my BMW 5 Series F10/F11 (2010-2017) won’t start and just clicks what should I check

BMW 5 Series F10/F11 (2010-2017)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

The BMW 5 Series F10/F11 (2010-2017) is experiencing a no-start condition characterized by a clicking sound when attempting to start the engine.

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is securely lifted if working underneath.

Symptoms

•Clicking noise when turning the ignition key
•Dashboard lights dimming or flickering
•No engine cranking or turning over
•Possible electrical accessory malfunction
•Battery warning light illuminated

Diagnostic Steps

1
Check battery voltage using a multimeter; it should read approximately 12.6 volts for a fully charged battery.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition switch with a remote starter switch or jumper wire.
4
Check fuses related to the starting system using a fuse tester or visually inspecting them.
5
Inspect the ignition switch for proper operation.
6
Verify that the vehicle is in "Park" or "Neutral" position (for automatic transmissions) or that the clutch is engaged (for manuals).

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

•Multimeter
•Socket set
•Wrench set
•Jumper cables
•Ensure the vehicle is parked on a flat surface and the ignition is turned off.

Parts Required

•Battery (if voltage is low or it fails the test)
•Starter motor (if found to be faulty)
•Ignition switch (if tested and determined faulty)

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Diagnostic Steps

1
Check battery voltage using a multimeter; it should read approximately 12.6 volts for a fully charged battery.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition switch with a remote starter switch or jumper wire.
4
Check fuses related to the starting system using a fuse tester or visually inspecting them.
5
Inspect the ignition switch for proper operation.
6
Verify that the vehicle is in "Park" or "Neutral" position (for automatic transmissions) or that the clutch is engaged (for manuals).

Solution

1. Preparation

Tools Required:
- Multimeter
- Socket set
- Wrench set
- Jumper cables
Ensure the vehicle is parked on a flat surface and the ignition is turned off.

2. Battery Inspection

Disconnect the negative terminal of the battery first, followed by the positive terminal.
Clean any corrosion from the terminals using a wire brush and a mixture of baking soda and water.
Reconnect the battery terminals securely, starting with the positive terminal, then the negative terminal.

3. Starter Motor Testing

Locate the starter motor, typically located near the transmission bell housing.
Disconnect the wiring harness from the starter.
Use a multimeter to check for voltage at the starter terminal when the ignition key is turned to the start position.
If voltage is present, proceed to remove the starter motor:
- Remove the bolts securing the starter to the engine.
- Carefully pull out the starter and replace it with a new or refurbished unit.
- Torque the bolts to the manufacturer's specification (usually around 20-30 Nm).

4. Ignition Switch Check

If the starter motor is functional, check the ignition switch:
- Remove the steering column cover.
- Test the ignition switch with a multimeter to ensure it sends power to the starter when turned.
- If faulty, replace the ignition switch.