how to fix BMW 5 Series G30/G31 (2017-2024) wipers not working during rain

BMW 5 Series G30/G31 (2017-2024)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

509 words

Problem Statement

The windshield wipers on a BMW 5 Series G30/G31 (2017-2024) are not functioning properly during rain, potentially indicating an electrical issue or a problem with the wiper compon

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shocks or shorts.
•Allow the vehicle to cool before working on any components to avoid burns.

Symptoms

•Windshield wipers do not activate when switch is engaged
•Wiper blades remain stationary during rain
•Possible clicking noise from the wiper motor when attempting to operate
•Wipers may operate intermittently or erratically
•Warning message on the dashboard related to wiper system

Diagnostic Steps

1
Check the wiper fuse in the fuse box for continuity.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the wiper switch for proper operation and continuity.
4
Test the wiper motor directly for functionality using a multimeter.
5
Examine the wiper linkage for any signs of wear or disconnection.
6
Inspect the wiring harness for damage or corrosion.

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
•Multimeter
•Socket set
•Screwdriver set
•Fuse puller

Parts Required

•Wiper motor (if faulty)
•Wiper fuse (if blown)
•Wiper linkage (if damaged)

Related Faults

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Diagnostic Steps

1
Check the wiper fuse in the fuse box for continuity.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the wiper switch for proper operation and continuity.
4
Test the wiper motor directly for functionality using a multimeter.
5
Examine the wiper linkage for any signs of wear or disconnection.
6
Inspect the wiring harness for damage or corrosion.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Replace Fuse

Locate the fuse box, typically found in the glove compartment or under the dashboard.
Remove the designated fuse for the windshield wipers using a fuse puller.
Inspect the fuse for any signs of damage; replace it if blown.
Reconnect the battery and test the wipers again.

3. Replace Wiper Motor

If the wiper motor is found to be faulty, proceed with replacement:
- Remove the plastic cover from the wiper assembly by unscrewing any retaining clips or screws.
- Disconnect the wiring harness from the wiper motor.
- Unscrew the motor from its mounting bracket.
- Install the new wiper motor by reversing the removal steps.
- Reconnect the wiring harness and cover.

4. Inspect and Reattach Wiper Linkage

If the wiper linkage is damaged or disconnected:
- Remove the wiper arms by unscrewing the nuts holding them in place.
- Carefully pull the arms off the motor spindle.
- Inspect the linkage for bends or breaks; replace if necessary.
- Reattach the linkage to the motor and secure all connections before reassembling the wipers.