External dust cover for hinge AUDI A4 2010

OEM: 8K0863187B

Disassembled car photo

Engine running

  • Tested before shipping
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What is this part and why does it matter?

The outer CV joint dust boot protects the outer constant velocity joint (nearest the wheel) from dirt and moisture while retaining its grease.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Grease flung around the inside of the wheel or wheel arch
  • Torn or split boot visible on inspection
  • Clicking noise when turning, developing after boot failure goes unaddressed

Installation information

Requires removing the driveshaft for access — always repack the joint with fresh grease before fitting a new boot.

Frequently asked questions

The outer joint works at a sharper angle when the wheel is turned — once contaminated from a torn boot, the resulting wear becomes most audible specifically during turns.

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