United States
Product overview
Genuine OEM Audi Engine Coolant Overflow Hose, part number 5Q0121058AC. This hose is responsible for routing excess coolant from the engine cooling system to the overflow reservoir, helping to maintain optimal system pressure and prevent overheating. It is typically located in the front engine bay. Weighing approximately 0.1 kg, this hose is made from durable, heat-resistant rubber. Choosing genuine OEM ensures the correct routing geometry, material composition, and resistance to engine fluids for reliable, leak-free operation.
Catalogue entry: HOSE.
Fitted with: N90686902 CLAMP, N90687001 CLAMP.
Technical details
- Category
- Engine Cooling
- Customs (HS) code
- 40093100
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 18.5 × 17 × 4.8 cm
- Shipping weight
- 0.1 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
30 vehiclesCoolant Hose — locate 5Q0121058AC Audi Engine Coolant Overflow Hose | OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly44
- 1Hose 5WA122051M
- 1Hose 5WA122101AN
- 2Water Pipe 06K121034
- 2Hose 5WA122109A
- 2Hose 5WA122109B
- 3Hose 5WA121109D
- 3Bolt N10654902
- 4Hose 5WA121447
- 4Bolt N10451405
- 5Adapter 06K121143
- 6Seal Ring WHT005440
- 7Bolt N10196103
- 7Bolt N91096801
- 8Hose 5WA122157AB
- 8Hose 5WA122157AC
- 9Screw N10721401
- 10Water Pipe 06Q121085B
- 11Pump 5Q0121599AA
- 12Water Pipe 06Q121492
- 12Screw N91136101
- 13Hose 5Q0122157EP
- 13Hose 5WA122157AG
- 13Screw N10619201
- 14Water Pipe 06Q121497F
- 14Hose 5Q0121058AD
- 15Water Pipe 5Q0121070BT
- 16Hose 5WA122073H
- 16Bolt N10653102
- 16Bolt N10737101
- 17Water Pipe 06Q121065C
- 17Collar Nut N10609201
- 18Seal Ring WHT005558
- 19Valve 5Q0906457K
- 19Bolt N10335206
- 20Bracket 3Q0121093AJ
- 21Screw N10717701
- 22Collar Nut N01508210
- 40Clamp N90686701
- 41Clamp N90770201
- 42Clamp N90686902
- 42Clamp N90926401
- 43Clamp N90687001
- 44Clamp N90687101
- 45Clamp N90986501
Vehicle fitment table30
Europe (26)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Multivan | 2021- | 18 | 1 | T3J | |
| Formentor TSI CUPRA | 2020- | 21, 18 | 1 | ||
| Leon style | 2019- | 21, 18 | 1 | ||
| Golf 2.0 BlueMotion | 2019-2024 | 21, 18 | 1 | ||
| Octavia | 2019-2024 | 21 | 1 | ||
| Audi A3 Sportback | 2019-2021 | 21 | 1 | ||
| Audi A1 sportback 1.0 | 2018- | 18 | 1 | ||
| Tarraco FR | 2018-2024 | 21, 18 | 1 | ||
| Audi Q3 quattro | 2018-2019 | 18 | 1 | ||
| T-Roc BlueMotion | 2017-2024 | 21 | 1 | ||
| Tiguan 2.0 4Motion | 2017-2024 | 21, 18 | 1 | ||
| Polo 1.0 BlueMotion | 2017-2024 | 24 | 1 | ||
| Arteon | 2017-2023 | 21 | 1 | ||
| Karoq | 2017-2022 | 21 | 1 | ||
| Octavia | 2017-2020 | 21 | 1 | ||
| Ateca Style | 2016- | 21 | 1 | ||
| Tiguan 2.0 4Motion | 2016-2024 | 21, 18 | 1 | ||
| Kodiaq | 2016-2024 | 18 | 1 | ||
| golf 2.0 | 2016-2020 | 21 | 1 | ||
| Audi A3 Sportback | 2016-2020 | 21 | 1 | ||
| Audi A3 Cabrio | 2016-2020 | 21 | 1 | ||
| Leon ST Stylance | 2016-2020 | 21 | 1 | ||
| Audi Q2 2.0 TDI | 2016-2018 | 21 | 1 | ||
| Superb Combi | 2015-2024 | 21 | 1 | ||
| Passat saloon | 2014-2024 | 21, 18 | 1 | ||
| Audi TTS Coupe 2.0 | 2014-2023 | 21, 18 | 1 |
Other markets (3)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Jetta 1.4 | 2017-2024 | 21 | 1 | PR: TX8 | G1C |
| Kodiaq | 2017-2022 | 21 | 1 | ||
| POLO HATCH "ZA"06> | 2005- | 21 | 1 |
Platform / generic diagrams (1)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| 578 platform | 18 | 1 | 5QD |
Diagrams & fitment data powered by oemdiagrams.com
5Q0121058AC Audi Engine Coolant Overflow Hose | OEM is fitted on: Multivan 2021-; Formentor TSI CUPRA 2020-; Leon style 2019-; Golf 2.0 BlueMotion 2019-2024; Octavia 2019-2024; Audi A3 Sportback 2019-2021; Audi A1 sportback 1.0 2018-; Tarraco FR 2018-2024; Audi Q3 quattro 2018-2019; T-Roc BlueMotion 2017-2024; Tiguan 2.0 4Motion 2017-2024; Polo 1.0 BlueMotion 2017-2024; Arteon 2017-2023; Karoq 2017-2022; Octavia 2017-2020; Ateca Style 2016-; Tiguan 2.0 4Motion 2016-2024; Kodiaq 2016-2024; golf 2.0 2016-2020; Audi A3 Sportback 2016-2020; Audi A3 Cabrio 2016-2020; Leon ST Stylance 2016-2020; Audi Q2 2.0 TDI 2016-2018; Superb Combi 2015-2024; Passat saloon 2014-2024; Audi TTS Coupe 2.0 2014-2023; Jetta 1.4 2017-2024; Kodiaq 2017-2022; POLO HATCH "ZA"06> 2005-; 578 platform.
