FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
my BMW 5 Series F10/F11 (2010-2017) engine runs rough at idle, what could it be - BMW 5 Series
Home/Cars/BMW/5 Series/F10/F11 (2010-2017)/my BMW 5 Series F10/F11 (2010-2017) engine runs rough at idle, what could it be

my BMW 5 Series F10/F11 (2010-2017) engine runs rough at idle, what could it be

BMW 5 Series F10/F11 (2010-2017)

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

Problem Statement

The BMW 5 Series F10/F11 (2010-2017) is experiencing a rough idle, indicating potential issues with the engine's performance.

Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems.
  • •Allow engine to cool before opening any components to prevent burns.

Symptoms

  • •Rough engine idle
  • •Check engine light illuminated
  • •Increased fuel consumption
  • •Engine stalling or hesitation during acceleration
  • •Unusual vibrations felt in the cabin
  • •Possible misfire codes present in the OBD-II system

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Socket set
  • •Torque wrench
  • •Throttle body cleaner
  • •Fuel pressure gauge

Parts Required

  • •Spark plugs
  • •Ignition coils (if necessary)
  • •Vacuum hoses (as needed)
  • •Air filter (if dirty)

Additional Information

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

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the battery to prevent any electrical shorts.
  • Allow the engine to cool if it has been running.
2. Replace Spark Plugs
  • Remove the engine cover if applicable.
  • Using a socket set, remove the ignition coils by unscrewing the bolts holding them in place.
  • Disconnect the electrical connectors from each coil.
  • Carefully pull out the old spark plugs using a spark plug socket.
  • Install new spark plugs by inserting them into the cylinder head and tightening to the manufacturer’s specified torque (usually around 15 Nm).
  • Reinstall the ignition coils and ensure electrical connections are secure.
3. Inspect and Clean Throttle Body
  • Remove the air intake duct for access to the throttle body.
  • Use throttle body cleaner and a soft cloth to clean any carbon buildup on the throttle body plate and inner walls.
  • Reattach the air intake duct securely.
4. Repair or Replace Vacuum Lines
  • Visually inspect all vacuum hoses for cracks or leaks.
  • Replace any damaged hoses with new ones of the same diameter.
  • Ensure all connections are tight and secure.
5. Fuel Pressure Check
  • Connect a fuel pressure gauge to the fuel rail.
  • Turn the ignition to the "ON" position without starting the engine to check the fuel pressure reading.
  • Compare the reading to the manufacturer's specifications (typically around 50-60 psi).
  • If pressure is low, inspect or replace the fuel filter and consider testing the fuel pump.