why is my Volkswagen Golf MK7 (2015-2019) making a whining noise when turning

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

661 words

Problem Statement

Learn how to diagnose and fix whining noise when turning in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, 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 working on the vehicle.

Symptoms

•Whining noise when turning the steering wheel
•Noise increases with steering angle or speed
•Possible vibration in the steering wheel
•Fluid leaks under the vehicle (if related to power steering)
•Steering feels heavy or unresponsive

Diagnostic Steps

1
Inspect the power steering fluid level and condition using the dipstick or reservoir.
2
Check for leaks in the power steering system, including hoses and the rack and pinion.
3
Examine the condition of the serpentine belt for wear or damage.
4
Test the power steering pump operation by listening for unusual noises while the engine is running.
5
Inspect the wheel bearings by checking for play or roughness while spinning the wheel.
6
Check the CV joints for any signs of wear or torn boots.

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

•Jack and jack stands
•Socket set
•Fluid catch pan
•Flashlight
•Screwdriver

Parts Required

•Power steering fluid
•Serpentine belt (if needed)
•Power steering pump (if needed)
•Wheel bearings (if needed)

Related Faults

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Diagnostic Steps

1
Inspect the power steering fluid level and condition using the dipstick or reservoir.
2
Check for leaks in the power steering system, including hoses and the rack and pinion.
3
Examine the condition of the serpentine belt for wear or damage.
4
Test the power steering pump operation by listening for unusual noises while the engine is running.
5
Inspect the wheel bearings by checking for play or roughness while spinning the wheel.
6
Check the CV joints for any signs of wear or torn boots.

Solution

1. Preparation

Tools Required: Jack and jack stands, socket set, fluid catch pan, flashlight, screwdriver.
Ensure the vehicle is on a level surface and securely lifted with jack stands.
Wear safety goggles and gloves.

2. Inspect and Replace Power Steering Fluid

Sub-steps:
1. Locate the power steering fluid reservoir.
2. Remove the cap and check the fluid level; if low, add the appropriate type of power steering fluid (consult owner's manual for specifications).
3. If fluid is discolored or contaminated, drain the old fluid into a catch pan.
4. Refill the reservoir with new power steering fluid until it reaches the proper level.
5. Start the engine and turn the steering wheel from lock to lock to bleed air from the system.

3. Check and Replace Serpentine Belt (if necessary)

Sub-steps:
1. Locate the serpentine belt routing diagram on the engine bay for reference.
2. Use a socket to relieve tension on the tensioner pulley and remove the belt.
3. Inspect the belt for cracks, fraying, or glazing; replace if necessary.
4. Install the new belt following the routing diagram and ensure it is seated properly on all pulleys.

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

Sub-steps:
1. Remove any components obstructing access to the power steering pump (if applicable).
2. Disconnect power steering lines and electrical connectors from the pump.
3. Remove the mounting bolts securing the pump to the engine.
4. Install the new pump, tightening bolts to the manufacturer’s specifications (typically around 15-20 ft-lbs).
5. Reconnect the power steering lines and connectors.

5. Inspect and Replace Wheel Bearings (if necessary)

Sub-steps:
1. Remove the wheel and tire to access the hub assembly.
2. Inspect the wheel bearing for play by rocking the wheel; replace if any movement is detected.
3. Remove the hub assembly to access the bearing; use a press or appropriate tool to remove the old bearing.
4. Install the new bearing and reassemble the hub, ensuring proper torque specifications are followed (usually around 85-100 ft-lbs for hub bolts).