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Tech Article

Audi C5 A6 Quattro 4.2 V8 Sizes of nuts attaching air conditioning hoses to radiator area

Last Updated: 09/24/2017

Parts Group: Air conditioning hose

This article discusses the nuts that attach the flexible air conditioning hoses to the steel attachment points in the radiator area, for the C5 Audi A6 with the 4.2 V8 made 1999-2004. with the main focus being on the nut sizes. If you're not here for the technical analysis but would rather buy used parts from us, guaranteed to work and fit, then please select the link below.

Air conditioning hose (Ends at radiator with a 24mm nut), as on: C5 A6 4.2 4-door and Allroad
Air conditioning hose (Ends at radiator with a 30mm nut), as on: C5 A6 4.2 4-door and Allroad

The information herein is based on our project car, a 2000 Audi.

One of the nuts is 24mm and the otther is 30mm.