my BMW 3 Series makes a grinding noise when I turn what's wrong

Solution

1. Preparation

• Gather tools and parts
• Park the vehicle on a level surface and engage the parking brake.

2. Inspect and Replace Power Steering Fluid

• Sub-steps:

  1. Locate the power steering reservoir and check fluid levels.
  2. If low, replenish with the manufacturer-recommended fluid.
  3. If the fluid is contaminated, drain and replace it using a siphon pump.

• Tools Required:

  • Siphon pump
  • Power steering fluid

3. Examine and Replace Damaged Components

• Sub-steps:

  1. Inspect the steering rack and tie rod ends for any signs of wear or damage.
  2. If damaged, remove the old tie rod ends using a socket set.
  3. Install new tie rod ends and torque to manufacturer specifications (usually around 37-50 Nm).
  4. Inspect control arms and ball joints; if worn, replace them as well, following the same removal and installation procedures.

• Tools Required:

  • Socket set
  • Torque wrench
  • Ball joint separator (if replacing ball joints)

4. Perform Wheel Alignment

• Sub-steps:

  1. After replacing any worn components, take the vehicle to a professional for a wheel alignment.
  2. Adjust the camber, caster, and toe angles as needed to manufacturer specifications.

• Tools Required:

  • Wheel alignment machine (usually done at a shop)