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Number 25 marks the part’s position in the exploded view.
Product overview
Genuine OEM Audi Coolant Reservoir, part number 5Q0121407P. This component holds excess coolant for the engine cooling system, ensuring proper fluid levels and temperature regulation. It is typically located in the engine bay, connected to the radiator and engine. Weighing 0.425 kg, this reservoir is designed for durability. Choosing a genuine OEM coolant reservoir ensures exact fitment, proper fluid sealing, and resistance to thermal cycling for long-term cooling system integrity.
Technical details
- Category
- Engine Cooling
- Country of origin
- Germany
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 19 × 19 × 14.5 cm
- Shipping weight
- 0.43 kg
Parts diagram & fitment
10 vehiclesReservoir — locate 5Q0121407P Audi Coolant Reservoir | Engine Cooling in the official exploded view and explore the surrounding assembly.
Parts in this assembly(35)
- 1Radiator 8W0121251AB
- 2Part 4M0121095
- 3Sleeve 7P0121365
- 4Grommet 7P0121276
- 5Rubber Bush 4M0121275A
- 6Rubber Bush 4M0121268A
- 7Bolt 8K0805399B
- 8Part 4D0133335
- 9Air Guide 760121330J
- 9Air Guide 760121330AA
- 10Air Guide 760121284AQ
- 11Air Guide 760121283AQ
- 12Air Guide 760121763AB
- 13Container 4M0121403H
- 14Part 4M0121321Q
- 15Bracket 4M0121239H
- 16Retainer 4M0121214C
- 17Collar Nut N01508210
- 18Rubber Bush 4G0121585A
- 19Bolt N90974701
- 20Part 811807577C
- 21Screw N10714802
- 22Air Guide 760121330AS
- 22Air Guide 760121330AJ
- 23Air Guide 760121287
- 24Radiator 4M0145804T
- 26Cover 2Q0121321A
- 27Seal Ring 1H0121687A
- 28Retainer 4M0121412
- 30Bolt N10737101
- 40CoolantRightG12E050A2
- 40CoolantRightG12E050A8
- 40CoolantRightG12E050A9
- 40CoolantRightG12E100A8
- 40CoolantRightG12E100A9
Compatible / alternative parts(5)
Diagrams & fitment data powered by oemdiagrams.com
5Q0121407P Audi Coolant Reservoir | Engine Cooling is fitted on: touareg 2017-2023; Passat saloon 2014-2024; Arteon 2017-2023; Tiguan 2.0 4Motion 2016-2024; Audi Q8 Quattro 3,0 2018-; Audi Q3 quattro 2018-2019; Audi Q7 qu. 3.0 TDI 2015-2019; Audi A3 Sportback 2016-2020; Tarraco FR 2018-2024; Superb Combi 2015-2024.
