why does my Volkswagen Golf MK7.5 (2020-Present) make a grinding noise when turning?

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

576 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 grinding noise when turning in Volkswagen Golf MK7.5. 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

•Always disconnect the battery before working on electrical components.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Grinding noise when turning the steering wheel
•Increased resistance in the steering wheel during turns
•Vibration felt through the steering wheel
•Possible clunking or popping noises in conjunction with grinding
•Uneven tire wear on the front tires

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage or wear on the CV joints and boots.
3
Examine the wheel bearings for play or damage.
4
Inspect the suspension components, including struts and bushings.
5
Test drive the vehicle to replicate the noise while turning.
6
Scan for any error codes related to the steering system using an OBD-II scanner.

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
•Torque wrench
•OBD-II scanner
•Screwdrivers

Parts Required

•Power steering fluid
•CV joint or axle assembly (if damaged)
•Wheel bearings (if worn)
•Suspension bushings (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage or wear on the CV joints and boots.
3
Examine the wheel bearings for play or damage.
4
Inspect the suspension components, including struts and bushings.
5
Test drive the vehicle to replicate the noise while turning.
6
Scan for any error codes related to the steering system using an OBD-II scanner.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a level surface and set the parking brake.
Disconnect the negative battery terminal to prevent any electrical issues.

2. Inspect and Replace Power Steering Fluid

Sub-steps:
1. Locate the power steering reservoir.
2. Check the fluid level and condition; if dirty or low, replace it.
3. Use the appropriate power steering fluid as specified in the owner’s manual.
4. Reconnect the battery terminal after completing this step.

3. Inspect and Replace CV Joints

Sub-steps:
1. Raise the front of the vehicle using a jack and secure with jack stands.
2. Remove the front wheels to access the CV joints.
3. Inspect the CV boots for tears or leaks; replace if necessary.
4. If the CV joints are damaged, remove the axle nut, disconnect the joint from the transmission, and replace the CV axle.
5. Reassemble by reversing the disassembly steps and torque the axle nut to the manufacturer's specifications.

4. Check and Replace Wheel Bearings

Sub-steps:
1. With the front wheels removed, check for play in the wheel bearings by wiggling the hub.
2. If play is detected, remove the brake caliper and rotor.
3. Remove the hub assembly to access the bearings.
4. Replace the bearings if worn and pack new grease before reassembly.
5. Reinstall the hub assembly, rotors, and calipers, ensuring all components are torqued to specifications.

5. Inspect Suspension Components

Sub-steps:
1. Visually inspect struts and bushings for signs of wear or damage.
2. Replace any damaged suspension components using appropriate tools.
3. Reassemble and ensure all bolts are tightened to the manufacturer's specifications.