Accueil » Premium Radiator Expansion Tank With Coolant Level Sensor Replacement for Audi A6 C6

Premium Radiator Expansion Tank With Coolant Level Sensor Replacement for Audi A6 C6

Unité de gestion de stock: 1005009570366042-Default Title
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€93,92
-33% €140,88 €93,92

Upgrade your Audi A6 C6 cooling system with our Radiator Expansion Tank featuring a built-in coolant level sensor. This 100% new tank replaces worn or cracked reservoirs, helping prevent coolant loss and overheating while simplifying monitoring through the sensor. Built to meet OEM standards, it uses a durable combination of plastic and rubber to withstand everyday driving and longer trips.

Note: This expansion tank ships without a cap but includes a coolant level sensor for real-time monitoring. It is a direct replacement for Audi C6 models including 2.0T, 2.4, and 4.2L engines in the A6 and A6L line.

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Benefits & Tips

  • Real-time coolant level monitoring helps prevent overheating by alerting you to coolant loss before it becomes a problem.
  • Direct replacement design ensures a straightforward installation that aligns with OEM mounting points and hoses, saving time and reducing fitment guesswork.
  • Tip: Since the tank ships without a cap, source the correct cap separately and after installation, refill coolant to the recommended level and bleed air according to your vehicle’s service procedure.

Product specifications

  • Brand: MAX NOLOGY
  • Item: Radiator expansion tank
  • Vehicle fitment: Audi C6 A6 and A6L with 2.0T, 2.4, and 4.2L engines (C6 platform)
  • OEM No.: 4F0121403B, 4F0121403F
  • Origin: Mainland China
  • Condition: 100% New
  • Material: Plastic and rubber
  • Warranty: 3 years or 50,000 kilometers (under normal use)
  • Remark: without cap, with coolant level sensor
  • Direct replacement: Yes

Package includes:

  • 1 piece Radiator Expansion Tank (without cap, with coolant level sensor)

Warnings / Reminders

If you are unsure about the correct part for your car, contact us. To ensure a fast and accurate response, please send the VIN of your vehicle for us to confirm parts fitment. The VIN can be found on the lower left or lower right corner of the windshield or on the vehicle registration certificate; it consists of 17 characters.