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Coolant Expansion Tank

Coolant level sensor enclosed in tank
Mfg Part #
4G0121403AC
ECS Part #
ES#4039536
Brand
Behr
35.60
Direct Ship
Qty
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Product Details

The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break.

You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

When replacing, be sure to have some extra coolant. Check ECS Tuning's website for a wide variety of coolants specifically designed for your car. Most German vehicles require specialized coolant. Be sure to pick up the proper coolant when refilling to avoid damage or premature corrosion.

This Part Fits the Following Vehicles

Make Model Submodel Engine
Audi C7 A6 FWD 2.0T
Audi C7 A6 FWD V6 3.0T
Audi C7 A6 Quattro 2.0T
Audi C7 A6 Quattro 3.0 TDI
Audi C7 A6 Quattro V6 3.0T
Audi C7 S6 Quattro 4.0T
Audi RS7 GTI 4.0T
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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