIntake manifold


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAll other modifications


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

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


M10	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
M8	16.23–20.65 lbf⋅ft16.23–20.65 lbf⋅ft22–28 N⋅m

expand_moreAuxiliary drive belt tensioner


Hexagon head screws	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreAuxiliary drive belt tensioner


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

expand_moreAir-conditioning compressor


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

expand_moreGenerator bracket


M10	31.72–39.09 lbf⋅ft31.72–39.09 lbf⋅ft43–53 N⋅m
M8	14.01–16.96 lbf⋅ft14.01–16.96 lbf⋅ft19–23 N⋅m

expand_moreServo pump pulley


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

expand_moreServo steering pump


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

expand_moreVacuum pump


M8	15.49–19.18 lbf⋅ft15.49–19.18 lbf⋅ft21–26 N⋅m

expand_moreCarburetion

expand_moreInjection nozzle (injector)


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAll other modifications


M8	19.18–23.6 lbf⋅ft19.18–23.6 lbf⋅ft26–32 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


M7	10.33–12.54 lbf⋅ft10.33–12.54 lbf⋅ft14–17 N⋅m

expand_moreCylinder head screws

expand_moreAlfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
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_moreAll other modifications


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use bolts only four times.
Second stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_moreValve cover


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAll other modifications


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

expand_moreEngine block

expand_moreConnecting rod bearing


First stage	17.7–19.18 lbf⋅ft17.7–19.18 lbf⋅ft24–26 N⋅m
Second stage	60°60°60°

expand_moreCrankshaft central screws

expand_moreAlfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM


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

expand_moreAll other modifications


M16	154.15–170.38 lbf⋅ft154.15–170.38 lbf⋅ft209–231 N⋅m
Left-hand thread

expand_moreCrankshaft pulley


M8	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

expand_moreMain bearing

expand_moreM12


First stage	17.7–19.18 lbf⋅ft17.7–19.18 lbf⋅ft24–26 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

expand_moreBalance shaft toothed belt tension pulley


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


Camshaft timing gear	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreDrive belt tensioner device


Hexagon head screws	19.91–24.34 lbf⋅ft19.91–24.34 lbf⋅ft27–33 N⋅m

expand_moreInlet camshaft wheel


M8	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m

expand_moreOutlet camshaft wheel


M12	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreToothed belt guard


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


Toothed belt tensioning roller	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreToothed belt tightener


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
All other modifications	15.49–19.18 lbf⋅ft15.49–19.18 lbf⋅ft21–26 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil sump

expand_moreAlfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM


M10	36.88–44.99 lbf⋅ft36.88–44.99 lbf⋅ft50–61 N⋅m
M6	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m
M8	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreAll other modifications


M6	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m
M8	16.96–20.65 lbf⋅ft16.96–20.65 lbf⋅ft23–28 N⋅m

expand_moreEngine management

expand_moreCamshaft sensor


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


Glow plugs	9.59–11.8 lbf⋅ft9.59–11.8 lbf⋅ft13–16 N⋅m
Knock sensor	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Lambda sensor	30.24–36.88 lbf⋅ft30.24–36.88 lbf⋅ft41–50 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


M10	53.1–64.91 lbf⋅ft53.1–64.91 lbf⋅ft72–88 N⋅m
M12	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreTorque arm

expand_moreAlfa Romeo gasoline straight-4 2.0 L AR 32310 148 HP at 6300 RPM, 187 N⋅m at 3500 RPM

expand_moreAt the top rear side


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

expand_moreScrews (M12)


At the bracket	50.15–61.22 lbf⋅ft50.15–61.22 lbf⋅ft68–83 N⋅m
Front	50.15–61.22 lbf⋅ft50.15–61.22 lbf⋅ft68–83 N⋅m

expand_moreNuts (M8)


At the bracket	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m


Rear screw (M8)	23.6–28.76 lbf⋅ft23.6–28.76 lbf⋅ft32–39 N⋅m

expand_moreAll other modifications


M12	50.15–61.22 lbf⋅ft50.15–61.22 lbf⋅ft68–83 N⋅m
M16	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreExhaust system

expand_moreExhaust manifold


Alfa Romeo diesel straight-4 1.9 L 937 A5.000 148 HP at 4000 RPM, 305 N⋅m at 2000 RPM	16.96–24.34 lbf⋅ft16.96–24.34 lbf⋅ft23–33 N⋅m

expand_moreAll other modifications


M8	17.7–22.13 lbf⋅ft17.7–22.13 lbf⋅ft24–30 N⋅m

expand_moreStart system

expand_moreStarter


M8	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


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreFront axle drive shaft


M10	29.5–38.35 lbf⋅ft29.5–38.35 lbf⋅ft40–52 N⋅m
M8	25.81–31.72 lbf⋅ft25.81–31.72 lbf⋅ft35–43 N⋅m

expand_morePropeller shaft intermediate bearing


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreClutch

expand_moreClutch master cylinder


M8	13.28–17.7 lbf⋅ft13.28–17.7 lbf⋅ft18–24 N⋅m


Clutch pressure plate	18.44–22.86 lbf⋅ft18.44–22.86 lbf⋅ft25–31 N⋅m

expand_moreClutch slave cylinder


With concentric slave cylinder	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreGearbox

expand_moreGearbox flange connection at engine


M10	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
M12	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_moreGearbox lubrication

expand_moreGearbox oil drain plug


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 oil filler plug


M22	21.39–31.72 lbf⋅ft21.39–31.72 lbf⋅ft29–43 N⋅m

expand_moreGearbox mounting


M10	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreGearbox support


M10	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
M12	64.91 lbf⋅ft64.91 lbf⋅ft88 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
At the brake line	9.59–11.06 lbf⋅ft9.59–11.06 lbf⋅ft13–15 N⋅m


Front axle brake caliper	86.29 lbf⋅ft86.29 lbf⋅ft117 N⋅m

expand_moreFront axle brake caliper mounting support


M12	81.87–90.72 lbf⋅ft81.87–90.72 lbf⋅ft111–123 N⋅m


Front axle brake disc	7.38–10.33 lbf⋅ft7.38–10.33 lbf⋅ft10–14 N⋅m
Wheel speed sensor	5.16–6.64 lbf⋅ft5.16–6.64 lbf⋅ft7–9 N⋅m

expand_moreFront axle steering

expand_moreSteering gear

expand_moreAt the subframe


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

expand_moreTrack rod end on stub axle


M10	23.6–28.76 lbf⋅ft23.6–28.76 lbf⋅ft32–39 N⋅m

expand_moreTrack rod end on track rod


M14	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m

expand_moreFront axle suspension

expand_moreSuspension strut bearing pedestal


M12	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreShock-absorber piston rod


M12	22.13–26.55 lbf⋅ft22.13–26.55 lbf⋅ft30–36 N⋅m

expand_moreSuspension strut

expand_moreBearing pedestal


On chassis	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreM12


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

expand_moreWheel suspension

expand_moreFront axle drive shaft


M10	29.5–38.35 lbf⋅ft29.5–38.35 lbf⋅ft40–52 N⋅m
M8	25.81–31.72 lbf⋅ft25.81–31.72 lbf⋅ft35–43 N⋅m

expand_moreStabiliser mounting at the stabiliser


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

expand_moreStabiliser mounting at suspension strut


M10	30.24–36.88 lbf⋅ft30.24–36.88 lbf⋅ft41–50 N⋅m

expand_moreSupport joint at the transverse control arm


M14	50.15–70.07 lbf⋅ft50.15–70.07 lbf⋅ft68–95 N⋅m

expand_moreFront axle suspension


M10	53.1–64.91 lbf⋅ft53.1–64.91 lbf⋅ft72–88 N⋅m
M12	79.66–97.36 lbf⋅ft79.66–97.36 lbf⋅ft108–132 N⋅m

expand_moreUpper transverse control arm


M10	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m
On stub axle	31.72–34.67 lbf⋅ft31.72–34.67 lbf⋅ft43–47 N⋅m

expand_moreTrack control arm lower

expand_moreAt the crossmember


M10	52.37–58.27 lbf⋅ft52.37–58.27 lbf⋅ft71–79 N⋅m

expand_moreOn stub axle


M14	63.43–70.07 lbf⋅ft63.43–70.07 lbf⋅ft86–95 N⋅m

expand_moreWheel hub wheel bearing


On stub axle	56.05–61.96 lbf⋅ft56.05–61.96 lbf⋅ft76–84 N⋅m
Replace screws.

expand_moreOn wheel hub


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

expand_moreWheels and tires

expand_moreWheel attachment


Aluminium rims	64.91–79.66 lbf⋅ft64.91–79.66 lbf⋅ft88–108 N⋅m
Steel rims	56.79–70.07 lbf⋅ft56.79–70.07 lbf⋅ft77–95 N⋅m

expand_moreSuspension rear tightening torques

expand_moreRear axle brake

expand_moreRear axle brake caliper


M10	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m


Rear axle brake caliper mounting support	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
Rear axle brake disc	7.38–10.33 lbf⋅ft7.38–10.33 lbf⋅ft10–14 N⋅m

expand_moreRear axle wheel speed sensor


M6	5.16–6.64 lbf⋅ft5.16–6.64 lbf⋅ft7–9 N⋅m

expand_moreRear axle suspension

expand_moreRear axle shock absorber

expand_moreOn stub axle


M12	81.87–99.57 lbf⋅ft81.87–99.57 lbf⋅ft111–135 N⋅m

expand_moreRear axle shock absorber piston rod


M14	53.84–56.79 lbf⋅ft53.84–56.79 lbf⋅ft73–77 N⋅m

expand_moreRear axle suspension strut


M12	81.87–99.57 lbf⋅ft81.87–99.57 lbf⋅ft111–135 N⋅m
Replace screws and nuts.

expand_moreOn chassis


M14	53.84–56.79 lbf⋅ft53.84–56.79 lbf⋅ft73–77 N⋅m

expand_moreRear axle wheel suspension

expand_moreLower front transverse control arm

expand_moreAt the crossmember


M12	46.47–56.79 lbf⋅ft46.47–56.79 lbf⋅ft63–77 N⋅m

expand_moreOn stub axle


M12	81.87–99.57 lbf⋅ft81.87–99.57 lbf⋅ft111–135 N⋅m

expand_moreRear axle longitudinal control arm


On stub axle	86.29–95.15 lbf⋅ft86.29–95.15 lbf⋅ft117–129 N⋅m
Replace nuts.

expand_moreRear axle stabilizer mounting


M8	26.55–32.45 lbf⋅ft26.55–32.45 lbf⋅ft36–44 N⋅m

expand_moreRear axle stabilizer support at the stabilizer


M10	30.24–36.88 lbf⋅ft30.24–36.88 lbf⋅ft41–50 N⋅m

expand_moreRear axle stabilizer support at the suspension strut


M10	30.24–36.88 lbf⋅ft30.24–36.88 lbf⋅ft41–50 N⋅m

expand_moreWheel hub wheel bearing


M24	224.22–247.82 lbf⋅ft224.22–247.82 lbf⋅ft304–336 N⋅m
Replace nuts.

expand_moreWheels and tires

expand_moreWheel attachment


Aluminium rims	64.91–79.66 lbf⋅ft64.91–79.66 lbf⋅ft88–108 N⋅m
Steel rims	56.79–70.07 lbf⋅ft56.79–70.07 lbf⋅ft77–95 N⋅m

When assembling your 2008 Alfa Romeo 147 Q2 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 2008 Alfa Romeo 147 Q2 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 147 Q2 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 2008 Alfa Romeo 147 Q2 you're not only saving money, but also also improving your technical skills and learning something new.

2008 Alfa Romeo 147 Q2 Series 1 Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Alfa Romeo 147 Q2 Series 1 model years

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