Audi RS5/S4/S5 Coolant Breather Line / Tube 8W0121081DS

OEM Part #: 8W0-121-081-DS (8W0121081DS)

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Coolant Breather Line / Tube, positioned lower on the vehicle, serves to manage the coolant overflow and promote efficient circulation within the cooling system. This part is essential for preventing pressure build-up and possible leaks. Commonly referred to as an overflow hose or breather, it addresses issues related to coolant flow in various Audi models. Compatible with 2018-2020 Audi S4 (3.0L), S5 (3.0L), S5 Sportback (3.0L), RS5 (2.9L), and RS5 Sportback (2.9L). Notable OEM part numbers include 8W0121081DS and 8W0121081Q. This part is ideal for replacement when experiencing coolant system irregularities.

Specifications

Specifications for Coolant Breather Line / Tube 8W0121081DS
Fits Vehicle ModelRS5, S4, S5
Fits Vehicle MakeAudi
OEM Part No8W0-121-081-DS (8W0121081DS)
Compatible OEM Part No 8W0-121-081-Q
CategoryRadiator / Coolant

Compatible Vehicles

Fits 17 vehicle configurations across 1 make, 2017-2020.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • RS5 2018-2019 · 3 variants 3 with notes
  • S4 2018-2020 · 3 variants 3 with notes
  • S5 2017-2020 · 11 variants 11 with notes
View all 17 vehicle configurations — 17 with fitment notes
Full vehicle fitment list for Coolant Breather Line / Tube 8W0121081DS
Year Make Model Trim Engine Note
2017 Audi S5 Convertible 3.0L V6 Supercharged For Vehicles with Production Date Between 06/26/17 and 11/04/19
2017 Audi S5 Coupe 3.0L V6 Supercharged For Vehicles with Production Date Between 06/26/17 and 10/14/19
2018 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2018 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 07/08/19
2018 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 11/04/19
2018 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2018 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2019 Audi RS5 Coupe 2.9L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2019 Audi RS5 Hatchback 2.9L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2019 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 07/08/19
2019 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 11/04/19
2019 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2019 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2020 Audi S4 Sedan 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 07/08/19
2020 Audi S5 Convertible 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 11/04/19
2020 Audi S5 Coupe 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19
2020 Audi S5 Hatchback 3.0L V6 Turbo For Vehicles with Production Date Between 06/26/17 and 10/14/19

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