in your garage to make future searches easy.

Condition Value
expand_moreAir intake system
expand_moreIntake manifold
expand_moreAll Audi gasoline straight-5 2.5 L CTSA engines
expand_moreLower section of intake manifold
Figure 1. Air intake system, Intake manifold, Audi gasoline straight-5 2.5 L CTSA, Lower section of intake manifold.
Figure 1. Air intake system, Intake manifold, Audi gasoline straight-5 2.5 L CTSA, Lower section of intake manifold.
First stage 5.16 lbf⋅ft
See figure 1.
Second stage 6.64 lbf⋅ft
expand_moreUpper section of intake manifold
First stage Screw in screw(s) by hand.
Second stage 6.64 lbf⋅ft
expand_moreAll Audi gasoline straight-5 2.5 L CZGA engines
First stage 5.16 lbf⋅ft
Second stage 6.64 lbf⋅ft
expand_moreIntake manifold support
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 6.64 lbf⋅ft
expand_moreAuxiliary assemblies
expand_moreAuxiliary drive belt deflection pulley
M6 5.9 lbf⋅ft
M8 14.75 lbf⋅ft
Auxiliary drive belt tensioner 25.81 lbf⋅ft
expand_moreAir-conditioning compressor
expand_moreAluminium screws
First stage 5.9 lbf⋅ft
Replace screws.
Second stage 180°
Steel screws 18.44 lbf⋅ft
Air-conditioning compressor bracket 16.96 lbf⋅ft
Tighten cross-wise.
Air-conditioning compressor pressure line 16.23 lbf⋅ft
Alternator 16.96 lbf⋅ft
Generator bracket 16.96 lbf⋅ft
Tighten cross-wise.
Tensioning device for air-conditioning compressor auxiliary drive belt 25.81 lbf⋅ft
expand_moreCarburetion
Fuel-distributing pipe 6.64 lbf⋅ft
expand_moreHigh-pressure line
Union nuts 19.91 lbf⋅ft
expand_moreHigh-pressure pump
First stage 3.69 lbf⋅ft
Tighten bolts uniformly in several passes.
Second stage 14.75 lbf⋅ft
expand_morePressure tube connection
On high-pressure pump 25.81 lbf⋅ft
On rail 29.5 lbf⋅ft
expand_moreCharging
expand_moreTurbo charger
Lower mounting 22.13 lbf⋅ft
Replace nuts.
expand_moreUpper fastening
Figure 2. Charging, Turbo charger, Upper fastening.
Figure 2. Charging, Turbo charger, Upper fastening.
First stage 11.06 lbf⋅ft
Replace nuts. See figure 2.
Second stage 24.34 lbf⋅ft
Third stage 24.34 lbf⋅ft
Control tensioner
Fourth stage 24.34 lbf⋅ft
Control tensioner
expand_moreTurbocharger coolant feed line
Banjo screws 28.03 lbf⋅ft
Replace sealing rings.
Screws 6.64 lbf⋅ft
expand_moreTurbocharger coolant return line
Banjo screws 28.03 lbf⋅ft
Replace sealing rings.
expand_moreTurbocharger oil feed line
Banjo screws 28.03 lbf⋅ft
Replace sealing rings.
Turbocharger oil return line 6.64 lbf⋅ft
expand_moreCooling system
Coolant pump 6.64 lbf⋅ft
expand_moreCoolant thermostat housing
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 4.43 lbf⋅ft
expand_moreFan wheel
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 3.69 lbf⋅ft
expand_moreRadiator mounting
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 5.9 lbf⋅ft
expand_moreCylinder head
expand_moreCamshaft bearing
expand_moreScrews 1 – 29
Figure 3. Cylinder head, Camshaft bearing, Screws 1 – 29.
Figure 3. Cylinder head, Camshaft bearing, Screws 1 – 29.
First stage Screw in screw(s) by hand.
Replace screws. See figure 3.
Second stage 5.9 lbf⋅ft
Screws need to be loosened or tightened in steps of 180°.
Third stage 5.9 lbf⋅ft
Control tensioner
Fourth stage 90°
expand_moreCylinder head screws
expand_moreScrews 1 – 12
Figure 4. Cylinder head, Cylinder head screws, Screws 1 – 12.
Figure 4. Cylinder head, Cylinder head screws, Screws 1 – 12.
First stage 7.38 lbf⋅ft
Replace screws. See figure 4.
Second stage 29.5 lbf⋅ft
Third stage 90°
Fourth stage 90°
expand_moreScrew 13
Fifth stage 5.9 lbf⋅ft
Replace screws.
Sixth stage 90°
expand_moreValve cover
Figure 5. Cylinder head, Valve cover.
Figure 5. Cylinder head, Valve cover.
First stage Screw in screw(s) by hand.
Note correct order of tensioning. See figure 5.
Second stage 7.38 lbf⋅ft
expand_moreEngine block
expand_moreConnecting rod bearing
First stage 33.19 lbf⋅ft
Replace screws.
Second stage 90°
Engine block closure screws 33.19 lbf⋅ft
Replace sealing rings.
expand_moreFlywheel
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreMain bearing
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreVibration damper
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreEngine control
expand_moreBottom part of the control unit housing
expand_moreScrews 1 – 7
Figure 6. Engine control, Bottom part of the control unit housing, Screws 1 – 7.
Figure 6. Engine control, Bottom part of the control unit housing, Screws 1 – 7.
First stage Screw in screw(s) by hand.
Replace screws. See figure 6.
expand_moreScrew 7
Second stage 3.69 lbf⋅ft
Fourth stage 5.9 lbf⋅ft
Sixth stage 90°
expand_moreScrews 1 – 6
Third stage 5.9 lbf⋅ft
Fifth stage 14.75 lbf⋅ft
Camshaft timing chain tensioner 6.64 lbf⋅ft
Camshaft timing chain tensioning rail 29.5 lbf⋅ft
expand_moreInlet camshaft wheel
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreIntermediate shaft chain sprocket
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
Oil pump drive chain tensioner 6.64 lbf⋅ft
expand_moreOutlet camshaft wheel
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreTop part of control unit housing
Figure 7. Engine control, Top part of control unit housing.
Figure 7. Engine control, Top part of control unit housing.
First stage Screw in screw(s) by hand.
See figure 7.
Second stage 6.64 lbf⋅ft
expand_moreEngine lubrication
Oil cooler 14.75 lbf⋅ft
Oil drain plug 18.44 lbf⋅ft
Replace sealing rings.
expand_moreOil filter
expand_moreRS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–)
Oil filter cover 14.75 lbf⋅ft
Slightly oil sealing lips.
expand_moreOil filter housing
expand_moreAll Audi gasoline straight-5 2.5 L CTSA engines
Oil filter cover 18.44 lbf⋅ft
On the engine block 14.75 lbf⋅ft
All Audi gasoline straight-5 2.5 L CZGA engines 14.75 lbf⋅ft
expand_moreOil pressure sensor
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 14.75 lbf⋅ft
Oil pump 14.75 lbf⋅ft
expand_moreOil pump chain wheel
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreOil sump
expand_moreOil sump lower part
First stage Screw in screw(s) by hand.
Replace screws.
Second stage 5.9 lbf⋅ft
Third stage 45°
expand_moreOil sump top part
Figure 8. Engine lubrication, Oil sump, Oil sump top part.
Figure 8. Engine lubrication, Oil sump, Oil sump top part.
First stage Screw in screw(s) by hand.
Replace screws. See figure 8.
Second stage 14.75 lbf⋅ft
Third stage 90°
expand_moreEngine management
Camshaft sensor 6.64 lbf⋅ft
expand_moreCharge air pressure sensor
RS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–) 6.64 lbf⋅ft
Crankshaft sensor 3.69 lbf⋅ft
Knock sensor 14.75 lbf⋅ft
Lambda sensor 40.57 lbf⋅ft
expand_moreEngine mounting
expand_moreEngine mounting
expand_moreOn chassis (M10)
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreOn chassis (M8)
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreOn the engine block
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreSubframe
expand_moreM12 × 100 screws
First stage 51.63 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreM12 × 90 screws
First stage 51.63 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreTorque arm
expand_moreAt the subframe
First stage 73.76 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreAt the gearbox
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreExhaust system
Catalytic converter 16.96 lbf⋅ft
Replace nuts. Use hot screw paste.
Catalytic converter bracket 14.75 lbf⋅ft
expand_moreExhaust manifold
expand_moreRS 2.5 quattro with gasoline straight-5 2.5 L 335 HP at 5300 RPM, 450 N⋅m at 1600 RPM engine (2013.5–)
First stage 11.06 lbf⋅ft
Tighten crosswise from inside to outside.
Second stage 24.34 lbf⋅ft
Third stage 24.34 lbf⋅ft
Control tensioner
Fourth stage 24.34 lbf⋅ft
Control tensioner
Lower mounting 22.13 lbf⋅ft
Exhaust pipe bracket 16.96 lbf⋅ft
Exhaust pipe rear 16.96 lbf⋅ft
expand_morePrimary catalytic converter
Clamps 5.16 lbf⋅ft
expand_moreFuel supply
expand_moreFuel lines
expand_moreRS 2.5 quattro with gasoline straight-5 2.5 L 306 HP, 420 N⋅m at 1500 RPM engine (2013.10–)
Union nuts 19.91 lbf⋅ft
expand_moreIgnition system
Spark plugs 22.13 lbf⋅ft
expand_moreStart system
expand_moreStarter
M12 59 lbf⋅ft

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2021 Audi Q3 RS 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 Audi warranty policy for your region. In some regions DIY service may invalidate your warranty.

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 Audi Q3 RS 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 2021 Audi Q3 RS you're not only saving money, but also also improving your technical skills and learning something new.

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