Description

Audi A6 & Allroad C5 4B 3.0L V6 Power Steering Pump – 4B0145156R

Genuine Audi 3.0L V6 Power Steering Pump

For sale is an Audi hydraulic power steering pump, OEM part number 4B0145156R, designed for compatible Audi A6 C5 and Allroad C5 (4B) 3.0L V6 models from approximately 2002–2005.

This power steering pump is associated with the 3.0L V6 gasoline engine codes ASN and BBJ and is designed to provide hydraulic assistance to the vehicle’s steering system.

It is a suitable replacement for a compatible original pump that is worn, damaged, noisy, leaking, or no longer providing adequate steering assistance.

Product Details

• OEM Part Number: 4B0145156R
• Product: Hydraulic Power Steering Pump
• Vehicle: Audi A6 C5 / Allroad C5 (4B)
• Engine: 3.0L V6 gasoline
• Engine Codes: ASN / BBJ
• Model Years: Approximately 2002–2005
• Application: Hydraulic power steering system
• Part Type: Power steering pump
• Condition: Verify listing condition

Audi A6 C5 3.0 V6 Steering Pump

The hydraulic power steering pump generates pressure that assists the steering system when the steering wheel is turned. On compatible Audi A6 and Allroad models, proper hydraulic assistance helps provide smooth and controlled steering operation.

A failing power steering pump may produce symptoms such as:

• Whining or groaning noises
• Heavy steering
• Reduced power-steering assistance
• Hydraulic fluid leakage
• Inconsistent steering assistance
• Steering noise that changes with engine speed

Before replacing the pump, the complete hydraulic steering system should be inspected. Low fluid, air in the system, damaged hoses, restricted lines, or other steering components can cause similar symptoms.

Vehicle Fitment

Potential applications include compatible:

• Audi A6 C5 (4B)
• Audi A6 3.0L V6
• Audi Allroad C5 (4B)
• 3.0L V6 gasoline
• Engine codes ASN / BBJ
• Approximately 2002–2005

Important Fitment Information

Exact compatibility can depend on:

• Vehicle model and year
• Engine code
• Front-wheel drive or quattro drivetrain
• Steering system configuration
• Pump mounting arrangement
• Hydraulic hose and fitting connections
• Pulley configuration
• Production date
• Original OEM part number

Please compare OEM part number 4B0145156R with your existing power steering pump before ordering.

Vehicle model, engine, and year alone should not be used to confirm exact compatibility.

Condition

Please verify the listing condition.

If this is a pre-owned component, normal signs of previous use may be present, including minor cosmetic marks, surface wear, or evidence of previous installation. Please review the product photographs carefully for the actual condition and included components.

Before installation, inspect the pump for visible damage, hydraulic leakage, pulley condition, mounting points, and fitting condition.

Installation & Service

Professional installation is recommended for hydraulic steering components.

When replacing the power steering pump:

• Inspect all hydraulic hoses and fittings
• Check the power-steering reservoir
• Inspect the pump pulley and mounting points
• Use the correct steering-system fluid
• Bleed the hydraulic system according to the appropriate service procedure
• Check carefully for leaks after installation
• Confirm proper steering assistance
• Listen for abnormal pump noise

Do not operate the pump without the appropriate hydraulic fluid, as running a hydraulic pump dry can cause damage.

Worldwide Shipping

Audi Parts 05 offers worldwide shipping for Audi replacement parts, including power steering pumps, steering components, and other genuine OE/OEM parts.