why does my Volkswagen Golf MK7 (2015-2019) 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

580 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 (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 battery before working on electrical systems.
•Always use jack stands when lifting the vehicle to prevent accidents.

Symptoms

•Grinding noise when turning the steering wheel
•Difficulty steering or increased resistance in steering
•Vibration in the steering wheel during turns
•Uneven tire wear
•Possible fluid leaks around the power steering system

Diagnostic Steps

1
Inspect the power steering fluid level and check for leaks in hoses or connections.
2
Listen for the grinding noise while turning the steering wheel to determine its source (e.g., front, rear, left, or right).
3
Check the condition of the CV joints and boots for any signs of wear or damage.
4
Inspect the wheel bearings by lifting the vehicle and checking for play in the wheels.
5
Examine the suspension components, such as struts and control arms, for any signs of wear or damage.

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

•Socket set
•Torque wrench
•Bearing puller
•CV joint puller
•Clean rags

Parts Required

•Power steering fluid
•CV joint (if damaged)
•Wheel bearings (if worn)
•Suspension components (if damaged)

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Diagnostic Steps

1
Inspect the power steering fluid level and check for leaks in hoses or connections.
2
Listen for the grinding noise while turning the steering wheel to determine its source (e.g., front, rear, left, or right).
3
Check the condition of the CV joints and boots for any signs of wear or damage.
4
Inspect the wheel bearings by lifting the vehicle and checking for play in the wheels.
5
Examine the suspension components, such as struts and control arms, for any signs of wear or damage.

Solution

1. Preparation

Gather necessary tools and parts for the repair.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Power Steering Fluid

Tools Required: Socket set, funnel, clean rags.
Remove the power steering reservoir cap and check the fluid condition.
If the fluid is dirty or low, drain the system using a suction tool.
Refill with manufacturer-recommended power steering fluid.

3. Replace Worn CV Joints

Tools Required: Socket set, pry bar, CV joint puller.
Lift the vehicle and remove the wheel on the affected side.
Remove the axle nut and disconnect the lower control arm from the hub.
Use a CV joint puller to remove the CV joint from the axle.
Install a new CV joint by reversing the removal steps, ensuring proper torque on the axle nut (typically around 200 Nm).

4. Replace Wheel Bearings

Tools Required: Bearing puller, socket set, torque wrench.
Raise the vehicle and remove the wheel.
Remove the brake caliper and rotor to access the hub assembly.
Use a bearing puller to remove the old bearing from the hub.
Install the new wheel bearing, ensuring it is properly seated.
Reassemble the components, ensuring torque specifications are followed for the caliper and rotor.

5. Inspect and Repair Suspension Components

Tools Required: Socket set, torque wrench, pry bar.
Check for any damage or wear on the control arms, struts, and bushings.
Replace any damaged components as necessary, ensuring proper torque settings during reassembly.