Overview - Charge Air Hose Connections

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

The hose connections as well as air duct pipes and hoses must be free of oil and grease before installing.
Secure all hose connections with hose clamps that match the ones used in series production. Refer to the Parts Information.
In order to be able to securely mount the air duct hoses on their connections, spray the bolts on the previously used screw-type clamps with rust remover before installing.

Tightening specification for

Fig 1: Air Guide Hose Clamps Sizes

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Hose clamp -a- = 12 mm wide: 5.5 Nm
Hose clamp -b- = 9 mm wide: 3.4 Nm

Hose clamps on the hooks on the pressure side -arrows-.

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To remove the air duct hose, the screw-type clamp must be loosened enough.
Loosened screw-type clamps can be reused.

A screw-type clamp -1- with hooks -arrows- may not be removed from the air duct hose.

Courtesy of AUDI OF AMERICA, LLC
If a screw-type clamp with hooks was removed from the air duct hose, the air duct hose must be replaced.
A new air duct hose will be delivered with the screw-type clamp installed.