Febi 103522 Coolant Expansion Tank Cap – Fits Volkswagen, Skoda, Audi & More
This coolant expansion tank cap fits a wide range of electric cars from the Volkswagen group and Ford. It is a black plastic cap with a 1.6 bar opening pressure.
The cap seals the expansion tank and holds the cooling system at the right pressure. On an electric car the coolant keeps the battery, motor and electronics at a safe temperature, so a worn seal or weak valve can lead to coolant loss and a warning light.
This is Febi part number 103522, made by the bilstein group.
Febi is a brand of the bilstein group, a German parts maker that supplies replacement parts for cars and vans across the world. Each part is made to match the original in fit and function, so it fits without modification.
The bilstein group parts finder lists this cap for electric versions of the Volkswagen e-up!, e-load up!, e-Golf, ID.3, ID.4, ID.5, ID.7 and ID. Buzz, Skoda Citigo-e iV, Enyaq iV, Enyaq Coupé iV and Elroq, SEAT Mii Electric, CUPRA Born, Audi Q4 e-tron and Q4 Sportback e-tron, and Ford Capri and Explorer. The table shows every electric version listed. Compare the part number on your existing part with the numbers on this page before ordering.
Key Benefits
- 1.6 bar opening pressure
- Black plastic cap
- Fits many Volkswagen group electric cars
Specifications
- Type: Cap for coolant expansion tank
- Opening Pressure: 1.6 bar
- Material: Plastic
- Colour: Black
- Part Number: Febi 103522
Replaces Audi, CUPRA, Ford, SEAT, Skoda and Volkswagen part numbers 2Q0 121 321 A, 5Q0 121 321, 2Q0 121 321, 3C0 121 321, 2 701 088 and VWR2KA-8101-AA.
Installation
Easy to fit. Only open the system when cold. Unscrew the old cap, check the tank neck is clean, screw the new cap on firmly by hand and check the coolant level.
Explore More Parts
- All Volkswagen e-up! Parts
- All Volkswagen ID.3 Parts
- All Volkswagen ID.4 Parts
- All Skoda Enyaq iV Parts
- All CUPRA Born Parts
- All Audi Q4 e-tron Parts
- All Cooling System Parts
| Attribute | Value |
|---|---|
| Type | Cap for coolant expansion tank |
| Opening Pressure | 1.6 bar |
| Material | Plastic |
| Colour | Black |
| Part Number | Febi 103522 |
Fits The Following Models
| Make | Model | Submodel |
|---|---|---|
| Audi | Q4 e-tron (F4) 2021 – | (E) – 150 kW / 204 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 195 kW / 265 hp |
| Audi | Q4 e-tron (F4) quattro 2021 – | (E) – 220 kW / 299 hp |
| Audi | Q4 e-tron (F4) Sportback 2021 – | (E) – 150 kW / 204 hp |
| Audi | Q4 e-tron (F4) Sportback 2021 – | (E) – 125 kW / 170 hp |
| Audi | Q4 e-tron (F4) Sportback quattro 2021 – | (E) – 220 kW / 299 hp |
| CUPRA | Born (K1) 2021 – | (E) – 110 kW / 150 hp |
| CUPRA | Born (K1) 2021 – | (E) – 150 kW / 204 hp |
| Ford | Capri IV (24) 2024 – | (E) – 125 kW / 170 hp |
| Ford | Capri IV (24) 2024 – | (E) – 210 kW / 286 hp |
| Ford | Capri IV (24) AWD 2024 – | (E) – 250 kW / 340 hp |
| Ford | Explorer EV (24) 2023 – | (E) – 125 kW / 170 hp |
| Ford | Explorer EV (24) 2023 – | (E) – 210 kW / 286 hp |
| Ford | Explorer EV (24) AWD 2023 – | (E) – 250 kW / 340 hp |
| SEAT | Mii (KE) 2020 – | (E) E 61 kW / 83 hp |
| Skoda | E-Citigo 2019 – 2021 | (E) – 61 kW / 83 hp |
| Skoda | Elroq 4×4 2025 – | (E) – 250 kW / 340 hp |
| Skoda | Elroq 50 2024 – | (E) – 125 kW / 170 hp |
| Skoda | Elroq 60 2024 – | (E) – 150 kW / 204 hp |
| Skoda | Elroq 85 2024 – | (E) – 210 kW / 286 hp |
| Skoda | Enyaq iV 4×4 2021 – | (E) – 195 kW / 265 hp |
| Skoda | Enyaq iV 2020 – | (E) – 109 kW / 148 hp |
| Skoda | Enyaq iV 2020 – | (E) – 132 kW / 179 hp |
| Skoda | Enyaq iV 2020 – | (E) – 150 kW / 204 hp |
| Skoda | Enyaq iV Coupe 4×4 2021 – | (E) – 220 kW / 299 hp |
| Volkswagen | e-Golf (BE) 2014 – 2021 | (E) – 100 kW / 136 hp |
| Volkswagen | e-Golf (BE) 2014 – 2021 | (E) – 85 kW / 116 hp |
| Volkswagen | e-load up! (BL1) 2014 – 2016 | (E) – 60 kW / 82 hp |
| Volkswagen | e-load up! (BL2) 2016 – 2019 | (E) – 60 kW / 82 hp |
| Volkswagen | e-up! (BL1) 2013 – 2016 | (E) – 60 kW / 82 hp |
| Volkswagen | e-up! (BL2) 2016 – | (E) – 61 kW / 83 hp |
| Volkswagen | e-up! (BL2) 2016 – | (E) – 60 kW / 82 hp |
| Volkswagen | ID. Buzz (EB) 2022 – | (E) – 150 kW / 204 hp |
| Volkswagen | ID.3 (E1) 2019 – | (E) – 93 kW / 126 hp |
| Volkswagen | ID.3 (E1) 2019 – | (E) – 107 kW / 145 hp |
| Volkswagen | ID.3 (E1) 2019 – | (E) – 110 kW / 150 hp |
| Volkswagen | ID.3 (E1) 2019 – | (E) – 150 kW / 204 hp |
| Volkswagen | ID.4 (E2) 2020 – | (E) – 125 kW / 170 hp |
| Volkswagen | ID.4 (E2) 2020 – | (E) – 109 kW / 148 hp |
| Volkswagen | ID.4 (E2) 2020 – | (E) – 150 kW / 204 hp |
| Volkswagen | ID.4 4motion (E2) 2021 – | (E) – 220 kW / 299 hp |
| Volkswagen | ID.5 (E3) 2021 – | (E) – 128 kW / 174 hp |
| Volkswagen | ID.5 (E3) 2021 – | (E) – 150 kW / 204 hp |
| Volkswagen | ID.5 4motion (E3) 2021 – | (E) – 220 kW / 299 hp |
| Volkswagen | ID.7 (ED) 2023 – | (E) – 210 kW / 286 hp |
| Volkswagen | ID.7 Tourer (ED) 2024 – | (E) – 210 kW / 286 hp |
Febi 103522 Coolant Expansion Tank Cap – Fits Volkswagen, Skoda, Audi & More FAQs
Which part numbers does it replace?
It replaces Audi, CUPRA, Ford, SEAT, Skoda and Volkswagen part numbers 2Q0 121 321 A, 5Q0 121 321, 2Q0 121 321, 3C0 121 321, 2 701 088 and VWR2KA-8101-AA.
What opening pressure is it?
The cap opens at 1.6 bar.
Can I remove the cap when the car has been driven?
Wait until the system is cold. The coolant is under pressure when warm.
Why replace the cap?
A worn seal or weak valve lets pressure escape, which can cause coolant loss and a low coolant warning.
Will it fit my electric Volkswagen, Skoda, SEAT, CUPRA, Audi or Ford?
The parts finder lists it for many electric Volkswagen, Skoda, SEAT, CUPRA, Audi and Ford models. The table shows every version. Compare the part number on your existing part, or send us your registration and we will confirm.
Is this a genuine Audi, CUPRA, Ford, SEAT, Skoda or Volkswagen part?
No. It is a quality replacement part made by the bilstein group to match the original in fit and function.
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