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my BMW 5 Series G30/G31 (2017-2024) transmission jerks when changing gears what’s wrong - BMW 5 Series
Home/Cars/BMW/5 Series/G30/G31 (2017-2024)/my BMW 5 Series G30/G31 (2017-2024) transmission jerks when changing gears what’s wrong

my BMW 5 Series G30/G31 (2017-2024) transmission jerks when changing gears what’s wrong

BMW 5 Series G30/G31 (2017-2024)

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

Problem Statement

The transmission in a BMW 5 Series G30/G31 (2017-2024) is experiencing jerking during gear changes, indicating a potential issue with the transmission system.

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 opening the transmission system.

Symptoms

  • •Jerking sensation during gear shifts
  • •Delayed or harsh engagement of gears
  • •Check engine light illuminated
  • •Unusual noises during gear changes (clunking or grinding)
  • •Poor acceleration response
  • •Fluid leakage underneath the vehicle

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

  • •If the fluid is burnt or contaminated, proceed to drain and replace the fluid.

Parts Required

  • •Transmission fluid (specific to BMW)
  • •Transmission filter (if applicable)
  • •Transmission solenoids (if faulty)
  • •Transmission mounts (if damaged)

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
  • Disconnect the battery to prevent electrical shorts or shocks.
2. Check Transmission Fluid
  • Tools Required: Transmission funnel, fluid catch pan
  • Remove the transmission dipstick and check the fluid level. If low, add the appropriate transmission fluid as specified in the owner's manual.
  • If the fluid is burnt or contaminated, proceed to drain and replace the fluid.
  • Sub-steps:
    • Place a fluid catch pan under the transmission pan.
    • Remove the transmission pan bolts and carefully lower the pan.
    • Clean the pan and replace the filter if applicable.
    • Refill with the correct type of transmission fluid.
3. Inspect Transmission Control Module (TCM)
  • Tools Required: Multimeter, socket set
  • Remove the TCM from its mounting location.
  • Inspect for any visible damage or corrosion on connectors.
  • Test the TCM using a multimeter to ensure it is functioning correctly.
  • Sub-steps:
    • Reconnect the TCM and secure it back in place.
    • Ensure all connections are tight and free from corrosion.
4. Test and Replace Solenoids
  • Tools Required: Multimeter, socket set
  • Remove the transmission pan if it hasn’t been removed yet.
  • Locate and test each transmission solenoid using a multimeter.
  • Sub-steps:
    • If a solenoid is found to be faulty, replace it with a new one.
    • Reassemble the transmission pan and refill the transmission fluid.
5. Inspect Transmission Mounts
  • Tools Required: Jack and jack stands, socket set
  • Safely lift the vehicle and inspect the transmission mounts for cracks or excessive wear.
  • Sub-steps:
    • If damaged, remove the old mounts and install new ones, ensuring proper torque specifications are followed.