2017 Audi A1 S1 engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system


Intake manifold	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreIntake manifold support


On intake manifold	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt tensioner


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	45°45°45°

expand_moreAir-conditioning compressor

expand_moreAluminium screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace aluminum screws.
Second stage	180°180°180°


Steel screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Alternator	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreGenerator bracket


First stage	Tighten by hand
Tighten the screws evenly from inside to outside in several steps.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	90°90°90°

expand_moreCarburetion


Fuel-distributing pipe	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreHigh-pressure line


On high-pressure pump	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Oil thread.
On rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
oil lightly

expand_moreHigh-pressure pump


First stage	Tighten by hand
Replace screws.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_morePressure tube connection


On high-pressure pump	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace components.

expand_moreCharging


Charge air pipes	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreTurbo charger


At the cylinder head	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.


Turbocharger bracket	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Turbocharger coolant feed line	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Turbocharger coolant return line	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Turbocharger oil feed line	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Turbocharger oil return line	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCooling system


Coolant pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten the screws crosswise.

expand_moreCoolant pump drive wheel


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use new screw.
Second stage	90°90°90°


Fan wheel	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Radiator mounting	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

Figure 1. Cylinder head, Camshaft bearing.


First stage	Tighten bolt(s) until hand-tight.
Use new screws. See figure 1.
Second stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Tighten bearing caps in the sequence of their numbering.
Third stage	90°90°90°

expand_moreCylinder head screws

Figure 2. Cylinder head, Cylinder head screws.


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws. See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreScrew 11


Fourth stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Fifth stage	90°90°90°

expand_moreEngine block

expand_moreBalance shaft module

expand_moreOn the engine block


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreConnecting rod bearing


First stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Replace screw, wash and slightly oil.
Second stage	90°90°90°

expand_moreCrankcase ventilation


On camshaft housing	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten screws crosswise.

expand_moreCrankshaft central screws


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreFlywheel


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreMain bearing


First stage	Tighten by hand
Use new screws. See figure 3.

expand_moreScrews 1 – 10


Second stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Third stage	90°90°90°

expand_moreScrew 11


Fourth stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Fifth stage	90°90°90°

expand_moreEngine control


Balance shaft timing chain guide rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Balance shaft timing chain tension rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreBottom part of the control unit housing


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Tighten screws crosswise.
Second stage	45°45°45°


Camshaft adjuster	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Left-hand thread
Control drive chain guide rail	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreControl drive chain tensioner


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreControl drive timing chain slip rail


Balance shaft timing chain	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreControl unit for intake valve timing


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°


Drive chain balance shaft tensioner	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m

expand_moreIntermediate shaft chain sprocket


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	Turn sprocket wheel
Third stage	for freedom from play
Fourth stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Fifth stage	90°90°90°


Oil pump drive chain tensioner	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tension rail bearing screws	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreToothed belt guard


Coolant pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m


Top part of control unit housing	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten screws crosswise.

expand_moreEngine lubrication


Oil cooler	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Oil drain plug	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace sealing rings.

expand_moreOil filter


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace the O ring.

expand_moreOil filter housing


First stage	Screw in screws by hand.
Use new screws and tighten them crosswise.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	90°90°90°


Oil pressure sensor	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil pump


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreOil sump

expand_moreOil sump top part (screws 1 – 14)

Figure 4. Engine lubrication, Oil sump, Oil sump top part (screws 1 – 14).


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
See figure 4.

expand_moreOil sump top part (screws 1 and 2)


Second stage	180°180°180°

expand_moreOil sump top part (screw 10)


Fourth stage	180°180°180°

expand_moreOil sump top part (screws 11 – 14)


Fifth stage	90°90°90°

expand_moreOil sump top part (screws 3 – 9)


Third stage	45°45°45°

expand_morePlastic oil sump

Figure 5. Engine lubrication, Oil sump, Plastic oil sump.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
See figure 5.
Second stage	90°90°90°

expand_moreSheet-steel sump

Figure 6. Engine lubrication, Oil sump, Sheet-steel sump.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
See figure 6.
Second stage	45°45°45°

expand_moreEngine management


Camshaft sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Charge air pressure sensor	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreCrankshaft sensor


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

expand_moreKnock sensor


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	90°90°90°


Lambda sensor	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Use hot screw paste

expand_moreEngine mounting

expand_moreOn engine bracket


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreSubframe


First stage	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreTorque arm

expand_moreAt the subframe


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	90°90°90°
Replace screws.

expand_moreAt the gearbox


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	90°90°90°
Replace screws.

expand_moreExhaust system

expand_moreCatalytic converter


Clamps	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreCatalytic converter bracket


First stage	Screw in new screw(s) manually as far as it goes.
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Exhaust manifold heat shields	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreExhaust pipe


Clamps	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreExhaust pipe bracket


On chassis	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreExhaust pipe rear


Clamps	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreIgnition system


Spark plugs	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2017 Audi A1 S1 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.

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 Audi A1 S1 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 2017 Audi A1 S1 you're not only saving money, but also also improving your technical skills and learning something new.

2017 Audi A1 S1 First generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Audi A1 S1 First generation model years

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