BOSCH 1 120 905 531 Drive Bearing, alternator

26.72

  • Item number:1 120 905 531
  • Manufacturer:BOSCH
  • EAN number:3165141991543
  • Condition:New
Trade numbers: BOSCH 1 120 905 531

Description

The “Drive bearing alternator” in your Audi might refer to two different components:

1. Pulley bearing:

  • This bearing sits within the pulley attached to the alternator shaft. It allows the pulley to rotate smoothly while minimizing friction and wear.
  • Issues with the drive bearing can manifest as:
    • Whining or grinding noises coming from the alternator area, especially at higher engine speeds.
    • Reduced alternator output and potential warning lights on the dashboard.
    • Excessive wear on the alternator belt due to misalignment caused by a faulty bearing.

2. Alternator shaft bearing:

  • This bearing supports the rotating shaft inside the alternator itself. It’s crucial for smooth operation and efficient electricity generation.
  • Symptoms of a failing alternator shaft bearing can include:
    • Similar noises as the pulley bearing, but not necessarily related to engine speed.
    • Voltage fluctuations or dips, potentially affecting electrical components in your car.
    • Complete alternator failure, leaving your car reliant on the battery until repair.

Important notes:

  • To clarify which bearing you’re referring to, it would be helpful to know your specific Audi model and year, as the terminology and component arrangements can vary.
  • Diagnosing the exact issue requires an inspection by a qualified mechanic who can pinpoint the source of the noise or performance problem.
  • Replacing either bearing typically involves removing the alternator and disassembling it, so professional expertise is recommended for this repair.

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