Description
Overview
The Audi (3.0) Engine Coolant Reservoir from AWE Tuning is part of the in-house engineered ColdFront™ product line, developed to deliver consistent, reliable performance for modified vehicles chasing maximum power and security. CNC machined from 6061 Billet Aluminum, this ColdFront™ coolant reservoir plumbs directly into the heat exchanger coolant system to increase supercharger coolant capacity — a purposeful upgrade over the factory setup that goes far beyond a simple coolant tank swap.
Adding coolant capacity to your 3.0 supercharged Audi has a real, measurable effect: more volume in the system helps lower coolant temperatures, which in turn supports lower air intake temperatures. Cooler air means the engine stays composed under sustained load, making this automotive coolant reservoir a smart choice for enthusiasts who push their coolant car hard on the street or at the track.
Key Benefits
Unlike a basic coolant overflow tank, the ColdFrontâ„¢ Reservoir incorporates a true flow-through design that actively reduces coolant temperature as it passes through the unit. It isn’t just extra storage — it works as a functional part of the cooling circuit, acting like an intelligent coolant expansion tank that helps stabilize temperatures throughout the system.
A tidy, functional touch sits right on top: the reservoir features an anodized aluminum cap laser etched with the AWE logo, so checking your coolant level is quick and effortless. The billet construction and precise CNC machining give this coolant reservoir tank a finished, OEM-plus presence in the engine bay while standing up to the demands of a modified vehicle.
- CNC machined from 6061 Billet Aluminum for strength and a premium finish
- Plumbs directly into the heat exchanger coolant system to increase supercharger coolant capacity
- True flow-through design reduces coolant temperature as fluid passes through
- Lower coolant temps support lower air intake temperatures for consistent performance
- Anodized aluminum cap laser etched with the AWE logo for easy level checks
- Hardware included, with an AWE Fit Guarantee and No CEL Guarantee — and no tune required
Flexible Integration
The ColdFrontâ„¢ Reservoir is built to work your way. Run it in combination with other members of the AWE ColdFrontâ„¢ product line for a complete cooling upgrade, or install it alongside your factory heat exchanger as a standalone improvement. Either path, it functions as a purpose-built antifreeze reservoir tank rather than a generic radiator coolant overflow tank.
Fitment & Installation
Engineered specifically for the Audi 3.0 supercharged platform, this coolant reservoir for car applications is backed by AWE’s Fit Guarantee and installs with no tune required. Hardware is included, and AWE’s No CEL Guarantee means confidence in a clean, factory-friendly install. Please note this ColdFrontâ„¢ product carries a voluntary CARB Restricted label. Whether you’re planning a coolant reservoir replacement or upgrading capacity for a build, this reservoir antifreeze solution is engineered to perform.









