United States
Target · Diagram
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Number 23 marks the part’s position in the exploded view.
Product overview
Genuine OEM Audi Coolant Expansion Tank, part number 5Q0121407Q. This vital component of the engine cooling system is designed to hold excess coolant, allowing for thermal expansion and contraction as engine temperatures fluctuate. It helps maintain proper coolant levels and system pressure, preventing air pockets and ensuring efficient cooling. This plastic tank weighs approximately 0.178 kg and measures 0.16m x 0.145m x 0.15m. Opting for a genuine OEM expansion tank guarantees the correct material durability, pressure resistance, and precise connection points, crucial for preventing leaks and maintaining cooling system integrity.
Catalogue entry: TANK.
Fitted with: 5Q0121184 COVER, 1H0121687A SEAL. RING, N01508210 COLLAR NUT.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 87089997
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 16 × 14.5 × 15 cm
- Shipping weight
- 0.18 kg
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
10 vehiclesCoolant Expansion Tank — locate 5Q0121407Q Audi Coolant Expansion Tank | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly26
- 1Fan Ring 5WA121205
- 2Blind 5Q0121223F
- 4Radiator 5Q0121251GR
- 5Radiator 5WA121251J
- 6Bolt N90817003
- 7Air Guide 5H0121283D
- 8Air Guide 5H0121284D
- 10Radiator 5WA121251M
- 12Seal 5WA121331
- 12Seal 5WA121331D
- 13Seal 5WA121332
- 13Seal 5WA121332D
- 15Rubber Bush 5Q0121367G
- 16Bush 1K0121367F
- 17Bolt N90972201
- 18Sealing 5Q0121809A
- 19Cover 2Q0121321A
- 20Container 5WA121407E
- 22Seal Ring 1H0121687A
- 24Retainer 5Q0121093DH
- 25Collar Nut N01508210
- 26CoolantRightG12E050A2
- 26CoolantRightG12E050A8
- 26CoolantRightG12E050A9
- 26CoolantRightG12E100A8
- 26CoolantRightG12E100A9
Vehicle fitment table10
Europe (10)
| Vehicle | Years | Pos. | Qty |
|---|---|---|---|
| Formentor TSI CUPRA | 2020- | 23 | 1 |
| Leon style | 2019- | 23 | 1 |
| Golf 2.0 BlueMotion | 2019-2024 | 23 | 1 |
| Octavia | 2019-2024 | 23 | 1 |
| Audi A3 Sportback | 2019-2021 | 40 | 1 |
| Tarraco FR | 2018-2024 | 23 | 1 |
| Audi Q3 quattro | 2018-2019 | 40 | 1 |
| Arteon | 2017-2023 | 23 | 1 |
| Audi A3 Sportback | 2016-2020 | 30 | |
| Passat saloon | 2014-2024 | 23 | 1 |
Diagrams & fitment data powered by oemdiagrams.com
5Q0121407Q Audi Coolant Expansion Tank | Genuine OEM is fitted on: Formentor TSI CUPRA 2020-; Leon style 2019-; Golf 2.0 BlueMotion 2019-2024; Octavia 2019-2024; Audi A3 Sportback 2019-2021; Tarraco FR 2018-2024; Audi Q3 quattro 2018-2019; Arteon 2017-2023; Audi A3 Sportback 2016-2020; Passat saloon 2014-2024.
