Coolant expansion tank - 4M0121405L

Original coolant expansion tank designed for Audi vehicles. It is responsible for storing excess coolant and maintaining the correct pressure in the engine cooling system.

This is an OEM component, resistant to high temperatures and constant fluctuations in operating pressure.

Technical specifications

• Catalog number (OE): 4M0121405L (alternative notation: 4M0 121 405 L)
• Function: Storing and equalizing coolant pressure
• Condition: Original part, used - 100% functional, tested, without damage

Main application

• Audi: Q7 4M

Fitment guarantee

Every part undergoes quality and functionality checks before shipping.

Tip: Before purchasing, it is recommended to compare the part's OE number with the number currently installed in the vehicle or to verify it using the VIN.