why does my Volkswagen Golf MK7 (2015-2019) engine rev up but won't accelerate

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, transmission fluid, funnel, rags.
• Disconnect the battery to ensure safety while working on electrical components.
• Ensure the vehicle is on a level surface and secured with wheel chocks.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick and wipe it clean; reinsert and check fluid level against the markings.
  3. If low, add the appropriate transmission fluid (consult owner’s manual for specifications).
  4. If fluid is burnt or contaminated, drain the transmission fluid completely.
  5. Replace with new transmission fluid, ensuring to fill to the proper level.

3. Inspect and Clean Throttle Body

• Sub-steps:
  1. Remove the air intake duct connected to the throttle body.
  2. Use a throttle body cleaner and a soft cloth to remove carbon buildup.
  3. Ensure the throttle plate moves freely and is not sticking.
  4. Reassemble the air intake duct securely.

4. Examine Accelerator Pedal Position Sensor

• Sub-steps:
  1. Disconnect the sensor connector.
  2. Use a multimeter to test the sensor resistance while pressing the accelerator pedal.
  3. If readings are inconsistent or outside specifications, replace the sensor.
  4. Reconnect the sensor and ensure all connections are secure.