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my BMW 5 Series F10/F11 (2010-2017) won't start after filling up with gas, what could be wrong? - BMW 5 Series
Home/Cars/BMW/5 Series/F10/F11 (2010-2017)/my BMW 5 Series F10/F11 (2010-2017) won't start after filling up with gas, what could be wrong?

my BMW 5 Series F10/F11 (2010-2017) won't start after filling up with gas, what could be wrong?

BMW 5 Series F10/F11 (2010-2017)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
478 words

Problem Statement

The BMW 5 Series F10/F11 (2010-2017) is experiencing a no-start condition after filling up with gas.

Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before inspecting fuel components to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Engine cranks but does not start
  • •Fuel odor present around the vehicle
  • •Inconsistent fuel gauge readings
  • •Possible fuel pump noise when turning the ignition on

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

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

  • •Locate the fuel pump relay in the fuse box.
  • •Use the multimeter to test the relay for continuity.
  • •Inspect the fuel pump fuse for any signs of damage; replace if necessary.

Parts Required

  • •Fuel pump relay (if faulty)
  • •Fuel pump fuse (if blown)
  • •Fuel lines (if damaged)
  • •Fuel injectors (if faulty)

Additional Information

Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
3 items
Parts Required
4 items

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Ensure safety gear is worn (gloves, goggles).
  • Disconnect the battery to avoid any electrical issues.
2. Check Fuel Pump Relay and Fuse
  • Tools Required: Multimeter, socket set.
  • Locate the fuel pump relay in the fuse box.
  • Use the multimeter to test the relay for continuity.
  • Inspect the fuel pump fuse for any signs of damage; replace if necessary.
3. Test Fuel Pressure
  • Tools Required: Fuel pressure gauge.
  • Disconnect the fuel line from the fuel rail.
  • Connect the fuel pressure gauge to the fuel rail.
  • Turn the ignition to the ON position (do not start) and check the pressure reading; it should be within manufacturer specifications (typically 50-60 psi for many BMW models).
  • If pressure is low, proceed to the next step.
4. Inspect Fuel Lines
  • Visually inspect all fuel lines for cracks or leaks.
  • Tighten any loose connections.
  • Replace any damaged fuel lines.
5. Verify Fuel Injector Functionality
  • Tools Required: Multimeter.
  • Disconnect the electrical connectors from each fuel injector.
  • Test each injector for resistance using a multimeter (check specifications for correct resistance values).
  • Replace any faulty injectors as needed.