Thumbnail Filmstrip of Audi Coolant Expansion Tank Cap Images
The coolant expansion tank cap maintains an elevated cooling system pressure to raise the boiling point of the liquid coolant, while venting excessive pressure to atmosphere. These caps have a limited service life; they should be pressure-tested as part of a routine maintenance schedule, and replaced as part of any major cooling system overhaul. Comes with seal. Part number: 2Q0121321A
Fits A, Q, R, S, TT series models 2015-2023
- Brand: Audi
- No applicable data -
