my Volkswagen Golf MK7 (2015-2019) has a strange noise when turning what could it be?

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

565 words

Problem Statement

Learn how to diagnose and fix strange 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.
•Allow the engine to cool before starting any work.

Symptoms

•Strange grinding or popping noise during turns
•Increased steering effort or stiffness
•Clunking sound when going over bumps
•Vibration in the steering wheel while turning
•Uneven tire wear

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage or wear on the suspension components (e.g., control arms, bushings).
3
Test drive the vehicle to replicate the noise while turning.
4
Listen for the noise while stationary and turning the steering wheel to isolate the source.
5
Inspect the CV joints and boots for any signs of damage or grease leakage.
6
Examine the wheel bearings for play or roughness.

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
•Jack and jack stands
•Drain pan

Parts Required

•Power steering fluid
•Suspension components (control arms, bushings as needed)
•CV joint or axle assembly (if applicable)
•Wheel bearing (if applicable)

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 suspension components (e.g., control arms, bushings).
3
Test drive the vehicle to replicate the noise while turning.
4
Listen for the noise while stationary and turning the steering wheel to isolate the source.
5
Inspect the CV joints and boots for any signs of damage or grease leakage.
6
Examine the wheel bearings for play or roughness.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is on a flat surface and securely lifted using jack stands.
Disconnect the battery if working on electrical components.

2. Inspect and Replace Power Steering Fluid

Locate the power steering reservoir.
Remove the cap and check the fluid level; if low, top up with manufacturer's recommended fluid.
If the fluid is dark or contaminated, drain and replace it:
- Place a drain pan under the reservoir.
- Remove the return line and allow the old fluid to drain completely.
- Reconnect the return line and fill the reservoir with new fluid.

3. Check and Replace Suspension Components

Visually inspect all suspension parts, particularly control arms and bushings.
If any parts are damaged:
- Remove the wheel to access suspension components.
- Use a socket set to remove bolts securing the affected component.
- Replace with new parts, ensuring to torque bolts to manufacturer specifications.

4. Inspect and Replace CV Joints

Lift the vehicle and remove the wheel.
Examine the CV joint boots for tears or grease leakage.
If damaged:
- Remove the axle nut using a socket and breaker bar.
- Disconnect the lower control arm or knuckle to free the CV axle.
- Replace the CV joint or the complete axle assembly, following service manual specifications.

5. Check Wheel Bearings

Spin the wheel by hand to listen for noise.
If roughness or play is present:
- Remove the wheel and brake caliper.
- Use a socket set to remove the hub assembly.
- Replace the wheel bearing and reassemble, ensuring proper torque specifications.