why does my BMW 5 Series F10/F11 (2010-2017) make a whirring noise when starting?

BMW 5 Series F10/F11 (2010-2017)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

490 words

Problem Statement

The BMW 5 Series F10/F11 (2010-2017) is exhibiting a whirring noise during the starting process, indicating a potential issue with the starter motor or associated components.

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before beginning any electrical work.
•Allow the engine to cool before working on any components.

Symptoms

•Whirring noise occurring when the ignition key is turned
•Difficulty starting the engine
•No engine turnover or cranking
•Possible clicking sound in addition to whirring
•Starter motor running continuously even after the engine starts

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes related to the starting system.
2
Inspect the battery voltage to ensure it is fully charged and in good condition.
3
Check the starter motor connections for corrosion or loose wiring.
4
Test the starter relay for proper operation using a multimeter.
5
Examine the ignition switch for failure or poor connection.
6
Inspect the flywheel for damage or wear that could affect the starter engagement.

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
•Wrench set
•Torque wrench
•Ratchet and extension
•Safety glasses

Parts Required

•Starter motor (if replacement is needed)
•Starter solenoid (if applicable)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes related to the starting system.
2
Inspect the battery voltage to ensure it is fully charged and in good condition.
3
Check the starter motor connections for corrosion or loose wiring.
4
Test the starter relay for proper operation using a multimeter.
5
Examine the ignition switch for failure or poor connection.
6
Inspect the flywheel for damage or wear that could affect the starter engagement.

Solution

1. Preparation

Ensure the vehicle is in park (automatic) or neutral (manual).
Disconnect the negative battery terminal to prevent electrical shorts.
Gather tools required for the repair.

2. Remove Starter Motor

Tools Required: Socket set, wrench set, torque wrench, ratchet, extension, safety glasses.
Loosen and remove the bolts securing the starter motor to the engine block.
Disconnect the electrical connectors from the starter motor.
Carefully remove the starter motor from its mounting position.

3. Inspect and Replace Components

Visually inspect the starter motor for signs of wear such as burned or damaged windings.
Check the starter solenoid for proper operation; if faulty, replace it.
If necessary, replace the entire starter motor with a new or refurbished unit.
Use a torque wrench to secure the starter motor bolts to manufacturer specifications.

4. Reconnect and Test

Reconnect the electrical connectors to the starter motor.
Reattach the negative battery terminal.
Start the vehicle to verify that the whirring noise has been resolved.