2025 Hyundai i40 CW engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system


Intake manifold	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
Intake manifold support	13.28–17.7 lbf⋅ft13.28–17.7 lbf⋅ft18–24 N⋅m

expand_moreAuxiliary assemblies


Air-conditioning compressor	16.23–22.13 lbf⋅ft16.23–22.13 lbf⋅ft22–30 N⋅m

expand_moreAlternator

expand_moreAll Hyundai gasoline straight-4 1.6 Liters engines


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M14	22.13–29.5 lbf⋅ft22.13–29.5 lbf⋅ft30–40 N⋅m


All Hyundai diesel straight-4 1.7 Liters engines	29.5–44.25 lbf⋅ft29.5–44.25 lbf⋅ft40–60 N⋅m

expand_moreAll Hyundai gasoline straight-4 2.0 Liters engines


M8	16.23–23.6 lbf⋅ft16.23–23.6 lbf⋅ft22–32 N⋅m
M10	22.13–29.5 lbf⋅ft22.13–29.5 lbf⋅ft30–40 N⋅m

expand_moreAuxiliary drive belt deflection pulley


Top	18.44–25.81 lbf⋅ft18.44–25.81 lbf⋅ft25–35 N⋅m
Bottom	18.44–25.81 lbf⋅ft18.44–25.81 lbf⋅ft25–35 N⋅m

expand_moreAuxiliary drive belt tensioner


All Hyundai diesel straight-4 engines	19.18–22.13 lbf⋅ft19.18–22.13 lbf⋅ft26–30 N⋅m

expand_moreAll Hyundai gasoline straight-4 engines


M8	16.23–23.6 lbf⋅ft16.23–23.6 lbf⋅ft22–32 N⋅m
M10	22.13–29.5 lbf⋅ft22.13–29.5 lbf⋅ft30–40 N⋅m

expand_moreGenerator bracket


1.6 GDI with gasoline straight-4 1.6 L 133 HP engine (2011.7–)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Vacuum pump	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreCarburetion

expand_moreFuel-distributing pipe


All Hyundai gasoline straight-4 1.6 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	10.33–16.23 lbf⋅ft10.33–16.23 lbf⋅ft14–22 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m

expand_moreHigh-pressure line


All Hyundai gasoline straight-4 1.6 Liters engines	19.18–23.6 lbf⋅ft19.18–23.6 lbf⋅ft26–32 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	17.7–20.65 lbf⋅ft17.7–20.65 lbf⋅ft24–28 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	19.18–23.6 lbf⋅ft19.18–23.6 lbf⋅ft26–32 N⋅m

expand_moreHigh-pressure pump


All Hyundai gasoline straight-4 1.6 Liters engines	8.85–11.06 lbf⋅ft8.85–11.06 lbf⋅ft12–15 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Screws must be replaced.


High-pressure pump pulley	47.94–55.32 lbf⋅ft47.94–55.32 lbf⋅ft65–75 N⋅m

expand_moreCharging


Charge air pipes	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreCooling system

expand_moreCoolant pump


All Hyundai gasoline straight-4 1.6 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m


Coolant pump pulley	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreCoolant thermostat housing

expand_moreAll Hyundai diesel straight-4 engines


Cap	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
Otherwise	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m


All Hyundai gasoline straight-4 engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreFan wheel


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	3.69–5.9 lbf⋅ft3.69–5.9 lbf⋅ft5–8 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


All Hyundai diesel straight-4 engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll Hyundai gasoline straight-4 engines


M6	8.85–10.33 lbf⋅ft8.85–10.33 lbf⋅ft12–14 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCylinder head screws

expand_moreAll Hyundai diesel straight-4 engines

Figure 1. Cylinder head, Cylinder head screws, Hyundai diesel straight-4.


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Screws must be replaced. See figure 1.
Second stage	88–92°88–92°88–92°
Third stage	118–122°118–122°118–122°

expand_moreAll Hyundai gasoline straight-4 engines

Figure 2. Cylinder head, Cylinder head screws, Hyundai gasoline straight-4.


First stage	23.6–26.55 lbf⋅ft23.6–26.55 lbf⋅ft32–36 N⋅m
Screws must be replaced. See figure 2.
Second stage	90–95°90–95°90–95°
Third stage	90–95°90–95°90–95°


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

expand_moreEngine block

expand_moreConnecting rod bearing


All Hyundai diesel straight-4 engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All Hyundai gasoline straight-4 engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Screws must be replaced.

expand_moreCrankcase ventilation


1.6 GDI with gasoline straight-4 1.6 L 133 HP engine (2011.7–)	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m


Crankshaft central screws	169.64–184.39 lbf⋅ft169.64–184.39 lbf⋅ft230–250 N⋅m

expand_moreCrankshaft pulley


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	147.51–154.89 lbf⋅ft147.51–154.89 lbf⋅ft200–210 N⋅m

expand_moreDrive plate


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	88.51–95.88 lbf⋅ft88.51–95.88 lbf⋅ft120–130 N⋅m
Screws must be replaced.

expand_moreFlywheel


All Hyundai diesel straight-4 engines	51.63–59 lbf⋅ft51.63–59 lbf⋅ft70–80 N⋅m
All Hyundai gasoline straight-4 engines	88.51–95.88 lbf⋅ft88.51–95.88 lbf⋅ft120–130 N⋅m

expand_moreMain bearing

expand_moreAll Hyundai diesel straight-4 engines

expand_moreLong screws


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Screws must be replaced.
Second stage	90–94°90–94°90–94°


Short screws	23.6–26.55 lbf⋅ft23.6–26.55 lbf⋅ft32–36 N⋅m
Screws must be replaced.

expand_moreAll Hyundai gasoline straight-4 engines


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Screws must be replaced.
Second stage	120–125°120–125°120–125°

expand_moreEngine control

expand_moreCamshaft timing chain guide rail


All Hyundai gasoline straight-4 1.6 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


Camshaft timing chain tensioner	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreCamshaft timing chain tensioning rail


All Hyundai gasoline straight-4 1.6 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


Camshaft timing gear	51.63–54.58 lbf⋅ft51.63–54.58 lbf⋅ft70–74 N⋅m
Screws must be replaced.

expand_moreControl unit for intake valve timing


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m


Inlet camshaft wheel	47.2–54.58 lbf⋅ft47.2–54.58 lbf⋅ft64–74 N⋅m
Screws must be replaced.
Outlet camshaft wheel	47.2–54.58 lbf⋅ft47.2–54.58 lbf⋅ft64–74 N⋅m
Screws must be replaced.

expand_moreTiming case

expand_moreAll Hyundai gasoline straight-4 1.6 Liters engines


M6	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Hyundai diesel straight-4 1.7 Liters engines


M8 × 23 screws	18.44–22.13 lbf⋅ft18.44–22.13 lbf⋅ft25–30 N⋅m
M8 × 32 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Hyundai gasoline straight-4 2.0 Liters engines


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
M10	29.5–36.88 lbf⋅ft29.5–36.88 lbf⋅ft40–50 N⋅m

expand_moreTiming case cover


M6	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
M8 × 60 screws	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
M8 × 70 screws	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
M10 × 90 screws	30.98–38.35 lbf⋅ft30.98–38.35 lbf⋅ft42–52 N⋅m

expand_moreEngine lubrication


Oil cooler	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Oil drain plug	25.08–32.45 lbf⋅ft25.08–32.45 lbf⋅ft34–44 N⋅m
Sealing rings must be replaced.

expand_moreOil filter


All Hyundai gasoline straight-4 1.6 Liters engines	8.85–11.8 lbf⋅ft8.85–11.8 lbf⋅ft12–16 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	23.6–29.5 lbf⋅ft23.6–29.5 lbf⋅ft32–40 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	8.85–11.8 lbf⋅ft8.85–11.8 lbf⋅ft12–16 N⋅m


Oil filter housing	14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m

expand_moreOil pressure sensor


All Hyundai gasoline straight-4 1.6 Liters engines	5.9–8.85 lbf⋅ft5.9–8.85 lbf⋅ft8–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	10.33–16.23 lbf⋅ft10.33–16.23 lbf⋅ft14–22 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	5.9–8.85 lbf⋅ft5.9–8.85 lbf⋅ft8–12 N⋅m

expand_moreOil pump

expand_more1.6 GDI with gasoline straight-4 1.6 L 133 HP engine (2011.7–)


Oil pump cover	7.38–10.33 lbf⋅ft7.38–10.33 lbf⋅ft10–14 N⋅m


Oil sump	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreEngine management

expand_moreCamshaft sensor


All Hyundai diesel straight-4 engines	5.9–7.38 lbf⋅ft5.9–7.38 lbf⋅ft8–10 N⋅m
All Hyundai gasoline straight-4 engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m


Charge air pressure sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCrankshaft sensor


All Hyundai diesel straight-4 engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Hyundai gasoline straight-4 engines	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m


Glow plugs	11.06–14.75 lbf⋅ft11.06–14.75 lbf⋅ft15–20 N⋅m

expand_moreKnock sensor


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m

expand_moreLambda sensor


2.0 GDI with gasoline straight-4 2.0 L 174 HP engine (2011.7–)	29.5–36.88 lbf⋅ft29.5–36.88 lbf⋅ft40–50 N⋅m

expand_moreEngine mounting


Engine bracket	42.78–51.63 lbf⋅ft42.78–51.63 lbf⋅ft58–70 N⋅m
Engine mounting	47.94–59 lbf⋅ft47.94–59 lbf⋅ft65–80 N⋅m
Subframe	73.76–84.82 lbf⋅ft73.76–84.82 lbf⋅ft100–115 N⋅m
Screws and nuts must be replaced.

expand_moreTorque arm


At the subframe	81.13–95.88 lbf⋅ft81.13–95.88 lbf⋅ft110–130 N⋅m
Otherwise	36.88–47.94 lbf⋅ft36.88–47.94 lbf⋅ft50–65 N⋅m


Torque support bracket	81.13–95.88 lbf⋅ft81.13–95.88 lbf⋅ft110–130 N⋅m

expand_moreExhaust system


Catalytic converter bracket	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Diesel particulate filter	29.5–44.25 lbf⋅ft29.5–44.25 lbf⋅ft40–60 N⋅m
Parts must be replaced.
Exhaust manifold	22.13–25.81 lbf⋅ft22.13–25.81 lbf⋅ft30–35 N⋅m
Nuts must be replaced.

expand_moreExhaust manifold heat shield(s)


All Hyundai gasoline straight-4 1.6 Liters engines	5.9–8.85 lbf⋅ft5.9–8.85 lbf⋅ft8–12 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	10.33–14.75 lbf⋅ft10.33–14.75 lbf⋅ft14–20 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	5.9–8.85 lbf⋅ft5.9–8.85 lbf⋅ft8–12 N⋅m

expand_moreExhaust pipe


Clamps	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Otherwise	29.5–44.25 lbf⋅ft29.5–44.25 lbf⋅ft40–60 N⋅m
Screws and nuts must be replaced.


Exhaust pipe bracket	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreExhaust pipe rear


Clamps	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Otherwise	29.5–44.25 lbf⋅ft29.5–44.25 lbf⋅ft40–60 N⋅m
Nuts must be replaced.

expand_moreFuel supply

expand_moreFuel lines


1.6 GDI with gasoline straight-4 1.6 L 133 HP engine (2011.7–)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFuel pump


Cap	1.48–2.21 lbf⋅ft1.48–2.21 lbf⋅ft2–3 N⋅m

expand_moreIgnition system


Spark plugs	11.06–18.44 lbf⋅ft11.06–18.44 lbf⋅ft15–25 N⋅m

expand_moreStart system

expand_moreStarter


All Hyundai gasoline straight-4 1.6 Liters engines	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All Hyundai diesel straight-4 1.7 Liters engines	29.5–44.25 lbf⋅ft29.5–44.25 lbf⋅ft40–60 N⋅m
All Hyundai gasoline straight-4 2.0 Liters engines	33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2025 Hyundai i40 CW 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 Hyundai warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Chassis and Body Fastener Tightening Specifications
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 Hyundai i40 CW 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 2025 Hyundai i40 CW you're not only saving money, but also also improving your technical skills and learning something new.

2025 Hyundai i40 CW First generation facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Hyundai i40 CW First generation facelift model years

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