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

medium

Severity

3 min read

543 words

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

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

Symptoms

•Grinding noise while turning the steering wheel
•Increased steering effort or stiffness
•Vibration in the steering wheel
•Uneven tire wear
•Clunking or popping sounds in addition to grinding
•Possible fluid leaks from power steering system

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible damage to the CV joints or boots.
3
Examine the suspension components (e.g., control arms, bushings) for wear or damage.
4
Listen for noises while turning the steering wheel at a standstill.
5
Test drive the vehicle to replicate the noise and determine if it occurs at specific angles or speeds.
6
Check tire condition and alignment to rule out uneven wear.

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
•Jack and jack stands
•Screwdrivers
•Pliers

Parts Required

•CV joint (if damaged)
•Control arms or bushings (if worn)
•Power steering fluid (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 to the CV joints or boots.
3
Examine the suspension components (e.g., control arms, bushings) for wear or damage.
4
Listen for noises while turning the steering wheel at a standstill.
5
Test drive the vehicle to replicate the noise and determine if it occurs at specific angles or speeds.
6
Check tire condition and alignment to rule out uneven wear.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery if necessary for electrical components.

2. Inspect and Replace CV Joints

Inspect CV Joints:
- Raise the vehicle using a jack and secure it with jack stands.
- Visually inspect the CV joints and boots for any tears or leaks.
Replace if necessary:
- Remove the wheel to access the CV joint.
- Use a socket set to remove the axle nut.
- Disconnect the lower control arm to free the CV joint.
- Slide the old CV joint out and replace it with a new one, ensuring it is properly seated.
- Reassemble in reverse order and torque the axle nut to manufacturer's specifications (typically around 30-50 Nm).

3. Inspect and Replace Suspension Components

Inspect Suspension:
- Check control arms and bushings for wear.
- If any components are damaged, remove them using appropriate tools (e.g., socket set, wrenches).
Replace as needed:
- Install new control arms or bushings, ensuring proper alignment.
- Torque bolts to manufacturer specifications.

4. Power Steering System Check

Check Fluid:
- Inspect the power steering fluid reservoir for proper level and condition; top off or replace fluid if dirty.
Inspect for Leaks:
- Look for any signs of power steering fluid leaks around hoses and connections.
- Replace any damaged hoses or connections as necessary.