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

540 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 to diagnose and fix grinding noise when turning in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostics, and repairs.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the vehicle to cool before working on any components.

Symptoms

•Grinding noise when turning the steering wheel
•Possible vibration felt through the steering wheel
•Difficulty in steering or a feeling of stiffness
•Uneven tire wear observed on front tires
•Clunking sound when going over bumps

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any leaks in the power steering system.
3
Examine the CV joints and boots for damage or wear.
4
Inspect the wheel bearings for excessive play or noise.
5
Check the suspension components, including struts and control arms, for damage.
6
Test drive the vehicle to replicate the noise and note conditions (e.g., speed, turning radius).

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
•Pry bar
•OBD-II scanner

Parts Required

•Power steering fluid
•CV joint or axle
•Wheel bearing
•Suspension components

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Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any leaks in the power steering system.
3
Examine the CV joints and boots for damage or wear.
4
Inspect the wheel bearings for excessive play or noise.
5
Check the suspension components, including struts and control arms, for damage.
6
Test drive the vehicle to replicate the noise and note conditions (e.g., speed, turning radius).

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
Disconnect the battery to prevent accidental electrical issues.

2. Inspect and Replace Power Steering Fluid

Check the power steering reservoir for fluid level.
- If low, top off with manufacturer-recommended fluid.
If fluid is dirty or contaminated, drain the system and refill with new fluid.
Bleed the power steering system by turning the steering wheel from lock to lock several times.

3. Inspect and Replace CV Joints

Tools Required: Jack and jack stands, socket set, torque wrench, pry bar.
Raise the front of the vehicle and remove the front wheels.
Inspect the CV joint boots for tears or leaks.
If damaged, remove the axle nut and detach the axle from the hub.
Replace the CV joint or axle as necessary.
Reassemble and torque the axle nut to manufacturer's specifications.

4. Inspect Wheel Bearings

With the wheel removed, grasp the wheel hub and check for excessive play.
If play is detected, remove the bearing assembly by unbolting the hub.
Replace the wheel bearing and reassemble, ensuring proper torque specifications are followed.

5. Inspect Suspension Components

Visually inspect struts and control arms for signs of wear or damage.
Replace any damaged components following the manufacturer’s torque specifications during reassembly.