Premium Direct Replacement Radiator Expansion Tank With Level Sensor for Audi A4 B6/B7

Upgrade your Audi A4 B6/B7 cooling system with MAX NOLOGY Radiator Expansion Tank with Level Sensor. This 100% new expansion tank is a direct replacement designed for the A4 B6 1.8/2.0 and A4 B7 2.0 TFSI variants. It features a built-in coolant level sensor and comes without a cap, ensuring you can pair it with your existing cap or a new one of your choice. Precision-molded from durable plastic and rubber to tolerate engine bay heat and pressure fluctuations.

OEM reference 8E0121403 ensures a perfect fit and seamless integration with your vehicle’s cooling system. The tank is a direct replacement that matches the factory specifications for reliable operation and long life under normal driving conditions.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

• Prevent coolant overflow and maintain optimal engine cooling with an integrated level sensor that alerts you when coolant is running low.
• Easy to install as a direct replacement that matches OEM dimensions and fittings, reducing downtime and guesswork.
• Use the sensor-equipped tank to monitor coolant health and catch leaks early, protecting your engine from overheating.

Product specifications

• Brand: MAX NOLOGY
• Item: Radiator Expansion Tank
• OEM No.: 8E0121403
• Vehicle Fitment: AUDI A4 B6 1.8/2.0; A4 B7 2.0 TFSI; includes quattro and various body styles as listed
• Material: Plastic and rubber
• Condition: 100% New
• Cap: Without cap
• Sensor: With coolant level sensor
• Origin: Mainland China
• Warranty: 3 years or 50,000 kilometers
• Note: Direct replacement

Package includes:

• 1 piece Tank (Radiator Expansion Tank)

Warnings / Reminders

• Cap not included — ensure you use your existing cap or purchase a compatible cap separately.
• To ensure correct fitment, providing your vehicle VIN will help us confirm compatibility.
• Warranty terms: 3 years or 50,000 km, whichever comes first, per our policy.

Warranty policy details: 1- Full 3 year warranty from date of parcel delivery, or warranty 50,000 kilometers driving; take the first arrived data as the standard. For orders within the warranty period, we will send a new product or refund. 2- Quality issues, please provide fault codes, photos or videos. After installing our accessories, please send the photo of mileage currently displayed on the vehicle odometer for future warranty purposes. 3- If item damaged on arrival, please notify us to exchange or refund. Please take photos of the damaged items and send photos to us (the photos must include the waybill number and information). 4- In order to avoid wasting time and money, please confirm that this is the product you need before buying. If you have any questions about the product, please communicate with us first.

At intercyprus.com since 2002 — trusted for quality and reliability.