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Search by registration number
VIN number / Chasis number
| Supplementary article/info 2 | without lid |
| Article number of recommended accessories | 100 238 0003 |
Maintain optimal engine temperature and pressure with a precision-engineered coolant reservoir. OE-fit quality, durable construction, and integrated sensor ports ensure reliable cooling system performance.
The expansion tank houses excess engine coolant as it heats and expands, maintaining system pressure and preventing overheating. A properly functioning tank and cap together ensure safe pressure relief and coolant return during shutdown.
Inspect expansion tank and cap every 24 months or 40,000 km. Replace at first signs of cracks, discoloration, or cap failure to maintain system integrity and avoid overheating.
| Manufacturer | Productnumber |
| audi | 8E0 121 403 , 8E0121403 |
| seat | 8E0 121 403 , 8E0121403 |
| vw | 8E0 121 403 , 8E0121403 |
| Usage numbers |
| MET0034 |
| 3621 |
| THERMOTEC DBW010TT |
| SWAG 30 94 4744 |
| STC T403729 |
| ORIGINAL IMPERIUM 44188/I |
| ORIGINAL IMPERIUM 44188 |
| METZGER 2140175 |
| Metalcaucho 03729 |
| MAHLE CRT 105 000S |
| JP GROUP 1114702000 |
| HELLA 8MA 376 754-174 |
| FEBI BILSTEIN 44744 |
| FARE SA 3621 |
| CAUTEX 461089 |
| CALORSTAT by Vernet ET0009C1 |
| BIRTH 8754 |
| BEHR HELLA SERVICE 8MA 376 754-174 |
| BBR Automotive 001-10-23439 |
| AUTOMEGA 160105910 |
| AKS DASIS 043015N |
| AIC 57317 |
| meylecoolantank |
| VEMA 163020 |
| VAICO V10-8282 |
| TRUCKTEC AUTOMOTIVE 07.19.175 |
| TOPRAN 109 343 |
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
 audi |
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 seat |
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 vw |
You can enter your Vehicle Registration Number on our homepage or manually select your vehicle details. We will then filter the parts that match your vehicle. Always double-check the Product Properties section to confirm correct fitment.
Yes! We’re constantly expanding our product range and catalog. If you can’t find the part you’re looking for, please contact us. We work with several manufacturers and may be able to source the part for you.
Many product pages include a Fitment Details tab with additional information. If you still have questions, feel free to use our message service — we’re happy to help.
Parts do not come with additional items like fitting kits or gaskets unless it is clearly specified in the Part Details section of the product page.
Brake Discs: Most standard brake discs are priced individually, but for safety reasons, they must be purchased in pairs. When required, we will automatically set the quantity to 2 in your basket.
Brake Pads: These are sold as a set (either front or rear), so one box is enough for two discs.
The Compatibility Table can be found on each product page, usually below the main product description. Look for a tab or heading labeled Compatibility.
Orders Above £25 free Delivery
Quality made brands
Great Deals on CarParts
Easy 30 Day Returns
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