Accueil » Expansion Tank for Audi A8 D3 A8L S8 Quattro 4.2L V8 Engine with Coolant Level Sensor

Expansion Tank for Audi A8 D3 A8L S8 Quattro 4.2L V8 Engine with Coolant Level Sensor

Unité de gestion de stock: 1005010217764213-Default Title
Default Title
€112,22
-33% €168,34 €112,22

Main description

Replace or upgrade your Audi A8 D3’s cooling system with this MAX NOLOGY expansion tank, a precise, direct-fit solution designed for models including A8, A8L and S8 quattro. This tank is 100% new and comes without a cap but includes a coolant level sensor, giving you real-time visibility into your engine’s coolant health. Built to OEM standards, it maintains the correct coolant volume during rapid acceleration, long drives, or hot summer days, helping prevent overheating and maintaining optimal engine performance.

Crafted from durable plastic and rubber, this expansion tank is engineered to withstand the vibrations, heat, and pressures of a modern cooling system. The integrated coolant level sensor provides a simple, proactive way to monitor coolant status, so you can address low levels before they trigger warnings or damage. With the OEM part numbers 4E0121403C and 4E0121403G, it’s a reliable, high-quality replacement that fits the Audi A8 D3 family and related variants precisely.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. In addition, this expansion tank carries a 3-year or 50,000-kilometer warranty under normal use, offering solid protection as you drive with confidence.

To ensure a fast, accurate fit, the part is designed as a direct replacement that matches the vehicle’s connections and layout. If you’re unsure about fitment for your exact trim, provide your VIN (17-character number) for confirmation—this helps us confirm compatibility quickly and precisely.

Benefits & Tips

  • Proactive coolant management: The built‑in level sensor helps you spot low coolant before overheating becomes a risk, saving time and potential engine damage.
  • Easy, reliable replacement: Direct-fit design means straightforward installation with minimal rework, restoring proper cooling system function quickly.
  • Broad compatibility for the A8 family: Specifically engineered for Audi A8 D3, A8L D3, and S8 quattro variants across multiple engine options and year ranges, ensuring you get a correct, long‑lasting fit.

Product specifications

  • Brand: MAX NOLOGY
  • Item: Expansion Tank, Radiator Coolant Expansion Tank
  • OEM No.: 4E0121403C, 4E0121403G
  • Condition: 100% New
  • Remark: without cap, with coolant level sensor
  • Origin: Mainland China
  • Material: Plastic and rubber
  • Warranty: 3 years or 50,000 kilometers under normal use
  • Vehicle Fitment (selected models):
    • A8L D3 (4E2, 4E8) 2.8 FSI — 08.2007-07.2010
    • A8L D3 (4E2, 4E8) 3.0 — 07.2003-05.2005
    • A8L D3 (4E2, 4E8) 3.0 — 07.2003-05.2006
    • A8L D3 (4E2, 4E8) 3.2 FSI — 06.2005-07.2010
    • A8L D3 (4E2, 4E8) 3.2 FSI quattro — 06.2005-07.2010
    • A8L D3 (4E2, 4E8) 3.7 quattro — 10.2002-05.2006
    • A8L D3 (4E2, 4E8) 4.2 FSI quattro — 06.2006-07.2010
    • A8L D3 (4E2, 4E8) 4.2 quattro — 10.2002-07.2010
    • A8L D3 (4E2, 4E8) 6.0 W12 quattro — 12.2003-07.2010
    • A8L D3 (4E2, 4E8) S8 quattro — 06.2006-07.2010

Package includes:

  • 1 x Tank

Warnings / Reminders

  • Cap is not included. You may reuse your existing cap or purchase a compatible cap separately.
  • To confirm fitment, please provide your Vehicle Identification Number (VIN) when requesting assistance with compatibility.

Language support: Not specified for this product.

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

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