how to fix the rear view camera not working in my BMW 3 Series F30/F31 (2012-2019)

BMW 3 Series F30/F31 (2012-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

558 words

Problem Statement

The rear view camera in a BMW 3 Series F30/F31 (2012-2019) is not functioning, preventing the display of the rear view image on the infotainment screen.

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks or shorts.

Symptoms

•Rear view camera display is blank or shows a black screen
•Error message displayed on the infotainment screen
•Camera image is distorted or flickering
•Backup sensors may not activate
•No audible warning tone when reversing

Diagnostic Steps

1
Check for any error codes using an OBD-II scanner to identify potential electronic issues.
2
Inspect the rear camera lens for dirt, damage, or obstructions that may affect visibility.
3
Verify the connection of the rear camera harness for any loose or corroded connectors.
4
Test the rear view camera's voltage supply using a multimeter to ensure it receives adequate power.
5
Examine the vehicle’s fuse box for any blown fuses related to the rear view camera system.
6
Check the settings in the infotainment system to ensure the rear camera is enabled.

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

•Sub-steps:**
•Locate the rear view camera, usually mounted on the trunk lid or bumper.
•Reconnect the battery and test if the camera is operational.

Parts Required

•Rear view camera (if replacement is necessary)
•Fuse (if blown)

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Diagnostic Steps

1
Check for any error codes using an OBD-II scanner to identify potential electronic issues.
2
Inspect the rear camera lens for dirt, damage, or obstructions that may affect visibility.
3
Verify the connection of the rear camera harness for any loose or corroded connectors.
4
Test the rear view camera's voltage supply using a multimeter to ensure it receives adequate power.
5
Examine the vehicle’s fuse box for any blown fuses related to the rear view camera system.
6
Check the settings in the infotainment system to ensure the rear camera is enabled.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and turn off the ignition.
Disconnect the battery to avoid electrical shorts.

2. Inspect and Clean Camera

Tools Required: Microfiber cloth, cleaning solution
Sub-steps:
1. Locate the rear view camera, usually mounted on the trunk lid or bumper.
2. Clean the camera lens gently with a microfiber cloth and cleaning solution to remove any dirt or grime.
3. Reconnect the battery and test if the camera is operational.

3. Check and Repair Connections

Tools Required: Socket set or screwdriver set
Sub-steps:
1. Remove the panel covering the rear camera area (if applicable).
2. Inspect the wiring harness and connectors for damage or corrosion.
3. If any connectors are loose, firmly reconnect them. If damaged, replace the wiring harness.
4. Reinstall any panels removed and reconnect the battery. Test the camera again.

4. Replace Camera/Fuse if Necessary

Tools Required: Socket set, multimeter
Sub-steps:
1. If the camera is still not functioning, use a multimeter to check the voltage at the camera connector.
2. If there is no power, locate the fuse for the rear view camera in the fuse box and inspect it.
3. If the fuse is blown, replace it with one of the same amperage.
4. If the camera still does not work, replace the rear view camera unit by removing it from its mounting and installing a new unit.