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

Volkswagen Golf MK8.5 (2024-Present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

4 min read

611 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

Diagnose and fix loud 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

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Use proper lifting equipment and safety gear when working under the vehicle.

Symptoms

•Loud grinding or popping noise when turning the steering wheel
•Increased steering effort or resistance
•Vibration in the steering wheel during turns
•Uneven tire wear
•Fluid leaks under the vehicle

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage to the CV joints and boots.
3
Examine the steering rack and linkage for any signs of wear or damage.
4
Inspect the strut assemblies and control arms for any looseness or abnormal wear.
5
Test drive the vehicle to replicate the noise and observe conditions when it occurs.

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

•Fluid pump
•Funnel
•Power steering fluid
•Socket set
•Pry bar
•Torque wrench
•Spring compressor
•Alignment tools

Parts Required

•Power steering fluid
•CV joint (if damaged)
•Steering rack (if damaged)
•Strut assembly (if damaged)

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Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage to the CV joints and boots.
3
Examine the steering rack and linkage for any signs of wear or damage.
4
Inspect the strut assemblies and control arms for any looseness or abnormal wear.
5
Test drive the vehicle to replicate the noise and observe conditions when it occurs.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a flat surface and secure it with wheel chocks.
Disconnect the negative battery terminal to prevent any electrical issues.

2. Inspect and Replace Power Steering Fluid

Tools Required: Fluid pump, funnel, power steering fluid (as specified in owner’s manual).
Remove the power steering reservoir cap.
Use the fluid pump to extract old fluid from the reservoir.
Refill the reservoir with new power steering fluid to the recommended level and replace the cap.

3. Examine and Replace CV Joints (if needed)

Tools Required: Socket set, pry bar, torque wrench.
Lift the front of the vehicle using a jack and secure with jack stands.
Remove the wheel to access the CV joint.
Inspect the CV boot for tears; if damaged, replace the CV joint.
- Remove the axle nut using a socket.
- Detach the CV joint from the hub using a pry bar.
- Install the new CV joint and secure with the axle nut, torquing to manufacturer specifications.

4. Inspect and Replace Steering Rack (if needed)

Tools Required: Socket set, screwdrivers, alignment tools.
Locate the steering rack under the vehicle.
Disconnect any electrical connectors and fluid lines attached to the steering rack.
Remove the mounting bolts and detach the steering rack from the vehicle.
Install the new steering rack, ensuring all connections are secure and torqued to specifications.

5. Inspect and Replace Strut Assemblies (if needed)

Tools Required: Spring compressor, socket set, torque wrench.
Remove the wheel to access the strut assembly.
Use the spring compressor to safely compress the coil spring.
Remove the strut assembly from the vehicle.
Install the new strut assembly, ensuring it is properly torqued to specifications.