Overview - Charge Air Hose Connections

• 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 appropriate Electronic 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.

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

Courtesy of AUDI

• 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

• 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.

Tightening specifications for

Fig 1: Air Guide Hose Clamps Sizes

Courtesy of AUDI

1. Hose clamp -a- = 12 mm wide: 5 Nm
2. Hose clamp -b- = 9 mm wide: 3.4 Nm

Air duct hoses on air duct pipes/charge air cooler - installation position and tightening specification

Courtesy of AUDI

• The markings on the air duct hose must align with the housing edge or the notch on the air duct pipe/charge air cooler -arrows-.

-- Tighten the hose clamps to 5 Nm.