Power Steering Centre Pressure Line. Porsche 996 Carrera 2 / Carrera 4 / Carrera 4S 1997-05  ›  99634744527

The Genuine Porsche Power Steering Centre Pressure Line is a replacement hydraulic pipe for the power-assisted steering system of selected Porsche 911 (996) models.

Fits:

• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005

Because this line operates under hydraulic pressure, it must remain securely sealed and free from corrosion, cracks, deformation or damaged connections. A leaking or restricted pressure line can reduce the effectiveness of the power steering system and may eventually lead to fluid loss, pump damage or reduced steering assistance.

What This Product Does:

• Carries pressurised hydraulic fluid through the power steering system.
• Forms the centre section of the power steering pressure circuit.
• Connects adjoining sections of the hydraulic pipework.
• Allows hydraulic pressure to reach the steering system correctly.
• Supports light and consistent steering assistance.
• Helps maintain correct power steering fluid circulation.
• Provides a sealed hydraulic connection under operating pressure.
• Replaces a leaking, corroded, damaged or restricted original pressure line.
• Helps protect the steering pump and rack by maintaining the correct fluid supply.
• Restores hydraulic-system integrity after age-related deterioration or damage.

The power steering system relies on a closed hydraulic circuit. Loss of fluid or pressure anywhere in that circuit can affect steering assistance and place additional stress on other components.

Symptoms Of Wear Or Failure:
Possible symptoms include:

• Power steering fluid leaking underneath the vehicle.
• Damp or oily residue along the hydraulic pipe.
• Fluid collecting around pipe unions or connections.
• Gradual reduction in the power steering fluid level.
• Steering becoming heavier than normal.
• Intermittent loss of steering assistance.
• Whining or groaning noises from the power steering pump.
• Increased pump noise when turning the steering wheel.
• Foaming or aeration of the power steering fluid.
• Steering assistance feeling inconsistent.
• Corrosion or rust on the metal pipe.
• Cracked or damaged hose sections or joints.
• Damaged, flattened or kinked sections of pipe.
• Fluid spraying or leaking under pressure in severe cases.
• Burning-fluid smell if leaked hydraulic fluid reaches hot components.

A low fluid level or noisy steering pump should be investigated promptly. Similar symptoms can also be caused by the pump, reservoir, steering rack, return lines or other hydraulic connections.

Why Replacement Matters:
The power steering pressure line operates under considerably higher pressure than the return side of the system.

If the line begins leaking, fluid loss can reduce the hydraulic pressure available to assist the steering. As the fluid level falls, the pump may begin drawing air into the system, which can result in noise, poor assistance and accelerated pump wear.

Replacing a damaged pressure line helps restore:

• A sealed hydraulic circuit.
• Correct power steering fluid pressure.
• Consistent steering assistance.
• Smooth steering operation.
• Correct fluid circulation.
• Reduced risk of power steering pump damage.
• Reliable long-term operation of the steering system.