Dorman 603-980 Engine Coolant Reservoir - Front

Engine Coolant Reservoir for Audi Q7 and VW Touareg

This Dorman engine coolant reservoir is a direct replacement for select Audi Q7 and Volkswagen Touareg applications. Built from plastic with a black finish, it includes a cap and mounting brackets to match the original reservoir’s fit and function.

• Brand: Dorman
• Part Number: 603-980
• Engine coolant reservoir with 4 L capacity
• Plastic construction for underhood use
• Black color with irregular shape
• Pressurized design with included cap
• Cap maximum pressure rating: 22
• Mounting brackets included
• 2 mounting holes

OE-Style Replacement Design

Dorman 603-980 is engineered to match the original reservoir’s fit and function, making it a practical replacement for a cracked, leaking, or heat-damaged coolant tank. It is built to handle engine vibration and underhood temperatures while maintaining proper coolant storage and pressure control. This part cross-references Rein EPT0140 for the same application.

Compatible Vehicle Fitment

• Fits 2007-2015 Audi Q7, front
• Fits 2004-2010 Volkswagen Touareg, front

Common Problems This Part Can Address

• Coolant leaks from a cracked reservoir
• Low coolant level warnings caused by reservoir failure
• Visible plastic deterioration from heat cycling
• Pressure loss from a damaged cap or tank seal
• Reservoir mounting issues after the original tank breaks or warps

Installation Notes

Verify the reservoir shape, mounting points, and cap pressure rating before installation. This pressurized coolant reservoir includes the cap and is intended for front-position applications on select Audi Q7 and Volkswagen Touareg models. Transfer and inspect any connected hoses, sensors, and clamps during replacement.

Quality Assurance

Dorman manufactures this replacement coolant reservoir from quality materials to withstand heat and vibration in the engine bay. It is engineered to match the original part’s fit and function for the listed applications.