why does my Volkswagen Golf MK6 (2009-2014) make a hissing sound when turning

Volkswagen Golf MK7 (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

487 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the hissing sound when turning in Volkswagen Golf MK6. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool before performing any repairs to avoid burns.

Symptoms

•Hissing sound when turning the steering wheel
•Increased resistance while turning
•Fluid leaks around the power steering pump or hoses
•Steering wheel vibrations or stiffness
•Possible warning light related to the steering system

Diagnostic Steps

1
Inspect power steering fluid level and condition.
2
Examine power steering pump for noise or signs of wear.
3
Check power steering hoses for cracks, leaks, or kinks.
4
Inspect the steering rack for any fluid leaks or damage.
5
Test for air in the power steering system by turning the steering wheel lock to lock.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Torque wrench
•Fluid catch pan

Parts Required

•Power steering fluid
•Power steering pump (if faulty)
•Power steering hoses (if damaged)

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Diagnostic Steps

1
Inspect power steering fluid level and condition.
2
Examine power steering pump for noise or signs of wear.
3
Check power steering hoses for cracks, leaks, or kinks.
4
Inspect the steering rack for any fluid leaks or damage.
5
Test for air in the power steering system by turning the steering wheel lock to lock.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal for safety.

2. Check and Refill Power Steering Fluid

Locate the power steering reservoir.
Remove the cap and check the fluid level.
If low, use the manufacturer-recommended power steering fluid to refill to the appropriate level.

3. Inspect and Replace Power Steering Pump (if necessary)

Tools Required: Socket set, torque wrench, fluid catch pan.
Disconnect the power steering hoses from the pump.
Remove the mounting bolts and take out the power steering pump.
Install the new pump by reversing the removal steps, ensuring proper torque on bolts (consult repair manual for specific torque values).
Reattach hoses and check for leaks.

4. Replace Damaged Hoses (if applicable)

Tools Required: Hose clamps, screwdriver, cutting tool.
Remove damaged hoses by loosening clamps and cutting if necessary.
Install new hoses and secure them with clamps.
Ensure all connections are tight to prevent leaks.

5. Bleed the Power Steering System

Reconnect the negative battery terminal.
Start the engine and turn the steering wheel from lock to lock several times to remove air from the system.
Check fluid level again and top off if needed.