Cardone 3R-602 Power Steering Reservoir

Cardone Power Steering Reservoir 3R-602

Restore proper power steering fluid control with this Cardone Power Steering Reservoir, part number 3R-602. It is a remote-mounted replacement reservoir for select Audi and Volkswagen applications, including Audi A4, A6, S4, RS6, Allroad Quattro, and Volkswagen Passat models.

Cardone’s Power Steering Reservoir line focuses on OE-style replacement for remote reservoir systems, with the reservoir cap included and construction that follows the original design for fit and function.

Key Features

• Cap included
• Remote-mounted design
• Plastic construction in white
• OE-grade material for strength and durability
• 100% tested for leak-free performance
• Matches OE fit, function, and performance
• Resistant to cracking from engine compartment heat
• Integrated-filter versions maintain OE filtration efficiency

Product Details

The Cardone 3R-602 power steering reservoir is a new replacement component for systems where the reservoir is mounted away from the pump. It is built to the original equipment design and tested to help ensure proper fluid storage and delivery in the power steering circuit. This reservoir is a direct service part for vehicles such as the Audi A6 Quattro, Audi S6, and Volkswagen Passat, and it is also listed for Audi A4 and A4 Quattro applications.

This part cross-references Audi and Volkswagen OE number 8D0422371K for the same application.

Common Problems It Can Address

• Leaking reservoir body caused by heat and vibration
• Cracking around the main housing or hose tube connections
• Foaming fluid from air trapped in the power steering system
• Noise caused by restricted fluid flow through a clogged remote reservoir
• Loss of steering assist related to reservoir contamination or internal restriction

Installation Notes

Depending on the vehicle, the reservoir may be located on the firewall, on an inner fender near the pump, or mounted directly on the power steering pump bracket. Inspect the inlet and return hoses during replacement, and bleed air from the system after installation to reduce foaming and cavitation. If the fluid is dark, gray, or contaminated with debris, inspect the hoses and fluid condition before returning the vehicle to service.

Quality Assurance

Cardone states that this reservoir is 100% tested to help confirm proper fit and function. It is manufactured from OE-grade material and follows the original design for the listed Audi and Volkswagen applications. Compatible With 1996-2001 Audi A4, 1996-2001 Audi A4 Quattro, 1998-2004 Audi A6, 1998-2004 Audi A6 Quattro, 2000-2001 Audi S4, 2002-2003 Audi S6, 2003-2004 Audi RS6, 2001-2005 Audi Allroad Quattro, and 1998-2001 Volkswagen Passat.