how to fix BMW 3 Series F30/F31 (2012-2019) wipers not working during rain

BMW 3 Series F30/F31 (2012-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

518 words

Problem Statement

The windshield wipers on a BMW 3 Series F30/F31 (2012-2019) are not functioning during rain, leading to visibility issues.

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shock.
•Allow the engine to cool before working near any hot components.

Symptoms

•Wipers do not activate when the wiper switch is turned on
•No sound or movement from the wiper motor
•Wiper fluid does not spray
•Wiper control lights on the dashboard may not illuminate
•Possible intermittent wiper function in dry conditions

Diagnostic Steps

1
Check the wiper fuse using the fuse box diagram to locate the appropriate fuse.
2
Test the wiper switch functionality with a multimeter to ensure it is sending a signal.
3
Inspect the wiper motor for any signs of physical damage or corrosion.
4
Verify the wiper linkage connections to ensure they are intact and not broken.
5
Check for power at the wiper motor connector when the wiper switch is activated.

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
•Torque wrench

Parts Required

•Wiper fuse (if blown)
•Wiper motor (if faulty)
•Wiper switch (if faulty)

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Diagnostic Steps

1
Check the wiper fuse using the fuse box diagram to locate the appropriate fuse.
2
Test the wiper switch functionality with a multimeter to ensure it is sending a signal.
3
Inspect the wiper motor for any signs of physical damage or corrosion.
4
Verify the wiper linkage connections to ensure they are intact and not broken.
5
Check for power at the wiper motor connector when the wiper switch is activated.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, torque wrench.
Ensure the vehicle is parked on a level surface with the ignition off.
Disconnect the battery to prevent electrical shock.

2. Fuse Replacement

Locate the fuse box (typically found under the dashboard or in the engine bay).
Remove the wiper fuse and inspect it; if blown, replace it with a new fuse of the same amperage.

3. Wiper Motor Inspection

Remove any necessary trim panels to access the wiper motor.
Disconnect the motor wiring harness.
Use a multimeter to check for voltage at the motor connector.
- If no voltage is present, trace back to the wiper switch and wiring.

4. Wiper Switch Testing

Remove the steering column cover to access the wiper switch.
Disconnect the switch and test each terminal with a multimeter for continuity when the switch is activated.
Replace the wiper switch if it fails the continuity test.

5. Wiper Motor Replacement (if necessary)

If the motor is confirmed to be faulty, remove it by unscrewing the mounting bolts.
Install the new wiper motor in reverse order of removal.
Reconnect the wiring harness and ensure all connections are secure.

6. Reassemble and Test

Reinstall any trim panels that were removed.
Reconnect the battery.
Test the wiper system to ensure proper functionality.