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Genuine Audi A5 Coolant Reservoir

Coolant Tank Reservoir
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1 Coolant Reservoir found

  • Audi A5 Coolant Reservoir - 8K0-121-403-AC
    Diagram for Audi A5 Coolant Reservoir - 8K0-121-403-AC
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    Audi A5 Expansion Tank Part Number: 8K0-121-403-AC

    $73.78 MSRP: $103.34
    You Save: $29.56 (29%)
    Ships in 1-2 Business Days
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    Product Specifications
    • Other Name: Tank; Expansion Tank, Reservoir
    • Replaces: 8K0-121-403-T, 8K0-121-403-G, 8K0-121-403-H, 8K0-121-403-D, 8K0-121-403-Q
    • Warranty: This genuine part is guaranteed by Audi's factory warranty.
    Fits the following Vehicles:
    • 2010-2014 Audi A5 | Cabriolet | 4 Cyl 2.0 L GAS

Audi A5 Coolant Reservoir

The Audi A5 Coolant Reservoir keeps engine temperatures constant by providing the expanding antifreeze with a safe storage area prior to its being pumped back into the radiator, ensuring power and long life. This Coolant Reservoir is made of hard molded plastic and is placed in the upper part of the cooling system, where it vents trapped air and the fluid remains in the reservoir, a design that minimizes foaming and prevents corrosion. Older non-pressurized forms of overflow on first-generation A5 models are based on a radiator cap, but later pressurized tanks put the cap on the vessel itself and employ heavier reinforced walls as an additional safety measure. Obvious level indicators allow drivers to check the fluid quantity when the engine is cold, so regular checks are fast and neat. The compatibility includes all Audi coupes, Cabriolets and Sportback models across years, meaning that the same reservoir can be applied to cars with the original 3.2-liter V6 or new turbo fours without any modification. The reason why Audi cooling circuits leave a vacuum when cooling is the Coolant Reservoir, which then feeds the liquid back, preventing the creation of air bubbles that might spark hot spots or metal fatigue. The outcome is steady reliability when accelerating hard, idling in traffic or starting the car in winter. Lightweight construction sheds pounds off the front end, which provides a slight increase in steering accuracy and improved fuel consumption. The polymer shell can resist thousands of heat cycles unlike metal containers, which can pit or rust, as a demonstration of Audi's commitment to performance and sustainability. Collectively, the Coolant Reservoir is a silent though essential service in all modern A5 models, which adds efficiency, prolongs component life and ensures the level of security for which Audi cars have been recognized.

Choose original equipment manufacturer Coolant Reservoir for great performance and strong durability. They use Audi's official craftsmanship and high-grade materials, and meet strict quality standards. Are you looking for quality Coolant Reservoir at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi A5 and the prices are competitive. Each part comes with the manufacturer's warranty. You can install with confidence and get steady results. Over time, you'll save money and avoid hassle. Keep your maintenance simple and protect your vehicle with OEM parts. Get the quality your A5 needs now.

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