Audi RS7/S6/S7 Coolant Reservoir Hose / Line 4G0122109F

OEM Part #: 4G0-122-109-F (4G0122109F)

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The Audi coolant reservoir hose, OEM part number 4G0122109F, is essential for maintaining optimal engine temperature and performance. Located on the left inner side of the engine bay, this water hose connects the coolant reservoir to the engine cooling system, facilitating the proper circulation of antifreeze. It plays a critical role in preventing overheating by ensuring efficient fluid transfer between the reservoir and radiator. Common issues that may necessitate replacement include wear, kinks, or leaks, which can lead to coolant loss and engine overheating. This part is compatible with the 2013-2018 Audi S6, RS7, and S7 models featuring the 4.0L V8 gas engine. Additional compatible part numbers include 4H0121445K and 4G0121448AH.

Specifications

Specifications for Coolant Reservoir Hose / Line 4G0122109F
Fits Vehicle ModelRS7, S6, S7
Fits Vehicle MakeAudi
OEM Part No4G0-122-109-F (4G0122109F)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 12 vehicle configurations across 1 make, 2013-2018.

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

  • RS7 2014-2018 · 5 variants
  • S6 2013-2016 · 4 variants 1 with note
  • S7 2013-2016 · 3 variants 1 with note
View all 12 vehicle configurations — 2 with fitment notes
Full vehicle fitment list for Coolant Reservoir Hose / Line 4G0122109F
Year Make Model Trim Engine Note
2013 Audi S6 Sedan 4.0L V8 Turbo
2013 Audi S7 Hatchback 4.0L V8 Turbo
2014 Audi RS7 Hatchback 4.0L V8 Turbo
2014 Audi S6 Sedan 4.0L V8 Turbo
2014 Audi S7 Hatchback 4.0L V8 Turbo
2015 Audi RS7 Hatchback 4.0L V8 Turbo
2015 Audi S6 Sedan 4.0L V8 Turbo
2016 Audi RS7 Hatchback 4.0L V8 Turbo
2016 Audi S6 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 01/19/15
2016 Audi S7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 01/19/15
2017 Audi RS7 Hatchback 4.0L V8 Turbo
2018 Audi RS7 Hatchback 4.0L V8 Turbo

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