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Home/Cars/BMW/5 Series/F10/F11 (2010-2017)/why is my BMW 5 Series F10/F11 (2010-2017) not responding to the throttle

why is my BMW 5 Series F10/F11 (2010-2017) not responding to the throttle

BMW 5 Series F10/F11 (2010-2017)

Severity: mediumDifficulty: medium2-4 hours
3 min read
514 words

Problem Statement

## Problem Statement The BMW 5 Series F10/F11 (2010-2017) is experiencing unresponsiveness to throttle input, indicating a potential issue with the engine management system or throttle control.

Repair Time
2-4 hours

Safety Warnings

  • ⚠Safety Warnings:**
  • ⚠Disconnect battery before working on electrical systems.
  • ⚠Allow engine to cool before opening the throttle body.

Symptoms

  • •Check engine light illuminated
  • •Engine stalling or failing to accelerate
  • •Irregular engine idle
  • •Poor fuel economy
  • •Throttle response is delayed or non-existent
  • •Unusual sounds from the engine (e.g., sputtering)

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to identify any fault codes related to the throttle or engine management.
  2. 2Inspect the throttle body for cleanliness and ensure it is functioning properly.
  3. 3Check the accelerator pedal position sensor for proper operation and voltage readings.
  4. 4Inspect all related wiring and connectors for signs of damage or corrosion.
  5. 5Verify the functionality of the Engine Control Unit (ECU) by checking for software updates or error codes.
  6. 6Test for vacuum leaks in the intake system that could affect engine performance.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the battery to ensure safety while working on electrical components.
  • Allow the engine to cool completely before proceeding.

2. Clean Throttle Body

  • Remove the air intake duct connected to the throttle body.
  • Using throttle body cleaner and a soft brush, clean the throttle plate and surrounding areas to remove carbon buildup.
  • Reassemble the air intake duct ensuring all clamps are secure.

3. Inspect and Replace Accelerator Pedal Position Sensor

  • Locate the accelerator pedal position sensor connected to the throttle pedal.
  • Disconnect the wiring harness from the sensor.
  • Remove the sensor using a socket set and replace it with a new one.
  • Reconnect the wiring harness and test for proper throttle response.

4. Check and Repair Wiring

  • Visually inspect the wiring harness connected to the throttle body and accelerator pedal for any frays or damage.
  • Use a multimeter to test continuity in the wires.
  • Repair or replace any damaged wiring as necessary.

5. Reconnect Battery and Clear Codes

  • Reconnect the battery terminals.
  • Use the OBD-II scanner to clear any stored fault codes.
  • Start the engine and allow it to reach operating temperature.

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
  • Throttle body cleaner
  • Soft brush
  • Multimeter

Parts Required

  • Accelerator pedal position sensor (if replacement is necessary)
  • Throttle body gasket (if removed)

Additional Information

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

2 items

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