Below you'll find the tightening torques for the Audi A3 4 in both Nm and ft/lbs. The first table contains the most-used torque settings. The tables after it contain all torque spec values I could find.

Most-used torque settings for Audi A3 4

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Oil pan	Drainage plug	26	19		8YA
Oil pan	Drainage plug	26	19		8YS
Wheels	Wheel bolts	120	89		8YA
Wheels	Wheel bolts	120	89		8YA
Wheels	Wheel bolts	120	89		8YS
Wheels	Wheel bolts	120	89		8YS

To make sure these are the correct tightening torque values, you can use the data below to verify this is the right model.

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All Torque Settings in Tables

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Oil pan	Drainage plug	26	19		8YA
Oil pan	Drainage plug	26	19		8YS
Oil filter	Oil filter housing cover	25	18		8YA
Oil filter	Oil filter housing cover	25	18		8YS
Glow plugs	Glow plugs	18	13		8YA
Engine mounts	Engine pipes bracket	7	5		8YA

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Wheel hub assembly	Front drive shaft to Wheel hub bolt	200	148		8YA
Wheel hub assembly	Front drive shaft to Wheel hub bolt	200	148		8YS

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Tie rod end	Tie rod end to Steering knuckle	20	15		8YA
Tie rod end	Tie rod end to Steering knuckle	20	15		8YS
Tie rod end	Tie rod end locknut	50	37		8YA
Tie rod end	Tie rod end locknut	50	37		8YS

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Disc brake	Front brake disc fastener	4	3		8YA
Disc brake	Front brake disc fastener	4	3		8YS
Disc brake	Front brake caliper	30	22		8YA
Disc brake	Front brake caliper fasteners	35	26		8YS
Disc brake	Rear brake caliper fasteners	35	26		8YA
Disc brake	Front brake caliper bracket	175	129		8YA
Disc brake	Front brake caliper bracket fasteners	190	140		8YS

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to
Wheels	Wheel bolts	120	89		8YA
Wheels	Wheel bolts	120	89		8YS
Struts	Front suspension strut lower fasteners	70	52		8YA
Struts	Front suspension strut lower fasteners	70	52		8YS
Shock absorbers/shocks	Front shock strut piston rod nut	60	44		8YA
Shock absorbers/shocks	Front shock strut piston rod nut	60	44		8YS
Shock absorbers/shocks	Rear shock absorber rod nut	25	18		8YA
Shock absorbers/shocks	Rear shock absorber rod nut	25	18		8YS
Shock absorbers/shocks	Front shock strut upper fasteners	15	11		8YA
Shock absorbers/shocks	Front shock strut upper fasteners	15	11		8YS
Shock absorbers/shocks	Rear shock absorber lower fastener	70	52		8YA
Shock absorbers/shocks	Rear shock absorber lower fastener	70	52		8YS
Shock absorbers/shocks	Rear shock absorber mount fasteners	50	37		8YA
Shock absorbers/shocks	Rear shock absorber mount fasteners	50	37		8YS
Stabilizer bar	Front stabilizer link to Stabilizer bar fastener	65	48		8YA
Stabilizer bar	Front stabilizer link to Stabilizer bar fastener	65	48		8YS
Sway bar links/Stabilizer links	Front stabilizer link to Shock strut fastener	65	48		8YA
Sway bar links/Stabilizer links	Front stabilizer link to Shock strut fastener	65	48		8YS
Control arm	Control arm to Rear subframe fastener	95	70		8YA
Control arm	Control arm to Rear subframe fastener	95	70		8YS
Control arm	Control arm to Rear knuckle fasteners	130	96		8YA
Control arm	Control arm to Rear knuckle fasteners	130	96		8YS

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Applies to